v2.4.0.6
Document and Entity Information
12 Months Ended
Dec. 31, 2011
Apr. 20, 2012
Class A ordinary shares
Apr. 20, 2012
Class B ordinary shares
Entity Registrant Name Renren Inc.    
Entity Central Index Key 0001509223    
Document Type 20-F    
Document Period End Date Dec. 31, 2011    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Non-accelerated Filer    
Entity Common Stock, Shares Outstanding   775,870,790 405,388,450
Document Fiscal Year Focus 2011    
Document Fiscal Period Focus FY