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OPERATING SEGMENT REPORTING - Summary of Reportable Operating Segments (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales | $ 28,240 | $ 25,988 | $ 30,647 | $ 25,542 | $ 34,966 | $ 37,129 | $ 40,706 | $ 23,740 | $ 110,417 | $ 136,541 | $ 104,789
Depreciation and depletion |  |  |  |  |  |  |  |  | (19,701) | (23,798) | (22,910)
Gross profit (loss) | $ (288) | $ 1,503 | $ 4,235 | $ (5,994) | $ (5,897) | $ 344 | $ 4,059 | $ (4,986) | (544) | (6,480) | (26,948)
Advanced projects - Los Azules |  |  |  |  |  |  |  |  | (61,148) | (5,019) |
Advanced projects - Other |  |  |  |  |  |  |  |  | (5,580) | (7,420) | (11,681)
Impairment loss on mineral property interests and plant and equipment (Note 8) |  |  |  |  |  |  |  |  | 0 | 0 | (83,805)
Loss from investment in Minera Santa Cruz S.A. |  |  |  |  |  |  |  |  | 2,776 | (7,533) | (1,517)
Other operating |  |  |  |  |  |  |  |  |  |  | (1,968)
Loss before income and mining taxes |  |  |  |  |  |  |  |  | (80,288) | (64,199) | (153,715)
Capital expenditures |  |  |  |  |  |  |  |  | 26,234 | 36,033 | 13,925
United States Reportable Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 47,926 | 79,205 | 48,884
Depreciation and depletion |  |  |  |  |  |  |  |  | (4,737) | (8,502) | (11,785)
Gross profit (loss) |  |  |  |  |  |  |  |  | (311) | (3,287) | (21,366)
Advanced projects - Other |  |  |  |  |  |  |  |  | (52) | (440) | (1,071)
Impairment loss on mineral property interests and plant and equipment (Note 8) |  |  |  |  |  |  |  |  |  |  | (83,805)
Other operating |  |  |  |  |  |  |  |  |  |  | (1,390)
Segment income (loss) |  |  |  |  |  |  |  |  | (5,191) | (9,602) | (114,409)
Capital expenditures |  |  |  |  |  |  |  |  | 5,374 | 2,416 | 4,821
Canada |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 60,848 | 50,704 | 41,452
Depreciation and depletion |  |  |  |  |  |  |  |  | (14,964) | (15,296) | (10,883)
Gross profit (loss) |  |  |  |  |  |  |  |  | 9,039 | 2,447 | (4,070)
Advanced projects - Other |  |  |  |  |  |  |  |  | (1,206) | (2,635) | (6,088)
Other operating |  |  |  |  |  |  |  |  |  |  | (578)
Segment income (loss) |  |  |  |  |  |  |  |  | (1,610) | (15,205) | (17,186)
Capital expenditures |  |  |  |  |  |  |  |  | 15,317 | 33,617 | 9,104
Mexico Reportable Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 1,643 | 6,632 | 14,453
Depreciation and depletion |  |  |  |  |  |  |  |  |  |  | (242)
Gross profit (loss) |  |  |  |  |  |  |  |  | (9,272) | (5,640) | (1,512)
Advanced projects - Other |  |  |  |  |  |  |  |  | (4,322) | (4,345) | (4,522)
Segment income (loss) |  |  |  |  |  |  |  |  | (13,596) | (9,999) | (6,547)
Capital expenditures |  |  |  |  |  |  |  |  | 2,800 |  |
MSC |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Loss from investment in Minera Santa Cruz S.A. |  |  |  |  |  |  |  |  | 2,776 | (7,533) | (1,517)
Segment income (loss) |  |  |  |  |  |  |  |  | 2,776 | (7,533) | (1,517)
McEwen Copper |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Advanced projects - Other |  |  |  |  |  |  |  |  | (61,148) | (5,019) |
Segment income (loss) |  |  |  |  |  |  |  |  | (61,848) | (6,717) | (2,121)
Capital expenditures |  |  |  |  |  |  |  |  | 2,743 |  |
Total Segment |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 110,417 | 136,541 | 104,789
Depreciation and depletion |  |  |  |  |  |  |  |  | (19,701) | (23,798) | (22,910)
Gross profit (loss) |  |  |  |  |  |  |  |  | (544) | (6,480) | (26,948)
Advanced projects - Other |  |  |  |  |  |  |  |  | (66,728) | (12,439) | (11,681)
Loss from investment in Minera Santa Cruz S.A. |  |  |  |  |  |  |  |  | 2,776 | (7,533) | (1,517)
Segment income (loss) |  |  |  |  |  |  |  |  | (79,469) | (49,056) | (141,780)
General and Administrative and other |  |  |  |  |  |  |  |  | (819) | (15,143) | (11,935)
Gold and silver sales |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | 110,417 | 136,541 | 104,789
Product [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Production costs applicable to sales |  |  |  |  |  |  |  |  | (91,260) | (119,223) | (108,827)
Product [Member] | United States Reportable Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Production costs applicable to sales |  |  |  |  |  |  |  |  | (43,500) | (73,990) | (58,465)
Product [Member] | Canada |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Production costs applicable to sales |  |  |  |  |  |  |  |  | (36,845) | (32,961) | (34,639)
Product [Member] | Mexico Reportable Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Production costs applicable to sales |  |  |  |  |  |  |  |  | (10,915) | (12,272) | (15,723)
Product [Member] | Total Segment |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Production costs applicable to sales |  |  |  |  |  |  |  |  | (91,260) | (119,223) | (108,827)
Exploration | United States Reportable Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Production costs applicable to sales |  |  |  |  |  |  |  |  | (4,828) | (5,875) | (6,777)
Exploration | Canada |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Production costs applicable to sales |  |  |  |  |  |  |  |  | (9,443) | (15,017) | (6,450)
Exploration | Mexico Reportable Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Production costs applicable to sales |  |  |  |  |  |  |  |  | (2) | (14) | (513)
Exploration | McEwen Copper |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Production costs applicable to sales |  |  |  |  |  |  |  |  | (700) | (1,698) | (2,121)
Exploration | Total Segment |  |  |  |  |  |  |  |  |  |  |
Operating Segment Reporting |  |  |  |  |  |  |  |  |  |  |
Production costs applicable to sales |  |  |  |  |  |  |  |  | $ (14,973) | $ (22,604) | $ (15,861)

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