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| <link:definition> 40601 - Disclosure - Intangible Assets (Narrative) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureIntangibleAssetsScheduleOfGoodwillDetails" id="DisclosureIntangibleAssetsScheduleOfGoodwillDetails"> |
| <link:definition> 40602 - Disclosure - Intangible Assets (Schedule Of Goodwill) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureLineOfCreditDetails" id="DisclosureLineOfCreditDetails"> |
| <link:definition> 40801 - Disclosure - Line Of Credit (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureCommitmentsAndContingenciesNarrativeDetails" id="DisclosureCommitmentsAndContingenciesNarrativeDetails"> |
| <link:definition> 40901 - Disclosure - Commitments And Contingencies (Narrative) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureEquityBasedCompensationNarrativeDetails" id="DisclosureEquityBasedCompensationNarrativeDetails"> |
| <link:definition> 41001 - Disclosure - Equity-Based Compensation (Narrative) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureEquityBasedCompensationScheduleOfFairValueAssumptionsDetails" id="DisclosureEquityBasedCompensationScheduleOfFairValueAssumptionsDetails"> |
| <link:definition> 41003 - Disclosure - Equity-Based Compensation (Schedule Of Fair Value Assumptions) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureEquityBasedCompensationScheduleOfStockSettledStockAppreciationRightsActivityDetails" id="DisclosureEquityBasedCompensationScheduleOfStockSettledStockAppreciationRightsActivityDetails"> |
| <link:definition> 41004 - Disclosure - Equity-Based Compensation (Schedule Of Stock-Settled Stock Appreciation Rights Activity) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureEquityBasedCompensationScheduleOfRestrictedStockUnitActivityDetails" id="DisclosureEquityBasedCompensationScheduleOfRestrictedStockUnitActivityDetails"> |
| <link:definition> 41005 - Disclosure - Equity-Based Compensation (Schedule Of Restricted Stock Unit Activity) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureEquityBasedCompensationScheduleOfDeferredStockUnitActivityDetails" id="DisclosureEquityBasedCompensationScheduleOfDeferredStockUnitActivityDetails"> |
| <link:definition> 41006 - Disclosure - Equity-Based Compensation (Schedule Of Deferred Stock Unit Activity) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureSegmentInformationNarrativeDetails" id="DisclosureSegmentInformationNarrativeDetails"> |
| <link:definition> 41101 - Disclosure - Segment Information (Narrative) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureSegmentInformationScheduleOfRevenuePercentageByProductDetails" id="DisclosureSegmentInformationScheduleOfRevenuePercentageByProductDetails"> |
| <link:definition> 41102 - Disclosure - Segment Information (Schedule Of Revenue Percentage By Product) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureSegmentInformationScheduleOfRevenuesFromExternalCustomersByGeographicalAreasDetails" id="DisclosureSegmentInformationScheduleOfRevenuesFromExternalCustomersByGeographicalAreasDetails"> |
| <link:definition> 41103 - Disclosure - Segment Information (Schedule Of Revenues From External Customers By Geographical Areas) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureSegmentInformationScheduleOfLongLivedAssetsByGeographicRegionDetails" id="DisclosureSegmentInformationScheduleOfLongLivedAssetsByGeographicRegionDetails"> |
| <link:definition> 41104 - Disclosure - Segment Information (Schedule Of Long-Lived Assets By Geographic Region) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureSegmentInformationConsolidatedNetSalesAndLongLivedAssetsDetails" id="DisclosureSegmentInformationConsolidatedNetSalesAndLongLivedAssetsDetails"> |
| <link:definition> 41105 - Disclosure - Segment Information (Consolidated Net Sales And Long Lived Assets) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureQuarterlyFinancialResultsSummaryOfQuarterlyFinancialInformationDetails" id="DisclosureQuarterlyFinancialResultsSummaryOfQuarterlyFinancialInformationDetails"> |
| <link:definition> 41201 - Disclosure - Quarterly Financial Results (Summary Of Quarterly Financial Information) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureEarningsPerShareScheduleOfEarningsPerShareDetails" id="DisclosureEarningsPerShareScheduleOfEarningsPerShareDetails"> |
| <link:definition> 41302 - Disclosure - Earnings Per Share (Schedule Of Earnings Per Share) (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/DisclosureRelatedPartyTransactionsDetails" id="DisclosureRelatedPartyTransactionsDetails"> |
| <link:definition> 41401 - Disclosure - Related Party Transactions (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://www.usanahealthsciences.com/2010-10-02/role/ScheduleValuationAndQualifyingAccountsDetails" id="ScheduleValuationAndQualifyingAccountsDetails"> |
| <link:definition> 41601 - Schedule - Valuation And Qualifying Accounts (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:linkbaseRef xlink:type="simple" xlink:href="usna-20171230_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links, all"/> |
