Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 187,169	$ 123,988
Other comprehensive loss, net of tax effects:
Foreign currency translation adjustments	(9,923)	(9,618)
Changes in defined benefit plan liabilities	311	(31)
Total other comprehensive loss, net of tax effects	(9,612)	(9,649)
Comprehensive income	$ 177,557	$ 114,339