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MINERAL PROPERTIES AND PROPERTY, PLANT AND EQUIPMENT - Schedule of Summary of Mineral Properties (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Total mineral properties	$ 279,400	$ 119,581
Less: accumulated depletion	(1,070)	0
Mineral properties, net	278,330	119,581
Toliara Project
Property, Plant and Equipment [Line Items]
Total mineral properties	153,510	0
Sheep Mountain
Property, Plant and Equipment [Line Items]
Total mineral properties	34,183	34,183
Bahia Project
Property, Plant and Equipment [Line Items]
Total mineral properties	32,613	29,130
Nichols Ranch ISR Project
Property, Plant and Equipment [Line Items]
Total mineral properties	25,974	25,974
Roca Honda
Property, Plant and Equipment [Line Items]
Total mineral properties	22,095	22,095
Pinyon Plain
Property, Plant and Equipment [Line Items]
Total mineral properties	9,338	6,512
Other
Property, Plant and Equipment [Line Items]
Total mineral properties	$ 1,687	$ 1,687

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- Definition

The accumulated decrease in the carrying value of the mineral properties as a result of mine or mineral production.

+ References

No definition available.

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- Definition

Carrying amount at the balance sheet date of mineral properties, gross 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

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- Definition

Mineral properties, net of adjustments.

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-Section 50
-Paragraph 1
-SubTopic 10
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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

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