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Basis Of Presentation (Details)
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Apr. 14, 2013
restaurant
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Apr. 15, 2012
restaurant
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Jack In The Box [Member]
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| Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] | ||
| Number of restaurants | 2,256 | 2,242 |
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Qdoba [Member]
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| Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] | ||
| Number of restaurants | 647 | 605 |
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Company Operated [Member] | Jack In The Box [Member]
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| Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] | ||
| Number of restaurants | 546 | 601 |
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Company Operated [Member] | Qdoba [Member]
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| Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] | ||
| Number of restaurants | 340 | 289 |
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Franchised [Member] | Jack In The Box [Member]
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| Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] | ||
| Number of restaurants | 1,710 | 1,641 |
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Franchised [Member] | Qdoba [Member]
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| Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] | ||
| Number of restaurants | 307 | 316 |