Securities - Realized Gain (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Securities
Proceeds from sales of securities	$ 205,738	$ 30,981	$ 605,846
Gross realized gains on securities			270
Gross realized losses on securities	(4,148)	(944)	(38)
Net realized losses	(4,148)	(944)	232
Income tax benefit on net realized losses	$ 1,117	$ 265	$ (65)
Effective tax rate applied (as a percent)	26.90%	28.10%	28.00%