Impairment of Long-Lived Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2025	Dec. 29, 2024	Dec. 31, 2023
Impairment of Long-Lived Assets
Impairment of long-lived assets	$ 12,095	$ 9,713	$ 1,401
Company-operated restaurants
Impairment of Long-Lived Assets
Impairment of long-lived assets	8,631	9,073	1,316
Restaurants leased or subleased to franchisees
Impairment of Long-Lived Assets
Impairment of long-lived assets	2,352	0	0
Surplus properties
Impairment of Long-Lived Assets
Impairment of long-lived assets	$ 1,112	$ 640	$ 85