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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognized (Details) | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2022 USD ($) product | Dec. 31, 2021 USD ($) | Mar. 31, 2021 USD ($)
Accounting Policies [Abstract] |  |  |
Number of primary products | product | 2 |  |
Contract cash settlement max days | 25 days |  |
Contract cancellable notice term | 30 days |  |
Oil and gas sales | $ 198,261,000 | $ 217,149,000 |
Allowance for doubtful accounts | $ 0 |  | $ 0

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