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Share-based compensation - Schedule of Other Equity Instruments Outstanding (Details) - Restricted Share Units (RSU)
 9 Months Ended
Sep. 30, 2023
shares
$ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items]  
Number of awards, beginning of period (in shares) | shares 1,585,877
Number of awards, granted (in shares) | shares 979,680
Number of awards, vested (in shares) | shares (1,323,841)
Number of awards, forfeited (in shares) | shares (259,258)
Number of awards, end of period (in shares) | shares 982,458
Weighted average grant date fair value, beginning balance (in USD per share) | $ / shares $ 13.26
Weighted average grant date fair value, granted (in USD per share) | $ / shares 2.13
Weighted average grant date fair value, vested (in dollars per share) | $ / shares 10.15
Weighted average grant date fair value, forfeited (in dollars per share) | $ / shares 8.10
Weighted average grant date fair value, ending balance (in USD per share) | $ / shares $ 8.27