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v2.4.0.6

Summary of Significant Accounting Policies (Details 4) | Dec. 25, 2012 restaurant | Dec. 27, 2011 restaurant
--- | --- | ---
Segment Reporting |  |
Number of restaurants | 392 | 366
Company-owned |  |
Segment Reporting |  |
Number of restaurants | 320 | 294
Franchised or licensed |  |
Segment Reporting |  |
Number of restaurants | 72 | 72

X
- Details
Name: | us-gaap_FranchisorDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of restaurants. + References No definition available. + Details
Name: | us-gaap_NumberOfRestaurants
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant