Derivative Financial Instruments - Free-Standing (Details) - Not designated as hedging instruments - Interest rate swaps - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Derivative financial instruments
Notional amounts	$ 2,528,376		$ 2,491,036
Positive fair value, derivative asset	5,956		4,818
Negative fair value, derivative liability	6,879		$ 5,990
Net interest expense	$ 0	$ 0
Minimum
Derivative financial instruments
Floating rates (as a percentage)	4.82%		4.87%
Fixed interest rates (as a percent)	2.39%		2.39%
Maximum
Derivative financial instruments
Floating rates (as a percentage)	9.00%		7.55%
Fixed interest rates (as a percent)	6.67%		6.67%
Customer swap program
Derivative financial instruments
Notional amounts	$ 2,500,000		$ 2,500,000
Positive fair value, derivative asset	6,000		4,800
Negative fair value, derivative liability	6,900		$ 6,000
Upfront fees on the dealer swap	$ 500	$ 0