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EQUITY METHOD INVESTMENTS - Assets and Liabilities associated with McEwen Copper and MSC (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
EQUITY METHOD INVESTMENTS |  |
Current assets | $ 107,668 | $ 41,192
Total assets | 735,622 | 664,623
Current liabilities | (45,851) | (47,693)
Total liabilities | (251,143) | (169,648)
Difference in proportionate share of net assets | 199,700 |
McEwen Copper |  |
EQUITY METHOD INVESTMENTS |  |
Difference in proportionate share of net assets | 30,500 |
McEwen Copper |  |
EQUITY METHOD INVESTMENTS |  |
Current assets | 24,309 | 34,067
Total assets | 218,348 | 226,329
Current liabilities | (38,667) | (14,656)
Total liabilities | (38,816) | (14,856)
Minera Santa Cruz S.A. |  |
EQUITY METHOD INVESTMENTS |  |
Current assets | 145,140 | 144,327
Total assets | 238,634 | 233,003
Current liabilities | (54,346) | (57,373)
Total liabilities | $ (89,146) | $ (89,594)

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