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Organization, Consolidation and Presentation Of Financial Statements - Additional Information (Detail) ¥ in Billions, $ in Billions | Jun. 30, 2020 CNY (¥) | Jun. 30, 2020 USD ($)
--- | --- | ---
Variable Interest Entity [Line Items] |  |
Exchange rate used for conversion of financial statements from RMB to US dollar | 7.0651 | 7.0651
Variable Interest Entity, Primary Beneficiary [Member] |  |
Variable Interest Entity [Line Items] |  |
Net assets of VIEs | ¥ 14.9 | $ 2.1

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