Financial Instruments and Risk Management - Interest Rate Risk (Details) - Credit Agreement $ in Millions	May 31, 2018 USD ($)
Financial instruments and risk management
Fixed rate debt	$ 100.0
Floating rate debt	$ 281.3

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.

No definition available.

Name:	hele_DebtPercentageBearingVariableInterestAmount
Namespace Prefix:	hele_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant