Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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