Acquisitions - Narrative (Details) $ in Thousands		3 Months Ended		12 Months Ended
	Jun. 02, 2023 USD ($) restaurant	Dec. 31, 2023 USD ($)	Sep. 24, 2023 USD ($) restaurant	Dec. 31, 2023 USD ($) restaurant	Dec. 25, 2022 USD ($) restaurant
Business Acquisition [Line Items]
Number of stores acquired | restaurant					2
Goodwill acquired				$ 5,376	$ 1,161
UK franchisee acquisitions
Business Acquisition [Line Items]
Total consideration				15,200
Acquisition and transition costs				2,100
Noncash purchase consideration				13,700
Property and equipment, net acquired		$ 10,600		10,600
Inventories and other assets acquired		300		300
Goodwill acquired				$ 4,300
Drake food service international, M25 division
Business Acquisition [Line Items]
Number of stores acquired | restaurant	91
Total consideration	$ 13,700
Third quarter 2023 UK franchisee acquisition
Business Acquisition [Line Items]
Number of stores acquired | restaurant			27
Total consideration			$ 1,500
Domestic restaurant acquisitions
Business Acquisition [Line Items]
Number of stores acquired | restaurant				10
Total consideration				$ 4,100
Property and equipment, net acquired		1,600		1,600
Goodwill acquired				1,100
Measurement period adjustment to increase property and equipment		200
Domestic restaurant acquisitions | Franchise rights
Business Acquisition [Line Items]
Finite-lived intangible assets acquired		1,300		$ 1,300
Measurement period adjustment to decrease intangibles		$ 200