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Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
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Mar. 31, 2015
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Mar. 31, 2014
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| Income Tax Disclosure [Abstract] | ||
| Income taxes | $ 33.6us-gaap_IncomeTaxExpenseBenefit | $ 34.8us-gaap_IncomeTaxExpenseBenefit |
| Effective income tax rate | 30.10%us-gaap_EffectiveIncomeTaxRateContinuingOperations | 31.80%us-gaap_EffectiveIncomeTaxRateContinuingOperations |
| Total amount of unrecognized tax benefits, including related interest and penalties | 50.6hlf_GrossBalanceOfUnrecognizedTaxBenefitsIncludingInterestAndPenalties | |
| Unrecognized tax benefits excluding interest and penalties that if recognized would affect the effective tax rate | 40.5us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate | |
| Total accrued interest for tax contingencies | 6.1us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued | |
| Total accrued penalties for tax contingencies | 1.3us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued | |
| Amount of unrecognized tax benefits that could decrease within the next 12 months | 10.8us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleEstimatedRangeOfChangeUpperBound | |
| Decrease in unrecognized tax benefits due to the settlement of audits or resolution of administrative or judicial proceedings | 6.2hlf_DecreaseInUnrecognizedTaxBenefitsDueToSettlementOfAuditsOrResolutionOfAdministrativeOrJudicialProceedings | |
| Decrease in unrecognized tax benefits expiration of statute of limitations | $ 4.6hlf_DecreaseInUnrecognizedTaxBenefitsExpirationOfStatuteOfLimitations | |
| X | ||||||||||
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- Definition
Estimated decrease in unrecognized tax benefits within the next twelve months due to settlement of audits or resolution of administrative or judicial proceedings. No definition available.
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| X | ||||||||||
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- Definition
Estimated decrease in unrecognized tax benefits within the next twelve months due to expiration of statute of limitations. No definition available.
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| X | ||||||||||
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- Definition
Gross Balance Of Unrecognized Tax Benefits Including Interest And Penalties No definition available.
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| X | ||||||||||
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- Definition
Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of (increase) decrease reasonably possible in the estimated upper bound of the unrecognized tax benefit for a tax position taken or expected to be taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of interest expense accrued for an underpayment of income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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