Share-based compensation - Summary of Stock Options for Exchange to RSUs and Employee Stock Options (Details) - Employee Stock Options |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2024
yr
$ / shares
|
Dec. 31, 2023
yr
$ / shares
|
|
| Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] | ||
| Weighted-average ADS price at grant date | $ / shares | $ 20.8 | $ 35 |
| Expected price volatility of the Company's ADSs (%) | 60.00% | |
| Bottom of Range | ||
| Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] | ||
| Expected term (years) | 6 | 6 |
| Expected price volatility of the Company's ADSs (%) | 50.00% | |
| Risk-free interest rate (%) | 4.19% | 3.84% |
| Top of Range | ||
| Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] | ||
| Expected term (years) | 8 | 8 |
| Expected price volatility of the Company's ADSs (%) | 55.00% | |
| Risk-free interest rate (%) | 4.57% | 4.61% |