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Both Broadband and Video exceeded expectations on revenue and profitability
SAN JOSE, Calif., Nov. 3, 2025 /PRNewswire/ -- Harmonic Inc. (NASDAQ: HLIT) today announced its unaudited results for the third quarter of 2025.
"Our third quarter results exceeded our expectations on revenue and profitability for both Broadband and Video," said Nimrod Ben-Natan, president and chief executive officer of Harmonic. "We saw stronger momentum in Broadband with certain customer orders being realized earlier than anticipated, and in Video our growth was led by SaaS. Looking ahead, as expected, we anticipate Broadband revenue growth momentum to increase in 2026 as the year progresses, based on Unified DOCSIS 4.0 ramp readiness, large customer deployment plans and Rest of World accelerated adoption."
Q3 Financial and Business Highlights
Financial
Business
Select Financial Information
| 
                         | 
                      
                         GAAP  | 
                      
                         | 
                      
                         Non-GAAP  | 
                    ||||||||||||||||||||||||||||||||||||||||||
| 
                         Key Financial Results  | 
                      
                         Q3 2025  | 
                      
                         | 
                      
                         Q2 2025  | 
                      
                         | 
                      
                         Q3 2024  | 
                      
                         | 
                      
                         Q3 2025  | 
                      
                         | 
                      
                         Q2 2025  | 
                      
                         | 
                      
                         Q3 2024  | 
                    ||||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         (Unaudited, in millions, except per share data)  | 
                    ||||||||||||||||||||||||||||||||||||||||||||
| 
                         Net revenue  | 
                      
                         $  | 
                      
                         142.4  | 
                      
                         | 
                      
                         $  | 
                      
                         138.0  | 
                      
                         | 
                      
                         $  | 
                      
                         195.8  | 
                      
                         | 
                      
                         | 
                      
                         *  | 
                      
                         | 
                      
                         | 
                      
                         *  | 
                      
                         | 
                      
                         | 
                      
                         *  | 
                    ||||||||||||||||||||||||||||
| 
                         Net income  | 
                      
                         $  | 
                      
                         2.7  | 
                      
                         | 
                      
                         $  | 
                      
                         2.9  | 
                      
                         | 
                      
                         $  | 
                      
                         21.7  | 
                      
                         | 
                      
                         $  | 
                      
                         14.1  | 
                      
                         | 
                      
                         $  | 
                      
                         10.3  | 
                      
                         | 
                      
                         $  | 
                      
                         29.9  | 
                    ||||||||||||||||||||||||||||
| 
                         Net income per share  | 
                      
                         $  | 
                      
                         0.02  | 
                      
                         | 
                      
                         $  | 
                      
                         0.03  | 
                      
                         | 
                      
                         $  | 
                      
                         0.19  | 
                      
                         | 
                      
                         $  | 
                      
                         0.12  | 
                      
                         | 
                      
                         $  | 
                      
                         0.09  | 
                      
                         | 
                      
                         $  | 
                      
                         0.26  | 
                    ||||||||||||||||||||||||||||
| 
                         | 
                    |||||||||||||||||||||||||||||||||||||||||||||
| 
                         * Not applicable  | 
                    |||||||||||||||||||||||||||||||||||||||||||||
| 
                         | 
                    |||||||||||||||||||||||||||||||||||||||||||||
| 
                         Other Financial Information  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         Q3 2025  | 
                      
                         | 
                      
                         Q2 2025  | 
                      
                         | 
                      
                         Q3 2024  | 
                    |||||||||||||||||||||||||||||||
| 
                         | 
                      
                         | 
                      
                         (Unaudited, in millions)  | 
                    |||||||||||||||||||||||||||||||||||||||||||
| 
                         Adjusted EBITDA for the quarter (1)  | 
                      
                         $  | 
                      
                         21.9  | 
                      
                         | 
                      
                         $  | 
                      
                         17.0  | 
                      
                         | 
                      
                         $  | 
                      
                         43.4  | 
                    |||||||||||||||||||||||||||||||||||||
| 
                         Bookings for the quarter  | 
                      
                         $  | 
                      
                         133.3  | 
                      
                         | 
                      
                         $  | 
                      
                         158.4  | 
                      
                         | 
                      
                         $  | 
                      
                         171.4  | 
                    |||||||||||||||||||||||||||||||||||||
| 
                         Backlog and deferred revenue as of quarter end  | 
                      
                         $  | 
                      
                         494.5  | 
                      
                         | 
                      
                         $  | 
                      
                         504.5  | 
                      
                         | 
                      
                         $  | 
                      
                         584.7  | 
                    |||||||||||||||||||||||||||||||||||||
| 
                         Cash and cash equivalents as of quarter end  | 
                      
                         $  | 
                      
                         127.4  | 
                      
                         | 
                      
                         $  | 
                      
                         123.9  | 
                      
                         | 
                      
                         $  | 
                      
                         58.2  | 
                    |||||||||||||||||||||||||||||||||||||
| 
                         | 
                    
| 
                         (1) Adjusted EBITDA is a Non-GAAP financial measure. Refer to "Preliminary Net Income to Consolidated Segment Adjusted EBITDA Reconciliation" below for a reconciliation to net income, the most comparable GAAP measure.  | 
                    
Explanations regarding our use of Non-GAAP financial measures and related definitions, and reconciliations of our GAAP and Non-GAAP measures, are provided in the sections below entitled "Use of Non-GAAP Financial Measures" and "GAAP to Non-GAAP Reconciliations."
Financial Guidance
| 
                         | 
                      
                         | 
                      
                         Q4 2025 GAAP Financial Guidance  | 
                    ||||||||||||||||
| 
                         | 
                      
                         | 
                      
                         Low  | 
                      
                         | 
                      
                         High  | 
                    ||||||||||||||
| 
                         (Unaudited, in millions, except percentages and per share data)  | 
                      
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                      
                         | 
                      
                         Total GAAP  | 
                      
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                      
                         | 
                      
                         Total GAAP  | 
                    ||||||
| 
                         Net revenue  | 
                      
                         | 
                      
                         $  | 
                      
                         85  | 
                      
                         | 
                      
                         $  | 
                      
                         48  | 
                      
                         | 
                      
                         $  | 
                      
                         133  | 
                      
                         | 
                      
                         $  | 
                      
                         95  | 
                      
                         | 
                      
                         $  | 
                      
                         52  | 
                      
                         | 
                      
                         $  | 
                      
                         147  | 
                    
| 
                         Gross margin %  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         53.4 %  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         55.8 %  | 
                    
| 
                         Gross profit (1)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         71  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         82  | 
                    
| 
                         Tax rate  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         45 %  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         45 %  | 
                    
| 
                         Net income  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         5  | 
                    
| 
                         Net income per share  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.04  | 
                    
| 
                         Shares (2)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         113.1  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         113.1  | 
                    
| 
                         | 
                    
| 
                         (1) Includes estimated tariff impacts of approximately $1 million  | 
                    
| 
                         (2) Diluted shares assumes stock price at $9.40 (Q3 2025 average price).  | 
                    
| 
                         | 
                      
                         | 
                      
                         Q4 2025 Non-GAAP Financial Guidance (1)  | 
                    ||||||||||||||||
| 
                         | 
                      
                         | 
                      
                         Low  | 
                      
                         | 
                      
                         High  | 
                    ||||||||||||||
| 
                         (Unaudited, in millions, except percentages and per share data)  | 
                      
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                      
                         | 
                      
                         Total  | 
                      
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                      
                         | 
                      
                         Total  | 
                    ||||||
| 
                         Gross margin %  | 
                      
                         | 
                      
                         | 
                      
                         48.0 %  | 
                      
                         | 
                      
                         | 
                      
                         66.0 %  | 
                      
                         | 
                      
                         | 
                      
                         54.5 %  | 
                      
                         | 
                      
                         | 
                      
                         50.0 %  | 
                      
                         | 
                      
                         | 
                      
                         67.0 %  | 
                      
                         | 
                      
                         | 
                      
                         56.0 %  | 
                    
| 
                         Gross profit (2)  | 
                      
                         | 
                      
                         $  | 
                      
                         41  | 
                      
                         | 
                      
                         $  | 
                      
                         31  | 
                      
                         | 
                      
                         $  | 
                      
                         72  | 
                      
                         | 
                      
                         $  | 
                      
                         48  | 
                      
                         | 
                      
                         $  | 
                      
                         35  | 
                      
                         | 
                      
                         $  | 
                      
                         83  | 
                    
| 
                         Adjusted EBITDA(3)  | 
                      
                         | 
                      
                         $  | 
                      
                         10  | 
                      
                         | 
                      
                         $  | 
                      
                         3  | 
                      
                         | 
                      
                         $  | 
                      
                         13  | 
                      
                         | 
                      
                         $  | 
                      
                         16  | 
                      
                         | 
                      
                         $  | 
                      
                         6  | 
                      
                         | 
                      
                         $  | 
                      
                         22  | 
                    
| 
                         Tax rate  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         21 %  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         21 %  | 
                    
| 
                         Net income per share  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.06  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.12  | 
                    
| 
                         Shares (4)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         113.1  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         113.1  | 
                    
| 
                         | 
                    
| 
                         (1) Refer to "Use of Non-GAAP Financial Measures" and "GAAP to Non-GAAP Reconciliations on Financial Guidance" below. Components may not sum to total due to rounding.  | 
                    
| 
                         (2) Includes estimated tariff impacts of approximately $1 million  | 
                    
| 
                         (3) Refer to "Net Income to Consolidated Adjusted EBITDA Reconciliation on Financial Guidance" below for a reconciliation to net income (loss), the most comparable GAAP measure.  | 
                    
| 
                         (4) Diluted shares assumes stock price at $9.40 (Q3 2025 average price).  | 
                    