| | | <link:linkbaseRef xlink:type="simple" xlink:href="usna-20171230_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links, all"/> |
| | | <link:linkbaseRef xlink:type="simple" xlink:href="usna-20171230_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links, all"/> |
| | | <link:linkbaseRef xlink:type="simple" xlink:href="usna-20171230_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links, all"/> |
| | | </appinfo> |
| | </annotation> |
| <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/> |
| <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/> |
| <import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd"/> |
| <import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd"/> |
| <import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd"/> |
| <import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd"/> |
| <import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd"/> |
| <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/> |
| <import namespace="http://fasb.org/us-gaap/2017-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd"/> |
| <import namespace="http://xbrl.sec.gov/country/2017-01-31" schemaLocation="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd"/> |
| <element id="usna_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration"/> |
| <element id="usna_AssociateIncentives" name="AssociateIncentives" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit"/> |
| <element id="usna_UsanaNutritionalsMember" name="UsanaNutritionalsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_UsanaFoodsMember" name="UsanaFoodsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_SenseBeautifulScienceMember" name="SenseBeautifulScienceMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_SoutheastAsiaAndPacificMember" name="SoutheastAsiaAndPacificMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_GreaterChinaMember" name="GreaterChinaMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_NorthAsiaMember" name="NorthAsiaMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_PercentageOfProductRevenue" name="PercentageOfProductRevenue" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_AmericasAndEuropeMember" name="AmericasAndEuropeMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_NumberOfGeographicRegions" name="NumberOfGeographicRegions" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_LineOfCreditFacilityIncreaseDecreaseInBorrowingCapacity" name="LineOfCreditFacilityIncreaseDecreaseInBorrowingCapacity" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit"/> |
| <element id="usna_OfficersUponHireOrPromotionMember" name="OfficersUponHireOrPromotionMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentage" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentage" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationTerm" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationTerm" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedNextTwelveMonths" name="EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedNextTwelveMonths" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit"/> |
| <element id="usna_EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedYearTwo" name="EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedYearTwo" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit"/> |
| <element id="usna_EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedYearThree" name="EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedYearThree" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit"/> |
| <element id="usna_EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedYearFour" name="EmployeeServiceShareBasedCompensationNonvestedAwardsCompensationCostNotYetRecognizedYearFour" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit"/> |
| <element id="usna_ClosingPriceOfCommonStock" name="ClosingPriceOfCommonStock" nillable="true" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant"/> |
| <element id="usna_NumberOfSubGeographicalRegions" name="NumberOfSubGeographicalRegions" nillable="true" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_CommitmentsAndContingenciesTable" name="CommitmentsAndContingenciesTable" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" xbrli:periodType="duration"/> |
| <element id="usna_CommitmentsAndContingenciesLineItems" name="CommitmentsAndContingenciesLineItems" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration"/> |
| <element id="usna_LeaseExpirationYear" name="LeaseExpirationYear" nillable="true" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DefinedContributionPlanMinimumAgeOfEmployee" name="DefinedContributionPlanMinimumAgeOfEmployee" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DefinedContributionPlanRequisiteServicePeriod" name="DefinedContributionPlanRequisiteServicePeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DefinedContributionPlanEmployerMatchingContributionMatchPercentage" name="DefinedContributionPlanEmployerMatchingContributionMatchPercentage" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DefinedContributionPlanEmployerMatchingContributionMatchPercentExceedingInitialMatch" name="DefinedContributionPlanEmployerMatchingContributionMatchPercentExceedingInitialMatch" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DefinedBenefitPlanCliffVestingPeriod" name="DefinedBenefitPlanCliffVestingPeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DefinedContributionPlanEmployerContributionAmount" name="DefinedContributionPlanEmployerContributionAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit"/> |
