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Leases - Summary of Annual Scheduled Lease Payments (Parenthetical) (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($)
Leases [Abstract] |
Operating lease legally binding minimum payments for leases not yet commenced | $ 3.8

X
- Definition Lessee operating minimum lease payment. + References No definition available. + Details
Name: | hlf_LesseeOperatingMinimumLeasePayment
Namespace Prefix: | hlf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration