Annual report pursuant to Section 13 and 15(d)

Share-based compensation - Fair value assumptions (Details)

v3.23.1
Share-based compensation - Fair value assumptions (Details)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate, minimum 1.70% 0.36%
Risk-free interest rate, maximum 4.02% 1.39%
Expected dividend yield 0.00% 0.00%
Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected volatility 65.00% 60.00%
Expected life 6 years 6 years
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected volatility 72.50% 67.50%
Expected life 6 years 6 months 6 years 6 months