Other Comprehensive Income - Components of and Changes in Accumulated Other Comprehensive (loss) Income, Net of Related Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 27, 2025	Sep. 28, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ 972,439
Other comprehensive income	$ 419	$ 923	5,265	$ (1,690)
Ending Balance	888,704		888,704
Unrealized Holding (Losses) Gains on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(2,805)
Other comprehensive income			2,081
Ending Balance	(724)		(724)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(9,205)
Other comprehensive income			3,184
Ending Balance	(6,021)		(6,021)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			(12,010)
Other comprehensive income			5,265
Ending Balance	$ (6,745)		$ (6,745)