Summary of Significant Accounting Policies - Schedule Of Operating Lease In Its Unaudited Consolidated Balance Sheet (Detail) ¥ in Thousands, $ in Thousands |
Dec. 31, 2025
CNY (¥)
|
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
CNY (¥)
|
|---|---|---|---|
| Accounting Policies [Abstract] | |||
| Operating lease ROU assets | ¥ 62,168 | $ 8,890 | ¥ 98,921 |
| Operating lease liabilities, current portion | 39,207 | 5,607 | 73,610 |
| Operating lease liabilities, non-current portion | ¥ 21,544 | $ 3,079 | ¥ 23,103 |
| Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Other Assets, Noncurrent | Other Assets, Noncurrent | Other Assets, Noncurrent |
| Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Accounts Payable and Accrued Liabilities, Current | Accounts Payable and Accrued Liabilities, Current | Accounts Payable and Accrued Liabilities, Current |