Supplemental Consolidated Financial Statement Information (Schedule of Supplemental Consolidated Balance Sheet Information) (Details) - USD ($) $ in Thousands	Oct. 03, 2021	Sep. 27, 2020
Supplemental Consolidated Financial Statement Information [Abstract]
Trade	$ 75,273	$ 77,082
Notes receivable, current portion	1,467	1,193
Income tax receivable	1,157	1,591
Other	2,730	4,092
Allowance for doubtful accounts	(6,292)	(5,541)
Accounts and other receivables, net	74,335	78,417
Company-owned life insurance policies	123,566	113,767
Deferred rent receivable	46,234	48,604
Franchise tenant improvement allowances	34,124	29,437
Notes receivable, less current portion	4,544	1,851
Other	15,970	16,964
Other assets, net	224,438	210,623
Payroll and related taxes	34,649	34,475
Sales and property taxes	23,174	22,038
Insurance	21,218	25,310
Deferred rent income	17,892	1,687
Accrued advertising costs	13,097	9,861
Deferred franchise fees	4,824	4,934
Other	33,563	31,126
Accrued liabilities	148,417	129,431
Defined benefit pension plans	70,354	120,811
Deferred franchise fees	35,608	38,607
Other	50,380	47,076
Other long-term liabilities	$ 156,342	$ 206,494