Leases (Rental Income) (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 28, 2025	Sep. 29, 2024
Lessor, Lease, Description [Line Items]
Operating lease income - closed restaurants and other	$ 8,370	$ 7,693
Owned Properties
Lessor, Lease, Description [Line Items]
Operating lease income - closed restaurants and other	223	31
Leased Properties
Lessor, Lease, Description [Line Items]
Operating lease income - closed restaurants and other	8,147	7,662
Franchise contracts
Lessor, Lease, Description [Line Items]
Operating lease income - franchise	261,921	260,412
Variable lease income - franchise	105,355	113,425
Amortization of sublease assets and liabilities, net	1,367	1,591
Franchise rental revenues	368,643	375,428
Franchise contracts \| Owned Properties
Lessor, Lease, Description [Line Items]
Operating lease income - franchise	16,859	18,301
Variable lease income - franchise	12,467	12,522
Amortization of sublease assets and liabilities, net	$ 0	$ 0
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Revenues	Revenues
Franchise rental revenues	$ 29,326	$ 30,823
Franchise contracts \| Leased Properties
Lessor, Lease, Description [Line Items]
Operating lease income - franchise	245,062	242,111
Variable lease income - franchise	92,888	100,903
Amortization of sublease assets and liabilities, net	1,367	1,591
Franchise rental revenues	$ 339,317	$ 344,605

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Operating Lease Income, Closed Restaurants and Other

+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-3

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Indicates line item in statement of income or comprehensive income that includes operating lease income.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479016/842-30-45-3

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Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
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-URI https://asc.fasb.org/1943274/2147479773/842-30-50-5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
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-URI https://asc.fasb.org/1943274/2147482964/270-10-50-6A

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Amount of operating lease income from lease payments paid and payable to lessor. Excludes variable lease payments not included in measurement of lease receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
-SubTopic 10
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-Section 50
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-URI https://asc.fasb.org/1943274/2147482964/270-10-50-6A

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Amount of operating lease income from variable lease payments paid and payable to lessor, excluding amount included in measurement of lease receivable.

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