CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)
Balance at Dec. 31, 2015	$ 120,895	$ 258	$ 398,033	$ (277,396)
Contributions from Sponsors, net	91,891	54	91,837
Equity based compensation	2,287		2,287
Net loss	(208,087)			(208,087)
Balance at Dec. 31, 2016	6,986	312	492,157	(485,483)
Equity based compensation	1,795		1,795
Net loss	(62,868)			(62,868)
Balance at Dec. 31, 2017	(54,087)	312	493,952	(548,351)
Cumulative effect adjustment	(325)			(325)
Sponsor Debt Exchange	102,000	29	101,971
Stone Combination	731,964	201	731,763
Equity based compensation	6,404		6,404
Net loss	221,540			221,540
Balance at Dec. 31, 2018	$ 1,007,496	$ 542	$ 1,334,090	$ (327,136)