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v3.23.1

Financial Instruments and Risk Management (Currency Contracts) (Details) oz in Thousands, $ in Millions, $ in Millions, $ in Millions | 2 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 23, 2023 $ / oz oz | Dec. 31, 2022 USD ($) $ / oz | Dec. 31, 2021 USD ($) $ / oz | Dec. 31, 2022 CAD ($) | Dec. 31, 2022 $ / $ | Dec. 31, 2022 MXN ($) | Dec. 31, 2022 $ / $
Contract Options |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Ounce of gold | oz | 12 |  |  |  |  |  |
Collars and Forwards |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Financial liabilities, at fair value | $ |  |  | $ 2.6 |  |  |  |
Gains (losses) on change in fair value of derivatives | $ |  | $ (1.1) | (3.8) |  |  |  |
Gold Options | Commodity price risk |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Financial assets, at fair value | $ |  |  | 0.5 |  |  |  |
Gains (losses) on change in fair value of derivatives | $ |  | $ (3.5) | $ (0.5) |  |  |  |
Gold Options | Commodity price risk | Contract Options | Maximum |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Average realized price per ounce | $ / oz | 2,163 |  |  |  |  |  |
Gold Options | Commodity price risk | Contract Options | Minimum |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Average realized price per ounce | $ / oz | 1,800 |  |  |  |  |  |
2018 | Gold Options | Commodity price risk | Purchase Put Options |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Average realized price per ounce | $ / oz |  | 1,755 |  |  |  |  |
2019 | Collars | Currency risk |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Notional amount |  |  |  | $ 558.0 |  | $ 1,020.0 |
2019 | Bought Puts | Currency risk |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Notional amount | $ |  |  |  | $ 30.0 |  |  |
Bottom of range | Gold Options | Market risk |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Average realized price per ounce | $ / oz |  |  | 1,629 |  |  |  |
Bottom of range | 2019 | Collars | Currency risk |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Average rate of hedging instrument |  |  |  |  | 129.00% |  | 2046.00%
Bottom of range | 2019 | Bought Puts | Currency risk |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Average rate of hedging instrument | $ / $ |  |  |  |  | 131.00% |  |
Top of range | Gold Options | Market risk |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Average realized price per ounce | $ / oz |  |  | 2,039 |  |  |  |
Top of range | 2019 | Collars | Currency risk |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Average rate of hedging instrument |  |  |  |  | 135.00% |  | 2259.00%
Top of range | 2019 | Bought Puts | Currency risk |  |  |  |  |  |  |
Disclosure of detailed information about hedged items [line items] |  |  |  |  |  |  |
Average rate of hedging instrument | $ / $ |  |  |  |  | 0.00% |  |

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