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Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 27, 2011 week m D restaurant	Dec. 28, 2010 week restaurant	Dec. 29, 2009 week
Principles of Consolidation
Number of minority ownership restaurants	366	345
Fiscal Year
Number of weeks in fiscal year	52	52	52
Cash and Cash Equivalents
Maximum term of original maturity to classify an instrument as cash equivalent (in months)	3
Receivables
Minimum number of days financing receivable are past due, for considering for individual evaluation (in days)	120
Minimum
Fiscal Year
Number of weeks in fiscal year	52
Number of weeks in fiscal year entity reports for quarterly reporting	13
Maximum
Fiscal Year
Number of weeks in fiscal year	53
Number of weeks in fiscal year entity reports for quarterly reporting	14
Unconsolidated restaurants
Principles of Consolidation
Number of minority ownership restaurants	22	21
Unconsolidated restaurants | Minimum
Principles of Consolidation
Ownership interest (as a percent)	5.00%
Unconsolidated restaurants | Maximum
Principles of Consolidation
Ownership interest (as a percent)	10.00%

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Represents the minimum number of days financing receivables are past due, for which individual evaluation will be done.

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Represents the number of weeks in the reporting entity's fiscal year.

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The number of weeks in the entity's fiscal quarter.

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Represents the number of restaurants.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 5A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6970148&loc=SL6759159-111685

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