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Nature of Operations and Summary of Significant Accounting Policies (Summary of Number of Restaurants) (Details) - restaurant | Sep. 29, 2019 | Sep. 30, 2018 | Oct. 01, 2017
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Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | 2,243 | 2,237 | 2,251
Company-operated |  |  |
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | 137 | 137 | 276
Franchise |  |  |
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | 2,106 | 2,100 | 1,975

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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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