Summary Of Refranchisings, Franchisee Development And Acquisitions (Number Of Restaurants Sold And Developed By Franchisees And Related Gains And Fees Recognized) (Details) (USD $)	3 Months Ended				9 Months Ended
	Jul. 08, 2012		Jul. 10, 2011		Jul. 08, 2012		Jul. 10, 2011
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Restaurants sold to franchisees	18		112		55		226
New restaurants opened by franchisees	7		12		36		40
Initial franchise fees	$ 933,000		$ 5,130,000		$ 3,423,000		$ 11,009,000
Proceeds from the sale of company-operated restaurants	7,289,000	[1]	27,327,000	[1]	29,253,000	[1]	76,915,000	[1]
Net assets sold (primarily property and equipment)	(2,586,000)		(16,372,000)		(8,419,000)		(36,244,000)
Goodwill related to the sale of company-operated restaurants	(199,000)		(556,000)		(851,000)		(1,522,000)
Other	(771,000)		(209,000)		(1,050,000)		(209,000)
Gains on the sale of company-operated restaurants	3,733,000	[1]	10,190,000	[1]	18,933,000	[1]	38,940,000	[1]
Additional proceeds from the sale of company-operated restaurants	$ 200,000				$ 2,300,000

[1] Amounts in 2012 include additional proceeds of $0.2 million in the quarter and $2.3 million year-to-date recognized upon the extension of the underlying franchise and lease agreements related to restaurants sold in a prior year.Franchise