Other Operating Expenses (Schedule of Other Operating Cost and Expense By Component) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2020	Sep. 27, 2019	Oct. 02, 2020	Sep. 27, 2019
Other Operating Income Expense Detail [Line Items]
Total other operating expenses	$ 2,674	$ 2,241	$ 7,631	$ 8,239
Strategic reorganization and alignment
Other Operating Income Expense Detail [Line Items]
Total other operating expenses	0	962	686	4,352
Manufacturing alignment to support growth
Other Operating Income Expense Detail [Line Items]
Total other operating expenses	36	515	224	1,661
2020 restructuring plan
Other Operating Income Expense Detail [Line Items]
Total other operating expenses	858	0	2,275	0
Acquisition and integration expenses
Other Operating Income Expense Detail [Line Items]
Total other operating expenses	107	0	510	0
Other general expenses
Other Operating Income Expense Detail [Line Items]
Total other operating expenses	$ 1,673	$ 764	$ 3,936	$ 2,226