Conference Call Information
Harmonic will host a conference call to discuss its financial results at 2:00 p.m. PT (5:00 p.m. ET) on Monday, November 3, 2025. The live webcast will be available on the Harmonic Investor Relations website at http://investor.harmonicinc.com. To participate via telephone, please register in advance using this link, https://register-conf.media-server.com/register/BI15f6a52a96984250b357958fe76332c8. A replay will be available after 5:00 p.m. PT on the same website.
About Harmonic Inc.
Harmonic (NASDAQ: HLIT), the worldwide leader in virtualized broadband and video delivery solutions, enables media companies and service providers to deliver ultra-high-quality video streaming and broadcast services to consumers globally. The company revolutionized broadband networking via the industry's first virtualized broadband solution, enabling operators to more flexibly deploy gigabit internet service to consumers' homes and mobile devices. Whether simplifying OTT video delivery via innovative cloud and software platforms, or powering the delivery of gigabit internet services, Harmonic is changing the way media companies and service providers monetize live and on-demand content on every screen. More information is available at www.harmonicinc.com.
Legal Notice Regarding Forward-Looking Statements
This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including statements related to anticipated customer purchases and deployments of our Unified DOCSIS 4.0 solutions and our expectations regarding: net revenue, gross margins, operating expenses, operating income (loss), Adjusted EBITDA, tax expense and tax rate, and net income (loss) per diluted share. Our expectations regarding these matters may not materialize, and actual results in future periods are subject to risks and uncertainties that could cause actual results to differ materially from those projected. These risks include, in no particular order, the following: customer concentration and consolidation; loss of one or more key customers; delays or decreases in capital spending in the cable, satellite telco, broadcast and media industries; the possibility that our products will not generate sales that are commensurate with our expectations or that our cost of revenue or operating expenses may exceed our expectations; the market and technology trends underlying our Broadband and Video businesses will not continue to develop in their current direction or pace; the impact of tariffs and general economic conditions on our sales and operations; the mix of products and services sold in various geographies and the effect it has on gross margins; our ability to develop new and enhanced products in a timely manner and market acceptance of our new or existing products; risks associated with our international operations; exchange rate fluctuations of the currencies in which we conduct business; risks associated with our cOS™ and VOS® product solutions; dependence on various broadband and video industry trends; inventory management; the lack of timely availability or the impact of increases in the prices of parts or raw materials necessary to produce our products; the effect of competition, on both revenue and gross margins; difficulties associated with rapid technological changes in our markets; risks associated with unpredictable sales cycles; our dependence on contract manufacturers and sole or limited source suppliers; stock repurchases may not be conducted in the timeframe or in the manner we expect, or at all; and the impact on our business of natural disasters. The forward-looking statements contained in this press release are also subject to other risks and uncertainties, including those more fully described in Harmonic's filings with the Securities and Exchange Commission, including our most recent Annual Report on Form 10-K for the year ended December 31, 2024, our most recent Quarterly Report on Form 10-Q and our Current Reports on Form 8-K. The forward-looking statements in this press release are based on information available to the Company as of the date hereof, and Harmonic disclaims any obligation to update any forward-looking statements.
Use of Non-GAAP Financial Measures
The Company reports its financial results in accordance with accounting principles generally accepted in the United States ("GAAP" or referred to herein as "reported"). However, management believes that certain Non-GAAP financial measures provide management and other users with additional meaningful financial information that should be considered when assessing our ongoing performance. Our management regularly uses our supplemental Non-GAAP financial measures internally to understand, manage and evaluate our business, establish operating budgets, set internal measurement targets and make operating decisions.
These Non-GAAP measures are not in accordance with, or an alternative for, measures prepared in accordance with generally accepted accounting principles and may be different from Non-GAAP measures used by other companies. In addition, these Non-GAAP measures are not based on any comprehensive set of accounting rules or principles. The Company believes that Non-GAAP measures have limitations in that they do not reflect all of the amounts associated with Harmonic's results of operations as determined in accordance with GAAP and that these measures should only be used to evaluate Harmonic's results of operations in conjunction with the corresponding GAAP measures.
The Company believes that the presentation of Non-GAAP measures, when shown in conjunction with the corresponding GAAP measures, provides useful information to investors and management regarding financial and business trends relating to its financial condition and its historical and projected results of operations. Non-GAAP financial measures should be viewed in addition to, and not as an alternative to, the Company's reported results prepared in accordance with GAAP.
The Non-GAAP measures presented here are: Gross profit, operating expenses, income (loss) from operations, non-operating expenses and net income (loss), Adjusted EBITDA (including those amounts as a percentage of revenue) and net income (loss) per diluted share. The presentation of Non-GAAP information is not intended to be considered in isolation or as a substitute for results prepared in accordance with GAAP, and is not necessarily comparable to Non-GAAP results published by other companies. A reconciliation of the historical Non-GAAP financial measures discussed in this press release to the most directly comparable historical GAAP financial measures is included with the financial statements provided with this press release. The Non-GAAP adjustments described below have historically been excluded from our GAAP financial measures.
Our Non-GAAP financial measures reflect adjustments based on the following items, as well as the related income tax effects:
Stock-based compensation - Although stock-based compensation is a key incentive offered to our employees, we continue to evaluate our business performance excluding stock-based compensation expenses. We believe that management is limited in its ability to project the impact stock-based compensation would have on our operating results. In addition, for comparability purposes, we believe it is useful to provide a Non-GAAP financial measure that excludes stock-based compensation in order to better understand the long-term performance of our core business and to facilitate the comparison of our results to the results of our peer companies.
Restructuring and related charges - Harmonic from time to time incurs restructuring charges which primarily consist of employee severance, one-time termination benefits related to the reduction of its workforce, and other costs. These charges are associated with material business shifts. We exclude these items because we do not believe they are reflective of our ongoing long-term business and operating results.
Non-cash interest expense related to convertible notes - We record the amortization of issuance costs as non-cash interest expense. We believe that excluding these costs provides meaningful supplemental information regarding operational performance and liquidity, along with enhancing investors' ability to view the Company's results from management's perspective. In addition, we believe excluding these costs from the Non-GAAP measures facilitates comparisons to our historical operating results and comparisons to peer company operating results.
Depreciation - Depreciation expense is excluded from Adjusted EBITDA as this is a non-cash item unrelated to the ordinary course of our business and not reflective of our underlying business performance.
Non-recurring advisory fees - There were non-recurring costs that we excluded from Non-GAAP results relating to professional accounting, tax and legal fees associated with strategic corporate initiatives.
Asset impairment and related charges - We exclude asset impairment and related charges due to the nature of such expenses being unusual and arising outside the ordinary course of continuing operations. These costs primarily consist of impairments of fixed assets, right-of-use assets and related leasehold improvements, and other unrecoverable facility costs due to the intended change in use of certain leased space.
Discrete tax items and tax effect of Non-GAAP adjustments - The income tax effect of Non-GAAP adjustments relates to the tax effect of the adjustments that we incorporate into Non-GAAP financial measures in order to provide a more meaningful measure of Non-GAAP net income. It also includes a non-cash adjustment related to the method change for capitalization of research and development expenses under Section 174 of the Internal Revenue Code, which reduced our foreign-derived intangible income (FDII) tax benefits. This non-recurring adjustment has been excluded from the Company's non-GAAP tax rate and non-GAAP financial measures, as management believes exclusion of this item provides more meaningful period-to-period comparisons of ongoing operating performance.
| 
                         Harmonic Inc.  | 
                    ||||||||||||
| 
                         Preliminary Condensed Consolidated Balance Sheets  | 
                    ||||||||||||
| 
                         (Unaudited, in thousands, except par value)  | 
                    ||||||||||||
| 
                         | 
                    ||||||||||||
| 
                         | 
                      
                         | 
                      
                         September 26, 2025  | 
                      
                         | 
                      
                         December 31, 2024  | 
                    ||||||||
| 
                         ASSETS  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||
| 
                         Current assets:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||
| 
                         Cash and cash equivalents  | 
                      
                         | 
                      
                         $  | 
                      
                         127,376  | 
                      
                         | 
                      
                         $  | 
                      
                         101,457  | 
                    ||||||
| 
                         Accounts receivable, net of allowances for credit losses of $1,951 and $2,528 as of September 26, 2025 and December 31, 2024, respectively  | 
                      
                         | 
                      
                         | 
                      
                         104,542  | 
                      
                         | 
                      
                         | 
                      
                         178,013  | 
                    ||||||
| 
                         Inventories  | 
                      
                         | 
                      
                         | 
                      
                         68,604  | 
                      
                         | 
                      
                         | 
                      
                         64,004  | 
                    ||||||
| 
                         Prepaid expenses and other current assets  | 
                      
                         | 
                      
                         | 
                      
                         26,509  | 
                      
                         | 
                      
                         | 
                      
                         22,602  | 
                    ||||||
| 
                         Total current assets  | 
                      
                         | 
                      
                         | 
                      
                         327,031  | 
                      
                         | 
                      
                         | 
                      
                         366,076  | 
                    ||||||
| 
                         Property and equipment, net  | 
                      
                         | 
                      
                         | 
                      
                         27,768  | 
                      
                         | 
                      
                         | 
                      
                         26,823  | 
                    ||||||
| 
                         Operating lease right-of-use assets  | 
                      
                         | 
                      
                         | 
                      
                         12,148  | 
                      
                         | 
                      
                         | 
                      
                         12,411  | 
                    ||||||
| 
                         Goodwill  | 
                      
                         | 
                      
                         | 
                      
                         241,767  | 
                      
                         | 
                      
                         | 
                      
                         236,876  | 
                    ||||||
| 
                         Deferred income taxes, net  | 
                      
                         | 
                      
                         | 
                      
                         115,454  | 
                      
                         | 
                      
                         | 
                      
                         121,028  | 
                    ||||||
| 
                         Other non-current assets  | 
                      
                         | 
                      
                         | 
                      
                         34,427  | 
                      
                         | 
                      
                         | 
                      
                         33,292  | 
                    ||||||
| 
                         Total assets  | 
                      
                         | 
                      
                         $  | 
                      
                         758,595  | 
                      
                         | 
                      
                         $  | 
                      
                         796,506  | 
                    ||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||
| 
                         LIABILITIES AND STOCKHOLDERS' EQUITY  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||
| 
                         Current liabilities:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||
| 
                         Current portion of long-term debt  | 
                      
                         | 
                      
                         | 
                      
                         2,944  | 
                      
                         | 
                      
                         | 
                      
                         2,194  | 
                    ||||||
| 
                         Current portion of other borrowings  | 
                      
                         | 
                      
                         | 
                      
                         5,758  | 
                      
                         | 
                      
                         | 
                      
                         4,941  | 
                    ||||||
| 
                         Accounts payable  | 
                      
                         | 
                      
                         | 
                      
                         23,270  | 
                      
                         | 
                      
                         | 
                      
                         35,250  | 
                    ||||||
| 
                         Deferred revenue  | 
                      
                         | 
                      
                         | 
                      
                         49,522  | 
                      
                         | 
                      
                         | 
                      
                         47,069  | 
                    ||||||
| 
                         Operating lease liabilities  | 
                      
                         | 
                      
                         | 
                      
                         5,961  | 
                      
                         | 
                      
                         | 
                      
                         5,675  | 
                    ||||||
| 
                         Other current liabilities  | 
                      
                         | 
                      
                         | 
                      
                         69,647  | 
                      
                         | 
                      
                         | 
                      
                         72,440  | 
                    ||||||
| 
                         Total current liabilities  | 
                      
                         | 
                      
                         | 
                      
                         157,102  | 
                      
                         | 
                      
                         | 
                      
                         167,569  | 
                    ||||||
| 
                         Long-term debt  | 
                      
                         | 
                      
                         | 
                      
                         109,875  | 
                      
                         | 
                      
                         | 
                      
                         112,084  | 
                    ||||||
| 
                         Other borrowings  | 
                      
                         | 
                      
                         | 
                      
                         8,052  | 
                      
                         | 
                      
                         | 
                      
                         8,694  | 
                    ||||||
| 
                         Operating lease liabilities, non-current  | 
                      
                         | 
                      
                         | 
                      
                         13,972  | 
                      
                         | 
                      
                         | 
                      
                         14,727  | 
                    ||||||
| 
                         Other non-current liabilities  | 
                      
                         | 
                      
                         | 
                      
                         26,583  | 
                      
                         | 
                      
                         | 
                      
                         28,174  | 
                    ||||||
| 
                         Total liabilities  | 
                      
                         | 
                      
                         | 
                      
                         315,584  | 
                      
                         | 
                      
                         | 
                      
                         331,248  | 
                    ||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||
| 
                         Stockholders' equity:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||
| 
                         Preferred stock, $0.001 par value, 5,000 shares authorized; no shares issued or outstanding  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                    ||||||
| 
                         Common stock, $0.001 par value, 150,000 shares authorized; 112,215 and 116,735 shares issued and outstanding at September 26, 2025 and December 31, 2024, respectively  | 
                      
