Segment Information, Revenue by Product Lines (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenue by Product Line [Abstract]
Revenue	$ 2,207,797	$ 2,247,047	$ 2,569,495
Nu Skin [Member]
Revenue by Product Line [Abstract]
Revenue	1,308,135	1,363,539	1,562,595
Pharmanex [Member]
Revenue by Product Line [Abstract]
Revenue	892,738	877,924	1,000,279
Other [Member]
Revenue by Product Line [Abstract]
Revenue	$ 6,924	$ 5,584	$ 6,621