XML 83 R63.htm IDEA: XBRL DOCUMENT v2.4.1.9
Employee Benefit Plans (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Defined Contribution Pension Plan [Line Items]      
Contributions made to 401(k) $ 2.3din_DefinedContributionPlanContributionsMadeToBenefitPlan $ 2.3din_DefinedContributionPlanContributionsMadeToBenefitPlan $ 2.2din_DefinedContributionPlanContributionsMadeToBenefitPlan
First Tier of Deferral      
Defined Contribution Pension Plan [Line Items]      
Percent of gross pay 100.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ din_DefinedContributionPensionAndOtherPostretirementPlansAxis
= din_FirstTierOfEmployeesEligibleCompensationDeferralMember		    
Percent of eligible deferral 4.00%din_EmployeesEligibleCompensationDeferralPercent
/ din_DefinedContributionPensionAndOtherPostretirementPlansAxis
= din_FirstTierOfEmployeesEligibleCompensationDeferralMember		    
Second Tier of Deferral      
Defined Contribution Pension Plan [Line Items]      
Percent of gross pay 50.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
/ din_DefinedContributionPensionAndOtherPostretirementPlansAxis
= din_SecondTierOfEmployeesEligibleCompensationDeferralMember		    
Percent of eligible deferral 2.00%din_EmployeesEligibleCompensationDeferralPercent
/ din_DefinedContributionPensionAndOtherPostretirementPlansAxis
= din_SecondTierOfEmployeesEligibleCompensationDeferralMember