PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	$ 208,870,000	$ 207,270,000
Less: accumulated depreciation and accretion	(13,034,000)	(1,468,000)
Total property, plant, and equipment, net(2)	195,836,000	205,802,000
Gathering, processing, and transmission systems and facilities
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	204,643,000	198,133,000
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	904,000	5,443,000
Capitalized interest	0	600,000
Other property and equipment
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	3,323,000	$ 3,694,000
Compressors Under Lease
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment, net(2)	$ 6,200,000