Quarterly report [Sections 13 or 15(d)]

Servicing Assets - Additional Information (Detail)

v3.25.2
Servicing Assets - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]          
Serviced loans sold to unaffiliated parties $ 565,700   $ 565,700   $ 560,100
Servicing fee income $ 1,300 $ 1,400 $ 2,600 $ 2,700  
Contractually Specified Servicing Fee Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Noninterest Income, Other Operating Income Noninterest Income, Other Operating Income Noninterest Income, Other Operating Income Noninterest Income, Other Operating Income  
Amortization expense $ 700 $ 700 $ 1,372 $ 1,366  
Fair value of servicing rights 8,100   8,100   $ 7,900
Residential mortgage loans $ 33,400   $ 33,400    
Minimum          
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]          
Discount rates ranging     11.20%   10.80%
Prepayment speeds     9.90%   15.40%
Maximum          
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]          
Discount rates ranging     18.70%   27.30%
Prepayment speeds     27.70%   21.20%