COMMODITY DERIVATIVE FINANCIAL INSTRUMENTS - Summary of Fair Value and Classification of Derivative Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Derivatives Fair Value [Line Items]
Gross fair value, assets	$ 0	$ 0
Effect of counterparty netting, assets	0	0
Total net carrying value on balance sheet, assets	0	0
Gross fair value, liabilities	142,321	53,545
Effect of counterparty netting, liabilities	0	0
Total net carrying value on balance sheet, liabilities	142,321	53,545
Commodity derivative assets
Derivatives Fair Value [Line Items]
Gross fair value, assets	0	0
Effect of counterparty netting, assets	0	0
Total net carrying value on balance sheet, assets	0	0
Deferred charges and other long-term assets
Derivatives Fair Value [Line Items]
Gross fair value, assets	0	0
Effect of counterparty netting, assets	0	0
Total net carrying value on balance sheet, assets	0	0
Commodity derivative liabilities
Derivatives Fair Value [Line Items]
Gross fair value, liabilities	138,028	51,544
Effect of counterparty netting, liabilities	0	0
Total net carrying value on balance sheet, liabilities	138,028	51,544
Commodity derivative liabilities
Derivatives Fair Value [Line Items]
Gross fair value, liabilities	4,293	2,001
Effect of counterparty netting, liabilities	0	0
Total net carrying value on balance sheet, liabilities	$ 4,293	$ 2,001

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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