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THE COMPANY (Details) | 12 Months Ended
--- | ---
Dec. 31, 2013 Region
The Company [Abstract] |
Number of geographic regions | 5

X
- Definition The number of geographic regions in which the Entity reports revenue. + References No definition available. + Details
Name: | nus_NumberOfGeographicRegions
Namespace Prefix: | nus_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration