Derivative Instruments - Fair Values of Derivative Instruments (Detail) - USD ($) $ in Thousands	Aug. 31, 2018	Aug. 31, 2017
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 1,481	$ 2,341
Designated as Hedging Instrument \| Accounts Payable and Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	1,212	2,886
Designated as Hedging Instrument \| Foreign Exchange Contracts \| Accounts Receivable
Derivatives, Fair Value [Line Items]
Asset Derivatives	700	2,341
Designated as Hedging Instrument \| Foreign Exchange Contracts \| Accounts Payable and Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	1,211	1,761
Designated as Hedging Instrument \| Interest rate swap contracts \| Accounts Payable and Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	1	1,125
Designated as Hedging Instrument \| Interest rate swap contracts \| Intangibles and Other Assets, Net
Derivatives, Fair Value [Line Items]
Asset Derivatives	781
Not Designated as Hedging Instrument \| Foreign Exchange Contracts \| Accounts Receivable
Derivatives, Fair Value [Line Items]
Asset Derivatives	76	$ 1,473
Not Designated as Hedging Instrument \| Foreign Exchange Contracts \| Accounts Payable and Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ 354

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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