INCOME TAXES - Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
The impacts of the differences between the expected U.S. federal statutory income tax to our income tax expense
Expected tax at federal statutory rate									$ 44,154	$ 46,997	$ 20,871
State income tax, net of federal benefit									(5,878)	4	0
Non-deductible executive compensation									747	987	925
Noncontrolling Interest									(2,367)	0	0
Other									310	(1,506)	(122)
Impact of tax reform rate change									0	124,017	0
Change in valuation allowance									(233,039)	(170,495)	(21,579)
Income tax expense (benefit), net	$ (196,073)	$ 0	$ 0	$ 0	$ 4	$ 0	$ 0	$ 0	$ (196,073)	$ 4	$ 95