Segment Information, Revenue by Product Lines (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue from External Customer [Line Items]
Revenue	$ 609,600	$ 638,800	$ 650,000	$ 671,100	$ 1,055,800	$ 908,300	$ 671,300	$ 541,300	$ 2,569,495	$ 3,176,718	$ 2,132,257
Nu Skin [Member]
Revenue from External Customer [Line Items]
Revenue									1,562,595	1,641,618	1,158,213
Pharmanex [Member]
Revenue from External Customer [Line Items]
Revenue									1,000,279	1,529,211	966,572
Other [Member]
Revenue from External Customer [Line Items]
Revenue									$ 6,621	$ 5,889	$ 7,472