SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) Region ProductLine	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)
SEGMENT INFORMATION [Abstract]
Number of geographic regions | Region			5
Number of product lines | ProductLine			3
Segment Information [Abstract]
Revenue	$ 571,308	$ 638,800	$ 1,674,849	$ 1,959,888
Nu Skin [Member]
Segment Information [Abstract]
Revenue	324,115	392,513	1,018,317	1,186,592
Pharmanex [Member]
Segment Information [Abstract]
Revenue	245,569	244,690	652,345	768,178
Other Product Lines [Member]
Segment Information [Abstract]
Revenue	1,624	1,597	4,187	5,118
Greater China [Member]
Segment Information [Abstract]
Revenue	188,669	226,744	576,172	735,542
North Asia [Member]
Segment Information [Abstract]
Revenue	167,748	205,488	512,757	596,944
Americas [Member]
Segment Information [Abstract]
Revenue	70,775	76,737	234,115	246,557
South Asia/Pacific [Member]
Segment Information [Abstract]
Revenue	108,857	88,915	247,697	241,762
EMEA [Member]
Segment Information [Abstract]
Revenue	35,259	40,916	104,108	139,083
Japan [Member]
Segment Information [Abstract]
Revenue	63,736	78,394	190,945	237,053
Long-lived assets	14,404		14,404		$ 13,768
Mainland China [Member]
Segment Information [Abstract]
Revenue	138,050	152,983	421,498	518,995
Long-lived assets	112,915		112,915		103,445
South Korea [Member]
Segment Information [Abstract]
Revenue	104,012	127,094	321,812	359,891
Long-lived assets	48,977		48,977		46,626
United States [Member]
Segment Information [Abstract]
Revenue	52,720	$ 54,241	170,288	$ 170,119
Long-lived assets	$ 272,034		$ 272,034		$ 287,103