Quarterly report pursuant to Section 13 or 15(d)

Servicing Assets - Additional Information (Detail)

v3.20.2
Servicing Assets - Additional Information (Detail) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]          
Serviced loans sold to unaffiliated parties $ 427,500,000   $ 427,500,000   $ 433,600,000
Amortization expense 524,000 $ 648,000 1,600,000 $ 2,300,000  
Operating Income          
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]          
Servicing fee income $ 1,100,000 $ 1,100,000 $ 3,400,000 $ 3,300,000