| <element id="usna_NonfinancialAssetsFairValueDisclosure" name="NonfinancialAssetsFairValueDisclosure" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit"/> |
| <element id="usna_FairValueAssetsAndLiabilitiesLevel1BetweenLevel2TransfersAmount" name="FairValueAssetsAndLiabilitiesLevel1BetweenLevel2TransfersAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit"/> |
| <element id="usna_ShareBasedCompensationArrangementsTaxBenefit" name="ShareBasedCompensationArrangementsTaxBenefit" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit"/> |
| <element id="usna_NontradeReceivablesPolicyPolicyTextBlock" name="NontradeReceivablesPolicyPolicyTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_SelfInsurancePolicyTextBlock" name="SelfInsurancePolicyTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ProductReturnPolicyPolicyTextBlock" name="ProductReturnPolicyPolicyTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_AssociateIncentivesPolicyTextBlock" name="AssociateIncentivesPolicyTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ScheduleOfOtherLiabilitiesTableTextBlock" name="ScheduleOfOtherLiabilitiesTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_SummaryOfSignificantAccountingPoliciesTable" name="SummaryOfSignificantAccountingPoliciesTable" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" xbrli:periodType="duration"/> |
| <element id="usna_ManufacturingCreditsMember" name="ManufacturingCreditsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_SummaryOfSignificantAccountingPoliciesLineItems" name="SummaryOfSignificantAccountingPoliciesLineItems" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration"/> |
| <element id="usna_MaximumAmountOfIndividualClaimsBeforeInsuranceReimbursement" name="MaximumAmountOfIndividualClaimsBeforeInsuranceReimbursement" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit"/> |
| <element id="usna_AccountRenewalFeeRecognitionPeriod" name="AccountRenewalFeeRecognitionPeriod" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DurationOfProductReturnFirstOrder" name="DurationOfProductReturnFirstOrder" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DurationOfProductReturn" name="DurationOfProductReturn" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ProductReturnPolicyPercentageRefunded" name="ProductReturnPolicyPercentageRefunded" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ProductReturnPolicyAmountOfReturnedProductWhichCouldResultInCancellationOfDistributorship" name="ProductReturnPolicyAmountOfReturnedProductWhichCouldResultInCancellationOfDistributorship" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit"/> |
| <element id="usna_ProductReturnPercentageOfNetSales" name="ProductReturnPercentageOfNetSales" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DeferredIncomeTaxExpenseBenefitNet" name="DeferredIncomeTaxExpenseBenefitNet" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit"/> |
| <element id="usna_DepositsAndProjectsInProcessMember" name="DepositsAndProjectsInProcessMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_PropertyPlantAndEquipmentNetExcludingNonDepreciable" name="PropertyPlantAndEquipmentNetExcludingNonDepreciable" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit"/> |
| <element id="usna_AssociateIncentivesPayable" name="AssociateIncentivesPayable" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit"/> |
| <element id="usna_AssociatePromotionsLiabilityCurrent" name="AssociatePromotionsLiabilityCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit"/> |
| <element id="usna_ProvisionForReturnsAndAllowancesLiabilityCurrent" name="ProvisionForReturnsAndAllowancesLiabilityCurrent" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit"/> |
| <element id="usna_AllOtherCurrentLiabilities" name="AllOtherCurrentLiabilities" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit"/> |
| <element id="usna_NorthAmericaAndEuropeMember" name="NorthAmericaAndEuropeMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_PrincipalOwnerBeneficialOwnershipPercentage" name="PrincipalOwnerBeneficialOwnershipPercentage" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_TwoThousandFifteenIncentiveStockPlanMember" name="TwoThousandFifteenIncentiveStockPlanMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ScheduleOfFiniteAndIndefiniteIntangibleAssetsTable" name="ScheduleOfFiniteAndIndefiniteIntangibleAssetsTable" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" abstract="true" xbrli:periodType="duration"/> |
