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 at Dec. 31, 2021	$ 1,430,093	$ 351	$ 914,802	$ 562,882	$ (47,942)
Beginning Balance (in shares) at Dec. 31, 2021		175,481
Increase (Decrease) in Stockholders' Equity
Net issuance of common stock under stock plans	3,594	$ 0	3,594
Net issuance of common stock under stock plans (in shares)		136
Repurchase of common stock	(130,405)	$ (4)		(130,401)
Repurchase of common stock (in shares)		(1,879)
Stock-based compensation expense	15,056		15,056
Payment of dividends	(11,303)			(11,303)
Net income	67,333			67,333
Net unrealized gain (loss) on available-for-sale investments, net of tax	(13,548)				(13,548)
Reclassification of net realized (gain) loss on the sale of available-for-sale investments	36				36
Foreign currency translation adjustment	(2,111)				(2,111)
Ending Balance at Apr. 03, 2022	1,358,745	$ 347	933,452	488,511	(63,565)
Ending Balance (in shares) at Apr. 03, 2022		173,738
Beginning Balance at Dec. 31, 2022	$ 1,438,394	$ 345	979,167	528,179	(69,297)
Beginning Balance (in shares) at Dec. 31, 2022	172,631	172,631
Increase (Decrease) in Stockholders' Equity
Net issuance of common stock under stock plans	$ (3,055)	$ 1	(3,056)
Net issuance of common stock under stock plans (in shares)		449
Repurchase of common stock	(24,178)	$ (1)		(24,177)
Repurchase of common stock (in shares)		(479)
Stock-based compensation expense	16,579		16,579
Payment of dividends	(12,091)			(12,091)
Net income	25,615			25,615
Net unrealized gain (loss) on available-for-sale investments, net of tax	5,426				5,426
Reclassification of net realized (gain) loss on the sale of available-for-sale investments					0
Foreign currency translation adjustment	(359)				(359)
Ending Balance at Apr. 02, 2023	$ 1,446,331	$ 345	$ 992,690	$ 517,526	$ (64,230)
Ending Balance (in shares) at Apr. 02, 2023	172,601	172,601