Taxation - Movement of valuation allowance (Detail) ¥ in Thousands, $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
Dec. 31, 2023
CNY (¥)
|
|
| Income Tax Disclosure [Abstract] | ||||
| Balance at beginning of the year | ¥ (201,302) | $ (28,786) | ¥ (311,645) | ¥ (420,566) |
| Additions | (36,557) | (5,227) | (34,672) | (26,623) |
| Reversal and write off | 45,274 | 6,474 | 145,015 | 135,544 |
| Balance at ending of the year | ¥ (192,585) | $ (27,539) | ¥ (201,302) | ¥ (311,645) |