Summary Of Refranchisings, Franchisee Development And Acquisitions (Purchase Price Allocations On Franchise Acquisitions) (Details) (USD $)	3 Months Ended		6 Months Ended
	Apr. 14, 2013	Apr. 15, 2012	Apr. 14, 2013	Apr. 15, 2012
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Number of Restaurants Sold to Franchisees	4	37	4	37
Proceeds from Divestiture of Businesses	$ 2,033,000	$ 20,715,000	$ 2,866,000	$ 21,964,000
Proceeds From Extension Of Franchise And Lease Agreements	200,000	900,000	1,000,000	2,100,000
Assets, Written off Related to Sale of Business Unit	1,635,000	5,754,000	1,720,000	5,833,000
Goodwill, Written off Related to Sale of Business Unit	67,000	604,000	67,000	652,000
Disposal Group Not Discontinued Operation Other Gain Loss On Disposal	0	279,000	0	279,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	(2,418,000)	14,078,000	(1,670,000)	15,200,000
Number of New Restaurants Opened by Franchisees	9	9	29	29
Qdoba [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Restaurants acquired from franchisees			12	36
Property and equipment	2,632,000	9,559,000	2,632,000	9,559,000
Reacquired franchise rights	106,000	461,000	106,000	461,000
Liabilities assumed	(281,000)	(108,000)	(281,000)	(108,000)
Goodwill	7,207,000	29,283,000	7,207,000	29,283,000
Total consideration	9,664,000	39,195,000	9,664,000	39,195,000
Jack In Box [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Restaurants acquired from franchisees			1
Property and equipment	145,000		145,000
Reacquired franchise rights	34,000		34,000
Liabilities assumed	(2,000)		(2,000)
Goodwill	1,173,000		1,173,000
Total consideration	1,350,000		1,350,000
Consolidated Entities [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Restaurants acquired from franchisees			13
Property and equipment	2,777,000		2,777,000
Reacquired franchise rights	140,000		140,000
Liabilities assumed	(283,000)		(283,000)
Goodwill	8,380,000		8,380,000
Total consideration	11,014,000		11,014,000
Loss on anticipated sale [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	(2,749,000)	0	(2,749,000)	0
Total gain (loss) on the sale of company-operated restaurants [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	(2,418,000)	14,078,000	(1,670,000)	15,200,000
Subtotal of gains (losses) on sale of company-operated restaurants [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 331,000	$ 14,078,000	$ 1,079,000	$ 15,200,000