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v3.24.0.1

OPERATING SEGMENT REPORTING - Geographic information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Non-current Assets | $ 604,578 |  |  |  | $ 447,066 |  |  |  | $ 604,578 | $ 447,066 |
Revenue | 58,680 | $ 38,404 | $ 34,395 | $ 34,752 | 28,240 | $ 25,988 | $ 30,647 | $ 25,542 | 166,231 | 110,417 | $ 136,541
Investment in MSC | 326,147 |  |  |  |  |  |  |  | 326,147 |  |
Minera Santa Cruz S.A. |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 254,926 | 254,698 | 271,863
Investment in MSC | 93,218 |  |  |  | 93,451 |  |  |  | 93,218 | 93,451 | 90,961
Asahi Refining Inc. |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 24,639 | 57,835 | 134,395
USA |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Non-current Assets | 71,234 |  |  |  | 70,577 |  |  |  | 71,234 | 70,577 |
Revenue |  |  |  |  |  |  |  |  | 83,409 | 47,926 | 79,205
Canada |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Non-current Assets | 83,674 |  |  |  | 91,552 |  |  |  | 83,674 | 91,552 |
Revenue |  |  |  |  |  |  |  |  | 81,295 | 60,848 | 50,704
Mexico |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Non-current Assets | 30,304 |  |  |  | 29,219 |  |  |  | 30,304 | 29,219 |
Revenue |  |  |  |  |  |  |  |  | 1,527 | 1,643 | $ 6,632
Argentina |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Non-current Assets | 419,366 |  |  |  | 255,718 |  |  |  | 419,366 | 255,718 |
Argentina | Minera Santa Cruz S.A. |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Investment in MSC | 93,200 |  |  |  | 93,500 |  |  |  | 93,200 | 93,500 |
Argentina | McEwen Copper Inc. |  |  |  |  |  |  |  |  |  |  |
Revenues from External Customers and Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |
Investment in MSC | $ 326,100 |  |  |  | $ 0 |  |  |  | $ 326,100 | $ 0 |

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