                         | 
                      
                         | 
                      
                         112  | 
                      
                         | 
                      
                         | 
                      
                         117  | 
                    ||||||
| 
                         Additional paid-in capital  | 
                      
                         | 
                      
                         | 
                      
                         2,458,285  | 
                      
                         | 
                      
                         | 
                      
                         2,432,733  | 
                    ||||||
| 
                         Accumulated deficit  | 
                      
                         | 
                      
                         | 
                      
                         (2,008,215)  | 
                      
                         | 
                      
                         | 
                      
                         (1,953,495)  | 
                    ||||||
| 
                         Accumulated other comprehensive loss  | 
                      
                         | 
                      
                         | 
                      
                         (7,171)  | 
                      
                         | 
                      
                         | 
                      
                         (14,097)  | 
                    ||||||
| 
                         Total stockholders' equity  | 
                      
                         | 
                      
                         | 
                      
                         443,011  | 
                      
                         | 
                      
                         | 
                      
                         465,258  | 
                    ||||||
| 
                         Total liabilities and stockholders' equity  | 
                      
                         | 
                      
                         $  | 
                      
                         758,595  | 
                      
                         | 
                      
                         $  | 
                      
                         796,506  | 
                    ||||||
| 
                         Harmonic Inc.  | 
                    ||||||||||||||||||||||
| 
                         Preliminary Condensed Consolidated Statements of Operations  | 
                    ||||||||||||||||||||||
| 
                         (Unaudited, in thousands, except per share data)  | 
                    ||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||
| 
                         | 
                      
                         Three Months Ended  | 
                      
                         | 
                      
                         Nine Months Ended  | 
                    |||||||||||||||||||
| 
                         | 
                      
                         September 26, 2025  | 
                      
                         | 
                      
                         September 27, 2024  | 
                      
                         | 
                      
                         September 26, 2025  | 
                      
                         | 
                      
                         September 27, 2024  | 
                    |||||||||||||||
| 
                         Revenue:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Appliance and integration  | 
                      
                         $  | 
                      
                         97,774  | 
                      
                         | 
                      
                         $  | 
                      
                         153,685  | 
                      
                         | 
                      
                         $  | 
                      
                         283,382  | 
                      
                         | 
                      
                         $  | 
                      
                         329,464  | 
                    |||||||||||
| 
                         SaaS and service  | 
                      
                         | 
                      
                         44,608  | 
                      
                         | 
                      
                         | 
                      
                         42,071  | 
                      
                         | 
                      
                         | 
                      
                         130,162  | 
                      
                         | 
                      
                         | 
                      
                         127,092  | 
                    |||||||||||
| 
                         Total net revenue  | 
                      
                         | 
                      
                         142,382  | 
                      
                         | 
                      
                         | 
                      
                         195,756  | 
                      
                         | 
                      
                         | 
                      
                         413,544  | 
                      
                         | 
                      
                         | 
                      
                         456,556  | 
                    |||||||||||
| 
                         Cost of revenue:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Appliance and integration  | 
                      
                         | 
                      
                         51,656  | 
                      
                         | 
                      
                         | 
                      
                         77,683  | 
                      
                         | 
                      
                         | 
                      
                         143,898  | 
                      
                         | 
                      
                         | 
                      
                         171,635  | 
                    |||||||||||
| 
                         SaaS and service  | 
                      
                         | 
                      
                         13,597  | 
                      
                         | 
                      
                         | 
                      
                         13,341  | 
                      
                         | 
                      
                         | 
                      
                         40,150  | 
                      
                         | 
                      
                         | 
                      
                         43,651  | 
                    |||||||||||
| 
                         Total cost of revenue  | 
                      
                         | 
                      
                         65,253  | 
                      
                         | 
                      
                         | 
                      
                         91,024  | 
                      
                         | 
                      
                         | 
                      
                         184,048  | 
                      
                         | 
                      
                         | 
                      
                         215,286  | 
                    |||||||||||
| 
                         Total gross profit  | 
                      
                         | 
                      
                         77,129  | 
                      
                         | 
                      
                         | 
                      
                         104,732  | 
                      
                         | 
                      
                         | 
                      
                         229,496  | 
                      
                         | 
                      
                         | 
                      
                         241,270  | 
                    |||||||||||
| 
                         Operating expenses:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Research and development  | 
                      
                         | 
                      
                         29,699  | 
                      
                         | 
                      
                         | 
                      
                         30,073  | 
                      
                         | 
                      
                         | 
                      
                         90,490  | 
                      
                         | 
                      
                         | 
                      
                         89,562  | 
                    |||||||||||
| 
                         Selling, general and administrative  | 
                      
                         | 
                      
                         36,524  | 
                      
                         | 
                      
                         | 
                      
                         35,851  | 
                      
                         | 
                      
                         | 
                      
                         111,816  | 
                      
                         | 
                      
                         | 
                      
                         114,537  | 
                    |||||||||||
| 
                         Asset impairment and related charges  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         3,103  | 
                      
                         | 
                      
                         | 
                      
                         1,637  | 
                      
                         | 
                      
                         | 
                      
                         12,103  | 
                    |||||||||||
| 
                         Restructuring and related charges  | 
                      
                         | 
                      
                         1,087  | 
                      
                         | 
                      
                         | 
                      
                         281  | 
                      
                         | 
                      
                         | 
                      
                         1,737  | 
                      
                         | 
                      
                         | 
                      
                         14,800  | 
                    |||||||||||
| 
                         Total operating expenses  | 
                      
                         | 
                      
                         67,310  | 
                      
                         | 
                      
                         | 
                      
                         69,308  | 
                      
                         | 
                      
                         | 
                      
                         205,680  | 
                      
                         | 
                      
                         | 
                      
                         231,002  | 
                    |||||||||||
| 
                         Income from operations  | 
                      
                         | 
                      
                         9,819  | 
                      
                         | 
                      
                         | 
                      
                         35,424  | 
                      
                         | 
                      
                         | 
                      
                         23,816  | 
                      
                         | 
                      
                         | 
                      
                         10,268  | 
                    |||||||||||
| 
                         Interest expense, net  | 
                      
                         | 
                      
                         (1,184)  | 
                      
                         | 
                      
                         | 
                      
                         (2,686)  | 
                      
                         | 
                      
                         | 
                      
                         (3,911)  | 
                      
                         | 
                      
                         | 
                      
                         (4,833)  | 
                    |||||||||||
| 
                         Other income (expense), net  | 
                      
                         | 
                      
                         113  | 
                      
                         | 
                      
                         | 
                      
                         (3,932)  | 
                      
                         | 
                      
                         | 
                      
                         300  | 
                      
                         | 
                      
                         | 
                      
                         (3,602)  | 
                    |||||||||||
| 
                         Income before income taxes  | 
                      
                         | 
                      
                         8,748  | 
                      
                         | 
                      
                         | 
                      
                         28,806  | 
                      
                         | 
                      
                         | 
                      
                         20,205  | 
                      
                         | 
                      
                         | 
                      
                         1,833  | 
                    |||||||||||
| 
                         Provision for income taxes  | 
                      
                         | 
                      
                         6,054  | 
                      
                         | 
                      
                         | 
                      
                         7,088  | 
                      
                         | 
                      
                         | 
                      
                         8,700  | 
                      
                         | 
                      
                         | 
                      
                         736  | 
                    |||||||||||
| 
                         Net income  | 
                      
                         $  | 
                      
                         2,694  | 
                      
                         | 
                      
                         $  | 
                      
                         21,718  | 
                      
                         | 
                      
                         $  | 
                      
                         11,505  | 
                      
                         | 
                      
                         $  | 
                      
                         1,097  | 
                    |||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Net income per share:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Basic  | 
                      
                         $  | 
                      
                         0.02  | 
                      
                         | 
                      
                         $  | 
                      
                         0.19  | 
                      
                         | 
                      
                         $  | 
                      
                         0.10  | 
                      
                         | 
                      
                         $  | 
                      
                         0.01  | 
                    |||||||||||
| 
                         Diluted  | 
                      
                         $  | 
                      
                         0.02  | 
                      
                         | 
                      
                         $  | 
                      
                         0.19  | 
                      
                         | 
                      
                         $  | 
                      
                         0.10  | 
                      
                         | 
                      
                         $  | 
                      
                         0.01  | 
                    |||||||||||
| 
                         Weighted average shares outstanding:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Basic  | 
                      
                         | 
                      
                         112,982  | 
                      
                         | 
                      
                         | 
                      
                         116,403  | 
                      
                         | 
                      
                         | 
                      
                         114,221  | 
                      
                         | 
                      
                         | 
                      
                         114,594  | 
                    |||||||||||
| 
                         Diluted  | 
                      
                         | 
                      
                         113,323  | 
                      
                         | 
                      
                         | 
                      
                         117,358  | 
                      
                         | 
                      
                         | 
                      
                         114,602  | 
                      
                         | 
                      
                         | 
                      
                         117,385  | 
                    |||||||||||
| 
                         Harmonic Inc.  | 
                    ||||||||||
| 
                         Preliminary Condensed Consolidated Statements of Cash Flows  | 
                    ||||||||||
| 
                         (Unaudited, in thousands)  | 
                    ||||||||||
| 
                         | 
                    ||||||||||
| 
                         | 
                      
                         Nine Months Ended  | 
                    |||||||||
| 
                         | 
                      
                         September 26, 2025  | 
                      
                         | 
                      
                         September 27, 2024  | 
                    |||||||
| 
                         Cash flows from operating activities:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Net income  | 
                      
                         $  | 
                      
                         11,505  | 
                      
                         | 
                      
                         $  | 
                      
                         1,097  | 
                    |||||
| 
                         Adjustments to reconcile net income to net cash provided by operating activities:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Depreciation  | 
                      
                         | 
                      
                         8,215  | 
                      
                         | 
                      
                         | 
                      
                         9,171  | 
                    |||||
| 
                         Asset impairment and related charges  | 
                      
                         | 
                      
                         1,637  | 
                      
                         | 
                      
                         | 
                      
                         12,103  | 
                    |||||
| 
                         Stock-based compensation  | 
                      
                         | 
                      
                         23,486  | 
                      
                         | 
                      
                         | 
                      
                         19,587  | 
                    |||||
| 
                         Foreign currency remeasurement  | 
                      
                         | 
                      
                         446  | 
                      
                         | 
                      
                         | 
                      
                         6,513  | 
                    |||||
| 
                         Deferred income taxes, net  | 
                      
                         | 
                      
                         (3,120)  | 
                      
                         | 
                      
                         | 
                      
                         (2,673)  | 
                    |||||
| 
                         Provision for excess and obsolete inventories  | 
                      
                         | 
                      
                         2,789  | 
                      
                         | 
                      
                         | 
                      
                         3,135  | 
                    |||||
| 
                         Other  | 
                      
                         | 
                      
                         61  | 
                      
                         | 
                      
                         | 
                      
                         435  | 
                    |||||
| 
                         Changes in operating assets and liabilities:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Accounts receivable, net  | 
                      
                         | 
                      
                         74,121  | 
                      
                         | 
                      
                         | 
                      
                         (31,611)  | 
                    |||||
| 
                         Inventories  | 
                      
                         | 
                      
                         (3,944)  | 
                      
                         | 
                      
                         | 
                      
                         6,592  | 
                    |||||
| 
                         Prepaid expenses and other assets  | 
                      
                         | 
                      
                         10,359  | 
                      
                         | 
                      
                         | 
                      
                         (3,489)  | 
                    |||||
| 
                         Accounts payable  | 
                      
