SEGMENT INFORMATION - Schedule of Financial Information by Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 26, 2025	Sep. 27, 2024	Sep. 26, 2025	Sep. 27, 2024
Segment Reporting Information [Line Items]
Revenue	$ 142,382	$ 195,756	$ 413,544	$ 456,556
Cost of revenue	65,253	91,024	184,048	215,286
Research and development	29,699	30,073	90,490	89,562
Selling, general and administrative	36,524	35,851	111,816	114,537
Income from operations	9,819	35,424	23,816	10,268
Operating Segments
Segment Reporting Information [Line Items]
Revenue	142,382	195,756	413,544	456,556
Cost of revenue	64,993	90,730	182,359	213,737
Research and development	27,794	28,269	84,886	84,281
Selling, general and administrative	30,616	32,239	94,796	100,565
Income from operations	18,979	44,518	51,503	57,973
Operating Segments \| Broadband
Segment Reporting Information [Line Items]
Revenue	90,492	145,338	262,288	317,172
Cost of revenue	47,727	75,082	132,031	165,186
Research and development	15,195	15,399	46,399	42,343
Selling, general and administrative	15,475	16,665	49,157	49,076
Income from operations	12,095	38,192	34,701	60,567
Operating Segments \| Video
Segment Reporting Information [Line Items]
Revenue	51,890	50,418	151,256	139,384
Cost of revenue	17,266	15,648	50,328	48,551
Research and development	12,599	12,870	38,487	41,938
Selling, general and administrative	15,141	15,574	45,639	51,489
Income from operations	$ 6,884	$ 6,326	$ 16,802	$ (2,594)

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

The net result for the period of deducting operating expenses from operating revenues.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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- Definition

The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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