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Acquisitions - Preliminary Price Allocation (Details) - USD ($) $ in Thousands		9 Months Ended
	Jan. 28, 2021	Sep. 25, 2021	Sep. 26, 2020	Dec. 26, 2020
Total purchase consideration:
Cash, net of cash acquired, and restricted cash		$ 110,646	$ 0
Allocation of consideration to assets acquired and liabilities assumed:
Goodwill		$ 847,205		$ 816,812
Hartland Controls
Total purchase consideration:
Cash, net of cash acquired, and restricted cash	$ 109,852
Allocation of consideration to assets acquired and liabilities assumed:
Trade receivables, net	13,027
Inventories	35,808
Other current assets	2,224
Property, plant, and equipment	6,296
Intangible assets	39,660
Goodwill	40,442
Other non-current assets	3,787
Current liabilities	(24,846)
Other non-current liabilities	(6,546)
Assets acquired and liabilities assumed	$ 109,852