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Special Charges (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	May 31, 2023	Feb. 28, 2023	Nov. 30, 2022	May 31, 2022	May 31, 2023	May 31, 2022
Restructuring Cost and Reserve [Line Items]
Special charges	$ 0.0	$ 0.0	$ 6.9	$ 0.0	$ 6.9	$ 0.0
Operating lease, impairment loss			4.3
Employee Severance and Other Costs
Restructuring Cost and Reserve [Line Items]
Special charges			$ 2.6

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- Definition

Amount of loss from impairment of right-of-use asset from operating lease.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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