Leases - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 26, 2023 USD ($) restaurant lease	Mar. 27, 2022 USD ($)
Lessee, Lease, Description [Line Items]
Sublease income	$ 2.9	$ 3.0
Number of domestic leases for which the Company is contingently liable | lease	52
Estimated maximum amount of undiscounted payments in the event of nonpayment by primary lessees	$ 8.7
Minimum
Lessee, Lease, Description [Line Items]
Initial term of franchise subleases	5 years
Maximum
Lessee, Lease, Description [Line Items]
Initial term of franchise subleases	10 years
United Kingdom franchise-owned restaurants
Lessee, Lease, Description [Line Items]
Number of units leased and subleased | restaurant	446
Initial lease terms on franchised sites	15 years