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MINERAL PROPERTIES AND PROPERTY, PLANT AND EQUIPMENT (Narrative) (Details) $ in Millions, $ in Millions |  | 12 Months Ended
--- | --- | ---
Apr. 01, 2024 USD ($) | Apr. 01, 2024 AUD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Carrying value of right-of-use assets |  |  | $ 66.3 | $ 56.1
Depletion and depreciation, right-of-use |  |  | 15.0 | 13.9
Non Depletable [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Exploration and evaluation assets |  |  | 97.8 | 88.5
Property, plant and equipment [member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Depletion and depreciation, right-of-use |  |  | 15.5 | $ 16.2
Seguela Project [Member] |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |
Capitalized interest |  |  | $ 6.5 |
NSR royalty, percentage | 1.20% | 1.20% |  |
Half of NSR royalty purchase price, per agreement | $ 6.5 | $ 10 |  |

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- Definition The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 53 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of interest costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition, construction or production of a qualifying asset and which form part of the cost of that asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
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