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Financial risk management - Exposure to currency risk (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
EXPOSURE TO CURRENCY RISK |  |  |
Cash and cash equivalents | $ 105.2 | $ 185.5 | $ 200.8
Deferred tax assets | 8.7 | 4.9 |
Deferred tax liability | (55.6) | (74.8) |
Reclamation and closure cost obligations | (119.4) | (124.2) | $ (121.2)
Canadian dollar | Currency risk |  |  |
EXPOSURE TO CURRENCY RISK |  |  |
Cash and cash equivalents | 12.3 | 15.5 |
Trade and other receivables | 4.5 | 6.3 |
Investments | 5.1 | 7.1 |
Income tax receivable (payable) | (0.5) | 0.4 |
Deferred tax assets | 8.7 | 4.9 |
Trade and other payables | (99.8) | (126.2) |
Deferred tax liability | (55.6) | (74.8) |
Reclamation and closure cost obligations | (117.8) | (123.4) |
Share units | (19.8) | (9.9) |
Total exposure to currency risk | $ (262.9) | $ (300.1) |

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- Definition The amounts of income taxes recoverable in future periods in respect of: (a) deductible temporary differences; (b) the carryforward of unused tax losses; and (c) the carryforward of unused tax credits. [Refer: Temporary differences [member]; Unused tax credits [member]; Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2024-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2024-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph o -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_o&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 56 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_56&doctype=Standard -URIDate 2024-03-27 + Details
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