INCOME TAXES - Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
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									$ 48,908	$ 44,154	$ 46,997
State income tax, net of federal benefit									325	(5,878)	4
Non-deductible executive compensation									0	747	987
Noncontrolling Interest									(7,078)	(2,367)	0
Other									326	310	(1,506)
Impact of tax reform rate change									0	0	124,017
Change in valuation allowance									(579)	(233,039)	(170,495)
Income tax expense (benefit), net	$ 12,403	$ 10,558	$ 10,433	$ 8,508	$ (196,073)	$ 0	$ 0	$ 0	$ 41,902	$ (196,073)	$ 4