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Borrowings (Additional Information) (Details) - USD ($)
$ in Thousands
3 Months Ended
May 31, 2027
Mar. 31, 2025
Dec. 31, 2024
Debt Instrument [Line Items]      
Customer repurchase agreements   $ 276,163 $ 261,887
Weighted average interest rates   1.24% 0.72%
Borrowing Rate   4.60%  
Federal Home Loan Bank Advances [Member]      
Debt Instrument [Line Items]      
Other Loans Payable Long Term   $ 500,000  
Loans pledged as collaterals   4,360,000  
Investment securities with carrying value   $ 4,690,000  
Federal Home Loan Bank Advances May Two Thousand Twenty Six [Member]      
Debt Instrument [Line Items]      
Borrowed funds cost percentage   4.73%  
Maturities of advances BTFP   $ 300,000  
Federal Home Loan Bank Advances May Two Thousand Twenty Seven [Member]      
Debt Instrument [Line Items]      
Borrowed funds cost percentage 4.27%    
Maturities of advances BTFP $ 200,000