v3.26.3
DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Fair Values of Derivative Instruments (Details)
$ in Thousands
Sep. 30, 2026
USD ($)
instrument
Dec. 31, 2025
USD ($)
instrument
Derivatives designated as hedging instruments:    
Derivative [Line Items]    
Notional $ 2,400,000 $ 2,200,000
Derivative asset 1,489 24,209
Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Notional 10,357,279 9,362,961
Total derivatives 653 $ 19,644
Interest rate options | Derivatives designated as hedging instruments:    
Derivative [Line Items]    
Count | instrument   25
Notional   $ 2,200,000
Derivative asset $ 9,586 24,209
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Other assets, net of allowance for credit losses of $2,639 at September 30, 2026 and $2,848 at December 31, 2025  
Derivative liability $ (8,097)  
Derivative Liability, Statement of Financial Position [Extensible Enumeration] Other liabilities  
Interest rate options | Derivatives designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Count | instrument 23  
Notional $ 2,100,000  
Interest rate options | Derivatives designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Count | instrument 3  
Notional $ 300,000  
Interest rate options | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative asset 193,207 119,699
Derivative liability (193,217) (119,706)
Interest rate options | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Notional 3,679,777 3,316,973
Interest rate options | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Notional 3,679,777 3,298,973
Interest rate lock commitments with Clients | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative asset 550 824
Derivative liability (107) (1)
Interest rate lock commitments with Clients | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Notional 27,871 54,789
Interest rate lock commitments with Clients | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Notional 8,495 448
Forward sale commitments | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative asset 431 5
Derivative liability (36) (118)
Forward sale commitments | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Notional 23,942 3,225
Forward sale commitments | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Notional 18,690 56,179
FX forwards | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative asset 96 688
Derivative liability (80) (607)
FX forwards | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Notional 3,818 22,120
FX forwards | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Notional 3,614 22,490
Risk participation agreements sold | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative liability (28) (122)
Risk participation agreements sold | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Notional 102,206 115,059
Risk participation agreements purchased | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative asset 7 80
Risk participation agreements purchased | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Notional 383,018 219,617
Financial derivatives related to sales of certain Visa Class B shares | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative liability (1,659) (5,307)
Financial derivatives related to sales of certain Visa Class B shares | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Notional $ 26,071 $ 53,088