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SEGMENT INFORMATION, Products and Services (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Revenue from External Customer [Line Items]    
Revenue $ 671,061 $ 541,305
Nu Skin [Member]
   
Revenue from External Customer [Line Items]    
Revenue 402,111 321,440
Pharmanex [Member]
   
Revenue from External Customer [Line Items]    
Revenue 267,272 218,351
Other Product Lines [Member]
   
Revenue from External Customer [Line Items]    
Revenue $ 1,678 $ 1,514