v3.26.1
Derivative Financial Instruments - Schedule of Customer-related derivative positions (Details)
$ in Thousands
Mar. 31, 2026
USD ($)
position
Dec. 31, 2025
USD ($)
position
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]    
Total Notional $ 1,637,500 $ 1,937,500
Interest rate swaps | Not Designated as Hedging Instrument    
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]    
Number of Positions | position 632 628
Total Notional $ 4,784,385 $ 4,666,737
Risk participation agreements | Not Designated as Hedging Instrument    
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]    
Number of Positions | position 165 169
Total Notional $ 632,639 $ 632,464
Matched commercial customer book | Not Designated as Hedging Instrument    
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]    
Number of Positions | position 148 124
Total Notional $ 120,586 $ 85,353
Foreign currency loan | Not Designated as Hedging Instrument    
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]    
Number of Positions | position 3 3
Total Notional $ 2,981 $ 3,152