Derivative Financial Instruments and Hedging Activities - Schedule of Derivative Instruments in Statement of Financial Position, Fair Value (Details) - USD ($) $ in Thousands	May 31, 2020	Aug. 31, 2019
Derivative [Line Items]
Derivative Assets	$ 409,662	$ 246,728
Derivative Liabilities	375,467	244,019
Designated as Hedging Instrument \| Other Assets [Member] \| Interest rate swap derivatives
Derivative [Line Items]
Derivative Assets	$ 0	$ 9,841

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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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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