| <element id="usna_TradeNameAndTrademarksMember" name="TradeNameAndTrademarksMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ScheduleOfFiniteAndIndefiniteIntangibleAssetsLineItems" name="ScheduleOfFiniteAndIndefiniteIntangibleAssetsLineItems" nillable="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration"/> |
| <element id="usna_NotesReceivableMaturityDate" name="NotesReceivableMaturityDate" nillable="true" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_TwoThousandSixIncentiveStockPlanMember" name="TwoThousandSixIncentiveStockPlanMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ShareBasedCompensationArrangementByShareBasedPaymentAwardPostVestingHoldingPercentage" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPostVestingHoldingPercentage" nillable="true" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_AccruedPurchasesOfPropertyAndEquipment" name="AccruedPurchasesOfPropertyAndEquipment" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit"/> |
| <element id="usna_AmendedAndRestatedCreditAgreementMember" name="AmendedAndRestatedCreditAgreementMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DebtInstrumentCovenantAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" name="DebtInstrumentCovenantAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit"/> |
| <element id="usna_OperatingLossCarryforwardsExpirationYear" name="OperatingLossCarryforwardsExpirationYear" nillable="true" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DebtInstrumentCovenantRatioOfConsolidatedFundedDebtToAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" name="DebtInstrumentCovenantRatioOfConsolidatedFundedDebtToAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" nillable="true" type="xbrli:pureItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_OfficersAndEmployeesMember" name="OfficersAndEmployeesMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromSharedBasedAwardsOtherThanOptions" name="EmployeeServiceShareBasedCompensationTaxBenefitRealizedFromSharedBasedAwardsOtherThanOptions" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit"/> |
| <element id="usna_MedicisMember" name="MedicisMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DriveMarketingMember" name="DriveMarketingMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_AccountsAndNotesReceivableGross" name="AccountsAndNotesReceivableGross" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit"/> |
| <element id="usna_ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock" name="ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_DeferredTaxLiabilitiesWithholdingTaxOnUnremittedEarnings" name="DeferredTaxLiabilitiesWithholdingTaxOnUnremittedEarnings" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit"/> |
| <element id="usna_DeferredStockUnitsMember" name="DeferredStockUnitsMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit" name="TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalIncomeTaxExpenseBenefit" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit"/> |
| <element id="usna_TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit" name="TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit"/> |
| <element id="usna_TaxCutsAndJobsActOf2017IncompleteAccountingRepatriationTax" name="TaxCutsAndJobsActOf2017IncompleteAccountingRepatriationTax" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit"/> |
| <element id="usna_DeferredTaxAssetsValuationAllowanceForeign" name="DeferredTaxAssetsValuationAllowanceForeign" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit"/> |
| <element id="usna_DeferredTaxAssetsValuationAllowanceResearch" name="DeferredTaxAssetsValuationAllowanceResearch" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit"/> |
| <element id="usna_DeferredTaxAssetsValuationAllowanceMirrored" name="DeferredTaxAssetsValuationAllowanceMirrored" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit"/> |
| <element id="usna_DeferredTaxAssetsTaxCreditCarryforwardsForeignUnlimited" name="DeferredTaxAssetsTaxCreditCarryforwardsForeignUnlimited" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit"/> |
| <element id="usna_DomesticAndForeignTaxAuthorityMember" name="DomesticAndForeignTaxAuthorityMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_CommonStockShareRepurchasesPolicyTextBlock" name="CommonStockShareRepurchasesPolicyTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndUnreleasedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedAndUnreleasedInPeriod" nillable="true" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_ShaneFarmerOwnerOfDarkHorseRowingLlcMember" name="ShaneFarmerOwnerOfDarkHorseRowingLlcMember" nillable="true" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| <element id="usna_MinimumAmountOfProjectedAggregateClaimsBeforeInsuranceReimbursement" name="MinimumAmountOfProjectedAggregateClaimsBeforeInsuranceReimbursement" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit"/> |
| <element id="usna_ScheduleOfDeferredStockAwardsActivityTableTextBlock" name="ScheduleOfDeferredStockAwardsActivityTableTextBlock" nillable="true" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration"/> |
| </schema> |