Derivative Financial Instruments - Derivative Financial Instruments, their Fair Values, and Balance Sheet Location (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Derivatives Fair Value [Line Items]
Asset Derivatives	$ 125,683	$ 161,473
Liability Derivatives	132,325	154,058
Interest Rate Swap Agreements
Derivatives Fair Value [Line Items]
Asset Derivatives	125,625	161,430
Liability Derivatives	132,310	154,055
Interest Rate Swap Agreements | Derivatives designated as hedging instruments
Derivatives Fair Value [Line Items]
Asset Derivatives	5,604	14,507
Liability Derivatives	12,177	7,039
Interest Rate Swap Agreements | Derivatives not designated as hedging instruments
Derivatives Fair Value [Line Items]
Asset Derivatives	120,021	146,923
Liability Derivatives	120,133	147,016
Interest Rate Lock Commitments | Derivatives not designated as hedging instruments
Derivatives Fair Value [Line Items]
Asset Derivatives	58	34
Liability Derivatives	0	0
Forward Commitments | Derivatives not designated as hedging instruments
Derivatives Fair Value [Line Items]
Asset Derivatives	0	9
Liability Derivatives	$ 15	$ 3