Derivative Financial Instruments - Derivative Financial Instruments, their Fair Values, and Balance Sheet Location (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Derivatives Fair Value [Line Items]
Derivative asset	$ 108,223	$ 161,473
Derivative liabilities	120,147	154,058
Interest Rate Swap Agreements:
Derivatives Fair Value [Line Items]
Derivative asset	108,186	161,430
Derivative liabilities	120,139	154,055
Interest Rate Swap Agreements: | Derivatives designated as hedging instruments
Derivatives Fair Value [Line Items]
Derivative asset	1,898	14,507
Derivative liabilities	13,747	7,039
Interest Rate Swap Agreements: | Derivatives not designated as hedging instruments
Derivatives Fair Value [Line Items]
Derivative asset	106,288	146,923
Derivative liabilities	106,392	147,016
Interest Rate Lock Commitments | Derivatives not designated as hedging instruments
Derivatives Fair Value [Line Items]
Derivative asset	37	34
Derivative liabilities	0	0
Forward Commitments | Derivatives not designated as hedging instruments
Derivatives Fair Value [Line Items]
Derivative asset	0	9
Derivative liabilities	$ 8	$ 3