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EQUITY INVESTMENTS - A summary of the operating results of Minera Santa Cruz S.A. (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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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
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE |  |  |  |  |  |  |  |  |  |  |
Revenue from gold and silver sales | $ 58,680 | $ 38,404 | $ 34,395 | $ 34,752 | $ 28,240 | $ 25,988 | $ 30,647 | $ 25,542 | $ 166,231 | $ 110,417 | $ 136,541
Depreciation and depletion |  |  |  |  |  |  |  |  | (29,221) | (19,701) | (23,798)
Net income (loss) before tax |  |  |  |  |  |  |  |  | 67,036 | (80,288) | (64,199)
Net Income (Loss) | $ 138,453 | $ (18,451) | $ (21,627) | $ (43,076) | $ (37,364) | $ (9,976) | $ (14,409) | $ (19,326) | 55,299 | (81,075) | (56,712)
Income tax recovery |  |  |  |  |  |  |  |  | (33,859) | (5,806) | 7,315
Income (loss) from investment in MSC, net of amortization |  |  |  |  |  |  |  |  | $ (57,759) | $ 2,776 | $ (7,533)
Minera Santa Cruz S.A. |  |  |  |  |  |  |  |  |  |  |
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE |  |  |  |  |  |  |  |  |  |  |
Subsidiary (as a percent) |  |  |  |  |  |  |  |  | 100.00% | 100.00% | 100.00%
Revenue from gold and silver sales |  |  |  |  |  |  |  |  | $ 254,926 | $ 254,698 | $ 271,863
Production costs applicable to sales |  |  |  |  |  |  |  |  | (177,234) | (182,195) | (196,033)
Depreciation and depletion |  |  |  |  |  |  |  |  | (58,935) | (32,200) | (39,948)
Gross profit |  |  |  |  |  |  |  |  | 18,757 | 40,303 | 35,882
Exploration |  |  |  |  |  |  |  |  | (9,346) | (8,946) | (10,602)
Other expenses |  |  |  |  |  |  |  |  | (3,977) | (19,715) | (17,077)
Net income (loss) before tax |  |  |  |  |  |  |  |  | 5,434 | 11,642 | 8,203
Current and deferred tax recovery (expense) |  |  |  |  |  |  |  |  | 3,051 | 1,221 | (7,934)
Net Income (Loss) |  |  |  |  |  |  |  |  | $ 8,485 | $ 12,863 | $ 269
Subsidiary ownership interest (as a percent) | 49.00% |  |  |  | 49.00% |  |  |  | 49.00% | 49.00% | 49.00%
Net loss |  |  |  |  |  |  |  |  | $ 4,157 | $ 6,303 | $ 132
Amortization of fair value increments |  |  |  |  |  |  |  |  | (4,612) | (4,155) | (8,331)
Income tax recovery |  |  |  |  |  |  |  |  | 517 | 628 | 666
Income (loss) from investment in MSC, net of amortization |  |  |  |  |  |  |  |  | $ 62 | $ 2,776 | $ (7,533)

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