Income Taxes Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Jan. 03, 2021	Dec. 29, 2019
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Interest Expense	$ 0	$ 2,558
Deferred Tax Assets, Operating Lease Liabilities	219,096	218,503
Postretirement benefit expenses	853	944
Stock-based compensation expense	1,323	1,274
Federal net operating loss carryforwards	28,880	30,588
State net operating loss carryforwards	6,032	5,388
Tax credit carryforwards	35,650	32,378
Accrued vacation benefits	2,684	2,440
Accrued workers compensation	1,841	0
Accumulated other comprehensive income-postretirement benefits	(474)	(280)
Deferred Tax Liabilities, Other	(1,172)	(252)
Other	4,345	4,690
Deferred Tax Assets, Gross, Total	300,704	298,763
Less: Valuation allowance	(13,138)	0
Net deferred income tax assets	287,566	298,763
Deferred Tax Liabilities, Operating Right-of-use Assets	(205,897)	(208,804)
Property and equipment depreciation	(26,056)	(29,685)
Franchise rights	(65,329)	(66,725)
Deferred Tax Liabilities, Gross	(298,928)	(305,746)
Carrying value of net deferred income tax assets	$ (11,362)	$ (6,983)