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Borrowings - Additional Information (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Debt Instrument    
FHLB advances maximum amount available $ 4,800,000 $ 4,700,000
Federal Home Loan Bank Advances And Letters Of Credit Amount Used 800,000 500,000
Assets sold under agreements to repurchase 56,043 54,833
Other short-term borrowings 550,000 225,000
Advances with FRB    
Debt Instrument    
Line Of Credit Facility Current Borrowing Capacity 10,800,000 7,000,000
Federal Home Loan Bank    
Debt Instrument    
Federal Home Loan Bank Advances And Letters Of Credit Amount Used   300,000
Other short-term borrowings $ 550,000 $ 225,000