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Commitments and Contingencies Narrative (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Guarantor Obligations [Line Items]    
Extensions of credit made by the Independent Lender to credit services customers rate 10.00%fcfs_ExtensionsOfCreditMadeByIndependentLenderToCreditServicesCustomersRate  
Letter of Credit expires after due date of the extension of credit 30 days  
Maximum loss exposure under outstanding letters of credit $ 11,907,000us-gaap_LettersOfCreditOutstandingAmount $ 13,992,000us-gaap_LettersOfCreditOutstandingAmount
Estimated Fair Value Liability For Outstanding Letters Of Credit 493,000fcfs_EstimatedFairValueLiabilityForOutstandingLettersOfCredit  
Variable Interest Entity, Not Primary Beneficiary    
Guarantor Obligations [Line Items]    
Net loans as a percentage of variable interest entity's total assets, maximum 50.00%fcfs_VariableInterestEntityNetLoansAsPercentageOfVariableInterestEntitysTotalAssetsMaximum
/ dei_LegalEntityAxis
= us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember		  
Minimum    
Guarantor Obligations [Line Items]    
Operating leases term 3 years  
Extensions of credit made by the Independent Lender to credit services customers amount range 50fcfs_ExtensionsOfCreditMadeByIndependentLenderToCreditServicesCustomersAmountRange
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		  
Extensions of credit made by the Independent Lender to credit services customers terms 7 days  
Maximum    
Guarantor Obligations [Line Items]    
Operating leases term 5 years  
Extensions of credit made by the Independent Lender to credit services customers amount range $ 1,500fcfs_ExtensionsOfCreditMadeByIndependentLenderToCreditServicesCustomersAmountRange
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		  
Extensions of credit made by the Independent Lender to credit services customers terms 180 days