                         | 
                      
                         (13,785)  | 
                      
                         | 
                      
                         | 
                      
                         1,787  | 
                    |||||
| 
                         Deferred revenues  | 
                      
                         | 
                      
                         1,173  | 
                      
                         | 
                      
                         | 
                      
                         2,062  | 
                    |||||
| 
                         Other liabilities  | 
                      
                         | 
                      
                         (17,265)  | 
                      
                         | 
                      
                         | 
                      
                         (11,323)  | 
                    |||||
| 
                         Net cash provided by operating activities  | 
                      
                         | 
                      
                         95,678  | 
                      
                         | 
                      
                         | 
                      
                         13,386  | 
                    |||||
| 
                         Cash flows from investing activities:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Purchases of property and equipment  | 
                      
                         | 
                      
                         (8,404)  | 
                      
                         | 
                      
                         | 
                      
                         (6,840)  | 
                    |||||
| 
                         Net cash used in investing activities  | 
                      
                         | 
                      
                         (8,404)  | 
                      
                         | 
                      
                         | 
                      
                         (6,840)  | 
                    |||||
| 
                         Cash flows from financing activities:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Proceeds from long-term debt  | 
                      
                         | 
                      
                         95,000  | 
                      
                         | 
                      
                         | 
                      
                         115,000  | 
                    |||||
| 
                         Repayment of convertible debt  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (115,500)  | 
                    |||||
| 
                         Repayment of long-term debt and other borrowings  | 
                      
                         | 
                      
                         (101,897)  | 
                      
                         | 
                      
                         | 
                      
                         (4,797)  | 
                    |||||
| 
                         Payments for debt issuance costs  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (332)  | 
                    |||||
| 
                         Repurchase of common stock  | 
                      
                         | 
                      
                         (65,757)  | 
                      
                         | 
                      
                         | 
                      
                         (30,047)  | 
                    |||||
| 
                         Proceeds from other borrowings  | 
                      
                         | 
                      
                         3,835  | 
                      
                         | 
                      
                         | 
                      
                         3,943  | 
                    |||||
| 
                         Proceeds from common stock issued to employees  | 
                      
                         | 
                      
                         5,983  | 
                      
                         | 
                      
                         | 
                      
                         6,628  | 
                    |||||
| 
                         Taxes paid related to net share settlement of equity awards  | 
                      
                         | 
                      
                         (3,795)  | 
                      
                         | 
                      
                         | 
                      
                         (6,877)  | 
                    |||||
| 
                         Net cash used in financing activities  | 
                      
                         | 
                      
                         (66,631)  | 
                      
                         | 
                      
                         | 
                      
                         (31,982)  | 
                    |||||
| 
                         Effect of exchange rate changes on cash and cash equivalents and restricted cash  | 
                      
                         | 
                      
                         5,283  | 
                      
                         | 
                      
                         | 
                      
                         (332)  | 
                    |||||
| 
                         Net increase (decrease) in cash and cash equivalents and restricted cash  | 
                      
                         | 
                      
                         25,926  | 
                      
                         | 
                      
                         | 
                      
                         (25,768)  | 
                    |||||
| 
                         Cash and cash equivalents and restricted cash at beginning of period  | 
                      
                         | 
                      
                         101,789  | 
                      
                         | 
                      
                         | 
                      
                         84,269  | 
                    |||||
| 
                         Cash and cash equivalents and restricted cash at end of period  | 
                      
                         $  | 
                      
                         127,715  | 
                      
                         | 
                      
                         $  | 
                      
                         58,501  | 
                    |||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Cash and cash equivalents and restricted cash at end of period  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Cash and cash equivalents  | 
                      
                         $  | 
                      
                         127,376  | 
                      
                         | 
                      
                         $  | 
                      
                         58,174  | 
                    |||||
| 
                         Restricted cash included in other current assets  | 
                      
                         | 
                      
                         339  | 
                      
                         | 
                      
                         | 
                      
                         327  | 
                    |||||
| 
                         Total cash, cash equivalents and restricted cash as shown in the condensed consolidated statement of cash flows  | 
                      
                         $  | 
                      
                         127,715  | 
                      
                         | 
                      
                         $  | 
                      
                         58,501  | 
                    |||||
| 
                         Harmonic Inc.  | 
                    ||||||||||
| 
                         Preliminary Condensed Consolidated Statements of Cash Flows  | 
                    ||||||||||
| 
                         (Unaudited, in thousands)  | 
                    ||||||||||
| 
                         | 
                    ||||||||||
| 
                         | 
                      
                         Nine Months Ended  | 
                    |||||||||
| 
                         | 
                      
                         September 26, 2025  | 
                      
                         | 
                      
                         September 27, 2024  | 
                    |||||||
| 
                         Supplemental cash flow disclosure:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Income tax payments, net  | 
                      
                         $  | 
                      
                         14,496  | 
                      
                         | 
                      
                         $  | 
                      
                         12,894  | 
                    |||||
| 
                         Interest payments, net  | 
                      
                         $  | 
                      
                         2,897  | 
                      
                         | 
                      
                         $  | 
                      
                         4,363  | 
                    |||||
| 
                         Supplemental schedule of non-cash investing activities:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Capital expenditures incurred but not yet paid  | 
                      
                         $  | 
                      
                         968  | 
                      
                         | 
                      
                         $  | 
                      
                         709  | 
                    |||||
| 
                         Supplemental schedule of non-cash financing activities:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Shares of common stock issued upon redemption of the 2024 Notes  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         4,578  | 
                    |||||
| 
                         Harmonic Inc.  | 
                    ||||||||||||||||||||||
| 
                         Preliminary GAAP Revenue Information  | 
                    ||||||||||||||||||||||
| 
                         (Unaudited, in thousands, except percentages)  | 
                    ||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||
| 
                         | 
                      
                         Three Months Ended  | 
                    |||||||||||||||||||||
| 
                         | 
                      
                         September 26, 2025  | 
                      
                         | 
                      
                         June 27, 2025  | 
                      
                         | 
                      
                         September 27, 2024  | 
                    |||||||||||||||||
| 
                         Geography  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Americas  | 
                      
                         $  | 
                      
                         112,819  | 
                      
                         79 %  | 
                      
                         | 
                      
                         $  | 
                      
                         108,205  | 
                      
                         79 %  | 
                      
                         | 
                      
                         $  | 
                      
                         167,720  | 
                      
                         86 %  | 
                    |||||||||||
| 
                         EMEA  | 
                      
                         | 
                      
                         23,433  | 
                      
                         16 %  | 
                      
                         | 
                      
                         | 
                      
                         19,888  | 
                      
                         14 %  | 
                      
                         | 
                      
                         | 
                      
                         20,269  | 
                      
                         10 %  | 
                    |||||||||||
| 
                         APAC  | 
                      
                         | 
                      
                         6,130  | 
                      
                         5 %  | 
                      
                         | 
                      
                         | 
                      
                         9,934  | 
                      
                         7 %  | 
                      
                         | 
                      
                         | 
                      
                         7,767  | 
                      
                         4 %  | 
                    |||||||||||
| 
                         Total  | 
                      
                         $  | 
                      
                         142,382  | 
                      
                         100 %  | 
                      
                         | 
                      
                         $  | 
                      
                         138,027  | 
                      
                         100 %  | 
                      
                         | 
                      
                         $  | 
                      
                         195,756  | 
                      
                         100 %  | 
                    |||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Market  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Service Provider  | 
                      
                         $  | 
                      
                         96,863  | 
                      
                         68 %  | 
                      
                         | 
                      
                         $  | 
                      
                         94,851  | 
                      
                         69 %  | 
                      
                         | 
                      
                         $  | 
                      
                         159,993  | 
                      
                         82 %  | 
                    |||||||||||
| 
                         Broadcast and Media  | 
                      
                         | 
                      
                         45,519  | 
                      
                         32 %  | 
                      
                         | 
                      
                         | 
                      
                         43,176  | 
                      
                         31 %  | 
                      
                         | 
                      
                         | 
                      
                         35,763  | 
                      
                         18 %  | 
                    |||||||||||
| 
                         Total  | 
                      
                         $  | 
                      
                         142,382  | 
                      
                         100 %  | 
                      
                         | 
                      
                         $  | 
                      
                         138,027  | 
                      
                         100 %  | 
                      
                         | 
                      
                         $  | 
                      
                         195,756  | 
                      
                         100 %  | 
                    |||||||||||
| 
                         | 
                    ||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         Nine Months Ended  | 
                    |||||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         September 26, 2025  | 
                      
                         | 
                      
                         September 27, 2024  | 
                    |||||||||||||||
| 
                         Geography  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Americas  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         322,705  | 
                      
                         78 %  | 
                      
                         | 
                      
                         $  | 
                      
                         370,348  | 
                      
                         81 %  | 
                    |||||||||||
| 
                         EMEA  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         66,493  | 
                      
                         16 %  | 
                      
                         | 
                      
                         | 
                      
                         66,509  | 
                      
                         15 %  | 
                    |||||||||||
| 
                         APAC  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         24,346  | 
                      
                         6 %  | 
                      
                         | 
                      
                         | 
                      
                         19,699  | 
                      
                         4 %  | 
                    |||||||||||
| 
                         Total  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         413,544  | 
                      
                         100 %  | 
                      
                         | 
                      
                         $  | 
                      
                         456,556  | 
                      
                         100 %  | 
                    |||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Market  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||
| 
                         Service Provider  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         285,916  | 
                      
                         69 %  | 
                      
                         | 
                      
                         $  | 
                      
                         351,115  | 
                      
                         77 %  | 
                    |||||||||||
| 
                         Broadcast and Media  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         127,628  | 
                      
                         31 %  | 
                      
                         | 
                      
                         | 
                      
                         105,441  | 
                      
                         23 %  | 
                    |||||||||||
| 
                         Total  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         413,544  | 
                      
                         100 %  | 
                      
                         | 
                      
                         $  | 
                      
                         456,556  | 
                      
                         100 %  | 
                    |||||||||||
| 
                         Harmonic Inc.  | 
                    ||||||||||||||||||||||||||||
| 
                         Preliminary Segment Information  | 
                    ||||||||||||||||||||||||||||
| 
                         (Unaudited, in thousands, except percentages)  | 
                    ||||||||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||||||||
| 
                         | 
                      
                         Three Months Ended September 26, 2025  | 
                    |||||||||||||||||||||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                      
                         | 
                      
                         
                          
                            Total  | 
                      
                         | 
                      
                         Adjustments (1)  | 
                      
                         | 
                      
                         
                          
                            Consolidated  | 
                    |||||||||||||||||||
| 
                         Net revenue  | 
                      
                         $  | 
                      
                         90,492  | 
                      
                         | 
                      
                         $  | 
                      
                         51,890  | 
                      
                         | 
                      
                         $  | 
                      
                         142,382  | 
                      
                         | 
                      
                         $  | 
                      
                         —  | 
                      
                         | 
                      
                         $  | 
                      
                         142,382  | 
                    ||||||||||||||
| 
                         Gross profit  | 
                      
                         | 
                      
                         42,765  | 
                      
                         (1)  | 
                      
                         | 
                      
                         34,624  | 
                      
                         (1)  | 
                      
                         | 
                      
                         77,389  | 
                      
                         (1)  | 
                      
                         | 
                      
                         (260)  | 
                      
                         | 
                      
                         | 
                      
                         77,129  | 
                    ||||||||||||||
| 
                         Gross margin %  | 
                      
