Supplemental Consolidated Financial Statement Information (Schedule Of Supplemental Consolidated Balance Sheet Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Oct. 01, 2017
Supplemental Consolidated Financial Statement Information [Abstract]
Current Fiscal Year End Date	--09-30
Trade	$ 35,877	$ 55,108
Notes receivable	11,480	988
Income Taxes Receivable	5,637	3,273
Other	6,123	2,399
Allowances for doubtful accounts	(1,695)	(2,159)
Accounts and other receivables, net	57,422	59,609
Prepaid Advertising	4,318	5,407
Prepaid income taxes	4,837	16,928
Other Prepaid Expense, Current	5,288	5,197
Prepaid Expense, Current	14,443	27,532
Company-owned life insurance policies	109,908	110,057
Deferred Tax Asset	62,140	105,118
Deferred rent receivable	48,372	46,962
Other	40,986	15,433
Other assets, net	261,406	277,570
Payroll and related taxes	29,498	23,361
Insurance	35,405	39,011
Advertising	952	18,493
Deferred rent income	1,387	18,961
Sales and property taxes	4,555	7,275
Gift card liability	2,081	2,237
Deferred franchise fees	375	450
Other	32,669	25,266
Accrued liabilities	106,922	135,054
Defined benefit pension plans	69,012	107,011
Straight-line rent accrual	31,762	33,749
Other	193,449	248,825
Other long-term liabilities	$ 92,675	$ 108,065