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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