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Summary Of Refranchisings, Franchisee Development And Acquisitions (Purchase Price Allocations On Franchise Acquisitions) (Details) $ in Thousands | 12 Months Ended
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Sep. 30, 2018 restaurant | Oct. 01, 2017 USD ($) restaurant | Oct. 02, 2016 restaurant
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items] |  |  |
Number of Restaurants | restaurant | 135 | 178 | 1
Restaurants acquired from franchisees (restaurants) |  | 50 | 1
Goodwill, Acquired During Period |  | $ 13,059 |
Property and equipment |  | (2,470) |
Noncash or Part Noncash Acquisition, Intangible Assets Acquired |  | 1,260 |
Noncash or Part Noncash Acquisition, Inventory Acquired |  | 189 |
Noncash or Part Noncash Acquisition, Value of Liabilities Assumed |  | (1,116) |
Business Combination, Consideration Transferred |  | 15,862 |
Noncash or Part Noncash Divestiture, Amount of Consideration Received |  | 13,800 |
Noncash or Part Noncash Acquisition, Payables Assumed |  | 3,900 |
Accounts Receivable [Member] |  |  |
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items] |  |  |
Noncash or Part Noncash Divestiture, Amount of Consideration Received |  | 9,900 |
Jack in the box brand restaurant operations [Member] |  |  |
Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items] |  |  |
Goodwill, Acquired During Period |  | $ 13,059 |

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- Definition Summary Of Refranchisings, Franchisee Development And Acquisitions [Line Items]. + References No definition available. + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=109124213&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109124213&loc=d3e6578-128477 + Details
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- Definition Amount of noncash consideration received for selling an asset or business through a noncash (or part noncash) transaction. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 + Details
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