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, 2021		175,481
Beginning Balance at Dec. 31, 2021	$ 1,430,093	$ 351	$ 914,802	$ 562,882	$ (47,942)
Increase (Decrease) in Stockholders' Equity
Net issuance of common stock under stock plans (in shares)		256
Net issuance of common stock under stock plans	4,225	$ 0	4,225
Repurchase of common stock (in shares)		(2,807)
Repurchase of common stock	(178,387)	$ (5)		(178,382)
Stock-based compensation expense	41,419		41,419
Payment of dividends	(33,837)			(33,837)
Net income	160,214			160,214
Net unrealized gain (loss) on available-for-sale investments, net of tax	(21,185)				(21,185)
Reclassification of net realized (gain) loss on the sale of available-for-sale investments	103				103
Foreign currency translation adjustment	(13,425)				(13,425)
Ending Balance (in shares) at Oct. 02, 2022		172,930
Ending Balance at Oct. 02, 2022	1,389,220	$ 346	960,446	510,877	(82,449)
Beginning Balance (in shares) at Jul. 03, 2022		173,397
Beginning Balance at Jul. 03, 2022	1,389,985	$ 347	947,269	512,230	(69,861)
Increase (Decrease) in Stockholders' Equity
Net issuance of common stock under stock plans (in shares)		73
Net issuance of common stock under stock plans	(189)	$ 0	(189)
Repurchase of common stock (in shares)		(540)
Repurchase of common stock	(24,070)	$ (1)		(24,069)
Stock-based compensation expense	13,366		13,366
Payment of dividends	(11,264)			(11,264)
Net income	33,980			33,980
Net unrealized gain (loss) on available-for-sale investments, net of tax	(5,315)				(5,315)
Reclassification of net realized (gain) loss on the sale of available-for-sale investments	79				79
Foreign currency translation adjustment	(7,352)				(7,352)
Ending Balance (in shares) at Oct. 02, 2022		172,930
Ending Balance at Oct. 02, 2022	$ 1,389,220	$ 346	960,446	510,877	(82,449)
Beginning Balance (in shares) at Dec. 31, 2022	172,631	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	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	172,142
Ending Balance at Oct. 01, 2023	$ 1,488,598	$ 344	$ 1,023,960	$ 534,337	$ (70,043)