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Derivative Instruments - Effect of Derivative Instruments on Statements of Income (Detail) - Cash Flow Hedging - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives	$ (1,445)	$ (10,084)
Gain (loss) reclassified from accumulated OCI into income	(6,669)	(5,641)
Gain (loss) recognized on derivative (amount excluded from effectiveness testing)	726	1,509
Foreign Exchange Forward | Interest and Foreign Exchange
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income on derivatives	(70)	83
Foreign Exchange Forward | Sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives	(1,976)	461
Gain (loss) reclassified from accumulated OCI into income	(1,330)	(748)
Gain (loss) recognized on derivative (amount excluded from effectiveness testing)	602	996
Foreign Exchange Forward | Cost Of Revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives	(37)	(2,238)
Gain (loss) reclassified from accumulated OCI into income	(78)	(2,236)
Gain (loss) recognized on derivative (amount excluded from effectiveness testing)	124	513
Interest rate swap contracts | Interest and Foreign Exchange
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI on derivatives	568	(8,307)
Gain (loss) reclassified from accumulated OCI into income	$ (5,261)	$ (2,657)

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

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-Publisher FASB
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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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