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Fair Value of Financial Instruments (Reconciliation of assets and liabilities using significant unobservable inputs (Level 3)) (Details) - Fair Value, Measurements, Recurring [Member] - Servicing Assets [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]      
Balance $ 10,716 $ 9,821 $ 9,858
New instruments acquired 41,637 1,481 1,658
Change due to principal payments (906) (814) (590)
Changes in fair value of servicing assets (668) 228 (1,105)
Balance $ 50,779 $ 10,716 $ 9,821