v3.26.1
DERIVATIVES - Additional Information (Details)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
USD ($)
entity
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
entity
Dec. 31, 2024
USD ($)
Derivative [Line Items]        
Derivative, Notional Amount $ 26,054,666   $ 22,586,161  
Number of counterparties | entity 7   7  
Derivative liabilities $ 462,845   $ 393,652  
Derivative Liability, Fair Value of Collateral, net of restricted cash 28,300   21,600  
Derivative Liability, Fair Value of Collateral 70,500   300  
Restricted Cash 9,700   10,200  
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax 43 $ 380 94 $ (1,176)
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net 700      
Client derivative fees 4,010 $ 1,571    
Other Receivables 37,000   45,000  
Derivative Asset, Fair Value of Collateral $ 32,400   $ 11,700  
Foreign Exchange        
Derivative [Line Items]        
Number of counterparties | entity 4   4  
Foreign Exchange | Derivative Financial Instruments Receive Variable Pay Fixed        
Derivative [Line Items]        
Derivative, Notional Amount $ 9,616,763      
Credit Risk Contract [Member]        
Derivative [Line Items]        
Derivative, Notional Amount 246,500   $ 223,500  
Interest Rate Lock Commitments [Member]        
Derivative [Line Items]        
Derivative, Notional Amount 61,500   37,500  
Other Credit Derivatives [Member]        
Derivative [Line Items]        
Derivative, Notional Amount 54,500   39,300  
Credit Risk Derivative Liabilities, at Fair Value 400   (700)  
Other Contract-Mortgage        
Derivative [Line Items]        
Derivative, Notional Amount $ 114,300   $ 111,500  
Commodity        
Derivative [Line Items]        
Number of counterparties | entity 6   6  
Commodity | Derivative Financial Instruments Receive Variable Pay Fixed        
Derivative [Line Items]        
Derivative, Notional Amount $ 51,767      
Derivative        
Derivative [Line Items]        
Derivative liabilities 31,300   $ 24,700  
Derivative | Foreign Exchange        
Derivative [Line Items]        
Derivative, Notional Amount     8,300,000  
Derivative liabilities 26,600   1,100  
Derivative | Commodity        
Derivative [Line Items]        
Derivative liabilities 3,300   400  
Accrued interest and other liabilities | Derivative        
Derivative [Line Items]        
Derivative, Notional Amount 2,800,000   $ 2,400,000  
Accrued interest and other liabilities | Derivative | Foreign Exchange        
Derivative [Line Items]        
Derivative, Notional Amount $ 9,600,000