Name:	nus_DeferredCompensationArrangementCompanyContributionPercentageOfBaseSalary
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The minimum age for a participant's unvested company contributions to fully vest in a deferred compensation plan.

No definition available.

Name:	nus_DeferredCompensationArrangementMinimumAgeForParticipantUnvestedCompanyContributionsToFullyVest
Namespace Prefix:	nus_
Data Type:	xbrli:durationItemType
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The percentage of a participant's contributions that vest in a deferred compensation plan.

No definition available.

Name:	nus_DeferredCompensationArrangementParticipantVestingPercentage
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Data Type:	dtr-types:percentItemType
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Period Type:	duration

The percentage of a participant's base salary that can be deferred in a deferred compensation plan.

No definition available.

Name:	nus_DeferredCompensationArrangementPercentageOfBaseSalaryThatCanBeDeferred
Namespace Prefix:	nus_
Data Type:	dtr-types:percentItemType
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Period Type:	duration

The percentage of a participant's bonus or director fees that can be deferred in a deferred compensation plan.

No definition available.

Name:	nus_DeferredCompensationArrangementPercentageOfBonusOrDirectorFeesThatCanBeDeferred
Namespace Prefix:	nus_
Data Type:	dtr-types:percentItemType
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Period Type:	instant

The percentage of company contributions to a deferred compensation plan that vest after five years of service.

No definition available.

Name:	nus_DeferredCompensationArrangementPercentageOfCompanyContributionsVestingAfterFiveYearsOfService
Namespace Prefix:	nus_
Data Type:	dtr-types:percentItemType
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The percentage of company contributions to a deferred compensation plan that vest after ten years of service.

No definition available.

Name:	nus_DeferredCompensationArrangementPercentageOfCompanyContributionsVestingAfterTenYearsOfService
Namespace Prefix:	nus_
Data Type:	dtr-types:percentItemType
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The percentage of company contributions to a deferred compensation plan that vest annually after the first 50% vest with ten years of service.

No definition available.

Name:	nus_DeferredCompensationArrangementPercentageOfCompanyContributionsVestingAnnuallyThereafter
Namespace Prefix:	nus_
Data Type:	dtr-types:percentItemType
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The term of a participant's service with the Company to qualify for accelerated vesting above a specified compensation level under the deferred compensation plan.

No definition available.

Name:	nus_DeferredCompensationArrangementTermOfEmploymentForAcceleratedVestingAboveSpecifiedCompensationLevel
Namespace Prefix:	nus_
Data Type:	xbrli:durationItemType
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Period Type:	duration

The term of a participant's service with the Company to qualify for 50% vesting of Company contributions to a deferred compensation plan, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

No definition available.

Name:	nus_DeferredCompensationArrangementTermOfServiceToQualifyForFiftyPercentVesting
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Data Type:	xbrli:durationItemType
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Period Type:	duration

Period over which participant vests in Company contributions to deferred compensation plan, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

No definition available.

Name:	nus_DeferredCompensationArrangementVestingPeriod
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Data Type:	xbrli:durationItemType
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Period Type:	duration

The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(b))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

Name:	us-gaap_DeferredCompensationArrangementsAbstract
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Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable beyond one year (or the operating cycle, if longer).

No definition available.