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Segment Reporting and Geographic Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024
Segment Reporting Information [Line Items]
Total revenue	$ 218,193	$ 252,210	$ 738,397	$ 723,382
South Korea [Member]
Segment Reporting Information [Line Items]
Total revenue	44,864	77,014	220,828	227,958
China [Member]
Segment Reporting Information [Line Items]
Total revenue	27,359	32,112	56,872	86,222
United States [Member]
Segment Reporting Information [Line Items]
Total revenue	37,793	21,979	90,946	61,763
Taiwan [Member]
Segment Reporting Information [Line Items]
Total revenue	59,243	78,273	227,441	209,006
Southeast Asia [Member]
Segment Reporting Information [Line Items]
Total revenue	22,329	15,589	44,179	55,796
Japan [Member]
Segment Reporting Information [Line Items]
Total revenue	16,015	12,559	58,152	45,172
Europe [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 10,590	$ 14,684	$ 39,979	$ 37,465

X

- 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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