REVENUE FROM CONTRACTS WITH CUSTOMERS (Contract with Customer, Asset and Liability) (Details) - USD ($) $ in Thousands	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2020	Aug. 31, 2020	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Contract liability	$ 4,172		$ 1,788
Change in contract assets (liabilities)	(1,316)	$ (2,459)	(3,699)
Mid-Stream
Disaggregation of Revenue [Line Items]
Current contract assets	6,084		174
Non-current contract assets	173		0
Contract assets	6,257		174
Contract with Customer, Current Asset, Reclassified to Receivable			(5,910)
Contract with Customer, Non-current Asset, Reclassified to Receivable			(173)
Change in contract assets			(6,083)
Current Contract Liabilities	2,583		1,588
Non-current contract liabilities	1,589		200
Contract liability	4,172		1,788
Contract with Customer, Current Liability, Revenue Recognized			(995)
Contract with Customer, Non-current Liability, Revenue Recognized			(1,389)
Change in contract assets (liabilities)			(2,384)
Contract asset (liabilities), net	$ 2,085		(1,614)
Change in contract liabilities			$ (3,699)