                         | 
                      
                         47.3 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         66.7 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         54.4 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         54.2 %  | 
                    ||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||||||||||
| 
                         | 
                      
                         Three Months Ended June 27, 2025  | 
                    |||||||||||||||||||||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                      
                         | 
                      
                         
                          
                            Total  | 
                      
                         | 
                      
                         Adjustments (1)  | 
                      
                         | 
                      
                         
                          
                            Consolidated  | 
                    |||||||||||||||||||
| 
                         Net revenue  | 
                      
                         $  | 
                      
                         86,918  | 
                      
                         | 
                      
                         $  | 
                      
                         51,109  | 
                      
                         | 
                      
                         $  | 
                      
                         138,027  | 
                      
                         | 
                      
                         $  | 
                      
                         —  | 
                      
                         | 
                      
                         $  | 
                      
                         138,027  | 
                    ||||||||||||||
| 
                         Gross profit  | 
                      
                         | 
                      
                         40,412  | 
                      
                         (1)  | 
                      
                         | 
                      
                         34,249  | 
                      
                         (1)  | 
                      
                         | 
                      
                         74,661  | 
                      
                         (1)  | 
                      
                         | 
                      
                         (868)  | 
                      
                         | 
                      
                         | 
                      
                         73,793  | 
                    ||||||||||||||
| 
                         Gross margin %  | 
                      
                         | 
                      
                         46.5 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         67.0 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         54.1 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         53.5 %  | 
                    ||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||||||||||
| 
                         | 
                      
                         Three Months Ended September 27, 2024  | 
                    |||||||||||||||||||||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                      
                         | 
                      
                         
                          
                            Total  | 
                      
                         | 
                      
                         Adjustments (1)  | 
                      
                         | 
                      
                         
                          
                            Consolidated  | 
                    |||||||||||||||||||
| 
                         Net revenue  | 
                      
                         $  | 
                      
                         145,338  | 
                      
                         | 
                      
                         $  | 
                      
                         50,418  | 
                      
                         | 
                      
                         $  | 
                      
                         195,756  | 
                      
                         | 
                      
                         $  | 
                      
                         —  | 
                      
                         | 
                      
                         $  | 
                      
                         195,756  | 
                    ||||||||||||||
| 
                         Gross profit  | 
                      
                         | 
                      
                         70,256  | 
                      
                         (1)  | 
                      
                         | 
                      
                         34,770  | 
                      
                         (1)  | 
                      
                         | 
                      
                         105,026  | 
                      
                         (1)  | 
                      
                         | 
                      
                         (294)  | 
                      
                         | 
                      
                         | 
                      
                         104,732  | 
                    ||||||||||||||
| 
                         Gross margin %  | 
                      
                         | 
                      
                         48.3 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         69.0 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         53.7 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         53.5 %  | 
                    ||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||||||||||
| 
                         | 
                      
                         Nine Months Ended September 26, 2025  | 
                    |||||||||||||||||||||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                      
                         | 
                      
                         
                          
                            Total  | 
                      
                         | 
                      
                         Adjustments (1)  | 
                      
                         | 
                      
                         
                          
                            Consolidated  | 
                    |||||||||||||||||||
| 
                         Net revenue  | 
                      
                         $  | 
                      
                         262,288  | 
                      
                         | 
                      
                         $  | 
                      
                         151,256  | 
                      
                         | 
                      
                         $  | 
                      
                         413,544  | 
                      
                         | 
                      
                         $  | 
                      
                         —  | 
                      
                         | 
                      
                         $  | 
                      
                         413,544  | 
                    ||||||||||||||
| 
                         Gross profit  | 
                      
                         | 
                      
                         130,257  | 
                      
                         (1)  | 
                      
                         | 
                      
                         100,928  | 
                      
                         (1)  | 
                      
                         | 
                      
                         231,185  | 
                      
                         (1)  | 
                      
                         | 
                      
                         (1,689)  | 
                      
                         | 
                      
                         | 
                      
                         229,496  | 
                    ||||||||||||||
| 
                         Gross margin %  | 
                      
                         | 
                      
                         49.7 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         66.7 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         55.9 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         55.5 %  | 
                    ||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||||||||||
| 
                         | 
                      
                         Nine Months Ended September 27, 2024  | 
                    |||||||||||||||||||||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                      
                         | 
                      
                         
                          
                            Total  | 
                      
                         | 
                      
                         Adjustments (1)  | 
                      
                         | 
                      
                         
                          
                            Consolidated  | 
                    |||||||||||||||||||
| 
                         Net revenue  | 
                      
                         $  | 
                      
                         317,172  | 
                      
                         | 
                      
                         $  | 
                      
                         139,384  | 
                      
                         | 
                      
                         $  | 
                      
                         456,556  | 
                      
                         | 
                      
                         $  | 
                      
                         —  | 
                      
                         | 
                      
                         $  | 
                      
                         456,556  | 
                    ||||||||||||||
| 
                         Gross profit  | 
                      
                         | 
                      
                         151,986  | 
                      
                         (1)  | 
                      
                         | 
                      
                         90,833  | 
                      
                         (1)  | 
                      
                         | 
                      
                         242,819  | 
                      
                         (1)  | 
                      
                         | 
                      
                         (1,549)  | 
                      
                         | 
                      
                         | 
                      
                         241,270  | 
                    ||||||||||||||
| 
                         Gross margin %  | 
                      
                         | 
                      
                         47.9 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         65.2 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         53.2 %  | 
                      
                         (1)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         52.8 %  | 
                    ||||||||||||||
| 
                         | 
                    
| 
                         (1) Segment gross margin and segment gross profit are Non-GAAP financial measures. Refer to "Use of Non-GAAP Financial Measures" above and "GAAP to Non-GAAP Reconciliations" below.  | 
                    
| 
                         Harmonic Inc.  | 
                    ||||||||||||||||||||||||||||||||||
| 
                         GAAP to Non-GAAP Reconciliations (Unaudited)  | 
                    ||||||||||||||||||||||||||||||||||
| 
                         (in thousands, except percentages and per share data)  | 
                    ||||||||||||||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Three Months Ended September 26, 2025  | 
                    |||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Revenue  | 
                      
                         | 
                      
                         
                          
                            Gross  | 
                      
                         | 
                      
                         
                          
                            Total   | 
                      
                         | 
                      
                         
                          
                            Income from  | 
                      
                         | 
                      
                         
                          
                            Total   | 
                      
                         | 
                      
                         Net Income  | 
                    |||||||||||||||||||||||
| 
                         GAAP  | 
                      
                         $  | 
                      
                         142,382  | 
                      
                         | 
                      
                         $  | 
                      
                         77,129  | 
                      
                         | 
                      
                         $  | 
                      
                         67,310  | 
                      
                         | 
                      
                         $  | 
                      
                         9,819  | 
                      
                         | 
                      
                         $  | 
                      
                         (1,071)  | 
                      
                         | 
                      
                         $  | 
                      
                         2,694  | 
                    |||||||||||||||||
| 
                         Stock-based compensation  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         260  | 
                      
                         | 
                      
                         | 
                      
                         (7,064)  | 
                      
                         | 
                      
                         | 
                      
                         7,324  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         7,324  | 
                    |||||||||||||||||
| 
                         Restructuring and related charges  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (1,087)  | 
                      
                         | 
                      
                         | 
                      
                         1,087  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         1,087  | 
                    |||||||||||||||||
| 
                         Non-recurring advisory fees  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (749)  | 
                      
                         | 
                      
                         | 
                      
                         749  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         749  | 
                    |||||||||||||||||
| 
                         Discrete tax items and tax effect of Non-GAAP adjustments  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         2,293  | 
                    |||||||||||||||||
| 
                         Total adjustments  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         260  | 
                      
                         | 
                      
                         | 
                      
                         (8,900)  | 
                      
                         | 
                      
                         | 
                      
                         9,160  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         11,453  | 
                    |||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         $  | 
                      
                         142,382  | 
                      
                         | 
                      
                         $  | 
                      
                         77,389  | 
                      
                         | 
                      
                         $  | 
                      
                         58,410  | 
                      
                         | 
                      
                         $  | 
                      
                         18,979  | 
                      
                         | 
                      
                         $  | 
                      
                         (1,071)  | 
                      
                         | 
                      
                         $  | 
                      
                         14,147  | 
                    |||||||||||||||||
| 
                         As a % of revenue (GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         54.2 %  | 
                      
                         | 
                      
                         | 
                      
                         47.3 %  | 
                      
                         | 
                      
                         | 
                      
                         6.9 %  | 
                      
                         | 
                      
                         | 
                      
                         (0.8) %  | 
                      
                         | 
                      
                         | 
                      
                         1.9 %  | 
                    |||||||||||||||||
| 
                         As a % of revenue (Non-GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         54.4 %  | 
                      
                         | 
                      
                         | 
                      
                         41.0 %  | 
                      
                         | 
                      
                         | 
                      
                         13.3 %  | 
                      
                         | 
                      
                         | 
                      
                         (0.8) %  | 
                      
                         | 
                      
                         | 
                      
                         9.9 %  | 
                    |||||||||||||||||
| 
                         Diluted net income per share:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.02  | 
                    |||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.12  | 
                    |||||||||||||||||
| 
                         Shares used in per share calculation:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         GAAP and Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         113,323  | 
                    |||||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         | 
                      
                         Three Months Ended June 27, 2025  | 
                    |||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Revenue  | 
                      
                         | 
                      
                         
                          
                            Gross  | 
                      
                         | 
                      
                         
                          
                            Total   | 
                      
                         | 
                      
                         
                          
                            Income from  | 
                      
                         | 
                      
                         
                          
                            Total  | 
                      
                         | 
                      
                         Net Income  | 
                    |||||||||||||||||||||||
| 
                         GAAP  | 
                      
                         $  | 
                      
                         138,027  | 
                      
                         | 
                      
                         $  | 
                      
                         73,793  | 
                      
                         | 
                      
                         $  | 
                      
                         69,923  | 
                      
                         | 
                      
                         $  | 
                      
                         3,870  | 
                      
                         | 
                      
                         $  | 
                      
                         (894)  | 
                      
                         | 
                      
                         $  | 
                      
                         2,871  | 
                    |||||||||||||||||
| 
                         Stock-based compensation  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         868  | 
                      
                         | 
                      
                         | 
                      
                         (6,829)  | 
                      
                         | 
                      
                         | 
                      
                         7,697  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         7,697  | 
                    |||||||||||||||||
| 
                         Restructuring and related charges  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (650)  | 
                      
                         | 
                      
                         | 
                      
                         650  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         650  | 
                    |||||||||||||||||
| 
                         Non-recurring advisory fees  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (78)  | 
                      
                         | 
                      
                         | 
                      
                         78  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         78  | 
                    |||||||||||||||||
| 
                         Lease-related asset impairment and other charges (1)  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (1,637)  | 
                      
                         | 
                      
                         | 
                      
                         1,637  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         1,637  | 
                    |||||||||||||||||
| 
                         Discrete tax items and tax effect of Non-GAAP adjustments  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (2,633)  | 
                    |||||||||||||||||
| 
                         Total adjustments  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         868  | 
                      
                         | 
                      
                         | 
                      
                         (9,194)  | 
                      
                         | 
                      
                         | 
                      
                         10,062  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         7,429  | 
                    |||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         $  | 
                      
