Share capital - Share repurchases (Details) ¥ in Thousands, $ in Thousands |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
|
Mar. 17, 2025
USD ($)
|
Nov. 11, 2023
USD ($)
|
Dec. 31, 2025
CNY (¥)
shares
|
Dec. 31, 2025
USD ($)
shares
|
Dec. 31, 2024
CNY (¥)
shares
|
Dec. 31, 2024
USD ($)
shares
|
Dec. 31, 2023
CNY (¥)
shares
|
Dec. 31, 2023
USD ($)
shares
|
|
| Share capital | ||||||||
| Value of shares authorized for repurchase | $ | $ 1,000,000 | |||||||
| Repurchase period | 24 months | |||||||
| Number of exercises of share options and vesting of restricted shares and RSUs vesting | 4,718,535 | 4,718,535 | 5,953,956 | 5,953,956 | 6,552,299 | 6,552,299 | ||
| Aggregate purchase price | ¥ | ¥ 5,448,058 | ¥ 4,872,181 | ¥ 112,666 | |||||
| Potential ordinary share transactions | ||||||||
| Share capital | ||||||||
| Value of shares authorized for repurchase | $ | $ 2,000,000 | |||||||
| Repurchase period | 24 months | |||||||
| ADS | ||||||||
| Share capital | ||||||||
| Number of shares repurchased | 157,018,908 | 157,018,908 | 163,105,636 | 163,105,636 | 4,244,255 | 4,244,255 | ||
| Aggregate purchase price | ¥ 5,448,058 | $ 761,767 | ¥ 4,872,181 | $ 687,755 | ¥ 112,666 | $ 15,860 | ||
| Number of shares cancelled | 286,666,720 | 286,666,720 | ||||||
| Number of shares held in treasury account | 37,702,079 | 37,702,079 | ||||||
| Class A ordinary shares | Ordinary shares | ||||||||
| Share capital | ||||||||
| Number of shares repurchased | 39,254,727 | 39,254,727 | 40,776,409 | 40,776,409 | 1,061,064 | 1,061,064 | ||
| Number of shares cancelled | 71,666,680 | 71,666,680 | ||||||
| Number of shares held in treasury account | 9,425,520 | 9,425,520 | ||||||