Derivative Instruments - Additional Information (Detail)	9 Months Ended
	May 31, 2016 USD ($)
Foreign Exchange Contracts
Derivative [Line Items]
Aggregate derivative notional amount	$ 429,700,000
Interest rate swap contracts
Derivative [Line Items]
Aggregate derivative notional amount	$ 93,000,000
Maturity date	2020-03
Unrealized Pre-tax gain (loss) that would be reclassified to interest expense in the next 12 months	$ 1,400,000