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Other (Loss) Gain (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Other Gain (Loss) [Abstract] |  |
Reduction of obligation to renounce flow-through exploration expenditures | $ 1.0 | $ 0.6
Unrealized gains on non-hedged derivatives | 0.7 | (0.6)
Fair value adjustment on prepayment option embedded derivative | 3.5 | 2.0
Loss on disposal of assets | (1.0) | (0.7)
Reclamation, care and maintenance | 0.6 | 8.0
Other | (5.0) | (2.2)
Other gains (losses) | $ (3.7) | $ 5.1

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- Definition Other Gain (Loss) [Abstract] + References No definition available. + Details
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- Definition Other Gains (Losses), Other + References No definition available. + Details
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- Definition other nonoperating income (expense) + References No definition available. + Details
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- Definition Reclamation, Care and Maintenance Expenses + References No definition available. + Details
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- Definition Reduction of Obligation to Renounce Flow Through Exploration Costs + References No definition available. + Details
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- Definition Unrealized Gain (Loss) on Derivatives1 + References No definition available. + Details
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- Definition Adjustments for gains (losses) on changes in the fair value of derivatives to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: At fair value [member]; Derivatives [member]; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_20&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The losses on disposals of non-current assets. [Refer: Non-current assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
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