Computation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income (loss) available to common shareholders	$ 8,684	$ (1,907)
Weighted average common shares outstanding - Basic (in shares)	40,043	39,658
Dilutive effect of stock-based awards (in shares)	431	0
Weighted average common shares outstanding - Diluted (in shares)	40,474	39,658
Earnings (loss) per common share - Basic (in dollars per share)	$ 0.22	$ (0.05)
Earnings (loss) per common share - Diluted (in dollars per share)	$ 0.21	$ (0.05)