Net Income Per Common Share - Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Basic
Net income applicable to common stock	$ 144,678	$ 166,068	$ 175,892
Average common shares outstanding (shares)	56,099,689	55,904,579	56,114,666
Net income per common share - basic (usd per share)	$ 2.58	$ 2.97	$ 3.13
Diluted
Net income applicable to common stock	$ 144,678	$ 166,068	$ 175,892
Average common shares outstanding (shares)	56,099,689	55,904,579	56,114,666
Effect of dilutive stock-based compensation (shares)	348,474	309,651	309,818
Average common shares outstanding - diluted (shares)	56,448,163	56,214,230	56,424,484
Net income per common share - diluted (usd per share)	$ 2.56	$ 2.95	$ 3.12