Supplemental Consolidated Balance Sheet Information (Details) - USD ($) $ in Thousands	Jan. 21, 2018	Oct. 01, 2017
Balance Sheet Related Disclosures [Abstract]
Trade	$ 31,688	$ 55,108
Notes receivable	766	988
Other	5,020	5,672
Allowance for doubtful accounts	(1,171)	(2,159)
Receivables, Net, Current	36,303	59,609
Prepaid income taxes	4,190	16,928
Prepaid rent	4,761	0
Other	7,472	10,604
Prepaid Expense, Current	16,423	27,532
Company-owned life insurance policies	109,791	110,057
Deferred tax assets	67,033	105,117
Deferred rent receivable	47,345	46,962
Other	19,725	15,434
Other assets, net	243,894	277,570
Insurance	37,095	39,011
Payroll and related taxes	24,390	23,361
Advertising	11,047	18,493
Deferred rent income	5,681	18,961
Sales and property taxes	3,242	7,275
Gift card liability	2,516	2,237
Deferred franchise fees	425	450
Other	18,470	25,266
Accrued liabilities	102,866	135,054
Defined benefit pension plans	104,798	107,011
Straight-line rent accrual	33,047	33,749
Other	97,549	108,065
Other Liabilities, Noncurrent	$ 235,394	$ 248,825