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Share-Based Compensation - Summary of Activity Under Share-Based Compensation Plans (Parenthetical) (Detail)
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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| Market and performance condition awards [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Outstanding SARs |
0.9hlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockAppreciationRightsOutstandingNumber / us-gaap_AwardTypeAxis = hlf_MarketAndPerformanceConditionAwardsMember |
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| Forfeited SARs |
0.9hlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockAppreciationRightsForfeitedInPeriod / us-gaap_AwardTypeAxis = hlf_MarketAndPerformanceConditionAwardsMember |
|
| Market condition awards [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Outstanding SARs |
1.5hlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockAppreciationRightsOutstandingNumber / us-gaap_AwardTypeAxis = hlf_MarketConditionAwardsMember |
1.5hlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockAppreciationRightsOutstandingNumber / us-gaap_AwardTypeAxis = hlf_MarketConditionAwardsMember |
| Exercisable SARs |
1.5hlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockAppreciationRightsExercisableNumber / us-gaap_AwardTypeAxis = hlf_MarketConditionAwardsMember |
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| Performance condition SARs [Member] | ||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
| Outstanding SARs |
1.0hlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockAppreciationRightsOutstandingNumber / us-gaap_AwardTypeAxis = hlf_PerformanceConditionAwardsMember |
0.4hlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockAppreciationRightsOutstandingNumber / us-gaap_AwardTypeAxis = hlf_PerformanceConditionAwardsMember |
| Exercisable SARs |
0.1hlf_ShareBasedCompensationArrangementByShareBasedPaymentAwardStockAppreciationRightsExercisableNumber / us-gaap_AwardTypeAxis = hlf_PerformanceConditionAwardsMember |
| X | ||||||||||
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- Definition
The number of exercisable stock appreciation rights (SARs). No definition available.
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| X | ||||||||||
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- Definition
Share Based Compensation Arrangement By Share Based Payment Award Stock Appreciation Rights Forfeited In Period No definition available.
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| X | ||||||||||
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- Definition
The number of outstanding stock appreciation rights (SARs). No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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- Details
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