Divestiture and Merger Pro Forma (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Combinations [Abstract]
Revenues	$ 110,398	$ 209,564	$ 207,140
Net Income (Loss) (1)	$ (45,629)	$ (95,725)	$ (69,733)
Net Income (Loss) per Common Share, Basic (in usd per share)	$ (0.22)	$ (0.46)	$ (0.33)
Net Income (Loss) per Common Share, Diluted (in usd per share)	$ (0.22)	$ (0.46)	$ (0.33)