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v3.25.3

Related Parties - Summary of Loan Activity (Detail) ¥ in Thousands, $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2025 CNY (¥) | Sep. 30, 2024 USD ($) | Sep. 30, 2024 CNY (¥)
Related Party Transaction [Line Items] |  |  |  |
Repayments |  |  | $ (664) |
ATR [Member] | Minority Shareholder Loan [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Balance at beginning of the period | $ 0 | ¥ 0 | 665 | ¥ 4,713
Borrowings | 0 | 0 | 0 | 0
Repayments | 0 | 0 | (664) | (4,713)
Foreign exchange | 0 | 0 | (1) | 0
Balance at end of the period | $ 0 | ¥ 0 | $ 0 | ¥ 0

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