Income Taxes - Temporary Differences (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2021	Dec. 29, 2020	Dec. 31, 2019
Deferred tax assets:
Staff member benefits	$ 36,295	$ 33,419
Insurance reserves	12,897	11,460
Operating lease liability	315,403	319,274
Deferred income	33,075	31,119
Tax credit carryforwards	34,871	37,107
Goodwill	19,103	15,632
Stock-based compensation	10,122	9,937
State and foreign net operating loss carryforwards	3,005	3,536
Derivative asset		1,409
Other	1,063	1,466
Subtotal	465,834	464,359
Less: Valuation allowance	(1,036)	(1,041)
Total	464,798	463,318
Deferred tax liabilities:
Property and equipment	(109,019)	(124,634)
Prepaid expenses	(7,312)	(7,027)
Inventory	(7,802)	(7,766)
Accrued rent	(5,087)	(4,947)
Operating lease assets	(277,220)	(280,845)
Other	(724)	(214)
Total	(407,164)	(425,433)
Net deferred tax liability		37,885
Net deferred tax asset/(liability)	57,634
Reconciliation of beginning and ending amount of our uncertain tax positions
Balance at beginning of year	655	704	$ 830
Additions related to prior year tax positions	4,157
Additions related to current period tax positions	13	49	13
Reductions related to settlements with taxing authorities and lapses of statutes of limitations			(139)
Balance at end of year	4,799	655	$ 704
Accrued interest and penalties related with uncertain tax positions	3,600	300
Decrease in uncertain tax positions during the next twelve months based on the lapses of statutes of limitations for certain jurisdictions	1,800
Tax credit carryforwards	1,700	1,900
Tax credit carryforward valuation allowance	1,000
State
Reconciliation of beginning and ending amount of our uncertain tax positions
Tax credit carryforwards	64,600	79,500
Foreign
Deferred tax assets:
Tax credit carryforwards	2,700
Federal
Reconciliation of beginning and ending amount of our uncertain tax positions
Tax credit carryforwards	$ 33,600	$ 35,600