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Segment disclosure - Disclosure of detailed information about assets and expenses related to the exploration, evaluation and development of mining projects (Detail) - CAD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Net assets (as at December 31) |  |  |
Mining interests, plant and equipment | $ 333,778 | $ 0 |
Exploration and evaluation assets | 42,949 | 95,002 | $ 102,182
Net assets | 376,727 | 95,002 |
Expenses (for the years ended December 31) |  |  |
Exploration and evaluation | 191 | 183 |
Impairment of exploration and evaluation assets | 49,985 | 0 |
Expenses | $ 50,176 | $ 183 |

X
- Definition The amount of assets arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2018-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=6&date=2018-03-01&anchor=para_24_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2018-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=6&date=2018-03-01&anchor=para_24_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Represents amount of expense arising from the search for mineral resources. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of impairment of exploration and evaluation assets. + References No definition available. + Details
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- Definition Represents amount of mining interests, plant and equipment, and exploration and evaluation assets. + References No definition available. + Details
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- Definition Represents information about mining interests plant and equipment assets. + References No definition available. + Details
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