Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Description of Business, Organization and Significant Concentrations and Risks - Additional Information (Details)

v3.20.1
Description of Business, Organization and Significant Concentrations and Risks - Additional Information (Details)
12 Months Ended
Dec. 31, 2019
CNY (¥)
Dec. 31, 2019
HKD ($)
PRC | Maximum    
Variable Interest Entity    
Amount insured by government authority | ¥ ¥ 500,000  
HKSAR | Maximum    
Variable Interest Entity    
Amount insured by government authority | $   $ 500,000
Huanqiuyimeng    
Variable Interest Entity    
Acquisition date Aug. 06, 2019  
Percentage of equity interest acquired 100.00% 100.00%