Commitments and Contingencies (Details) - USD ($)	9 Months Ended		12 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Dec. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Undiscounted cost of future remediation efforts	$ 3,700,000		$ 3,700,000
Maximum amount of Company's exposure to environmental liability	2,400,000
Indemnification asset recorded against the liability	1,300,000		1,300,000
Letter of credit, amount outstanding	5,300,000		4,500,000
Line of Credit Facility [Line Items]
Borrowings on asset-based credit facility	264,900,000	$ 336,600,000
Letter of credit
Line of Credit Facility [Line Items]
Borrowings on asset-based credit facility	$ 0		$ 0