Segment Information, Revenue by Product Lines (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue by product line [Abstract]
Revenue	$ 572,200	$ 571,300	$ 560,200	$ 543,300	$ 609,600	$ 638,800	$ 650,000	$ 671,100	$ 2,247,047	$ 2,569,495	$ 3,176,718
Nu Skin [Member]
Revenue by product line [Abstract]
Revenue									1,363,539	1,562,595	1,641,618
Pharmanex [Member]
Revenue by product line [Abstract]
Revenue									877,924	1,000,279	1,529,211
Other [Member]
Revenue by product line [Abstract]
Revenue									$ 5,584	$ 6,621	$ 5,889