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Share-based compensation - Schedule of Share-based Compensation Reserve (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Expense recognized | $ 2,083 | $ 14,565 | $ 11,275 | $ 41,781
2019 Equity Incentive Plan |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Tax expense from share-based payment transactions with employees | 0 | 0 | 0 | (512)
2019 Equity Incentive Plan | Share Options |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Increase in reserve of share-based payments | 1,277 | 8,193 | 5,343 | 27,158
2019 Equity Incentive Plan | Restricted Stock Units |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Increase in reserve of share-based payments | 728 | 6,372 | 5,649 | 15,135
ESPP Expense |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |
Increase in reserve of share-based payments | $ 78 | $ 0 | $ 283 | $ 0

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