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Fair Value of Financial Instruments (Qualitative information for assets and liabilities) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Minimum [Member]      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Constant prepayment rate 18.81% 9.02% 8.49%
Maximum [Member]      
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]      
Constant prepayment rate 4.47% 4.30% 3.94%
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 $ 50,779    
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 4.47%    
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 18.81%    
Discount rate 15.00%    
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 $ 33,645    
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 14.20%    
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 42.20%    
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 $ 27,483    
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 4.75%    
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 10.25%    
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 $ 29,909    
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 14.20%    
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 47.20%    
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 $ 3,327    
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 29.00%    
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 71.00%