Document and Entity Information
9 Months Ended
Sep. 30, 2011
Oct. 17, 2011
Class A Common Stock
Oct. 17, 2011
Class B Common Stock
Entity Registrant NameGNC HOLDINGS, INC.  
Entity Central Index Key0001502034  
Document Type10-Q  
Document Period End DateSep. 30, 2011
Amendment Flagfalse  
Current Fiscal Year End Date--12-31  
Entity Current Reporting StatusYes  
Entity Filer CategoryNon-accelerated Filer  
Entity Common Stock, Shares Outstanding 92,023,95613,782,311
Document Fiscal Year Focus2011  
Document Fiscal Period FocusQ3