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Closure and Impairment Charges (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Impairment and Closure Charges [Line Items]      
Closure charges $ 2,100,000us-gaap_OtherRestructuringCosts $ 1,000,000us-gaap_OtherRestructuringCosts $ 2,300,000us-gaap_OtherRestructuringCosts
Long-lived tangible asset impairment 1,600,000us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf 800,000us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf 1,900,000us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
Total Impairment and closure charges $ 3,721,000us-gaap_RestructuringSettlementAndImpairmentProvisions $ 1,812,000us-gaap_RestructuringSettlementAndImpairmentProvisions $ 4,218,000us-gaap_RestructuringSettlementAndImpairmentProvisions
Applebee's      
Impairment and Closure Charges [Line Items]      
Company operated restaurants taken back to be refranchised   3din_CompanyOperatedRestaurantsTakenBackToBeRefranchised
/ din_RestaurantConceptAxis
= din_ApplebeesMember
 
IHOP      
Impairment and Closure Charges [Line Items]      
Company operated restaurants taken back and closed     1din_CompanyOperatedRestaurantsTakenBackandClosed
/ din_RestaurantConceptAxis
= din_IhopMember
Company operated restaurants taken back to be refranchised 2din_CompanyOperatedRestaurantsTakenBackToBeRefranchised
/ din_RestaurantConceptAxis
= din_IhopMember
  5din_CompanyOperatedRestaurantsTakenBackToBeRefranchised
/ din_RestaurantConceptAxis
= din_IhopMember