FAIR VALUE MEASUREMENTS - Summary of the Valuation of the Company's Financial Assets and Liabilities that were Accounted for at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets (Liabilities)
Total	$ (89,907)	$ (14,878)
Fair value on a recurring basis
Assets (Liabilities)
Contingent consideration related to business combination	(16,029)	(8,203)
Total	(105,936)	(23,081)
Fair value on a recurring basis \| Oil derivatives and basis swaps
Assets (Liabilities)
Derivative liability	(59,726)	(14,727)
Fair value on a recurring basis \| Natural gas derivatives
Assets (Liabilities)
Derivative liability	(30,181)	(151)
Fair value on a recurring basis \| Level 1
Assets (Liabilities)
Contingent consideration related to business combination	0	0
Total	0	0
Fair value on a recurring basis \| Level 1 \| Oil derivatives and basis swaps
Assets (Liabilities)
Derivative liability	0	0
Fair value on a recurring basis \| Level 1 \| Natural gas derivatives
Assets (Liabilities)
Derivative liability	0	0
Fair value on a recurring basis \| Level 2
Assets (Liabilities)
Contingent consideration related to business combination	0	0
Total	(89,907)	(14,878)
Fair value on a recurring basis \| Level 2 \| Oil derivatives and basis swaps
Assets (Liabilities)
Derivative liability	(59,726)	(14,727)
Fair value on a recurring basis \| Level 2 \| Natural gas derivatives
Assets (Liabilities)
Derivative liability	(30,181)	(151)
Fair value on a recurring basis \| Level 3
Assets (Liabilities)
Contingent consideration related to business combination	(16,029)	(8,203)
Total	(16,029)	(8,203)
Fair value on a recurring basis \| Level 3 \| Oil derivatives and basis swaps
Assets (Liabilities)
Derivative liability	0	0
Fair value on a recurring basis \| Level 3 \| Natural gas derivatives
Assets (Liabilities)
Derivative liability	$ 0	$ 0

The amount, measured at acquisition-date fair value, of all liabilities assumed that arise from contingencies and were recognized by the entity.

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