Related Party Transactions (Details) $ in Millions	3 Months Ended
	Mar. 26, 2024 USD ($) restaurant	Mar. 28, 2023 USD ($) restaurant
Franchise
Related Party Transactions
Number of restaurants	109	93
Officers, directors and shareholders | Majority-owned
Related Party Transactions
Number of restaurants	1	1
Officers, directors and shareholders | Franchise
Related Party Transactions
Number of restaurants	4	4
Royalities and fees received from franchise and license restaurants | $	$ 0.5	$ 0.5