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Servicing Assets (Sensitivity of current fair value of servicing assets) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Servicing Assets At Fair Value Line Items  
Servicing Asset $ 13,992us-gaap_ServicingAsset
Constant Prepayment Rate - Decrease in fair value due to 10% adverse change (414)us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInPrepaymentSpeed
Constant Prepayment Rate - Decrease in fair value due to 20% adverse change (807)us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInPrepaymentSpeed
Discount Rate - Decrease in fair value due to 10% adverse change (643)us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf10PercentAdverseChangeInDiscountRate
Discount Rate - Decrease in fair value due to 20% adverse change $ (1,234)us-gaap_SensitivityAnalysisOfFairValueOfInterestsContinuedToBeHeldByTransferorServicingAssetsOrLiabilitiesImpactOf20PercentAdverseChangeInDiscountRate