                         138,027  | 
                      
                         | 
                      
                         $  | 
                      
                         74,661  | 
                      
                         | 
                      
                         $  | 
                      
                         60,729  | 
                      
                         | 
                      
                         $  | 
                      
                         13,932  | 
                      
                         | 
                      
                         $  | 
                      
                         (894)  | 
                      
                         | 
                      
                         $  | 
                      
                         10,300  | 
                    |||||||||||||||||
| 
                         As a % of revenue (GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         53.5 %  | 
                      
                         | 
                      
                         | 
                      
                         50.7 %  | 
                      
                         | 
                      
                         | 
                      
                         2.8 %  | 
                      
                         | 
                      
                         | 
                      
                         (0.6) %  | 
                      
                         | 
                      
                         | 
                      
                         2.1 %  | 
                    |||||||||||||||||
| 
                         As a % of revenue (Non-GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         54.1 %  | 
                      
                         | 
                      
                         | 
                      
                         44.0 %  | 
                      
                         | 
                      
                         | 
                      
                         10.1 %  | 
                      
                         | 
                      
                         | 
                      
                         (0.6) %  | 
                      
                         | 
                      
                         | 
                      
                         7.5 %  | 
                    |||||||||||||||||
| 
                         Diluted net income per share:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.03  | 
                    |||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.09  | 
                    |||||||||||||||||
| 
                         Shares used in per share calculation:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         GAAP and Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         113,493  | 
                    |||||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         (1) Includes impairment charges of $0.4 million for right-of-use assets, $0.3 million for leasehold improvements, and $0.9 million related to the fair value of other unrecoverable facility costs.  | 
                    ||||||||||||||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Three Months Ended September 27, 2024  | 
                    |||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Revenue  | 
                      
                         | 
                      
                         
                          
                            Gross  | 
                      
                         | 
                      
                         
                          
                            Total   | 
                      
                         | 
                      
                         
                          
                            Income from  | 
                      
                         | 
                      
                         
                          
                            Total  | 
                      
                         | 
                      
                         Net Income  | 
                    |||||||||||||||||||||||
| 
                         GAAP  | 
                      
                         $  | 
                      
                         195,756  | 
                      
                         | 
                      
                         $  | 
                      
                         104,732  | 
                      
                         | 
                      
                         $  | 
                      
                         69,308  | 
                      
                         | 
                      
                         $  | 
                      
                         35,424  | 
                      
                         | 
                      
                         $  | 
                      
                         (6,618)  | 
                      
                         | 
                      
                         $  | 
                      
                         21,718  | 
                    |||||||||||||||||
| 
                         Stock-based compensation  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         294  | 
                      
                         | 
                      
                         | 
                      
                         (5,416)  | 
                      
                         | 
                      
                         | 
                      
                         5,710  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         5,710  | 
                    |||||||||||||||||
| 
                         Restructuring and related charges  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (281)  | 
                      
                         | 
                      
                         | 
                      
                         281  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         281  | 
                    |||||||||||||||||
| 
                         Asset impairment and related charges (1)  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (3,103)  | 
                      
                         | 
                      
                         | 
                      
                         3,103  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         3,103  | 
                    |||||||||||||||||
| 
                         Discrete tax items and tax effect of Non-GAAP adjustments  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (871)  | 
                    |||||||||||||||||
| 
                         Total adjustments  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         294  | 
                      
                         | 
                      
                         | 
                      
                         (8,800)  | 
                      
                         | 
                      
                         | 
                      
                         9,094  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         8,223  | 
                    |||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         $  | 
                      
                         195,756  | 
                      
                         | 
                      
                         $  | 
                      
                         105,026  | 
                      
                         | 
                      
                         $  | 
                      
                         60,508  | 
                      
                         | 
                      
                         $  | 
                      
                         44,518  | 
                      
                         | 
                      
                         $  | 
                      
                         (6,618)  | 
                      
                         | 
                      
                         $  | 
                      
                         29,941  | 
                    |||||||||||||||||
| 
                         As a % of revenue (GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         53.5 %  | 
                      
                         | 
                      
                         | 
                      
                         35.4 %  | 
                      
                         | 
                      
                         | 
                      
                         18.1 %  | 
                      
                         | 
                      
                         | 
                      
                         (3.4) %  | 
                      
                         | 
                      
                         | 
                      
                         11.1 %  | 
                    |||||||||||||||||
| 
                         As a % of revenue (Non-GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         53.7 %  | 
                      
                         | 
                      
                         | 
                      
                         30.9 %  | 
                      
                         | 
                      
                         | 
                      
                         22.7 %  | 
                      
                         | 
                      
                         | 
                      
                         (3.4) %  | 
                      
                         | 
                      
                         | 
                      
                         15.3 %  | 
                    |||||||||||||||||
| 
                         Diluted net income per share:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.19  | 
                    |||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.26  | 
                    |||||||||||||||||
| 
                         Shares used in per share calculation:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         GAAP and Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         117,358  | 
                    |||||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         (1) Includes write-off of $1.8 million for internally developed capitalized software, impairment charges of $0.8 million for right-of-use assets, $0.1 million for leasehold improvements, and $0.4 million related to the fair value of other unrecoverable facility costs.  | 
                    ||||||||||||||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Nine Months Ended September 26, 2025  | 
                    |||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Revenue  | 
                      
                         | 
                      
                         
                          
                            Gross  | 
                      
                         | 
                      
                         
                          
                            Total   | 
                      
                         | 
                      
                         
                          
                            Income from  | 
                      
                         | 
                      
                         
                          
                            Total  | 
                      
                         | 
                      
                         Net Income  | 
                    |||||||||||||||||||||||
| 
                         GAAP  | 
                      
                         $  | 
                      
                         413,544  | 
                      
                         | 
                      
                         $  | 
                      
                         229,496  | 
                      
                         | 
                      
                         $  | 
                      
                         205,680  | 
                      
                         | 
                      
                         $  | 
                      
                         23,816  | 
                      
                         | 
                      
                         $  | 
                      
                         (3,611)  | 
                      
                         | 
                      
                         $  | 
                      
                         11,505  | 
                    |||||||||||||||||
| 
                         Stock-based compensation  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         1,689  | 
                      
                         | 
                      
                         | 
                      
                         (21,797)  | 
                      
                         | 
                      
                         | 
                      
                         23,486  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         23,486  | 
                    |||||||||||||||||
| 
                         Restructuring and related charges  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (1,737)  | 
                      
                         | 
                      
                         | 
                      
                         1,737  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         1,737  | 
                    |||||||||||||||||
| 
                         Non-recurring advisory fees  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (827)  | 
                      
                         | 
                      
                         | 
                      
                         827  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         827  | 
                    |||||||||||||||||
| 
                         Lease-related asset impairment and other charges (1)  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (1,637)  | 
                      
                         | 
                      
                         | 
                      
                         1,637  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         1,637  | 
                    |||||||||||||||||
| 
                         Discrete tax items and tax effect of non-GAAP adjustments  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (1,357)  | 
                    |||||||||||||||||
| 
                         Total adjustments  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         1,689  | 
                      
                         | 
                      
                         | 
                      
                         (25,998)  | 
                      
                         | 
                      
                         | 
                      
                         27,687  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         26,330  | 
                    |||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         $  | 
                      
                         413,544  | 
                      
                         | 
                      
                         $  | 
                      
                         231,185  | 
                      
                         | 
                      
                         $  | 
                      
                         179,682  | 
                      
                         | 
                      
                         $  | 
                      
                         51,503  | 
                      
                         | 
                      
                         $  | 
                      
                         (3,611)  | 
                      
                         | 
                      
                         $  | 
                      
                         37,835  | 
                    |||||||||||||||||
| 
                         As a % of revenue (GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         55.5 %  | 
                      
                         | 
                      
                         | 
                      
                         49.7 %  | 
                      
                         | 
                      
                         | 
                      
                         5.8 %  | 
                      
                         | 
                      
                         | 
                      
                         (0.9) %  | 
                      
                         | 
                      
                         | 
                      
                         2.8 %  | 
                    |||||||||||||||||
| 
                         As a % of revenue (Non-GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         55.9 %  | 
                      
                         | 
                      
                         | 
                      
                         43.4 %  | 
                      
                         | 
                      
                         | 
                      
                         12.5 %  | 
                      
                         | 
                      
                         | 
                      
                         (0.9) %  | 
                      
                         | 
                      
                         | 
                      
                         9.1 %  | 
                    |||||||||||||||||
| 
                         Diluted net income per share:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.10  | 
                    |||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.33  | 
                    |||||||||||||||||
| 
                         Shares used in per share calculation:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         GAAP and Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         114,602  | 
                    |||||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         (1) Includes impairment charges of $0.4 million for right-of-use assets, $0.3 million for leasehold improvements, and $0.9 million related to the fair value of other unrecoverable facility costs.  | 
                    ||||||||||||||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Nine Months Ended September 27, 2024  | 
                    |||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Revenue  | 
                      
                         | 
                      
                         
                          
                            Gross  | 
                      
                         | 
                      
                         
                          
                            Total   | 
                      
                         | 
                      
                         
                          
                            Income from  | 
                      
                         | 
                      
                         
                          
                            Total  | 
                      
                         | 
                      
                         Net Income  | 
                    |||||||||||||||||||||||
| 
                         GAAP  | 
                      
                         $  | 
                      
                         456,556  | 
                      
                         | 
                      
                         $  | 
                      
                         241,270  | 
                      
                         | 
                      
                         $  | 
                      
                         231,002  | 
                      
                         | 
                      
                         $  | 
                      
                         10,268  | 
                      
                         | 
                      
                         $  | 
                      
                         (8,435)  | 
                      
                         | 
                      
                         $  | 
                      
                         1,097  | 
                    |||||||||||||||||
| 
                         Stock-based compensation  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         1,089  | 
                      
                         | 
                      
                         | 
                      
                         (18,498)  | 
                      
                         | 
                      
                         | 
                      
                         19,587  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         19,587  | 
                    |||||||||||||||||
| 
                         Restructuring and related charges  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         460  | 
                      
                         | 
                      
                         | 
                      
                         (14,800)  | 
                      
                         | 
                      
                         | 
                      
                         15,260  | 
                      
                         | 
                      
                         | 
                      
                         11  | 
                      
                         | 
                      
                         | 
                      
                         15,271  | 
                    |||||||||||||||||
| 
                         Non-recurring advisory fees  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (755)  | 
                      
                         | 
                      
                         | 
                      
                         755  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         755  | 
                    |||||||||||||||||
| 
                         Asset impairment and related charges (1)  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (12,103)  | 
                      
                         | 
                      
                         | 
                      
                         12,103  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         12,103  | 
                    |||||||||||||||||
| 
                         Non-cash interest expense related to convertible notes  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         567  | 
                      
                         | 
                      
                         | 
                      
                         567  | 
                    |||||||||||||||||
| 
                         Discrete tax items and tax effect of non-GAAP adjustments  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         (9,778)  | 
                    |||||||||||||||||
| 
                         Total adjustments  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         1,549  | 
                      
                         | 
                      
                         | 
                      
                         (46,156)  | 
                      
                         | 
                      
                         | 
                      
                         47,705  | 
                      
                         | 
                      
                         | 
                      
                         578  | 
                      
                         | 
                      
                         | 
                      
                         38,505  | 
                    |||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         $  | 
                      
