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PROPERTY, PLANT AND EQUIPMENT AND MINERAL PROPERTIES - Schedule of Summary of Mineral Properties (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Property, Plant and Equipment [Line Items] |  |
Mineral properties | $ 119,581 | $ 83,539
Sheep Mountain |  |
Property, Plant and Equipment [Line Items] |  |
Mineral properties | 34,183 | 34,183
Bahia Project |  |
Property, Plant and Equipment [Line Items] |  |
Mineral properties | 29,130 | 0
Nichols Ranch ISR Project |  |
Property, Plant and Equipment [Line Items] |  |
Mineral properties | 25,974 | 25,974
Roca Honda |  |
Property, Plant and Equipment [Line Items] |  |
Mineral properties | 22,095 | 22,095
Pinyon Plain |  |
Property, Plant and Equipment [Line Items] |  |
Mineral properties | 6,512 | 0
Other |  |
Property, Plant and Equipment [Line Items] |  |
Mineral properties | $ 1,687 | $ 1,287

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- Definition Mineral properties, net of adjustments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482099/360-10-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 932 -SubTopic 360 -Name Accounting Standards Codification -Section 25 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482479/932-360-25-7 + Details
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