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NATURE OF OPERATIONS AND BASIS OF PRESENTATION (Details)	9 Months Ended
	Sep. 30, 2025
Gold Bar
Nature of operations
Ownership interests in various mines (as a percent)	100.00%
Minera Santa Cruz S.A.
Nature of operations
Subsidiary ownership interest (as a percent)	49.00%
McEwen Copper
Nature of operations
Subsidiary ownership interest (as a percent)	46.40%

X

- Definition

The percentage of ownership of common stock or equity participation in the investees accounted for under the equity method of accounting.

+ References

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- Definition

The Company's ownership interests in various mines.

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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 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479402/808-10-50-1

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