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Segment Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 Region | Dec. 31, 2012 | Dec. 31, 2011
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |
Number of geographic regions |  |  |  |  |  |  |  |  | 5 |  |
Revenue by region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | $ 3,176,718 | $ 2,132,257 | $ 1,719,588
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue | 1,055,800 | 908,300 | 671,300 | 541,300 | 579,200 | 519,700 | 577,200 | 456,200 | 3,176,718 | 2,132,257 | 1,719,588
Nu Skin [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 1,641,618 | 1,158,213 | 950,639
Pharmanex [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 1,529,211 | 966,572 | 759,280
Other Product Lines [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 5,889 | 7,472 | 9,669
North Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue by region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 1,363,182 | 550,690 | 333,569
Greater China [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue by region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 869,400 | 785,302 | 741,857
Americas [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue by region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 370,087 | 285,283 | 248,180
South Asia Pacific [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue by region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 378,988 | 328,597 | 235,000
EMEA [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue by region [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | $ 195,061 | $ 182,385 | $ 160,982

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