Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.

+ References

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-SubTopic 10
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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.

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The amount of cash received during the period as refunds for the overpayment of taxes.

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Income Taxes and Other Taxes (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Aug. 31, 2021	Nov. 30, 2022	Nov. 30, 2021
Operating Loss Carryforwards [Line Items]
Effective income tax rate (percentage)	25.30%	23.20%		30.20%	21.10%
Tax Years 2015 to 2020
Operating Loss Carryforwards [Line Items]
Income taxes receivable	$ 20.0			$ 20.0
Employee Retention Credits
Operating Loss Carryforwards [Line Items]
Income taxes receivable	$ 10.1			$ 10.1
Carry Back of Net Operating Losses
Operating Loss Carryforwards [Line Items]
Proceeds from Income Tax Refunds			$ 63.1