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Financial Instruments and Risk Management (Derivative Instrument Not Designated as Cash Flow Hedged Narrative) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($) $ / oz | Dec. 31, 2023 USD ($)
Disclosure of detailed information about hedged items [line items] |  |
Average realized price per ounce | $ / oz | 1,950 |
Unrealized loss on commodity derivatives | $ 24.2 | $ 0.9
Expense relating to variable lease payments not included in measurement of lease liabilities | 131.9 | 104.2
Derivatives | Gold Options |  |
Disclosure of detailed information about hedged items [line items] |  |
Financial assets, at fair value | (0.8) |
Gold Options | Derivatives |  |
Disclosure of detailed information about hedged items [line items] |  |
Financial liabilities, at fair value | 0.0 |
Gold Options | Commodity price risk |  |
Disclosure of detailed information about hedged items [line items] |  |
Unrealized loss on commodity derivatives | (9.3) | (0.1)
Fair value adjustment on contingent consideration | $ 24.2 | $ 0.9

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- Definition Unrealized Gain (Loss) on Derivatives1 + References No definition available. + Details
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- Definition The amount of the expense relating to variable lease payments not included in the measurement of lease liabilities. Variable lease payments are the portion of payments made by a lessee to a lessor for the right to use an underlying asset during the lease term that varies because of changes in facts or circumstances occurring after the commencement date, other than the passage of time. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 53 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The fair value of financial assets. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 + Details
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