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Income Taxes - Changes Occurred in Amount of Unrecognized Tax Benefits (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Income Tax Disclosure [Abstract] | |||
| Beginning balance of unrecognized tax benefits | $ 29.9us-gaap_UnrecognizedTaxBenefits | $ 39.7us-gaap_UnrecognizedTaxBenefits | $ 32.4us-gaap_UnrecognizedTaxBenefits |
| Additions for current year tax positions | 9.4us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions | 10.3us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions | 7.8us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions |
| Additions for prior year tax positions | 6.1us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions | 4.1us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions | 4.5us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions |
| Reductions for prior year tax positions | (1.0)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions | (3.9)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions | (0.1)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions |
| Reductions for audit settlements | (0.1)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities | (10.0)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities | (0.3)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities |
| Reductions for the expiration of statutes of limitation | (2.5)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations | (8.4)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations | (4.9)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations |
| Changes due to foreign currency translation adjustments | (1.3)hlf_UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromForeignCurrencyTranslation | (1.9)hlf_UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromForeignCurrencyTranslation | 0.3hlf_UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromForeignCurrencyTranslation |
| Ending balance of unrecognized tax benefits (excluding interest and penalties) | 40.5us-gaap_UnrecognizedTaxBenefits | 29.9us-gaap_UnrecognizedTaxBenefits | 39.7us-gaap_UnrecognizedTaxBenefits |
| Interest and penalties associated with unrecognized tax benefits | 6.7hlf_UnrecognizedTaxBenefitsGrossInterestAndPenalties | 4.7hlf_UnrecognizedTaxBenefitsGrossInterestAndPenalties | 7.4hlf_UnrecognizedTaxBenefitsGrossInterestAndPenalties |
| Ending balance of unrecognized tax benefits (including interest and penalties) | $ 47.2hlf_GrossBalanceOfUnrecognizedTaxBenefitsIncludingInterestAndPenalties | $ 34.6hlf_GrossBalanceOfUnrecognizedTaxBenefitsIncludingInterestAndPenalties | $ 47.1hlf_GrossBalanceOfUnrecognizedTaxBenefitsIncludingInterestAndPenalties |
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- Definition
Gross Balance Of Unrecognized Tax Benefits Including Interest And Penalties No definition available.
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- Definition
Unrecognized tax benefits gross interest and penalties. No definition available.
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- Definition
Unrecognized Tax Benefits Increase Decrease Resulting From Foreign Currency Translation No definition available.
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- Details
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- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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