Guarantees (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2024	Dec. 31, 2023
Guarantor Obligations [Line Items]
Derivative Liabilities	[1]	$ 38,546	$ 37,899
Notional amount of underlying interest rate swaps associated with risk participation agreements		5,133,408	$ 5,194,716
Financial Standby Letter Of Credit [Member]
Guarantor Obligations [Line Items]
Standby letters of credit, net liability		3,900
Contractual amount of letters of credit, guaranteed maximum potential future payments		634,500
Risk Participation Agreement [Member] | Indirect Guarantee Of Indebtedness [Member]
Guarantor Obligations [Line Items]
Derivative Liabilities		106
Notional amount of underlying interest rate swaps associated with risk participation agreements		$ 464,900
Minimum [Member] | Risk Participation Agreement [Member]
Guarantor Obligations [Line Items]
Term, in years		2 years
Maximum [Member] | Risk Participation Agreement [Member]
Guarantor Obligations [Line Items]
Term, in years		15 years

[1] * The fair value of each class of derivative is shown in Note 11.