Leases (Rental Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2022	Oct. 03, 2021	Sep. 27, 2020
Lessor, Lease, Description [Line Items]
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Revenues	Revenues
Amortization of favorable and unfavorable lease contracts, net	$ 1,120	$ 0	$ 0
Operating lease income - closed restaurants and other	6,407	6,027
Owned Properties
Lessor, Lease, Description [Line Items]
Operating lease income - closed restaurants and other	60	0
Leased Properties
Lessor, Lease, Description [Line Items]
Operating lease income - closed restaurants and other	6,347	6,027
Franchise contracts
Lessor, Lease, Description [Line Items]
Operating lease income - franchise	231,773	238,160
Variable lease income - franchise	108,420	108,474
Amortization of favorable and unfavorable lease contracts, net	198	0
Franchise rental revenues	340,391	346,634
Franchise contracts | Owned Properties
Lessor, Lease, Description [Line Items]
Operating lease income - franchise	19,221	20,132
Variable lease income - franchise	12,418	12,363
Amortization of favorable and unfavorable lease contracts, net	0	0
Franchise rental revenues	31,639	32,495
Franchise contracts | Leased Properties
Lessor, Lease, Description [Line Items]
Operating lease income - franchise	212,552	218,028
Variable lease income - franchise	96,002	96,111
Amortization of favorable and unfavorable lease contracts, net	198	0
Franchise rental revenues	$ 308,752	$ 314,139