Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 25, 2013
Entity Registrant Name	GNC HOLDINGS, INC.
Entity Central Index Key	0001502034
Document Type	10-Q
Document Period End Date	Sep. 30, 2013
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		94,995,650
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3