Derivative Financial Instruments - Schedule of Customer-related derivative positions (Details) $ in Thousands	Sep. 30, 2024 USD ($) position	Dec. 31, 2023 USD ($) 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	506	356
Total Notional	$ 3,314,943	$ 2,405,835
Risk participation agreements | Not Designated as Hedging Instrument
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Number of Positions | position	125	78
Total Notional	$ 499,263	$ 323,957
Matched commercial customer book | Not Designated as Hedging Instrument
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Number of Positions | position	298	98
Total Notional	$ 79,680	$ 87,601
Foreign currency loan | Not Designated as Hedging Instrument
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Number of Positions | position	7	10
Total Notional	$ 7,732	$ 10,242