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Short-term Borrowings - Interest Expense on Short-Term Borrowings (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Interest On Short Term Borrowings [Line Items]      
Total interest on short-term borrowings $ 21,747 $ 1,999 $ 99
Federal funds purchased      
Interest On Short Term Borrowings [Line Items]      
Total interest on short-term borrowings 40 61 0
Borrowings from FHLB      
Interest On Short Term Borrowings [Line Items]      
Total interest on short-term borrowings 21,108 1,759 0
Securities sold under agreements to repurchase      
Interest On Short Term Borrowings [Line Items]      
Total interest on short-term borrowings $ 599 $ 179 $ 99