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Servicing Assets - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Accounts Notes And Loans Receivable [Line Items]    
Changes in fair value of servicing assets $ (3,064) $ (1,261)
Loan Servicing Revenue [Member]    
Accounts Notes And Loans Receivable [Line Items]    
Fair value of servicing assets $ 2,800 $ 2,500