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Fair Value of Financial Instruments (Reconciliation of Assets and Liabilities Using Significant Unobservable Inputs (Level 3)) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Changes in fair value of servicing assets   $ 0 $ 0  
Fair Value, Measurements, Recurring [Member] | Servicing Assets [Member]        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance at beginning period $ 47,911,000 49,287,000 47,295,000 $ 50,779,000
New instruments acquired 2,023,000 124,000 3,443,000 580,000
Principal repayments (1,862,000) (678,000) (3,369,000) (1,445,000)
Changes in fair value of servicing assets (360,000) (807,000) 343,000 (1,988,000)
Balance at end of period $ 47,712,000 $ 47,926,000 $ 47,712,000 $ 47,926,000