PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	$ 207,270	$ 1,251,217
Less: accumulated depreciation and amortization	(1,468)	(24,320)
Total property, plant, and equipment, net	205,802	1,226,897
Gathering, processing, and transmission systems and facilities
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	198,133	729,585
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	5,443	521,609
Capitalized interest	600	6,900
Other property and equipment
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	$ 3,694	$ 23