Earnings per Share - Basic and Diluted Per Share Calculations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings per share
Net income (loss)	$ (9,232)	$ 5,019
Net income attributable to noncontrolling interest	(16)	298
Net total and comprehensive income(loss) attributable to controlling interest	$ (9,216)	$ 4,721
Basic weighted average of outstanding shares of common stock (in shares)	49,217	48,394
Dilutive effect of equity awards (in shares)		997
Diluted weighted average of outstanding shares of common stock (in shares)	49,217	49,391
Basic earnings (loss) per share (in dollars per share)	$ (0.19)	$ 0.10
Diluted earnings (loss) per share (in dollars per share)	$ (0.19)	$ 0.10