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Transformation Program - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Restructuring Cost and Reserve [Line Items] |  |
Total cost of transformation program | $ 12.1 | $ 12.9
Minimum [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected Pre-tax charges | $ 25.0 | $ 60.0

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- Definition Pre-tax Charge, Total + References No definition available. + Details
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Namespace Prefix: | hlf_
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- Definition Total cost of transformation program. + References No definition available. + Details
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Namespace Prefix: | hlf_
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Balance Type: | debit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |