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FHLB and Other Borrowed Funds - Additional Information (Detail) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Borrowed Funds [Line Items]    
FHLB borrowed funds $ 600,000 $ 600,000
Other short term borrowings 750  
Other Borrowings   701,300
Federal reserve's bank term funding program 700,000  
Line of credit 1,220,000 $ 1,330,000
Short-term Federal Home Loan Bank Advances    
Borrowed Funds [Line Items]    
FHLB borrowed funds 100,000  
Long-term Federal Home Loan Bank Advances    
Borrowed Funds [Line Items]    
FHLB borrowed funds $ 500,000  
Minimum    
Borrowed Funds [Line Items]    
FHLB interest rate 3.37%  
Maximum    
Borrowed Funds [Line Items]    
FHLB interest rate 4.84%