Supplemental Consolidated Cash Flow Information (Additional Information Related To Cash Flows) (Details) - USD ($) $ in Thousands		9 Months Ended	12 Months Ended
		Jul. 09, 2017	Sep. 30, 2018	Oct. 01, 2017	Oct. 02, 2016
Supplemental Cash Flow Information [Abstract]
Income tax payments			$ 56,183	$ 92,678	$ 33,406
Interest, net of amounts capitalized			43,692	33,857	21,107
Increase (decrease) in obligations for purchases of property and equipment			822	766	(1,412)
Increase in notes receivable from the sale of company operated restaurants		$ 200	1,400
Non-cash proceeds from divestiture of business	[1]		70,461	0	0
Franchise Tenant Improvement Allowances			5,551	1,659	216
Increase (decrease) in obligations for treasury stock repurchases			14,362	(7,208)	7,208
Increase in dividends accrued or converted to common stock equivalents			0	13,809	0
Decrease in equipment capital lease obligations from the sale of company-operated restaurants, closure of stores, and termination of equipment leases			(3,617)	(5,631)	0
Increase DecreaseIn Capital Lease Obligations, equipment			271	237	0
Equipment capital lease obligations incurred			98	924	273
Increase in dividends accrued or converted to common stock equivalents			$ 276	$ 308	$ 176

[1] (2)During 2018, we collected payments of $53.7 million related to notes due from franchisees in connection with refranchising transactions.