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v3.21.1

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, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥)
Disclosure of detailed information about property, plant and equipment [abstract] |  |  |
Depreciation capitalized as intangible assets | ¥ 28.2 | $ 4.4 | ¥ 21.6
Depreciation capitalized as contract assets | ¥ 0.0 | $ 0.0 | ¥ 8.8

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- Definition Depreciation capitalized as intangible assets. + References No definition available. + Details
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Balance Type: | debit
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- References No definition available. + Details
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