Leases (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2022 USD ($) lease property restaurant	Jun. 30, 2021 USD ($) restaurant	Jun. 29, 2022 USD ($) item restaurant lease	Jun. 30, 2021 USD ($) restaurant
Lessee, Lease, Description [Line Items]
Initial lease term	20 years		20 years
Number of renewable options | item			4
Renewal term	5 years		5 years
Lessee, Operating Lease, Existence of Option to Extend [true false]			true
Number of Restaurants with lease modification | restaurant		5		12
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 8,485	$ 11,260
Impairment of Right-of-Use Assets		$ 344	$ 0	407
Texas
Lessee, Lease, Description [Line Items]
Operating Lease, Impairment Loss				$ 400
California
Lessee, Lease, Description [Line Items]
Number of restaurants primarily responsible for impairment | restaurant	1	3	1	3
Lease Not Yet Commenced [Member]
Lessee, Lease, Description [Line Items]
Number Of Leases | lease			3
Property Lease [Member]
Lessee, Lease, Description [Line Items]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 8,485	$ 11,260
Property Lease [Member] | Texas
Lessee, Lease, Description [Line Items]
Number of restaurants primarily responsible for impairment | restaurant				1
Property Lease [Member] | California
Lessee, Lease, Description [Line Items]
Number of restaurants primarily responsible for impairment | restaurant				1
Equipment Lease [Member]
Lessee, Lease, Description [Line Items]
Number Of Finance Leases | lease	10		10
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 0
Property lease modification [Member]
Lessee, Lease, Description [Line Items]
Number of Restaurants with lease modification | restaurant	9		13
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 6,000	$ 6,500	$ 8,500	$ 11,200
Number of properties impacted on original lease classification | property	1
Original impact of original lease classification	$ 700
Facility Leases [Member]
Lessee, Lease, Description [Line Items]
Number Of Finance Leases | lease	1		1