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Deposits - Additional Information (Detail) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Accrued interest payable on deposits $ 29.7 $ 34.8
Total deposits reclassified to loans due to overdrafts $ 1.8 $ 1.2