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Loan Servicing - Summary of Activity In Mortgage Servicing Rights (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Transfers and Servicing [Abstract]        
Beginning Balance $ 292 $ 329 $ 305 $ 339
Additions     3  
Payoffs (2) (6) (6) (7)
Change in fair value due to change in assumptions (10) (2) (22) (11)
Ending Balance $ 280 $ 321 $ 280 $ 321