Derivative Financial Instruments - Free-Standing (Details) - Not designated as hedging instruments - Interest rate derivatives - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Derivative financial instruments
Notional amounts	$ 2,432,133		$ 2,432,133		$ 2,491,036
Positive fair value, derivative asset	5,262		5,262		4,818
Negative fair value, derivative liability	6,014		6,014		$ 5,990
Net interest expense	$ 0	$ 0	$ 0	$ 0
Minimum
Derivative financial instruments
Floating rates (as a percentage)	4.82%		4.82%		4.87%
Fixed interest rates (as a percent)	2.39%		2.39%		2.39%
Maximum
Derivative financial instruments
Floating rates (as a percentage)	7.32%		7.32%		7.55%
Fixed interest rates (as a percent)	6.67%		6.67%		6.67%
Customer swap program
Derivative financial instruments
Notional amounts	$ 2,400,000		$ 2,400,000		$ 2,500,000
Positive fair value, derivative asset	5,300		5,300		4,800
Negative fair value, derivative liability	6,000		6,000		$ 6,000
Upfront fees on the dealer swap	$ 100	$ 600	$ 500	$ 600