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v3.21.2

Basic and diluted earnings per share - Ordinary share (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Net (loss) / income attributable to ordinary shares | $ (36,531) | $ (53,775) | $ 321,381 | $ (124,325)
Weighted-average number of ordinary shares outstanding - basic | 46,152,404 | 44,471,844 | 45,888,769 | 44,379,924
Weighted-average number of ordinary shares outstanding - diluted | 46,152,404 | 44,471,844 | 46,780,963 | 44,379,924
Stock options | Previous plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share based payment arrangements |  |  | 784,942 |
Stock options | ESPP |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share based payment arrangements |  |  | 1,382 |
Non-vested RSUs and PSUs |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share based payment arrangements |  |  | 105,870 |

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