Supplemental Consolidated Cash Flow Information (Additional Information Related To Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 01, 2017	Oct. 02, 2016	Sep. 27, 2015
Supplemental Cash Flow Information [Abstract]
Income tax payments	$ 92,721	$ 33,454	$ 28,764
Interest, net of amounts capitalized	42,893	28,576	16,233
(Decrease) increase in obligations for purchases of property and equipment	(1,848)	(3,122)	5,388
(Decrease) increase in obligations for treasury stock repurchases	(7,208)	7,208	(3,112)
Consideration for franchise acquisitions	13,809	0	0
Decrease in equipment capital lease obligations from the sale of company-operated restaurants	5,631	0	0
Equipment capital lease obligations incurred	1,364	1,124	16,770
Increase in dividends accrued or converted to common stock equivalents	$ 308	$ 176	$ 174