Schedule of Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 29, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets
Gross Carrying Amount	$ 378,822	$ 378,822
Accumulated Amortization	(351,158)	(337,062)
Foreign Currency Translation Adjustment	(6,376)	(6,356)
Net Carrying Amount	21,288	35,404
Developed technology
Finite-Lived Intangible Assets
Gross Carrying Amount	267,706	267,706
Accumulated Amortization	(252,406)	(243,191)
Foreign Currency Translation Adjustment	(5,337)	(5,343)
Net Carrying Amount	9,963	19,172
Customer Relationships
Finite-Lived Intangible Assets
Gross Carrying Amount	52,109	52,109
Accumulated Amortization	(49,134)	(47,850)
Foreign Currency Translation Adjustment	210	232
Net Carrying Amount	3,185	4,491
Trademarks and tradenames
Finite-Lived Intangible Assets
Gross Carrying Amount	59,007	59,007
Accumulated Amortization	(49,618)	(46,021)
Foreign Currency Translation Adjustment	(1,249)	(1,245)
Net Carrying Amount	$ 8,140	$ 11,741