Derivative Instruments (Tables)

12 Months Ended

Aug. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Values of Derivative Instruments

Fair Values of Derivative Instruments

	Asset Derivatives					Liability Derivatives
		August 31,					August 31,
		2023		2022			2023		2022
(In millions)	Balance sheet caption	Fair Value		Fair Value		Balance sheet caption	Fair Value		Fair Value
Derivatives designated as hedging instruments
Foreign forward    exchange contracts	Accounts receivable, net	$	2.5	$	0.6	Accounts payable and accrued liabilities	$	0.1	$	2.9
Interest rate swap    contracts	Accounts receivable, net		34.9		20.8	Accounts payable and accrued liabilities		0.1		—
		$	37.4	$	21.4		$	0.2	$	2.9
Derivatives not designated as hedging instruments
Foreign forward    exchange contracts	Accounts receivable, net	$	0.5	$	—	Accounts payable and accrued liabilities	$	—	$	0.1

Effect of Derivative Instruments on the Statements of Income

The Effect of Derivative Instruments on the Consolidated Statements of Income

Derivatives in cash flow hedging relationships	Location of gain (loss) recognized in income on derivative	Gain (loss) recognized in income on derivatives Years ended August 31,
		2023		2022
Foreign forward exchange contract	Interest and foreign exchange	$	—	$	(0.3	)

Derivatives in cash flow hedging relationships	Gain (loss) recognized in OCI on derivatives Years ended August 31,					Location of  gain (loss) reclassified from accumulated OCI into income	Gain (loss) reclassified from accumulated OCI into income Years ended August 31,						Location of gain (loss) in income on derivative (amount excluded from effectiveness testing)	Gain (loss) recognized on derivative (amount excluded from effectiveness testing) Years ended August 31,
	2023		2022				2023			2022				2023		2022
Foreign forward    exchange contracts	$	5.6	$	(4.7	)	Revenue	$	(0.2	)	$	(1.5	)	Revenue	$	2.0	$	0.9
Foreign forward    exchange contracts		2.0		0.5		Cost of revenue		2.2			0.3		Cost of revenue		0.6		0.7
Interest rate swap    contracts		24.8		26.1		Interest and foreign exchange		10.8			(4.9	)	Interest and    foreign    exchange	—		—
	$	32.4	$	21.9			$	12.8		$	(6.1	)		$	2.6	$	1.6

Effects of Cash Flow Hedges Included in Statements of Income

The following table presents the amounts in the Consolidated Statements of Income in which the effects of the cash flow hedges are recorded and the effects of the cash flow hedge activity on these line items for the years ended August 31, 2023, 2022 and 2021:

	For the Year Ended August 31,
	2023					2022					2021
(In millions)	Total		Amount of gain (loss) on cash flow hedge activity			Total		Amount of gain (loss) on cash flow hedge activity			Total		Amount of gain (loss) on cash flow hedge activity
Revenue	$	3,944.0	$	(0.2	)	$	2,977.7	$	(1.5	)	$	1,747.9	$	(1.3	)
Cost of revenue	$	3,502.9	$	2.2		$	2,671.7	$	0.3		$	1,516.3	$	(0.1	)
Interest and foreign exchange	$	85.4	$	10.8		$	57.4	$	(4.9	)	$	43.3	$	(5.3	)