REVENUE (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended							5 Months Ended	7 Months Ended	12 Months Ended
	Jun. 30, 2018	May 31, 2018	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Mar. 31, 2018	May 31, 2018	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jun. 01, 2018
Disaggregation of Revenue [Line Items]
Financial Designation, Predecessor and Successor [Fixed List]										Predecessor	Successor	Successor	Successor	Predecessor	Predecessor
Total revenues	$ 21,720	$ 43,089	$ 16,138	$ 23,249	$ 30,587	$ 43,846	$ 47,914	$ 68,966	$ 67,942	$ 111,031	$ 138,600	$ 113,820		$ 225,693
Receivables		$ 48,986	14,075				40,176			48,986	40,176	14,075	$ 40,176			$ 50,247
Allowance for doubtful accounts receivable			0				0				0	0	0
Wet Gas Products [Member]
Disaggregation of Revenue [Line Items]
Total revenues										8,400	13,400	4,400
Wet Gas Natural Gas [Member]
Disaggregation of Revenue [Line Items]
Total revenues										3,200	4,400	1,500
Wet Gas Natural Gas Liquids [Member]
Disaggregation of Revenue [Line Items]
Total revenues										$ 5,200	9,000	2,900
Accounts receivable
Disaggregation of Revenue [Line Items]
Receivables			$ 14,100				$ 38,300				$ 38,300	$ 14,100	$ 38,300