Condensed Consolidated Statements Of Equity Condensed Consolidatd Statements of Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock, Common	Additional Paid-in Capital	Retained Earnings	Foreign currency translation adjustments	Defined benefit pension adjustments
Balance (in shares) at Dec. 31, 2020		135,149	202
Balance at Dec. 31, 2020	$ 1,379,494	$ 1,351	$ (7,112)	$ 844,850	$ 577,833	$ (36,588)	$ (840)
Shares issued under stock plans (in shares)		392
Shares issued under stock plans	(13,466)	$ 4	0	(13,470)	0	0	0
Share-based compensation expense	7,138	$ 0	0	7,138	0	0	0
Repurchase and retirements of common stock (in shares)		(145)
Repurchase and retirements of common stock	(15,000)	$ (1)	0	(904)	(14,095)	0	0
Dividends declared	(10,832)	0	0	8	(10,840)	0	0
Pension liability adjustments	39	0	0	0	0	0	39
Foreign currency translation adjustments	(3,716)	0	0	0	0	(3,716)	0
Net income	84,676	$ 0	$ 0	0	84,676	0	0
Balance (in shares) at Apr. 03, 2021		135,396	202
Balance at Apr. 03, 2021	$ 1,428,333	$ 1,354	$ (7,112)	837,622	637,574	(40,304)	(801)
Common Stock, Dividends, Per Share, Declared	$ 0.08
Balance (in shares) at Dec. 31, 2021		135,719	202
Balance at Dec. 31, 2021	$ 1,713,781	$ 1,357	$ (7,112)	879,845	879,776	(38,863)	(1,222)
Shares issued under stock plans (in shares)		366
Shares issued under stock plans	(12,738)	$ 4	0	(12,742)	0	0	0
Share-based compensation expense	9,285	0	0	9,285	0	0	0
Dividends declared	(13,660)	0	0	0	(13,660)	0	0
Pension liability adjustments	73	0	0	0	0	0	73
Foreign currency translation adjustments	(2,128)	0	0	0	0	(2,128)	0
Net income	125,705	$ 0	$ 0	0	125,705	0	0
Balance (in shares) at Apr. 02, 2022		136,085	202
Balance at Apr. 02, 2022	$ 1,820,318	$ 1,361	$ (7,112)	$ 876,388	$ 991,821	$ (40,991)	$ (1,149)
Common Stock, Dividends, Per Share, Declared	$ 0.10