v3.26.1
Loans (CECL) - Additional Information (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Perpetual Federal Savings Bank in 2021 and Peoples Federal Savings and Loan Bank in 2022    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accretable yield related to acquisition $ 0 $ 216