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Long-term Debt - Gold Notes Narrative (Details) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 USD ($) oz $ / Ounce $ / Unit | Dec. 31, 2023 USD ($) oz | Dec. 31, 2022 USD ($)
Disclosure of detailed information about borrowings [line items] |  |  |
Amount of Gold held in trust (in ounces) | oz | 880 | 880 |
Gold in trust | $ 1,704 | $ 1,704 | $ 907
Gold Notes |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Principal value | $ 43,800 |  |
Gold notes, price per unit | $ / Unit | 1.00 |  |
Borrowings, term | 7 years |  |
Borrowings, interest rate | 7.50% |  |
Covenant required floor price (USD per ounce) | $ / Ounce | 1,400 |  |

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