Other (Income) Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Other Income and Expenses [Abstract]
Pension benefit expense	$ 2,787	$ 2,748
Foreign currency gain	(2,250)	(5,295)
(Gain) loss on sale of business units, property, and equipment	(2,073)	582
Other income items	(795)	(260)
Legal settlement income	0	(1,247)
Total other income	$ (2,331)	$ (3,472)