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EQUITY METHOD INVESTMENTS - Assets and Liabilities associated with McEwen Copper and MSC (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Equity Investments |  |
Current assets | $ 59,572 | $ 52,661
Total assets | 667,792 | 657,239
Current liabilities | (50,936) | (30,003)
Total liabilities | (165,688) | $ (154,819)
Minera Santa Cruz S.A. |  |
Equity Investments |  |
Difference in proportionate share of net assets | 69,300 |
McEwen Copper Inc. |  |
Equity Investments |  |
Difference in proportionate share of net assets | 207,500 |
McEwen Copper Inc. |  |
Equity Investments |  |
Current assets | 18,787 |
Total assets | 201,902 |
Current liabilities | (5,031) |
Total liabilities | (5,256) |
Minera Santa Cruz S.A. |  |
Equity Investments |  |
Current assets | 119,562 |
Total assets | 211,075 |
Current liabilities | (45,055) |
Total liabilities | $ (80,298) |

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