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Decommissioning Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2020
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, 2018 | $44.9
Reclamation expenditures | (2.0) |
Accretion expense | 2.8
Revisions to expected discounted cash flows | 13.3
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

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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 2020-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_84&doctype=Standard -URIDate 2020-01-01 + Details
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