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Goodwill And Intangible Assets, Net (Changes In Carrying Amount Of Goodwill) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Oct. 02, 2016 | Sep. 27, 2015 | Sep. 28, 2014
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | $ 149,027 | $ 149,074 |
Acquisition of franchised restaurants | 17,034 |  |
Sale of company-operated restaurants to franchisees | (15) | (47) |
Goodwill, ending balance | 166,046 | 149,027 | $ 149,074
Jack in the box brand restaurant operations [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | 48,430 | 48,477 |
Acquisition of franchised restaurants | 0 | 0 | 256
Sale of company-operated restaurants to franchisees | (15) | (47) | (170)
Goodwill, ending balance | 48,415 | 48,430 | 48,477
Qdoba brand restaurant operations [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Goodwill, beginning balance | 100,597 | 100,597 |
Acquisition of franchised restaurants | 17,034 |  |
Sale of company-operated restaurants to franchisees | 0 | 0 |
Goodwill, ending balance | $ 117,631 | $ 100,597 | $ 100,597

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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