SUPPLEMENTAL DISCLOSURES - Supplemental Disclosures of Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Condensed Cash Flow Statements, Captions [Line Items]
Cash paid for interest expense, net of amounts capitalized	$ 37,517	$ 38,387
Increase in liabilities for drilling, completion and equipping capital expenditures	16,072	6,813
Increase (decrease) in liabilities for acquisition of oil and natural gas properties	245	(2,344)
(Decrease) increase in liabilities for midstream properties capital expenditures	(7,634)	9,203
Stock-based compensation expense (benefit) recognized as a liability	15,489	(223)
Transfer of inventory to oil and natural gas properties	(636)	(335)
Mineral Properties
Condensed Cash Flow Statements, Captions [Line Items]
Increase in asset retirement obligations	395	1,393
Midstream Properties
Condensed Cash Flow Statements, Captions [Line Items]
Increase in asset retirement obligations	$ 0	$ 26