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Concentration and Risks - Additional Information (Detail) - Foreign Currency exchange rate risk [Member] - RMB Against US Dollar [Member] | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 31, 2005 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Concentration Risk [Line Items] |  |  |  |
Percentage of depreciation in foreign currency exchange rate |  |  |  | 1.70%
Percentage of appreciation in foreign currency exchange rate |  | 2.30% | 6.50% |
Minimum [Member] |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Minimum percent of appreciation of domestic currency against foreign currency over following three years | 20.00% |  |  |

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- Definition Minimum percent of appreciation of domestic currency against foreign currency over following three years. + References No definition available. + Details
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- Definition Percentage of appreciation in foreign currency exchange rate + References No definition available. + Details
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- Definition Percentage of depreciation in foreign currency exchange rate. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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