Earnings (Loss) Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net (loss) income available to common shareholders	$ (1,922)	$ 10,471	$ 3,833	$ 14,790
Weighted average common shares outstanding (for basic calculation) (in shares)	44,465,183	46,180,161	44,597,504	46,201,842
Dilutive effect of outstanding common stock options and RSUs (in shares)	0	421,327	844,283	418,305
Weighted average common dilutive shares outstanding (for diluted calculation) (in shares)	44,465,183	46,601,488	45,441,787	46,620,147
Net income per common share – basic (in dollars per share)	$ (0.04)	$ 0.23	$ 0.09	$ 0.32
Net income per common share – diluted (in dollars per share)	$ (0.04)	$ 0.22	$ 0.08	$ 0.32