Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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+ Details

Related Party Transactions (Details) $ in Millions	3 Months Ended	12 Months Ended
Related Party Transactions (Details) $ in Millions	Dec. 29, 2020 restaurant	Dec. 28, 2021 USD ($) restaurant	Dec. 29, 2020 USD ($) restaurant	Dec. 31, 2019 USD ($) restaurant
Related Party Transactions
Number of restaurants acquired	2
Franchise
Related Party Transactions
Number of restaurants	97	101	97
Officers, directors and shareholders
Related Party Transactions
Number of restaurants	3	3	3	3
Officers, directors and shareholders \| Majority-owned
Related Party Transactions
Number of restaurants	1	1	1	1
Officers, directors and shareholders \| Franchise
Related Party Transactions
Fees received from franchise and license restaurants \| $		$ 1.7	$ 0.9	$ 0.7