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Provisions and other liabilities (Narrative) (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 CAD ($)
Disclosure of other provisions [line items] |
Provision for environmental rehabilitation | $ 23.4
Weighted average actualization rate | 4.20%

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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Period Type: | duration

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- Definition The amount of provision for costs related to decommissioning, restoration and rehabilitation. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Section D Examples: disclosures -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=sect_DExamples:disclosures&doctype=Illustrative%20Examples -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Paragraph 87 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=para_87&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Weighted average actualization rate. + References No definition available. + Details
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