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Decommissioning Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2021
Asset Retirement Obligation Disclosure1 [Abstract] |
Schedule of Change in Asset Retirement Obligation | A continuity of the decommissioning liability is as follows:
| Total
Balance – current and non-current portion December 31, 2019 | $59.0
Reclamation expenditures | (3.5) |
Accretion expense | 2.6
Revisions to expected discounted cash flows | 17.1
Balance – current and non-current portion December 31, 2020 | $75.2
Reclamation expenditures | (1.2) |
Accretion expense | 2.3
Revisions to expected discounted cash flows | 29.8
Balance – current and non-current portion December 31, 2021 | $106.1
Less: Current portion of decommissioning liability 1 | (3.3)
Balance – non-current portion December 31, 2021 | $102.8
1. The current portion of decommissioning liability is included in accounts payable and accrued liabilities (note 9).

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- Definition Asset Retirement Obligation Disclosure1 [Abstract] + References No definition available. + Details
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- Definition The disclosure of other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84&doctype=Standard -URIDate 2021-03-24 + Details
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