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v3.25.1

Fair Value Measurements (Details) | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($) EquityInstruments | Dec. 31, 2023 USD ($)
Fair value measurements |  |
Transfer from Level 1 to 2 of financial assets | $ 0 | $ 0
Transfer from Level 2 to 1 of financial assets | 0 | 0
Transfer from Level 1 to 2 of financial liabilities | 0 | 0
Transfer from Level 2 to 1 of financial liabilities | 0 | 0
Transfers Into Level 3 of financial assets | 0 | 0
Transfers Out of Level 3 of financial assets | 0 | 0
Transfers Into Level 3 of financial liabilities | 0 | 0
Transfers Out of Level 3 of financial liabilities | $ 0 | 0
Number of investments with no quoted market price in an active market | EquityInstruments | 2 |
Recurring Basis |  |
Fair value measurements |  |
Financial assets, at fair value | $ 328,100,000 | 285,000,000
Recurring Basis | Level 1 |  |
Fair value measurements |  |
Financial assets, at fair value | 316,800,000 | 241,800,000
Recurring Basis | Level 2 |  |
Fair value measurements |  |
Financial assets, at fair value | 3,300,000 | 13,800,000
Recurring Basis | Level 3 |  |
Fair value measurements |  |
Financial assets, at fair value | 8,000,000 | 29,400,000
Receivables from provisional concentrate sales | Recurring Basis |  |
Fair value measurements |  |
Financial assets, at fair value | 2,600,000 | 5,700,000
Receivables from provisional concentrate sales | Recurring Basis | Level 2 |  |
Fair value measurements |  |
Financial assets, at fair value | 2,600,000 | 5,700,000
Equity investments | Recurring Basis |  |
Fair value measurements |  |
Financial assets, at fair value | 324,800,000 | 246,400,000
Equity investments | Recurring Basis | Level 1 |  |
Fair value measurements |  |
Financial assets, at fair value | 316,800,000 | 241,800,000
Equity investments | Recurring Basis | Level 3 |  |
Fair value measurements |  |
Financial assets, at fair value | 8,000,000 | 4,600,000
Warrants | Recurring Basis |  |
Fair value measurements |  |
Financial assets, at fair value | 700,000 | 8,100,000
Warrants | Recurring Basis | Level 2 |  |
Fair value measurements |  |
Financial assets, at fair value | $ 700,000 | 8,100,000
Skeena Convertible Debenture | Recurring Basis |  |
Fair value measurements |  |
Financial assets, at fair value |  | 24,800,000
Skeena Convertible Debenture | Recurring Basis | Level 3 |  |
Fair value measurements |  |
Financial assets, at fair value |  | $ 24,800,000

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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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