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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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Represents the number of restaurants impaired.

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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

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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.

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