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Deferred Revenue (Narrative) (Details) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Jul. 15, 2024 $ / oz oz | Dec. 31, 2024 USD ($) $ / oz | Jul. 12, 2024 oz
Disclosure of performance obligations [line items] |  |  |
Average realized price per ounce | $ / oz |  | 1,950 |
Advanced consideration from gold sale prepayment agreement, net of transaction costs | $ |  | $ 111.1 |
Accretion expense | $ |  | 5.5 |
Forward contract |  |  |
Disclosure of performance obligations [line items] |  |  |
Average realized price per ounce | $ / oz | 2,524 |  |
Advanced consideration from gold sale prepayment agreement, net of transaction costs | $ |  | 116.0 |
Ounces subject to contract, settled | oz | 49,384 |  |
Accretion expense | $ |  | $ 2.1 |
Forward contract |  |  |
Disclosure of performance obligations [line items] |  |  |
Ounces subject to contract | oz |  |  | 329,417
Ounces subject to contract, settled | oz | 179,417 |  |
Argonaut Transaction | Forward contract |  |  |
Disclosure of performance obligations [line items] |  |  |
Ounces subject to contract | oz | 179,417 |  |
Average realized price per ounce | $ / oz | 1,838 |  |

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