Net Income Per Common Share - Basic and Diluted Net Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Basic
Net income applicable to common stock	$ 46,567	$ 40,063	$ 119,792	$ 138,838
Average common shares outstanding (shares)	55,947,214	56,146,285	55,888,226	56,237,056
Net income per common share - basic (usd per share)	$ 0.83	$ 0.71	$ 2.14	$ 2.47
Diluted
Net income applicable to common stock	$ 46,567	$ 40,063	$ 119,792	$ 138,838
Average common shares outstanding (shares)	55,947,214	56,146,285	55,888,226	56,237,056
Effect of dilutive stock-based compensation (shares)	301,506	300,899	281,660	296,038
Average common shares outstanding - diluted (shares)	56,248,720	56,447,184	56,169,886	56,533,094
Net income per common share - diluted (usd per share)	$ 0.83	$ 0.71	$ 2.13	$ 2.46