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Segment Information, Revenue by Product Line (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Revenue by Product Line [Abstract] |  |  |
Revenue | $ 2,279,099 | $ 2,207,797 | $ 2,247,047
Nu Skin [Member] |  |  |
Revenue by Product Line [Abstract] |  |  |
Revenue | 1,456,386 | 1,308,135 | 1,363,539
Pharmanex [Member] |  |  |
Revenue by Product Line [Abstract] |  |  |
Revenue | 817,230 | 892,738 | 877,924
Other [Member] |  |  |
Revenue by Product Line [Abstract] |  |  |
Revenue | $ 5,483 | $ 6,924 | $ 5,584

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Details
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