Document And Entity Information
9 Months Ended
Sep. 30, 2010
Nov. 01, 2011
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2011  
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus Q3  
Entity Registrant Name RPX Corp  
Entity Central Index Key 0001509432  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Common Stock, Shares Outstanding   49,034,244