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Summary of Significant Accounting Policies (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Dec. 27, 2011 restaurant	Dec. 28, 2010 restaurant	Dec. 27, 2011 restaurant y	Dec. 28, 2010	Dec. 29, 2009
Property and Equipment
Repairs and maintenance expense			$ 12.6	$ 11.9	$ 11.1
Impairment of Goodwill
Number of restaurants impaired	1	4	1
Impairment or Disposal of Long-lived Assets
Impairment analysis, estimated useful life of operating a restaurant (in years)			20
Land improvements
Property and Equipment
Estimated useful life, low end of range (in years)			10
Estimated useful life, high end of range (in years)			25
Buildings and leasehold improvements
Property and Equipment
Estimated useful life, low end of range (in years)			10
Estimated useful life, high end of range (in years)			25
Equipment and smallwares
Property and Equipment
Estimated useful life, low end of range (in years)			3
Estimated useful life, high end of range (in years)			10
Furniture and fixtures
Property and Equipment
Estimated useful life, low end of range (in years)			3
Estimated useful life, high end of range (in years)			10

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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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The maximum useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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