Earnings per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net income available to common shareholders	$ 19,144	$ 48,274	$ 3,676
Weighted average common basic shares outstanding (for basic calculation) (in shares)	44,537,467	45,514,703	45,988,775
Dilutive effect of outstanding common stock options and RSUs (in shares)	860,027	500,631	447,664
Weighted average common dilutive shares outstanding (for diluted calculation) (in shares)	45,397,494	46,015,334	46,436,439
Net income per common share – basic (in dollars per share)	$ 0.43	$ 1.06	$ 0.08
Net income per common share – diluted (in dollars per share)	$ 0.42	$ 1.05	$ 0.08