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Financial Instruments and Risk Management - Interest Rate Risk (Details) - Credit agreement $ in Millions | May 31, 2019 USD ($)
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Financial instruments and risk management |
Fixed rate debt | $ 225.0
Floating rate debt | $ 303.2

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- Definition The portion of the aggregate carrying amount of short-term and long-term borrowings (including current maturities) outstanding as of the balance sheet date which accrues interest at a rate subject to change from time to time. + References No definition available. + Details
Name: | hele_DebtPercentageBearingVariableInterestAmount
Namespace Prefix: | hele_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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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
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. + References No definition available. + Details
Name: | us-gaap_LongtermDebtPercentageBearingFixedInterestAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |