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Summary of Significant Accounting Policies (Principles of Consolidation) (Details) | Dec. 31, 2023 restaurant
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Minimum | Equity method investment |
Principles of Consolidation [Line Items] |
Equity method investment, ownership percentage | 20.00%
Maximum | Equity method investment |
Principles of Consolidation [Line Items] |
Equity method investment, ownership percentage | 50.00%
Franchised units |
Principles of Consolidation [Line Items] |
Number of restaurants | 291

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