Accumulated Other Comprehensive Loss (Details) $ in Thousands	3 Months Ended
	Mar. 28, 2020 USD ($)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ 386,535
Other comprehensive loss before reclassifications	(11,913)
Amounts reclassified from accumulated other comprehensive loss	413
Net current-period other comprehensive loss	(11,500)
Ending balance	361,719
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(28,308)
Other comprehensive loss before reclassifications	(11,106)
Amounts reclassified from accumulated other comprehensive loss	0
Net current-period other comprehensive loss	(11,106)
Ending balance	(39,414)
Accumulated Tax Effect
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(964)
Other comprehensive loss before reclassifications	0
Amounts reclassified from accumulated other comprehensive loss	0
Net current-period other comprehensive loss	0
Ending balance	(964)
Actuarial Gain (Loss) on Pension
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(5,367)
Other comprehensive loss before reclassifications	(807)
Amounts reclassified from accumulated other comprehensive loss	413
Net current-period other comprehensive loss	(394)
Ending balance	(5,761)
Total
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(34,639)
Ending balance	$ (46,139)