Leases Contractual Obligations for Operating and Financing Liabilities (Details) - USD ($) $ in Thousands		Jun. 27, 2020	Dec. 28, 2019
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year		$ 2,509
Lessee, Operating Lease, Liability, to be Paid, Year Two		4,683
Lessee, Operating Lease, Liability, to be Paid, Year Three		4,182
Lessee, Operating Lease, Liability, to be Paid, Year Four		3,247
Lessee, Operating Lease, Liability, to be Paid, Year Five		2,940
Lessee, Operating Lease, Liability, to be Paid, after Year Five		14,529
Lessee, Operating Lease, Liability, to be Paid		32,090
Lessee, Operating Lease, Liability, Undiscounted Excess Amount		7,786
Operating Lease, Liability		24,304	$ 25,295
Finance Lease, Liability, Payment, Due [Abstract]
Finance Lease, Liability, to be Paid, Remainder of Fiscal Year		2,186
Finance Lease, Liability, to be Paid, Year Two		5,457
Finance Lease, Liability, to be Paid, Year Three		3,323
Finance Lease, Liability, to be Paid, Year Four		2,284
Finance Lease, Liability, to be Paid, Year Five		1,045
Finance Lease, Liability, to be Paid, after Year Five		16,039
Finance Lease, Liability, Payment, Due		30,334
Finance Lease, Liability, Undiscounted Excess Amount		10,379
Finance Lease, Liability	[1]	$ 19,955	$ 19,483

[1] Includes leases classified as failed sale-leaseback transactions.