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Share-based compensation - Additional Information (Detail) $ / shares in Units, $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 CAD ($) $ / shares | Dec. 31, 2019 CAD ($) $ / shares
Disclosure of classes of share capital [line items] |  |
Weighted average share price | $ / shares | $ 0.49 | $ 1.10
Employer contributions to employee retirement savings plan percentage of employee contribution | 1.00% |
Percentage of employees contribution | 10.00% |
Deferred share unit [member] |  |
Disclosure of classes of share capital [line items] |  |
Number of options outstanding | 1,863,521 | 847,100
Current liability | $ | $ 1 | $ 1

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- Definition The amount of current net defined benefit liability. [Refer: Net defined benefit liability] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
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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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- Definition The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The weighted average share price. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2020-01-01 -Paragraph 45 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_45_c&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition Employer contributions to employee retirement savings plan percentage of employee contribution. + References No definition available. + Details
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- Definition Percentage of employees contribution. + References No definition available. + Details
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- Details
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