Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1

+ Details

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the declared dividend will be paid, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482913/230-10-50-3

+ Details

Name:	us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_DividendsCashAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The month and year (YYYY-MM) that the dividend to be paid was declared.

+ References

+ Details

Name:	us-gaap_DividendsPayableDateDeclaredMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	instant

- Definition

Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsPayableDateOfRecordDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-15

+ Details

Name:	us-gaap_PaymentsOfDividendsCommonStock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DividendsAxis=nus_DividendDeclared2022Q1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=nus_DividendDeclared2022Q2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DividendsAxis=nus_DividendDeclared2023Q3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Capital Stock, Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended			6 Months Ended
	Jul. 31, 2023	May 31, 2022	Feb. 28, 2022	Jun. 30, 2023	Jun. 30, 2022
Dividends per Share [Abstract]
Payment of cash dividends				$ 38,867	$ 38,685
Dividend Declared 2022-Q1 [Member]
Dividends per Share [Abstract]
Dividend payable, date declared				2022-02
Dividend payable per share (in dollars per share)			$ 0.39
Payment of cash dividends			$ 19,400
Dividend payable, date paid				Mar. 08, 2023
Dividend payable, date of record				Feb. 27, 2023
Dividend Declared 2022-Q2 [Member]
Dividends per Share [Abstract]
Dividend payable, date declared				2022-05
Dividend payable per share (in dollars per share)		$ 0.39
Payment of cash dividends		$ 19,500
Dividend payable, date paid				Jun. 07, 2023
Dividend payable, date of record				May 26, 2023
Dividend Declared 2023-Q3 [Member] \| Subsequent Event [Member]
Dividends per Share [Abstract]
Dividend payable, date declared	2023-07
Dividend payable per share (in dollars per share)	$ 0.39
Dividend payable, date paid	Sep. 06, 2023
Dividend payable, date of record	Aug. 25, 2023