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Land Use Rights, Net (Tables)
12 Months Ended
Dec. 31, 2014
Land Use Rights, Net [Abstract]  
Schedule of Land Use Rights, Net
   December 31, 
   2013   2014 
         
Land use rights  $77,590   $143,194 
Less: accumulated depreciation and amortization   1,892    4,087 
           
Land use rights, net  $75,698   $139,107