Annual report pursuant to Section 13 and 15(d)

Acquisitions of Red Robin Franchised Restaurants (Details 2)

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Acquisitions of Red Robin Franchised Restaurants (Details 2) (USD $)
In Thousands, unless otherwise specified
Dec. 28, 2014
Dec. 29, 2013
Dec. 30, 2012
Jul. 14, 2014
Business Acquisition [Line Items]        
Goodwill $ 84,115us-gaap_Goodwill $ 62,525us-gaap_Goodwill $ 62,525us-gaap_Goodwill  
Series of business acquisitions, 2014        
Business Acquisition [Line Items]        
Property, plant and equipment       14,157us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= rrgb_SeriesofBusinessAcquisitions2014Member
Intangible assets       9,394us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= rrgb_SeriesofBusinessAcquisitions2014Member
Goodwill       22,953us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= rrgb_SeriesofBusinessAcquisitions2014Member
Inventory       2,088us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
/ us-gaap_BusinessAcquisitionAxis
= rrgb_SeriesofBusinessAcquisitions2014Member
Deferred Tax Assets       2,249rrgb_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeferredTaxAssets
/ us-gaap_BusinessAcquisitionAxis
= rrgb_SeriesofBusinessAcquisitions2014Member
Deferred Tax Liabilities       (1,161)rrgb_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeferredTaxLiabilities
/ us-gaap_BusinessAcquisitionAxis
= rrgb_SeriesofBusinessAcquisitions2014Member
Other current and non-current assets       737rrgb_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets
/ us-gaap_BusinessAcquisitionAxis
= rrgb_SeriesofBusinessAcquisitions2014Member
Other current and non-current liabilities       (2,906)rrgb_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities
/ us-gaap_BusinessAcquisitionAxis
= rrgb_SeriesofBusinessAcquisitions2014Member
Total purchase price       $ 47,511us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= rrgb_SeriesofBusinessAcquisitions2014Member