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EQUITY INVESTMENTS - Changes in Company's Investment (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Change in the investment in MSC |  |  |
Income tax recovery | $ (33,859) | $ (5,806) | $ 7,315
Dividend distribution received | (295) | (286) | (9,832)
Investment, end of year | 326,147 |  |
McEwen Copper |  |  |
Change in the investment in MSC |  |  |
Deconsolidation | 383,968 |  |
Attributable net (loss) income | (57,821) |  |
Investment, end of year | 326,147 |  |
Minera Santa Cruz S.A. |  |  |
Change in the investment in MSC |  |  |
Investment, beginning of year | 93,451 | 90,961 |
Attributable net (loss) income | 4,157 | 6,303 | 132
Amortization of fair value increments | (4,612) | (4,155) | (8,331)
Income tax recovery | 517 | 628 | 666
Investment, end of year | $ 93,218 | $ 93,451 | $ 90,961

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