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SUBSEQUENT EVENT (Details) - USD ($) $ in Millions | Jul. 12, 2024 | Jun. 30, 2024
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McEwen Copper Inc. |  |
Subsequent event |  |
Subsidiary ownership interest (as a percent) |  | 47.70%
Subsequent Events | Private placement |  |
Subsequent event |  |
Gross proceeds | $ 14.0 |
Number of shares purchased on commitment | 466,667 |
Subsequent Events | McEwen Copper Inc. |  |
Subsequent event |  |
Subsidiary ownership interest (as a percent) | 48.30% |
Subsequent Events | McEwen Copper Inc. | Private placement |  |
Subsequent event |  |
Gross proceeds | $ 5.0 |
Number of shares purchased on commitment | 166,667 |

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