PROPERTY, PLANT, AND EQUIPMENT, NET - Schedule of Property, Plant, and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 2,337,879	$ 2,345,724
Less: accumulated depreciation	(549,657)	(528,178)
Property, plant and equipment, net	1,788,222	1,817,546
Gathering and processing systems and related equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,215,053	2,213,501
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	51,071	60,443
Land and line fill
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	10,440	10,440
Other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 61,315	$ 61,340