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REVENUE - Narrative (Details) - Foreign Tax Jurisdiction - Production Sharing Contract, September 17, 2018 Through September 16, 2028 - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
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Disaggregation of Revenue [Line Items] |  |
Foreign income tax payable | $ 0.4 | $ 1.7
Tax Administration of Gabon |  |
Disaggregation of Revenue [Line Items] |  |
Accrued income taxes | $ 23.4 | $ 40.0

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