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Summary of Significant Accounting Policies (Details 2) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 25, 2012 restaurant | Dec. 27, 2011 restaurant | Dec. 25, 2012 restaurant | Dec. 27, 2011 | Dec. 28, 2010
Property and Equipment |  |  |  |  |
Repairs and maintenance expense |  |  | $ 13.8 | $ 12.6 | $ 11.9
Impairment of Goodwill |  |  |  |  |
Number of restaurants impaired | 1 | 1 | 1 |  |
Impairment or Disposal of Long-Lived Assets |  |  |  |  |
Impairment analysis, estimated useful life of operating a restaurant |  |  | 20 years |  |
Land improvements | Minimum |  |  |  |  |
Property and Equipment |  |  |  |  |
Estimated useful life |  |  | 10 years |  |
Land improvements | Maximum |  |  |  |  |
Property and Equipment |  |  |  |  |
Estimated useful life |  |  | 25 years |  |
Buildings and leasehold improvements | Minimum |  |  |  |  |
Property and Equipment |  |  |  |  |
Estimated useful life |  |  | 10 years |  |
Buildings and leasehold improvements | Maximum |  |  |  |  |
Property and Equipment |  |  |  |  |
Estimated useful life |  |  | 25 years |  |
Equipment and smallwares | Minimum |  |  |  |  |
Property and Equipment |  |  |  |  |
Estimated useful life |  |  | 3 years |  |
Equipment and smallwares | Maximum |  |  |  |  |
Property and Equipment |  |  |  |  |
Estimated useful life |  |  | 10 years |  |
Furniture and fixtures | Minimum |  |  |  |  |
Property and Equipment |  |  |  |  |
Estimated useful life |  |  | 3 years |  |
Furniture and fixtures | Maximum |  |  |  |  |
Property and Equipment |  |  |  |  |
Estimated useful life |  |  | 10 years |  |

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- Definition The aggregate costs of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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- Definition Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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