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Decommissioning Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2017
Asset Retirement Obligation Disclosure1 [Abstract] |
Schedule of Change in Asset Retirement Obligation | A continuity of the decommissioning liability is as follows:
| Total
Balance – December 31, 2015 | $37.2 |
Reclamation expenditures | (0.3 | )
Accretion expense | 2.1 |
Revisions to expected discounted cash flows | 0.6 |
Balance – December 31, 2016 | $39.6
Liability assumed on acquisition | 2.4 |
Reclamation expenditures | (0.1 | )
Accretion expense | 2.6 |
Revisions to expected discounted cash flows | 0.1 |
Balance – December 31, 2017 | $44.6

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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 2017-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84&doctype=Standard -URIDate 2017-03-09 + Details
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