                         456,556  | 
                      
                         | 
                      
                         $  | 
                      
                         242,819  | 
                      
                         | 
                      
                         $  | 
                      
                         184,846  | 
                      
                         | 
                      
                         $  | 
                      
                         57,973  | 
                      
                         | 
                      
                         $  | 
                      
                         (7,857)  | 
                      
                         | 
                      
                         $  | 
                      
                         39,602  | 
                    |||||||||||||||||
| 
                         As a % of revenue (GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         52.8 %  | 
                      
                         | 
                      
                         | 
                      
                         50.6 %  | 
                      
                         | 
                      
                         | 
                      
                         2.2 %  | 
                      
                         | 
                      
                         | 
                      
                         (1.8) %  | 
                      
                         | 
                      
                         | 
                      
                         0.2 %  | 
                    |||||||||||||||||
| 
                         As a % of revenue (Non-GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         53.2 %  | 
                      
                         | 
                      
                         | 
                      
                         40.5 %  | 
                      
                         | 
                      
                         | 
                      
                         12.7 %  | 
                      
                         | 
                      
                         | 
                      
                         (1.7) %  | 
                      
                         | 
                      
                         | 
                      
                         8.7 %  | 
                    |||||||||||||||||
| 
                         Diluted net income per share:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.01  | 
                    |||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.34  | 
                    |||||||||||||||||
| 
                         Shares used in per share calculation:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         GAAP and Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         117,385  | 
                    |||||||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||
| 
                         (1) Includes write-off of $1.8 million for internally developed capitalized software, and impairment charges of $3.7 million for right-of-use assets, $4.3 million for leasehold improvements, and $2.3 million related to the fair value of other unrecoverable facility costs.  | 
                    ||||||||||||||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||||||||||||||
| 
                         Harmonic Inc.  | 
                    ||||||||||
| 
                         Calculation of Adjusted EBITDA by Segment (Unaudited)  | 
                    ||||||||||
| 
                         (In thousands, except percentages)  | 
                    ||||||||||
| 
                         | 
                    ||||||||||
| 
                         | 
                      
                         Three Months Ended September 26, 2025  | 
                    |||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                    |||||||
| 
                         Income from operations  | 
                      
                         $  | 
                      
                         12,095  | 
                      
                         | 
                      
                         $  | 
                      
                         6,884  | 
                    |||||
| 
                         Depreciation  | 
                      
                         | 
                      
                         2,012  | 
                      
                         | 
                      
                         | 
                      
                         811  | 
                    |||||
| 
                         Other non-operating income, net  | 
                      
                         | 
                      
                         77  | 
                      
                         | 
                      
                         | 
                      
                         36  | 
                    |||||
| 
                         Adjusted EBITDA(1)  | 
                      
                         $  | 
                      
                         14,184  | 
                      
                         | 
                      
                         $  | 
                      
                         7,731  | 
                    |||||
| 
                         Revenue  | 
                      
                         $  | 
                      
                         90,492  | 
                      
                         | 
                      
                         $  | 
                      
                         51,890  | 
                    |||||
| 
                         Adjusted EBITDA margin % (1)  | 
                      
                         | 
                      
                         15.7 %  | 
                      
                         | 
                      
                         | 
                      
                         14.9 %  | 
                    |||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         | 
                      
                         Three Months Ended June 27, 2025  | 
                    |||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                    |||||||
| 
                         Income from operations  | 
                      
                         $  | 
                      
                         8,585  | 
                      
                         | 
                      
                         $  | 
                      
                         5,347  | 
                    |||||
| 
                         Depreciation  | 
                      
                         | 
                      
                         1,929  | 
                      
                         | 
                      
                         | 
                      
                         743  | 
                    |||||
| 
                         Other non-operating income, net  | 
                      
                         | 
                      
                         255  | 
                      
                         | 
                      
                         | 
                      
                         104  | 
                    |||||
| 
                         Adjusted EBITDA(1)  | 
                      
                         $  | 
                      
                         10,769  | 
                      
                         | 
                      
                         $  | 
                      
                         6,194  | 
                    |||||
| 
                         Revenue  | 
                      
                         $  | 
                      
                         86,918  | 
                      
                         | 
                      
                         $  | 
                      
                         51,109  | 
                    |||||
| 
                         Adjusted EBITDA margin % (1)  | 
                      
                         | 
                      
                         12.4 %  | 
                      
                         | 
                      
                         | 
                      
                         12.1 %  | 
                    |||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         | 
                      
                         Three Months Ended September 27, 2024  | 
                    |||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                    |||||||
| 
                         Income from operations  | 
                      
                         $  | 
                      
                         38,192  | 
                      
                         | 
                      
                         $  | 
                      
                         6,326  | 
                    |||||
| 
                         Depreciation  | 
                      
                         | 
                      
                         2,001  | 
                      
                         | 
                      
                         | 
                      
                         859  | 
                    |||||
| 
                         Other non-operating expense, net  | 
                      
                         | 
                      
                         (2,733)  | 
                      
                         | 
                      
                         | 
                      
                         (1,199)  | 
                    |||||
| 
                         Adjusted EBITDA(1)  | 
                      
                         $  | 
                      
                         37,460  | 
                      
                         | 
                      
                         $  | 
                      
                         5,986  | 
                    |||||
| 
                         Revenue  | 
                      
                         $  | 
                      
                         145,338  | 
                      
                         | 
                      
                         $  | 
                      
                         50,418  | 
                    |||||
| 
                         Adjusted EBITDA margin % (1)  | 
                      
                         | 
                      
                         25.8 %  | 
                      
                         | 
                      
                         | 
                      
                         11.9 %  | 
                    |||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         | 
                      
                         Nine Months Ended September 26, 2025  | 
                    |||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                    |||||||
| 
                         Income from operations (1)  | 
                      
                         $  | 
                      
                         34,701  | 
                      
                         | 
                      
                         $  | 
                      
                         16,802  | 
                    |||||
| 
                         Depreciation  | 
                      
                         | 
                      
                         5,905  | 
                      
                         | 
                      
                         | 
                      
                         2,310  | 
                    |||||
| 
                         Other non-operating income, net  | 
                      
                         | 
                      
                         208  | 
                      
                         | 
                      
                         | 
                      
                         92  | 
                    |||||
| 
                         Adjusted EBITDA(1)  | 
                      
                         $  | 
                      
                         40,814  | 
                      
                         | 
                      
                         $  | 
                      
                         19,204  | 
                    |||||
| 
                         Revenue  | 
                      
                         $  | 
                      
                         262,288  | 
                      
                         | 
                      
                         $  | 
                      
                         151,256  | 
                    |||||
| 
                         Adjusted EBITDA margin % (1)  | 
                      
                         | 
                      
                         15.6 %  | 
                      
                         | 
                      
                         | 
                      
                         12.7 %  | 
                    |||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         | 
                      
                         Nine Months Ended September 27, 2024  | 
                    |||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                    |||||||
| 
                         Income (loss) from operations (1)  | 
                      
                         $  | 
                      
                         60,567  | 
                      
                         | 
                      
                         $  | 
                      
                         (2,594)  | 
                    |||||
| 
                         Depreciation  | 
                      
                         | 
                      
                         6,120  | 
                      
                         | 
                      
                         | 
                      
                         3,051  | 
                    |||||
| 
                         Other non-operating expense, net  | 
                      
                         | 
                      
                         (2,506)  | 
                      
                         | 
                      
                         | 
                      
                         (1,085)  | 
                    |||||
| 
                         Adjusted EBITDA(1)  | 
                      
                         $  | 
                      
                         64,181  | 
                      
                         | 
                      
                         $  | 
                      
                         (628)  | 
                    |||||
| 
                         Revenue  | 
                      
                         $  | 
                      
                         317,172  | 
                      
                         | 
                      
                         $  | 
                      
                         139,384  | 
                    |||||
| 
                         Adjusted EBITDA margin % (1)  | 
                      
                         | 
                      
                         20.2 %  | 
                      
                         | 
                      
                         | 
                      
                         (0.5) %  | 
                    |||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         (1) Adjusted EBITDA and Adjusted EBITDA margin are Non-GAAP financial measures. Refer below for the "Net Income (Loss) to Consolidated Segment Adjusted EBITDA Reconciliation."  | 
                    
| 
                         Harmonic Inc.  | 
                    ||||||||||||||||
| 
                         Preliminary Net Income to Consolidated Segment Adjusted EBITDA Reconciliation (Unaudited)  | 
                    ||||||||||||||||
| 
                         (In thousands, except percentages)  | 
                    ||||||||||||||||
| 
                         | 
                    ||||||||||||||||
| 
                         | 
                      
                         Three Months Ended  | 
                    |||||||||||||||
| 
                         | 
                      
                         September 26, 2025  | 
                      
                         | 
                      
                         June 27, 2025  | 
                      
                         | 
                      
                         September 27, 2024  | 
                    |||||||||||
| 
                         Net income (GAAP)  | 
                      
                         $  | 
                      
                         2,694  | 
                      
                         | 
                      
                         $  | 
                      
                         2,871  | 
                      
                         | 
                      
                         $  | 
                      
                         21,718  | 
                    ||||||||
| 
                         Provision for income taxes  | 
                      
                         | 
                      
                         6,054  | 
                      
                         | 
                      
                         | 
                      
                         105  | 
                      
                         | 
                      
                         | 
                      
                         7,088  | 
                    ||||||||
| 
                         Interest expense, net  | 
                      
                         | 
                      
                         1,184  | 
                      
                         | 
                      
                         | 
                      
                         1,253  | 
                      
                         | 
                      
                         | 
                      
                         2,686  | 
                    ||||||||
| 
                         Depreciation  | 
                      
                         | 
                      
                         2,823  | 
                      
                         | 
                      
                         | 
                      
                         2,672  | 
                      
                         | 
                      
                         | 
                      
                         2,860  | 
                    ||||||||
| 
                         EBITDA  | 
                      
                         | 
                      
                         12,755  | 
                      
                         | 
                      
                         | 
                      
                         6,901  | 
                      
                         | 
                      
                         | 
                      
                         34,352  | 
                    ||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||||
| 
                         Adjustments  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||||
| 
                         Stock-based compensation  | 
                      
                         | 
                      
                         7,324  | 
                      
                         | 
                      
                         | 
                      
                         7,697  | 
                      
                         | 
                      
                         | 
                      
                         5,710  | 
                    ||||||||
| 
                         Restructuring and related charges  | 
                      
                         | 
                      
                         1,087  | 
                      
                         | 
                      
                         | 
                      
                         650  | 
                      
                         | 
                      
                         | 
                      
                         281  | 
                    ||||||||
| 
                         Non-recurring advisory fees  | 
                      
                         | 
                      
                         749  | 
                      
                         | 
                      
                         | 
                      
                         78  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                    ||||||||
| 
                         Lease-related asset impairment and other charges  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         1,637  | 
                      
                         | 
                      
                         | 
                      
                         3,103  | 
                    ||||||||
| 
                         Total consolidated segment adjusted EBITDA (Non-GAAP)  | 
                      
                         $  | 
                      
                         21,915  | 
                      
                         | 
                      
                         $  | 
                      
                         16,963  | 
                      
                         | 
                      
                         $  | 
                      
                         43,446  | 
                    ||||||||
| 
                         Revenue  | 
                      
                         $  | 
                      
                         142,382  | 
                      
                         | 
                      
                         $  | 
                      
                         138,027  | 
                      
                         | 
                      
                         $  | 
                      
                         195,756  | 
                    ||||||||
| 
                         Net income margin (GAAP)  | 
                      
