XML 89 R74.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Long-Term Debt, Credit Agreement (Details) $ in Thousands, ¥ in Billions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2017 USD ($) | Dec. 31, 2017 JPY (¥) | Dec. 31, 2016 USD ($) | Dec. 31, 2016 JPY (¥) | Oct. 09, 2014 USD ($) | Oct. 09, 2014 JPY (¥)
Long-term Debt [Abstract] |  |  |  |  |  |  |  |  |
Outstanding balance | [1] | $ 401,768 |  |  |  |  |  |  |
Credit Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |  |
Consolidated leverage ratio |  | 2.25 |  |  |  |  |  |  |
Credit Agreement [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |  |
Consolidated interest coverage ratio |  | 3.00 |  |  |  |  |  |  |
Term Loan Facility [Member] |  |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |  |
Original principal amount |  | $ 127,500 |  |  |  |  |  | $ 127,500 |
Term of loan |  | 5 years |  |  |  |  |  |  |
Outstanding balance |  | $ 94,800 | [2],[3] |  |  | $ 108,400 |  |  |
Japanese Yen Term Loan Facility [Member] |  |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |  |
Original principal amount | ¥ |  |  |  | ¥ 6.6 |  |  |  |  | ¥ 6.6
Term of loan |  | 5 years |  |  |  |  |  |  |
Outstanding balance |  | $ 43,500 | [2],[3] | ¥ 4.9 | [2],[3] | 47,900 | ¥ 5.6 |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |  |
Borrowing capacity |  |  |  |  |  |  |  | $ 187,500 |
Term of loan |  | 5 years |  |  |  |  |  |  |
Outstanding balance |  | $ 47,500 | [2],[3] |  |  | $ 47,500 |  |  |
[1] | The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $13.1 million, which is not reflected in this table.
[2] | As of December 31, 2017, the current portion of the Company's debt (i.e. becoming due in the next 12 months) included $16.7 million of the balance of its U.S. dollar denominated debt under the Credit Agreement facility, $7.7 million of the balance of its Japanese yen-denominated debt under the Credit Agreement facility and $5.9 million of the Japan subsidiary loan. The Company has classified the $47.5 million borrowed under the revolving line of credit as short term because it is the Company's intention to use the line of credit to borrow and pay back funds over short periods of time.
[3] | The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $9.1 million and debt issuance costs of $4.0 million (consisting of $11.1 million related to the Convertible Note and $2.0 million related to the credit agreement), which is not reflected in this table.

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 Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + 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://www.xbrl.org/2003/role/presentationRef -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_LongTermDebtByCurrentAndNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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