Derivative Financial Instruments - Derivative Financial Instruments, their Fair Values, and Balance Sheet Location (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Derivatives Fair Value [Line Items]
Asset Derivatives	$ 210,734	$ 47,717
Liability Derivatives	202,397	168,037
Derivatives designated as hedging instruments | Interest Rate Swap Agreements
Derivatives Fair Value [Line Items]
Asset Derivatives	8,216	0
Liability Derivatives	0	0
Derivatives not designated as hedging instruments | Interest Rate Lock Commitments
Derivatives Fair Value [Line Items]
Asset Derivatives	142	64
Liability Derivatives	29	6
Derivatives not designated as hedging instruments | Forward Commitments
Derivatives Fair Value [Line Items]
Asset Derivatives	71	10
Liability Derivatives	3	4
Derivatives not designated as hedging instruments | Interest Rate Swap Agreements
Derivatives Fair Value [Line Items]
Asset Derivatives	202,305	45,831
Liability Derivatives	202,365	167,960
Derivatives not designated as hedging instruments | Foreign Exchange Contracts
Derivatives Fair Value [Line Items]
Asset Derivatives	0	1,812
Liability Derivatives	$ 0	$ 67