Leases (Details) $ in Thousands	12 Months Ended
	Dec. 29, 2021 USD ($) restaurant lease item	Dec. 30, 2020 USD ($) restaurant	Dec. 25, 2019 USD ($) restaurant
Lessee, Lease, Description [Line Items]
Property and equipment held under operating leases, net ("ROU asset") | $	$ 171,981	$ 177,129
Operating Lease, Liability | $	$ 191,610
Initial lease term	20 years
Number of renewable options | item	4
Renewal term	5 years
Lessee, Operating Lease, Existence of Option to Extend [true false]	true
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | $	$ 17,763	5,863	$ 10,595
Number of restaurants primarily responsible for impairment	2
Impairment of Right-of-Use Assets | $		$ 500	$ 3,200
Restaurants sold			4
Number of restaurants closed			1
Texas
Lessee, Lease, Description [Line Items]
Number of restaurants primarily responsible for impairment	1	1
Operating Lease, Impairment Loss | $	$ 400
Number of restaurants closed			2
California
Lessee, Lease, Description [Line Items]
Number of restaurants primarily responsible for impairment	1
Restaurants sold			4
Number of restaurants closed			2
Lease Not Yet Commenced [Member]
Lessee, Lease, Description [Line Items]
Number Of Leases | lease	2
Property Lease [Member]
Lessee, Lease, Description [Line Items]
Number Of Finance Leases	2
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | $	$ 17,763	$ 5,850	$ 10,339
Equipment Lease [Member]
Lessee, Lease, Description [Line Items]
Number Of Finance Leases | lease	9
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | $	$ 0	$ 13	$ 256
Property lease modification [Member]
Lessee, Lease, Description [Line Items]
Number of Restaurants with lease modification	22	12
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | $	$ 17,800	$ 3,900