Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable excess tax benefits associated with a share-based compensation plan.

No definition available.

Name:	nus_EffectiveIncomeTaxRateReconciliationExcessTaxBenefitsAmount
Namespace Prefix:	nus_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

ACCOUNTING PRONOUNCEMENTS (Details) - Accounting Standards Update 2016-09 [Member] - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Dec. 31, 2016
Accounting Pronouncements [Abstract]
Excess tax benefits	$ (1.0)	$ (4.0)
Retained Earnings [Member]
Accounting Pronouncements [Abstract]
Cumulative adjustment			$ (2.8)
Additional Paid-in Capital [Member]
Accounting Pronouncements [Abstract]
Cumulative adjustment			$ 2.8