Acquisitions - C&S Products (Details) - USD ($) $ in Thousands	May 31, 2019	Dec. 28, 2019	Sep. 28, 2019	Dec. 29, 2018
Business Acquisition [Line Items]
Goodwill		$ 289,854	$ 286,077	$ 281,177
C&S Products
Business Acquisition [Line Items]
Current assets, net of cash and cash equivalents acquired	$ 10,235
Fixed assets	19,957
Goodwill	3,777
Other assets	1,839
Other intangible assets, net	2,810
Current liabilities	(2,137)
Long-term obligations	(6,457)
Net assets acquired, less cash and cash equivalents	30,024
Measurement Period Adjustments
Current assets, net of cash and cash equivalents acquired	441
Fixed assets	(3,786)
Goodwill	3,777
Other assets	(3,242)
Other intangible assets, net	2,810
Net assets acquired, less cash and cash equivalents	0
Previously Reported | C&S Products
Business Acquisition [Line Items]
Current assets, net of cash and cash equivalents acquired	9,794
Fixed assets	23,743
Goodwill	0
Other assets	5,081
Other intangible assets, net	0
Current liabilities	(2,137)
Long-term obligations	(6,457)
Net assets acquired, less cash and cash equivalents	$ 30,024