Document and Entity Information (USD $) In Billions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Jun. 30, 2014	Jan. 31, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	NU SKIN ENTERPRISES INC
Entity Central Index Key	0001021561
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float		$ 4.3
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2014
Class A common [Member]
Statement [Line Items]
Entity Common Stock, Shares Outstanding			59,445,344
Class B common [Member]
Statement [Line Items]
Entity Common Stock, Shares Outstanding			0