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Statutory Surplus Reserves - Additional Information (Details)
¥ in Millions
12 Months Ended
Dec. 31, 2018
USD ($)
Dec. 31, 2018
CNY (¥)
Dec. 31, 2017
USD ($)
Dec. 31, 2017
CNY (¥)
Dec. 31, 2016
USD ($)
Schedule Of Distribution Of Profits [Line Items]          
Appropriation of net income after taxes to statutory surplus reserve fund required minimum percentage 10.00%        
Reserve level threshold for mandatory transfer percentage 50.00%        
Statutory surplus reserves (note 19) $ 26,643,000   $ 19,549,000    
Dividends payable, current 0   0    
Restricted paid in capital, additional paid in capital and statutory surplus reserves 75,447,000 ¥ 519 68,353,000 ¥ 473  
Amount of restricted net assets for consolidated and unconsolidated subsidiaries 154,437,000   116,365,000    
Sinovac Beijing          
Schedule Of Distribution Of Profits [Line Items]          
Dividends payable, current $ 0   $ 0   $ 0