v3.25.2
Loans (CECL) - Additional Information (Detail) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Geneva in 2019 and Ossian State Bank in 2021 [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accretable yield related to acquisition $ 1.0 $ 1.9