Consolidated Statement of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 31, 2022		172,631
Beginning Balance at Dec. 31, 2022	$ 1,438,394	$ 345	$ 979,167	$ 528,179	$ (69,297)
Increase (Decrease) in Stockholders' Equity
Net issuance of common stock under stock plans (in shares)		668
Net issuance of common stock under stock plans	3,276	$ 1	3,275
Repurchase of common stock (in shares)		(1,157)
Repurchase of common stock	(59,640)	$ (2)		(59,638)
Stock-based compensation expense	41,518		41,518
Payment of dividends	(36,209)			(36,209)
Net income	102,005			102,005
Net unrealized gain (loss) on available-for-sale investments, net of tax	4,458				4,458
Reclassification of net realized (gain) loss on the sale of available-for-sale investments	624				624
Foreign currency translation adjustment	(5,828)				(5,828)
Ending Balance (in shares) at Oct. 01, 2023		172,142
Ending Balance at Oct. 01, 2023	1,488,598	$ 344	1,023,960	534,337	(70,043)
Beginning Balance (in shares) at Jul. 02, 2023		172,293
Beginning Balance at Jul. 02, 2023	1,480,463	$ 345	1,010,973	537,947	(68,802)
Increase (Decrease) in Stockholders' Equity
Net issuance of common stock under stock plans (in shares)		40
Net issuance of common stock under stock plans	622	$ 0	622
Repurchase of common stock (in shares)		(191)
Repurchase of common stock	(10,478)	$ (1)		(10,477)
Stock-based compensation expense	12,365		12,365
Payment of dividends	(12,049)			(12,049)
Net income	18,916			18,916
Net unrealized gain (loss) on available-for-sale investments, net of tax	738				738
Reclassification of net realized (gain) loss on the sale of available-for-sale investments	624				624
Foreign currency translation adjustment	(2,603)				(2,603)
Ending Balance (in shares) at Oct. 01, 2023		172,142
Ending Balance at Oct. 01, 2023	$ 1,488,598	$ 344	1,023,960	534,337	(70,043)
Beginning Balance (in shares) at Dec. 31, 2023	171,599	171,599
Beginning Balance at Dec. 31, 2023	$ 1,504,752	$ 343	1,037,202	512,543	(45,336)
Increase (Decrease) in Stockholders' Equity
Net issuance of common stock under stock plans (in shares)		471
Net issuance of common stock under stock plans	(205)	$ 1	(206)
Repurchase of common stock (in shares)		(555)
Repurchase of common stock	(23,841)	$ (1)		(23,840)
Stock-based compensation expense	39,367		39,367
Payment of dividends	(38,619)			(38,619)
Net income	77,825			77,825
Net unrealized gain (loss) on available-for-sale investments, net of tax	7,631				7,631
Reclassification of net realized (gain) loss on the sale of available-for-sale investments	8				8
Foreign currency translation adjustment	$ 108				108
Ending Balance (in shares) at Sep. 29, 2024	171,515	171,515
Ending Balance at Sep. 29, 2024	$ 1,567,026	$ 343	1,076,363	527,909	(37,589)
Beginning Balance (in shares) at Jun. 30, 2024		171,501
Beginning Balance at Jun. 30, 2024	1,506,730	$ 343	1,061,597	515,142	(70,352)
Increase (Decrease) in Stockholders' Equity
Net issuance of common stock under stock plans (in shares)		96
Net issuance of common stock under stock plans	1,666	$ 1	1,665
Repurchase of common stock (in shares)		(82)
Repurchase of common stock	(3,962)	$ (1)		(3,961)
Stock-based compensation expense	13,101		13,101
Payment of dividends	(12,863)			(12,863)
Net income	29,591			29,591
Net unrealized gain (loss) on available-for-sale investments, net of tax	6,252				6,252
Reclassification of net realized (gain) loss on the sale of available-for-sale investments	0
Foreign currency translation adjustment	$ 26,511				26,511
Ending Balance (in shares) at Sep. 29, 2024	171,515	171,515
Ending Balance at Sep. 29, 2024	$ 1,567,026	$ 343	$ 1,076,363	$ 527,909	$ (37,589)