Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2021
Statement of Comprehensive Income [Abstract]
Reclassification of derivative financial instruments recognized in net earnings (loss), tax	$ 3.7	$ (1.7)	$ (1.7)
Unrealized gain (loss) on derivative financial instruments, tax	$ (8.8)	$ (6.2)	$ 1.0

Amount of tax expense (benefit) for reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-12

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration