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MINERAL PROPERTIES AND PROPERTY, PLANT AND EQUIPMENT - Schedule of Summary of Mineral Properties (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Property, Plant and Equipment [Line Items] |  |  |  |  |
Mineral properties, net | $ 293,832 |  | $ 293,832 |  | $ 278,330
Mineral Properties, Gross | 296,714 |  | 296,714 |  | 279,400
Mineral Properties, Accumulated Depletion | (2,882) |  | (2,882) |  | (1,070)
Depreciation | 1,250 | $ 620 | 2,430 | $ 1,290 |
Mineral Properties [Domain] |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Depreciation |  |  |  | $ 230 |
Sheep Mountain |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Mineral properties, net | 34,183 |  | 34,183 |  | 34,183
Bahia Project |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Mineral properties, net | 32,613 |  | 32,613 |  | 32,613
Nichols Ranch ISR Project |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Mineral properties, net | 25,974 |  | 25,974 |  | 25,974
Roca Honda |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Mineral properties, net | 22,095 |  | 22,095 |  | 22,095
Pinyon Plain |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Mineral properties, net | 9,338 |  | 9,338 |  | 9,338
Other |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Mineral properties, net | 1,687 |  | 1,687 |  | 1,687
Toliara Project |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Mineral Properties, Gross | $ 170,824 |  | $ 170,824 |  | $ 153,510

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- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A + Details
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