Acquisitions and Dispositions (Aggregate Consideration) (Details) - USD ($) $ in Thousands				12 Months Ended
	Nov. 01, 2018	Jun. 01, 2018	Jan. 29, 2018	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Cash consideration, net of cash acquired				$ 2,029	$ 157,363	$ 13,813
BWI
Business Acquisition [Line Items]
Accounts receivable	$ 9,215
Inventory	10,736
Property, plant and equipment	2,222
Goodwill	3,739
Intangible assets	2,970
Accounts payable and accrued expenses	(6,816)
Deferred income taxes	0
Other assets and liabilities, net	240
Cash consideration, net of cash acquired	$ 22,306
Graham & Maiman
Business Acquisition [Line Items]
Accounts receivable		$ 0
Inventory		6,090
Property, plant and equipment		19,557
Goodwill		10,996
Intangible assets		2,750
Accounts payable and accrued expenses		(426)
Deferred income taxes		0
Other assets and liabilities, net		0
Cash consideration, net of cash acquired		$ 38,967
DW3
Business Acquisition [Line Items]
Accounts receivable			$ 8,590
Inventory			5,059
Property, plant and equipment			8,196
Goodwill			33,623
Intangible assets			62,873
Accounts payable and accrued expenses			(10,418)
Deferred income taxes			(11,546)
Other assets and liabilities, net			(68)
Cash consideration, net of cash acquired			$ 96,309
2018 Acquisitions
Business Acquisition [Line Items]
Accounts receivable					17,805
Inventory					21,885
Property, plant and equipment					29,975
Goodwill					48,358
Intangible assets					68,593
Accounts payable and accrued expenses					(17,660)
Deferred income taxes					(11,546)
Other assets and liabilities, net					172
Cash consideration, net of cash acquired					$ 157,582