Annual report [Section 13 and 15(d), not S-K Item 405]

Servicing Assets - Additional Information (Detail)

v3.25.0.1
Servicing Assets - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Serviced loans sold to unaffiliated non government sponsored entity parties $ 560,100 $ 539,600  
Residential mortgage loans 37,000    
Servicing fee income $ 5,400 $ 5,200 $ 4,900
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
Amortization expense $ 2,749 $ 2,456 $ 2,672
Fair value of servicing rights $ 7,900 $ 7,700  
Minimum      
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Discount rates ranging 10.81% 14.40%  
Prepayment speeds 21.20% 12.20%  
Maximum      
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Discount rates ranging 27.26% 24.70%  
Prepayment speeds 15.44% 19.70%