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NON-CONTROLLING INTERESTS (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Aug. 31, 2022 | Jun. 21, 2022 | Aug. 23, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2022
Noncontrolling Interest |  |  |  |  |  |
Non-controlling interests |  |  |  | $ 33,465 | $ 14,777 |
Issuance of equity by subsidiary (Note 20) |  |  |  | 41,350 | 40,000 |
Net loss attributed to non-controlling interests |  |  |  | (5,019) | (172) |
Noncontrolling Interest |  |  |  |  |  |
Noncontrolling Interest |  |  |  |  |  |
Non-controlling interests |  |  |  |  | 200 |
Issuance of equity by subsidiary (Note 20) |  |  |  | 23,707 | $ 14,949 |
Net loss attributed to non-controlling interests |  |  |  | $ 5,000 |  |
McEwen Copper | Noncontrolling Interest |  |  |  |  |  |
Noncontrolling Interest |  |  |  |  |  |
Company's non-redeemable non-controlling interests (as a percent) |  |  |  | 31.87% | 18.60% |
Series B Private Placement Offering - Tranche One |  |  |  |  |  |
Noncontrolling Interest |  |  |  |  |  |
Non-controlling interests |  |  |  |  | $ 14,900 |
Additional paid-in-capital |  |  |  |  | $ 25,100 |
Percentage of ownership by company before private placement |  | 81.40% | 100.00% |  |  |
Percentage decrease of stock owned by parent of subsidiary's or equity investee |  |  | 18.60% |  |  |
Percentage of ownership by company after private placement |  |  | 81.40% |  |  |
Series B Private Placement Offering - Tranche One | McEwen Copper |  |  |  |  |  |
Noncontrolling Interest |  |  |  |  |  |
Shares sold by the subsidiary |  |  | 4,000,000 |  |  |
Share price |  |  | $ 10.00 |  |  |
Gross proceeds from private placement offering |  |  | $ 40,000 |  |  |
Company's non-redeemable non-controlling interests (as a percent) |  |  | 18.60% |  |  |
Series B Private Placement Offering - Tranche One | McEwen Copper | Affiliate of Robert McEwen |  |  |  |  |  |
Noncontrolling Interest |  |  |  |  |  |
Percentage of ownership by noncontrolling shareholders |  |  | 18.60% |  | 18.60% |
Series B Private Placement Offering - Tranche Two |  |  |  |  |  |
Noncontrolling Interest |  |  |  |  |  |
Non-controlling interests |  |  |  | $ 7,600 |  |
Additional paid-in-capital |  |  |  | 7,400 |  |
Percentage of ownership by company before private placement | 76.09% |  |  |  |  |
Percentage decrease of stock owned by parent of subsidiary's or equity investee |  | 5.31% |  |  |  |
Percentage of ownership by company after private placement |  | 76.09% |  |  |  |
Series B Private Placement Offering - Tranche Two | McEwen Copper |  |  |  |  |  |
Noncontrolling Interest |  |  |  |  |  |
Shares sold by the subsidiary |  | 1,500,000 |  |  |  |
Share price |  | $ 10.00 |  |  |  |
Gross proceeds from private placement offering |  | $ 15,000 |  |  |  |
Company's non-redeemable non-controlling interests (as a percent) |  | 23.91% |  |  |  |
Series B Private Placement Offering - Tranche Two and Three | McEwen Copper | Affiliate of Robert McEwen |  |  |  |  |  |
Noncontrolling Interest |  |  |  |  |  |
Percentage of ownership by noncontrolling shareholders |  |  |  |  |  | 15.57%
Series B Private Placement Offering - Third and final Tranche |  |  |  |  |  |
Noncontrolling Interest |  |  |  |  |  |
Non-controlling interests |  |  |  | 16,100 |  |
Additional paid-in-capital |  |  |  | $ 10,800 |  |
Percentage decrease of stock owned by parent of subsidiary's or equity investee | 7.96% |  |  |  |  |
Percentage of ownership by company after private placement | 68.13% |  |  |  |  |
Series B Private Placement Offering - Third and final Tranche | McEwen Copper |  |  |  |  |  |
Noncontrolling Interest |  |  |  |  |  |
Shares sold by the subsidiary | 2,685,000 |  |  |  |  |
Share price | $ 10.00 |  |  |  |  |
Gross proceeds from private placement offering | $ 26,900 |  |  |  |  |
Company's non-redeemable non-controlling interests (as a percent) | 31.87% |  |  |  |  |

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