Leases (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2022 USD ($) lease restaurant	Sep. 29, 2021 USD ($) restaurant	Sep. 28, 2022 USD ($) restaurant lease item property	Sep. 29, 2021 USD ($) 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
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 10,572	$ 13,848
Impairment of Right-of-Use Assets	$ 39	$ 0	$ 39	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
California | Maximum
Lessee, Lease, Description [Line Items]
Operating Lease, Impairment Loss			$ 100
Lease Not Yet Commenced
Lessee, Lease, Description [Line Items]
Number Of Leases | lease	1		1
Property Lease
Lessee, Lease, Description [Line Items]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 10,486	$ 13,848
Property Lease | Texas
Lessee, Lease, Description [Line Items]
Number of restaurants primarily responsible for impairment | restaurant				1
Property Lease | California
Lessee, Lease, Description [Line Items]
Number of restaurants primarily responsible for impairment | restaurant			1	1
Equipment Lease
Lessee, Lease, Description [Line Items]
Number Of Finance Leases | lease	10		10
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 86
Property lease modification
Lessee, Lease, Description [Line Items]
Number of Restaurants with lease modification | restaurant	5	4	18	16
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 2,000	$ 2,600	$ 10,500	$ 13,800
Number of properties impacted on original lease classification | property			1
Original impact of original lease classification			$ 700
Facility Leases
Lessee, Lease, Description [Line Items]
Number Of Finance Leases | lease	1		1