v2.4.0.6
Equity Interest Owned by Company (Detail)
Dec. 31, 2011
Dec. 31, 2010
Shanghai Tonghua Network Technology Co Ltd
   
Schedule of Equity Method Investments [Line Items]    
Percentage of equity interest owned 30.00% 30.00%
Beijing Huayi Giant Information Technology Co. Ltd.
   
Schedule of Equity Method Investments [Line Items]    
Percentage of equity interest owned 34.00% 34.00%
Shanghai Juxi Network Technology Co Ltd
   
Schedule of Equity Method Investments [Line Items]    
Percentage of equity interest owned 41.98%  
Shanghai Juxian Network Technology Co Ltd
   
Schedule of Equity Method Investments [Line Items]    
Percentage of equity interest owned 40.80%  
Yunfeng Fund
   
Schedule of Equity Method Investments [Line Items]    
Percentage of equity interest owned 10.42%