                         | 
                      
                         1.9 %  | 
                      
                         | 
                      
                         | 
                      
                         2.1 %  | 
                      
                         | 
                      
                         | 
                      
                         11.1 %  | 
                    ||||||||
| 
                         Consolidated segment Adjusted EBITDA margin (Non-GAAP)  | 
                      
                         | 
                      
                         15.4 %  | 
                      
                         | 
                      
                         | 
                      
                         12.3 %  | 
                      
                         | 
                      
                         | 
                      
                         22.2 %  | 
                    ||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         Nine Months Ended  | 
                    ||||||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         September 26, 2025  | 
                      
                         | 
                      
                         September 27, 2024  | 
                    ||||||||||
| 
                         Net income (GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         11,505  | 
                      
                         | 
                      
                         $  | 
                      
                         1,097  | 
                    ||||||||
| 
                         Provision for income taxes  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         8,700  | 
                      
                         | 
                      
                         | 
                      
                         736  | 
                    ||||||||
| 
                         Interest expense, net  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         3,911  | 
                      
                         | 
                      
                         | 
                      
                         4,833  | 
                    ||||||||
| 
                         Depreciation  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         8,215  | 
                      
                         | 
                      
                         | 
                      
                         9,171  | 
                    ||||||||
| 
                         EBITDA  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         32,331  | 
                      
                         | 
                      
                         | 
                      
                         15,837  | 
                    ||||||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||||
| 
                         Adjustments  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    ||||||||
| 
                         Stock-based compensation  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         23,486  | 
                      
                         | 
                      
                         | 
                      
                         19,587  | 
                    ||||||||
| 
                         Restructuring and related charges  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         1,737  | 
                      
                         | 
                      
                         | 
                      
                         15,271  | 
                    ||||||||
| 
                         Non-recurring advisory fees  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         827  | 
                      
                         | 
                      
                         | 
                      
                         755  | 
                    ||||||||
| 
                         Lease-related asset impairment and other charges  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         1,637  | 
                      
                         | 
                      
                         | 
                      
                         12,103  | 
                    ||||||||
| 
                         Total consolidated segment adjusted EBITDA (Non-GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         60,018  | 
                      
                         | 
                      
                         $  | 
                      
                         63,553  | 
                    ||||||||
| 
                         Revenue  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         413,544  | 
                      
                         | 
                      
                         $  | 
                      
                         456,556  | 
                    ||||||||
| 
                         Net income margin (GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         2.8 %  | 
                      
                         | 
                      
                         | 
                      
                         0.2 %  | 
                    ||||||||
| 
                         Consolidated segment Adjusted EBITDA margin (Non-GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         14.5 %  | 
                      
                         | 
                      
                         | 
                      
                         13.9 %  | 
                    ||||||||
| 
                         Harmonic Inc.  | 
                    ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 
                         GAAP to Non-GAAP Reconciliations on Financial Guidance (Unaudited)  | 
                    ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 
                         (In millions, except percentages and per share data)  | 
                    ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Q4 2025 Financial Guidance (1)  | 
                    |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 
                         | 
                      
                         Revenue  | 
                      
                         | 
                      
                         
                          
                            Gross  | 
                      
                         | 
                      
                         
                          
                            Total  | 
                      
                         | 
                      
                         
                          
                            Income  | 
                      
                         | 
                      
                         
                          
                            Net  | 
                    |||||||||||||||||||||||||||||||||||||||||||||||||
| 
                         GAAP  | 
                      
                         $  | 
                      
                         133  | 
                      
                         to  | 
                      
                         $  | 
                      
                         147  | 
                      
                         | 
                      
                         $  | 
                      
                         71  | 
                      
                         to  | 
                      
                         $  | 
                      
                         82  | 
                      
                         | 
                      
                         $  | 
                      
                         70  | 
                      
                         to  | 
                      
                         $  | 
                      
                         71  | 
                      
                         | 
                      
                         $  | 
                      
                         1  | 
                      
                         to  | 
                      
                         $  | 
                      
                         10  | 
                      
                         | 
                      
                         $  | 
                      
                         —  | 
                      
                         to  | 
                      
                         $  | 
                      
                         5  | 
                    |||||||||||||||||||||||||||||
| 
                         Stock-based compensation  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         1  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         (8)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         9  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         9  | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||||||||||||||
| 
                         Tax effect of Non-GAAP adjustments  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         (2)  | 
                      
                         to  | 
                      
                         | 
                      
                         —  | 
                    |||||||||||||||||||||||||||||
| 
                         Total adjustments  | 
                      
                         | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         1  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         (8)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         9  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         7  | 
                      
                         to  | 
                      
                         | 
                      
                         9  | 
                    |||||||||||||||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         $  | 
                      
                         133  | 
                      
                         to  | 
                      
                         $  | 
                      
                         147  | 
                      
                         | 
                      
                         $  | 
                      
                         72  | 
                      
                         to  | 
                      
                         $  | 
                      
                         83  | 
                      
                         | 
                      
                         $  | 
                      
                         62  | 
                      
                         to  | 
                      
                         $  | 
                      
                         63  | 
                      
                         | 
                      
                         $  | 
                      
                         10  | 
                      
                         to  | 
                      
                         $  | 
                      
                         19  | 
                      
                         | 
                      
                         $  | 
                      
                         7  | 
                      
                         to  | 
                      
                         $  | 
                      
                         14  | 
                    |||||||||||||||||||||||||||||
| 
                         As a % of revenue (GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         53.4 %  | 
                      
                         to  | 
                      
                         | 
                      
                         55.8 %  | 
                      
                         | 
                      
                         | 
                      
                         52.6 %  | 
                      
                         to  | 
                      
                         | 
                      
                         48.3 %  | 
                      
                         | 
                      
                         | 
                      
                         0.8 %  | 
                      
                         to  | 
                      
                         | 
                      
                         6.8 %  | 
                      
                         | 
                      
                         | 
                      
                         0.0 %  | 
                      
                         to  | 
                      
                         | 
                      
                         3.4 %  | 
                    |||||||||||||||||||||||||||||
| 
                         As a % of revenue (Non-GAAP)  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         54.5 %  | 
                      
                         to  | 
                      
                         | 
                      
                         56.0 %  | 
                      
                         | 
                      
                         | 
                      
                         46.6 %  | 
                      
                         to  | 
                      
                         | 
                      
                         42.9 %  | 
                      
                         | 
                      
                         | 
                      
                         7.5 %  | 
                      
                         to  | 
                      
                         | 
                      
                         12.9 %  | 
                      
                         | 
                      
                         | 
                      
                         5.3 %  | 
                      
                         to  | 
                      
                         | 
                      
                         9.5 %  | 
                    |||||||||||||||||||||||||||||
| 
                         Diluted net income per share:  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||||||||||||||||||||||||||
| 
                         GAAP  | 
                      
                         | 
                      
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                         | 
                      
                         | 
                      
                         | 
                      
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                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         —  | 
                      
                         to  | 
                      
                         $  | 
                      
                         0.04  | 
                    |||||||||||||||||||||||||||||
| 
                         Non-GAAP  | 
                      
                         | 
                      
                         | 
                      
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                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         $  | 
                      
                         0.06  | 
                      
                         to  | 
                      
                         $  | 
                      
                         0.12  | 
                    |||||||||||||||||||||||||||||
| 
                         Shares used in per share calculation:  | 
                      
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                         | 
                    |||||||||||||||||||||||||||||
| 
                         GAAP and Non-GAAP  | 
                      
                         | 
                      
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                         | 
                      
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                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         113.1  | 
                    |||||||||||||||||||||||||||||||||
| 
                         | 
                    
| 
                         (1) Components may not sum to total due to rounding.  | 
                    
| 
                         Harmonic Inc.  | 
                    ||||||||||||||||||||||||||
| 
                         Calculation of Adjusted EBITDA by Segment on Financial Guidance (Unaudited) (1)  | 
                    ||||||||||||||||||||||||||
| 
                         (In millions)  | 
                    ||||||||||||||||||||||||||
| 
                         | 
                    ||||||||||||||||||||||||||
| 
                         | 
                      
                         Q4 2025 Financial Guidance  | 
                    |||||||||||||||||||||||||
| 
                         | 
                      
                         Broadband  | 
                      
                         | 
                      
                         Video  | 
                    |||||||||||||||||||||||
| 
                         Income from operations  | 
                      
                         $  | 
                      
                         8  | 
                      
                         | 
                      
                         to  | 
                      
                         $  | 
                      
                         14  | 
                      
                         | 
                      
                         $  | 
                      
                         2  | 
                      
                         | 
                      
                         to  | 
                      
                         $  | 
                      
                         5  | 
                    |||||||||||||
| 
                         Depreciation  | 
                      
                         | 
                      
                         2  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         2  | 
                      
                         | 
                      
                         | 
                      
                         1  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         1  | 
                    |||||||||||||
| 
                         Segment adjusted EBITDA(2)  | 
                      
                         $  | 
                      
                         10  | 
                      
                         | 
                      
                         to  | 
                      
                         $  | 
                      
                         16  | 
                      
                         | 
                      
                         $  | 
                      
                         3  | 
                      
                         | 
                      
                         to  | 
                      
                         $  | 
                      
                         6  | 
                    |||||||||||||
| 
                         | 
                    
| 
                         (1) Components may not sum to total due to rounding.  | 
                    
| 
                         (2) Segment Adjusted EBITDA is a Non-GAAP financial measure. Refer below for the "Net Income to Consolidated Segment Adjusted EBITDA reconciliation on Financial Guidance."  | 
                    
| 
                         Harmonic Inc.  | 
                    ||||||||||
| 
                         Net Income to Consolidated Segment Adjusted EBITDA Reconciliation on Financial Guidance (Unaudited) (1)  | 
                    ||||||||||
| 
                         (In millions)  | 
                    ||||||||||
| 
                         | 
                    ||||||||||
| 
                         | 
                      
                         Q4 2025 Financial Guidance  | 
                    |||||||||
| 
                         Net income (GAAP)  | 
                      
                         $  | 
                      
                         —  | 
                      
                         to  | 
                      
                         $  | 
                      
                         5  | 
                    |||||
| 
                         Provision for income taxes  | 
                      
                         | 
                      
                         —  | 
                      
                         | 
                      
                         | 
                      
                         4  | 
                    |||||
| 
                         Interest expense, net  | 
                      
                         | 
                      
                         1  | 
                      
                         | 
                      
                         | 
                      
                         1  | 
                    |||||
| 
                         Depreciation  | 
                      
                         | 
                      
                         3  | 
                      
                         | 
                      
                         | 
                      
                         3  | 
                    |||||
| 
                         EBITDA  | 
                      
                         | 
                      
                         4  | 
                      
                         to  | 
                      
                         | 
                      
                         13  | 
                    |||||
| 
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Adjustments  | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                      
                         | 
                    |||||
| 
                         Stock-based compensation  | 
                      
                         | 
                      
                         9  | 
                      
                         | 
                      
                         | 
                      
                         9  | 
                    |||||
| 
                         Total consolidated segment adjusted EBITDA (Non-GAAP)  | 
                      
                         $  | 
                      
                         13  | 
                      
                         to  | 
                      
                         $  | 
                      
                         22  | 
                    |||||
| 
                         | 
                    
| 
                         (1) Components may not sum to total due to rounding.  | 
                    
SOURCE Harmonic Inc.

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