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Shareholders’ equity - Summary of Restricted Share Units Activity (Details) - 2020 Share Option and Incentive Plan - Restricted Share Units (RSUs)
9 Months Ended
Sep. 30, 2023
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Number of Shares Outstanding, Beginning Balance (in shares) | shares 3,946,985
Number of Shares, Granted (in shares) | shares 1,585,750
Number of Shares, Vested and settled (in shares) | shares (752,182)
Number of Shares, Forfeited (in shares) | shares (362,583)
Number of Shares Outstanding, Ending Balance (in shares) | shares 4,417,970
Weighted-Average Grant Date Fair Value, Beginning Balance (in dollars per share) | $ / shares $ 13.71
Weighted-Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares 9.34
Weighted-Average Grant Date Fair Value, Vested and settled (in dollars per share) | $ / shares 14.41
Weighted-Average Grant Date Fair Value, Forfeited (in dollars per share) | $ / shares 11.89
Weighted-Average Grant Date Fair Value, Ending Balance (in dollars per share) | $ / shares $ 12.18