Accumulated Other Comprehensive Loss - Changes in AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Changes in accumulated other comprehensive income (loss)
Beginning balance	$ 913,966	$ 840,614	$ 920,254	$ 831,877
Net current period other comprehensive income	(3,701)	4,200	(1,001)	4,038
Ending balance	940,181	841,605	940,181	841,605
Defined benefit pension plan
Changes in accumulated other comprehensive income (loss)
Beginning balance			(9,344)
Amounts reclassified from AOCL			41
Net current period other comprehensive income			41
Ending balance	(9,303)		(9,303)
Foreign Currency Translation Adjustments
Changes in accumulated other comprehensive income (loss)
Beginning balance			(8,825)
Other comprehensive income before reclassifications			(1,042)
Net current period other comprehensive income			(1,042)
Ending balance	(9,867)		(9,867)
Accumulated Other Comprehensive Loss
Changes in accumulated other comprehensive income (loss)
Beginning balance	(15,469)	(35,756)	(18,169)	(35,594)
Other comprehensive income before reclassifications			(1,042)
Amounts reclassified from AOCL			41
Net current period other comprehensive income			(1,001)
Ending balance	$ (19,170)	$ (31,556)	$ (19,170)	$ (31,556)