v3.26.1
DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Fair Values of Derivative Instruments (Details)
$ in Thousands
Jun. 30, 2026
USD ($)
instrument
Dec. 31, 2025
USD ($)
instrument
Derivatives designated as hedging instruments:    
Derivative [Line Items]    
Notional $ 2,450,000 $ 2,200,000
Derivative asset 11,632 24,209
Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Notional 10,265,711 9,362,961
Total derivatives 9,038 $ 19,644
Interest rate options | Derivatives designated as hedging instruments:    
Derivative [Line Items]    
Count | instrument   25
Notional 2,300,000 $ 2,200,000
Derivative asset $ 13,306 24,209
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Other assets, net of allowance for credit losses of $2,767 at June 30, 2026 and $2,848 at December 31, 2025  
Derivative liability $ (1,674)  
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 24  
Notional $ 2,150,000  
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 115,371 119,699
Derivative liability (115,377) (119,706)
Interest rate options | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Notional 3,642,833 3,316,973
Interest rate options | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Notional 3,592,906 3,298,973
Interest rate lock commitments with Clients | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative asset 710 824
Derivative liability (6) (1)
Interest rate lock commitments with Clients | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Notional 34,709 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 1,349 448
Forward sale commitments | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative asset 45 5
Derivative liability (83) (118)
Forward sale commitments | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Notional 25,416 3,225
Forward sale commitments | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Notional 33,866 56,179
FX forwards | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative asset 106 688
Derivative liability (119) (607)
FX forwards | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Notional 4,551 22,120
FX forwards | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Notional 6,922 22,490
Risk participation agreements sold | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative liability (99) (122)
Risk participation agreements sold | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherLiabilities    
Derivative [Line Items]    
Notional 113,014 115,059
Risk participation agreements purchased | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative asset 54 80
Risk participation agreements purchased | Derivatives not designated as hedging instruments: | Balance Sheet Location [Axis]: us-gaap:OtherAssets    
Derivative [Line Items]    
Notional 325,099 219,617
Financial derivatives related to sales of certain Visa Class B shares | Derivatives not designated as hedging instruments:    
Derivative [Line Items]    
Derivative liability (3,196) (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 $ 35,046 $ 53,088