Quarterly report pursuant to Section 13 or 15(d)

Loss per share - Antidilutive shares (Details)

v3.21.2
Loss per share - Antidilutive shares (Details) - shares
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Share options    
Antidilutive securities    
Potentially dilutive equity instruments excluded from the diluted loss per share (in shares) 115,924,296 91,263,299