Derivative Financial Instruments - Customer-Related Derivative Positions (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
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	356	382
Total Notional	$ 2,405,835	$ 2,404,003
Risk participation agreements | Not Designated as Hedging Instrument
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Number of Positions	78	63
Total Notional	$ 323,957	$ 241,029
Matched commercial customer book | Not Designated as Hedging Instrument
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Number of Positions	98	32
Total Notional	$ 87,601	$ 7,877
Foreign currency loan | Not Designated as Hedging Instrument
Disclosure Of Customer Related Derivatives Not Designated As Hedging [Line Items]
Number of Positions	10	5
Total Notional	$ 10,242	$ 13,948