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REVENUE - Narrative (Details) - Concentrate Metal Sales Agreement lb in Thousands, oz in Millions, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 USD ($) oz lb $ / Ounce $ / pound | Mar. 31, 2023 USD ($)
Disaggregation of Revenue [Line Items] |  |
Embedded derivative, increase (decrease) of value | $ | $ (2.5) | $ 7.5
Silver |  |
Disaggregation of Revenue [Line Items] |  |
Average price per ounce/pounds (in dollars per share) | oz | 4.5 |
Average price per ounce/pound | $ / Ounce | 23.57 |
Lead |  |
Disaggregation of Revenue [Line Items] |  |
Average price per ounce/pounds (in dollars per share) | lb | 21,810 |
Average price per ounce/pound | $ / pound | 0.95 |
Zinc |  |
Disaggregation of Revenue [Line Items] |  |
Average price per ounce/pounds (in dollars per share) | lb | 2,500 |
Average price per ounce/pound | $ / pound | 1.22 |

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