SUPPLEMENTAL CONSOLIDATED BALANCE SHEET INFORMATION (Details) - USD ($) $ in Thousands	Apr. 17, 2022	Oct. 03, 2021	Apr. 11, 2021	Sep. 27, 2020
Property, Plant and Equipment [Line Items]
Trade	$ 49,972	$ 75,273
Notes receivable, current portion	1,363	1,467
Income tax receivable	907	1,157
Other	5,963	2,730
Allowance for doubtful accounts	(5,744)	(6,292)	$ (5,998)	$ (5,541)
Accounts and other receivables, net	52,461	74,335
Prepaid income taxes	8,942	651
Other	11,544	12,031
Prepaid expenses	20,486	12,682
Property and equipment, at cost	1,282,161	1,133,038
Less accumulated depreciation and amortization	(819,037)	(810,124)
Property and equipment, net	463,124	322,914
Company-owned life insurance policies	120,403	123,566
Deferred rent receivable	45,016	46,234
Franchise tenant improvement allowance	32,832	34,124
Notes receivable, less current portion	4,483	4,544
Other	22,013	15,970
Other assets, net	224,747	224,438
Payroll and related taxes	40,561	34,649
Insurance	32,918	21,218
Sales and property taxes	16,715	23,174
Deferred rent income	8,826	17,892
Advertising	4,004	13,097
Deferred franchise and development fees	5,304	4,949
Other	53,569	33,438
Accrued liabilities	161,897	148,417
Defined benefit pension plans	68,123	70,354
Deferred franchise fees, Noncurrent	41,793	36,571
Other	50,039	49,417
Other long-term liabilities	159,955	156,342
Land
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	103,222	105,393
Buildings
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	998,155	907,792
Restaurant and other equipment
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	164,953	112,959
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment, at cost	$ 15,831	$ 6,894