XML 16 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document and Entity Information - shares
3 Months Ended
Mar. 31, 2018
Apr. 24, 2018
Entity Information [Line Items]    
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  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q1  
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Mar. 31, 2018  
Common Class A [Member]    
Entity Information [Line Items]    
Entity Common Stock, Shares Outstanding   55,611,527