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v3.20.4

Shareholders' equity - Additional Information (Detail) - shares | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2020 | Sep. 30, 2019
Disclosure of classes of share capital [line items] |  |  |
Anti-dilutive securities issued under option plan | 1,000,000 | 1,000,000 | 200,000

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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 Antidilutive securities excluded from computation of earnings per share amount1. + References No definition available. + Details
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Period Type: | duration