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Summary of Significant Accounting Policies Restaurant Information by Ownership Type (Detail) | Dec. 31, 2021 Restaurant | Dec. 31, 2020 Restaurant | Dec. 31, 2019 Restaurant
--- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 40,031 | 39,198 | 38,695
Franchised restaurants: |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 37,295 | 36,521 | 36,059
Company-operated restaurants: |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 2,736 | 2,677 | 2,636
Conventional franchised | Franchised restaurants: |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 21,607 | 21,712 | 21,837
Developmental licensed | Franchised restaurants: |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 7,913 | 7,663 | 7,648
Affiliated | Franchised restaurants: |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Restaurants | 7,775 | 7,146 | 6,574

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- Definition Represents the number of restaurants. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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