The Company (Details)	12 Months Ended
Dec. 31, 2014 Region
The Company [Abstract]
Number of geographic regions	5nus_NumberOfGeographicRegions

The number of geographic regions in which the Entity reports revenue.

No definition available.

Name:	nus_NumberOfGeographicRegions
Namespace Prefix:	nus_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration