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v3.25.1

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Parenthetical) (Detail) ¥ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2024 CNY (¥) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 CNY (¥)
Disclosure of detailed information about property, plant and equipment [abstract] |  |  |
Depreciation capitalized as development costs | ¥ 19.2 | $ 2.7 | ¥ 16.6
Depreciation capitalized as contract assets | ¥ 1.4 | $ 0.2 | ¥ 2.2

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- Definition Depreciation capitalized as development costs. + References No definition available. + Details
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