Summary Of Refranchisings, Franchisee Development And Acquisitions (Number Of Restaurants Sold And Developed By Franchisees And Related Gains And Fees Recognized) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 13, 2014 restaurant	Apr. 14, 2013 restaurant	Apr. 13, 2014 restaurant	Apr. 14, 2013 restaurant
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Significant Changes, Franchises Sold	14	4	14	4
New restaurants opened by franchisees	6	9	19	29
Initial franchise fees	$ 755	$ 389	$ 1,154	$ 1,035
Proceeds	(7,374)	(2,033)	(7,842)	(2,866)
Net assets sold (primarily property and equipment)	(2,240)	(1,635)	(2,240)	(1,720)
Goodwill related to the sale of company-operated restaurants	(120)	(67)	(129)	(67)
Disposal Group Not Discontinued Operation Other Gain Loss On Disposal	142	0	140	0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	(1,757)	2,418	(2,218)	1,670
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	(4,872)	(331)	(5,333)	(1,079)
Loss on anticipated sale [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	3,115	2,749	3,115	2,749
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	(1,757)	2,418		1,670
Jack In The Box [Member]
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]
Goodwill related to the sale of company-operated restaurants			129
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal			$ (2,218)