SUPPLEMENTAL DISCLOSURES - Summary of Current Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Condensed Balance Sheet Statements, Captions [Line Items]
Total accrued liabilities	$ 221,840	$ 253,283
Accrued evaluated and unproved and unevaluated property costs
Condensed Balance Sheet Statements, Captions [Line Items]
Total accrued liabilities	114,931	128,598
Accrued midstream properties costs
Condensed Balance Sheet Statements, Captions [Line Items]
Total accrued liabilities	14,897	7,799
Accrued lease operating expenses
Condensed Balance Sheet Statements, Captions [Line Items]
Total accrued liabilities	34,681	32,182
Accrued interest on debt
Condensed Balance Sheet Statements, Captions [Line Items]
Total accrued liabilities	2,764	18,232
Accrued asset retirement obligations
Condensed Balance Sheet Statements, Captions [Line Items]
Total accrued liabilities	282	270
Accrued partners’ share of joint interest charges
Condensed Balance Sheet Statements, Captions [Line Items]
Total accrued liabilities	28,810	17,460
Accrued payable related to purchased natural gas
Condensed Balance Sheet Statements, Captions [Line Items]
Total accrued liabilities	6,473	11,284
Other
Condensed Balance Sheet Statements, Captions [Line Items]
Total accrued liabilities	$ 19,002	$ 37,458