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Segment Information - Summary of Geographic Information (Detail) - USD ($) $ in Millions		12 Months Ended
		Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue		$ 3,240.2	$ 3,544.7	$ 3,944.0
Assets		4,360.6	4,254.5	3,978.4
U.S.
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	[1]	2,431.3	2,787.5	3,235.3
Assets		2,994.3	2,775.4	2,593.4
Foreign
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	[1]	808.9	757.2	708.7
Mexico
Segment Reporting, Revenue Reconciling Item [Line Items]
Assets		1,019.7	1,145.3	1,084.3
Europe
Segment Reporting, Revenue Reconciling Item [Line Items]
Assets		$ 346.6	$ 333.8	$ 300.7
[1] Revenue is presented on the basis of geographic location of customers.

X

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