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Share Capital - Summary of Non-Vested Options (Details) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Share options outstanding, beginning of the year | 4,051,080 | 4,987,542
Number of share options vested in share-based payment arrangement | (1,816,592) | (3,023,878)
Number of share options forfeited in share-based payment arrangement | (86,960) | (182,879)
Share options outstanding, end of the year | 2,123,800 | 4,051,080

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