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RECLAMATION LIABILITIES - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Çöpler |  |
Segment Reporting Information [Line Items] |  |
Reclamation adjustments, changes in estimates | $ 3.8 | $ 4.7
Marigold |  |
Segment Reporting Information [Line Items] |  |
Reclamation adjustments, changes in estimates | 3.6 | 4.8
Seabee |  |
Segment Reporting Information [Line Items] |  |
Reclamation adjustments, changes in estimates | 12.5 |
Puna |  |
Segment Reporting Information [Line Items] |  |
Reclamation adjustments, changes in estimates | $ 12.9 | $ 5.6

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