Quarterly report pursuant to Section 13 or 15(d)

Servicing Assets - Additional Information (Detail)

v3.23.1
Servicing Assets - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Serviced loans sold to unaffiliated parties $ 525,500   $ 523,600
Servicing fee income $ 1,300 $ 1,200  
Contractually Specified Servicing Fee Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Noninterest Income Other Operating Income Noninterest Income Other Operating Income  
Amortization expense $ 634 $ 544  
Fair value of servicing rights $ 8,600   $ 7,100
Minimum      
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Discount rates ranging 12.00%   21.90%
Prepayment speeds 10.90%   10.80%
Maximum      
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Discount rates ranging 13.90%   25.30%
Prepayment speeds 17.20%   16.70%