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Nature of Operations and Summary of Significant Accounting Policies (Summary of Number of Restaurants) (Details) - restaurant | Sep. 27, 2020 | Sep. 29, 2019 | Sep. 30, 2018
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Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | 2,241 | 2,243 | 2,237
Company-operated |  |  |
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | 144 | 137 | 137
Franchise |  |  |
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | 2,097 | 2,106 | 2,100

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- Definition Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] + References No definition available. + Details
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- Definition Represents the number of restaurants. + References No definition available. + Details
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- Details
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- Details
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