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Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 25, 2013	Dec. 26, 2012
Goodwill [Roll Forward]
Balance, beginning of year	$ 31,451,000us-gaap_Goodwill	$ 31,430,000us-gaap_Goodwill
Additions related to acquisitions	0us-gaap_GoodwillAcquiredDuringPeriod	28,000us-gaap_GoodwillAcquiredDuringPeriod
Write-offs and reclassification associated with sale of restaurants	0us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit	(7,000)us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit
Balance, end of year	31,451,000us-gaap_Goodwill	31,451,000us-gaap_Goodwill	31,430,000us-gaap_Goodwill
Other Intangible Assets [Line Items]
Intangible assets	68,414,000us-gaap_IntangibleAssetsGrossExcludingGoodwill	77,286,000us-gaap_IntangibleAssetsGrossExcludingGoodwill
Intangible assets with indefinite lives [Abstract]
Gross carrying amount - Trade names	44,065,000us-gaap_IndefiniteLivedTradeNames	44,055,000us-gaap_IndefiniteLivedTradeNames
Gross carrying amount - Liquor licenses	126,000us-gaap_IndefiniteLivedLicenseAgreements	126,000us-gaap_IndefiniteLivedLicenseAgreements
Intangible assets with definite lives [Abstract]
Accumulated amortization	22,136,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization	29,361,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Amortization expense of definite-lived intangible assets and other assets	2,100,000us-gaap_AmortizationOfIntangibleAssets	2,900,000us-gaap_AmortizationOfIntangibleAssets	3,200,000us-gaap_AmortizationOfIntangibleAssets
Franchise and license agreements [Member]
Intangible assets with definite lives [Abstract]
Gross carrying amount	22,366,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_FranchiseRightsMember	31,248,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_FranchiseRightsMember
Accumulated amortization	21,426,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_FranchiseRightsMember	29,007,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_FranchiseRightsMember
Decrease in franchise and license agreements	8,900,000us-gaap_FiniteLivedIntangibleAssetsPeriodIncreaseDecrease / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_FranchiseRightsMember
Reacquired franchise rights [Member]
Intangible assets with definite lives [Abstract]
Gross carrying amount	1,857,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember	1,857,000us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember
Accumulated amortization	$ 710,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember	$ 354,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_OtherIntangibleAssetsMember

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of increase (decrease) in carrying value of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the capitalized costs to acquire rights under a license arrangement (for example, to sell specified products in a specified territory) having an indefinite period of benefit.

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Amount before accumulated amortization of intangible assets, excluding goodwill.

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