Derivative Financial Instruments - Schedule of Customer-related derivative positions (Details) $ in Thousands	Mar. 31, 2025 USD ($) position	Dec. 31, 2024 USD ($) position
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Total Notional	$ 2,400,000	$ 2,400,000
Interest rate swaps | Not Designated as Hedging Instrument
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Number of Positions | position	504	494
Total Notional	$ 3,294,619	$ 3,308,037
Risk participation agreements | Not Designated as Hedging Instrument
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Number of Positions | position	124	125
Total Notional	$ 472,503	$ 503,803
Matched commercial customer book | Not Designated as Hedging Instrument
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Number of Positions | position	244	226
Total Notional	$ 85,892	$ 98,429
Foreign currency loan | Not Designated as Hedging Instrument
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Number of Positions | position	5	8
Total Notional	$ 5,998	$ 5,835