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Fair Value of Financial Instruments (Qualitative information for assets and liabilities) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Servicing Assets [Member] | Cash Flow Valuation Technique [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Fair Value assets and liabilities measured on reccurring basis $ 10,716
Servicing Assets [Member] | Cash Flow Valuation Technique [Member] | Minimum [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Constant prepayment rate 4.30%
Discount rate 10.00%
Servicing Assets [Member] | Cash Flow Valuation Technique [Member] | Maximum [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Constant prepayment rate 9.02%
Discount rate 12.00%
Collateral dependant impaired loan | Fair value of property or collateral [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Fair Value assets and liabilities measured on reccurring basis $ 36,618
Collateral dependant impaired loan | Fair value of property or collateral [Member] | Minimum [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Appraised Value 17.20%
Collateral dependant impaired loan | Fair value of property or collateral [Member] | Maximum [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Appraised Value 36.20%
Other non-collateral dependant impaired loans [Member] | Cash Flow Valuation Technique [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Fair Value assets and liabilities measured on reccurring basis $ 45,358
Other non-collateral dependant impaired loans [Member] | Cash Flow Valuation Technique [Member] | Minimum [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Discount rate 4.25%
Other non-collateral dependant impaired loans [Member] | Cash Flow Valuation Technique [Member] | Maximum [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Discount rate 12.25%
Foreclosed real estate [Member] | Fair value of property or collateral [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Fair Value assets and liabilities measured on reccurring basis $ 33,768
Foreclosed real estate [Member] | Fair value of property or collateral [Member] | Minimum [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Appraised Value 17.20%
Foreclosed real estate [Member] | Fair value of property or collateral [Member] | Maximum [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Appraised Value 36.20%
Other repossessed assets [Member] | Fair value of property or collateral [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Fair Value assets and liabilities measured on reccurring basis $ 2,986
Other repossessed assets [Member] | Fair value of property or collateral [Member] | Minimum [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Estimated net realizable value 38.00%
Other repossessed assets [Member] | Fair value of property or collateral [Member] | Maximum [Member]  
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]  
Estimated net realizable value 62.00%