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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jan. 19, 2022 | Mar. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Jan. 01, 2023 | Oct. 31, 2022
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |
Abandonment funding payment approved |  | $ 26,600 |  |  |  |  |
Abandonment funding payment approved, attributable to company |  | 15,600 |  |  |  |  |
Payment received for abandonment |  | $ 15,600 |  |  |  |  |
Value added tax receivable |  |  | $ 6,400 | $ 1,600 |  |  |
Retained earnings |  |  | 209,761 | 177,486 |  |  |
Credit (recovery) losses and other |  |  | 6,304 | (4,906) | $ 3,082 |  |
Foreign currency transactions loss |  |  | 1,800 | 900 | $ 4,200 |  |
Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |
Retained earnings |  |  |  |  |  | $ 3,100 |
Credit (recovery) losses and other |  |  | 7,700 | (12,400) |  |  |
TransGlobe |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |
Development term (in years) | 15 years |  |  |  |  |  |
Extension term (in years) | 5 years |  |  |  |  |  |
Other receivables |  |  | 33,200 |  |  |  | $ 67,500
Svenska Petroleum Exploration Aktiebolag |  |  |  |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |  |  |  |
Restricted cash, noncurrent |  |  | $ 8,900 | $ 8,900 |  |  |

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