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)