Leases - Rental Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2021	Sep. 27, 2020
Lessor, Lease, Description [Line Items]
Operating lease income - closed restaurants and other	$ 6,027	$ 6,370
Owned Properties
Lessor, Lease, Description [Line Items]
Operating lease income - closed restaurants and other	0	0
Leased Properties
Lessor, Lease, Description [Line Items]
Operating lease income - closed restaurants and other	6,027	6,370
Franchise rental revenues
Lessor, Lease, Description [Line Items]
Operating lease income - franchise	238,160	235,800
Variable lease income - franchise	108,474	84,847
Operating Lease, Lease Income, Total	346,634	320,647
Franchise rental revenues | Owned Properties
Lessor, Lease, Description [Line Items]
Operating lease income - franchise	20,132	19,785
Variable lease income - franchise	12,363	9,960
Operating Lease, Lease Income, Total	32,495	29,745
Franchise rental revenues | Leased Properties
Lessor, Lease, Description [Line Items]
Operating lease income - franchise	218,028	216,015
Variable lease income - franchise	96,111	74,887
Operating Lease, Lease Income, Total	$ 314,139	$ 290,902