XML 52 R40.htm IDEA: XBRL DOCUMENT
v3.19.1

Debt, Existing Credit Agreement (Details) - USD ($) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Apr. 18, 2018 | Mar. 31, 2019 | Mar. 31, 2018
Debt [Abstract] |  |  |
Proceeds from debt |  | $ 105,000 | $ 75,943
Existing Credit Agreement [Member] | Maximum [Member] |  |  |
Debt [Abstract] |  |  |
Consolidated leverage ratio |  | 2.25 |
Existing Credit Agreement [Member] | Minimum [Member] |  |  |
Debt [Abstract] |  |  |
Consolidated interest coverage ratio |  | 3.00 |
Term Loan Facility [Member] |  |  |
Debt [Abstract] |  |  |
Original principal amount | $ 400,000 | $ 400,000 |
Term of loan |  | 5 years |
Term Loan Facility [Member] | First Year [Member] |  |  |
Debt [Abstract] |  |  |
Annual amortization percentage |  | 5.00% |
Term Loan Facility [Member] | Second Year [Member] |  |  |
Debt [Abstract] |  |  |
Annual amortization percentage |  | 5.00% |
Term Loan Facility [Member] | Third Year [Member] |  |  |
Debt [Abstract] |  |  |
Annual amortization percentage |  | 7.50% |
Term Loan Facility [Member] | Fourth Year [Member] |  |  |
Debt [Abstract] |  |  |
Annual amortization percentage |  | 7.50% |
Term Loan Facility [Member] | Fifth Year [Member] |  |  |
Debt [Abstract] |  |  |
Annual amortization percentage |  | 10.00% |
Term Loan Facility [Member] | LIBOR [Member] |  |  |
Debt [Abstract] |  |  |
Basis spread on variable rate |  | 2.25% |
Revolving Credit Facility [Member] |  |  |
Debt [Abstract] |  |  |
Borrowing capacity | 350,000 |  |
Term of loan |  | 5 years |
Proceeds from debt | $ 78,500 |  |
Revolving Credit Facility [Member] | LIBOR [Member] |  |  |
Debt [Abstract] |  |  |
Basis spread on variable rate |  | 2.25% |

X
- Definition Consolidated interest coverage ratio that must be maintained under the Credit Agreement. + References No definition available. + Details
Name: | nus_ConsolidatedInterestCoverageRatio
Namespace Prefix: | nus_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Consolidated leverage ratio that must be maintained under the Credit Agreement. + References No definition available. + Details
Name: | nus_ConsolidatedLeverageRatio
Namespace Prefix: | nus_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition The annual required amortization percentage applied to principal. + References No definition available. + Details
Name: | nus_DebtInstrumentAnnualAmortizationPercentagePrincipal
Namespace Prefix: | nus_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LongtermDebtCurrentAndNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nus_CreditAgreementDated20180418Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nus_TermLoanFacilityDated20180418Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nus_RevolvingCreditFacilityDated20180418Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |