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SEGMENT INFORMATION, Products and Services (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Revenue from External Customer [Line Items]    
Revenue $ 543,332us-gaap_SalesRevenueGoodsGross $ 671,061us-gaap_SalesRevenueGoodsGross
Nu Skin [Member]    
Revenue from External Customer [Line Items]    
Revenue 342,766us-gaap_SalesRevenueGoodsGross
/ us-gaap_ProductOrServiceAxis
= nus_NuSkinMember		 402,111us-gaap_SalesRevenueGoodsGross
/ us-gaap_ProductOrServiceAxis
= nus_NuSkinMember
Pharmanex [Member]    
Revenue from External Customer [Line Items]    
Revenue 199,272us-gaap_SalesRevenueGoodsGross
/ us-gaap_ProductOrServiceAxis
= nus_PharmanexMember		 267,272us-gaap_SalesRevenueGoodsGross
/ us-gaap_ProductOrServiceAxis
= nus_PharmanexMember
Other Product Lines [Member]    
Revenue from External Customer [Line Items]    
Revenue $ 1,294us-gaap_SalesRevenueGoodsGross
/ us-gaap_ProductOrServiceAxis
= nus_OtherProductLinesMember		 $ 1,678us-gaap_SalesRevenueGoodsGross
/ us-gaap_ProductOrServiceAxis
= nus_OtherProductLinesMember