Quarterly report pursuant to Section 13 or 15(d)

Servicing Assets - Additional Information (Detail)

v3.22.1
Servicing Assets - Additional Information (Detail) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Serviced loans sold to unaffiliated parties $ 483,600,000   $ 473,500,000
Amortization expense 545,000 $ 512,000  
Fair value of servicing rights $ 8,100,000   $ 8,100,000
Minimum      
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Discount rates ranging 9.00%   10.40%
Prepayment speeds 11.00%   10.20%
Maximum      
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Discount rates ranging 10.60%   16.70%
Prepayment speeds 16.90%   12.80%
Other Operating Income      
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Servicing fee income $ 1,200,000 $ 1,300,000