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v3.25.3

REVENUE - Narrative (Details) - Concentrate Metal Sales Agreement oz in Millions, lb in Millions, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) $ / pound $ / ounce | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) lb oz $ / pound $ / ounce | Sep. 30, 2024 USD ($)
Disaggregation of Revenue [Line Items] |  |  |  |
Embedded derivative, increase of value | $ | $ 3.5 | $ 3.2 | $ 7.1 | $ 6.4
Silver |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Notional ounce/pound | oz |  |  | 5.3 |
Average price per ounce/pound (in dollars per ounce/pound) | $ / ounce | 38.28 |  | 38.28 |
Lead |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Notional ounce/pound | lb |  |  | 25.2 |
Average price per ounce/pound (in dollars per ounce/pound) | $ / pound | 0.89 |  | 0.89 |
Zinc |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Notional ounce/pound | lb |  |  | 1.9 |
Average price per ounce/pound (in dollars per ounce/pound) | $ / pound | 1.23 |  | 1.23 |

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