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Summary of Refranchisings and Franchise Acquisitions (Narrative) (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Oct. 02, 2022 USD ($) restaurant | Oct. 03, 2021 USD ($) restaurant | Sep. 27, 2020 USD ($) restaurant | Jan. 23, 2022 USD ($)
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items] |  |  |  |
Number of restaurants acquired from franchisees | restaurant | 13 | 20 | 8 |
Goodwill | $ 366,821 | $ 47,774 | $ 47,161 |
Revision of Prior Period, Adjustment |  |  |  |
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items] |  |  |  |
Goodwill |  |  |  | $ 300
Franchise Acquisitions |  |  |  |
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items] |  |  |  |
Receivables eliminated in acquisition accounting |  | 300 |  |
Goodwill | $ 0 | $ 613 | $ 414 |

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