Annual report pursuant to Section 13 and 15(d)

Servicing Assets - Additional Information (Detail)

v3.24.0.1
Servicing Assets - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Serviced loans sold to unaffiliated parties $ 539.6 $ 523.6  
Servicing fee income $ 5.2 $ 4.9 $ 4.6
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
Fair value of servicing rights $ 7.7 $ 7.1  
Minimum      
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Discount rates ranging 14.40% 21.90%  
Prepayment speeds 12.20% 10.80%  
Maximum      
Risks Inherent In Servicing Assets And Servicing Liabilities [Line Items]      
Discount rates ranging 24.70% 25.30%  
Prepayment speeds 19.70% 16.70%