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+ Details

Business Acquisitions (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2020	Sep. 27, 2019	Oct. 02, 2020	Sep. 27, 2019
Business Acquisition [Line Items]
Sales	$ 235,942	$ 303,587	$ 804,483	$ 932,457
InoMec Ltd And US BioDesign LLC
Business Acquisition [Line Items]
Sales	$ 2,200		5,400
Acquisition related costs			1,000
InoMec Ltd And US BioDesign LLC \| Other operating expenses
Business Acquisition [Line Items]
Acquisition related costs			$ 900