Earnings Per Common Share - Schedule of computation of earnings per common share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net income per share calculations for basic and diluted methods
Net income	$ 36,786	$ 28,439
Weighted Average Shares Outstanding
Weighted average number of common shares outstanding, basic (in shares)	55,397,989	55,427,696
Weighted average number of common shares outstanding, diluted (in shares)	56,179,606	56,194,946
Basic earnings per common share (in dollars per share)	$ 0.66	$ 0.51
Diluted earnings per common share (in dollars per share)	$ 0.65	$ 0.51
Options
Weighted Average Shares Outstanding
Dilutive effect of common stock equivalents (in shares)	0	4,568
Warrants
Weighted Average Shares Outstanding
Dilutive effect of common stock equivalents (in shares)	1,296	1,855
RSU Awards
Weighted Average Shares Outstanding
Dilutive effect of common stock equivalents (in shares)	651,777	703,574
PSU Awards
Weighted Average Shares Outstanding
Dilutive effect of common stock equivalents (in shares)	90,645	16,378
DSU Awards
Weighted Average Shares Outstanding
Dilutive effect of common stock equivalents (in shares)	24,345	29,373
ESPP
Weighted Average Shares Outstanding
Dilutive effect of common stock equivalents (in shares)	13,554	11,502