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Segment Information, Revenue by Product Lines (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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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 us-gaap_SalesRevenueGoodsGross | $ 638,800 us-gaap_SalesRevenueGoodsGross | $ 650,000 us-gaap_SalesRevenueGoodsGross | $ 671,100 us-gaap_SalesRevenueGoodsGross | $ 1,055,800 us-gaap_SalesRevenueGoodsGross | $ 908,300 us-gaap_SalesRevenueGoodsGross | $ 671,300 us-gaap_SalesRevenueGoodsGross | $ 541,300 us-gaap_SalesRevenueGoodsGross | $ 2,569,495 us-gaap_SalesRevenueGoodsGross | $ 3,176,718 us-gaap_SalesRevenueGoodsGross | $ 2,132,257 us-gaap_SalesRevenueGoodsGross
Nu Skin [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 1,562,595 us-gaap_SalesRevenueGoodsGross / us-gaap_ProductOrServiceAxis = nus_NuSkinMember | 1,641,618 us-gaap_SalesRevenueGoodsGross / us-gaap_ProductOrServiceAxis = nus_NuSkinMember | 1,158,213 us-gaap_SalesRevenueGoodsGross / us-gaap_ProductOrServiceAxis = nus_NuSkinMember
Pharmanex [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 1,000,279 us-gaap_SalesRevenueGoodsGross / us-gaap_ProductOrServiceAxis = nus_PharmanexMember | 1,529,211 us-gaap_SalesRevenueGoodsGross / us-gaap_ProductOrServiceAxis = nus_PharmanexMember | 966,572 us-gaap_SalesRevenueGoodsGross / us-gaap_ProductOrServiceAxis = nus_PharmanexMember
Other [Member] |  |  |  |  |  |  |  |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | $ 6,621 us-gaap_SalesRevenueGoodsGross / us-gaap_ProductOrServiceAxis = nus_OtherProductLinesMember | $ 5,889 us-gaap_SalesRevenueGoodsGross / us-gaap_ProductOrServiceAxis = nus_OtherProductLinesMember | $ 7,472 us-gaap_SalesRevenueGoodsGross / us-gaap_ProductOrServiceAxis = nus_OtherProductLinesMember

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- Definition Aggregate revenue during the period from sale of goods in the normal course of business, before deducting returns, allowances and 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(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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