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Contract Assets, Net - Schedule of Contract With Customer Asset Net Current (Detail) ¥ in Thousands, $ in Thousands | Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 CNY (¥)
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Contract with Customer, Asset, after Allowance for Credit Loss, Current [Abstract] |  |  |  |  |  |
Contract assets | ¥ 75,711 | $ 10,372 | ¥ 81,538 |  |  |
Allowance for credit losses | (61,856) | (8,474) | (58,790) | $ (8,054) | ¥ (35,770) | ¥ (14,478)
Total | ¥ 13,855 | $ 1,898 | ¥ 22,748 |  |  |

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