Short-term deposits (Details) ¥ in Thousands, $ in Thousands |
Dec. 31, 2024
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2023
USD ($)
|
Dec. 31, 2023
CNY (¥)
|
|---|---|---|---|---|
| Short Term And Long Term Deposits [Line Items] | ||||
| Short-term deposits | $ 1,061,011 | $ 1,970,346 | ||
| US$ | ||||
| Short Term And Long Term Deposits [Line Items] | ||||
| Short-term deposits | 702,450 | 1,596,592 | ||
| RMB | ||||
| Short Term And Long Term Deposits [Line Items] | ||||
| Short-term deposits | 300,869 | ¥ 2,162,766 | $ 373,754 | ¥ 2,647,185 |
| Others | ||||
| Short Term And Long Term Deposits [Line Items] | ||||
| Short-term deposits | $ 57,692 |