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Non-controlling Interests (Details)
12 Months Ended 0 Months Ended
Dec. 31, 2011
Oct. 02, 2011
Sinovac Beijing
USD ($)
Oct. 02, 2011
Sinovac Beijing
CNY
Sep. 30, 2011
Sinovac Beijing
Dec. 31, 2012
Sinovac Dalian
Dec. 31, 2011
Sinovac Dalian
Non-controlling Interests            
Increase in ownership (as a percent) 1.53% 1.53% 1.53%      
Increase in ownership by the entity in a subsidiary through contributing dividends declared to another subsidiary, but unpaid   $ 2,906,308 18,605,600      
Adjustment charged to additional paid-in capital, resulted from the difference between adjusted carrying amount of non-controlling interest and consideration   $ 273,171 1,640,336      
Non-controlling ownership interest (as a percent)   26.91% 26.91% 28.44% 45.00% 45.00%