Derivative Financial Instruments and Hedging Activities (Fair Value of Derivative Instruments Recorded on Consolidated Statements of Operations) (Details) - Cost of revenue - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Feb. 29, 2020	Feb. 28, 2019	Feb. 29, 2020	Feb. 28, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency loss	$ 7,600	$ 57,100	$ 36,400	$ 52,600
Forward foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain Recognized in Net Income on Derivatives	$ 6,801	$ 49,794	$ 33,518	$ 42,808

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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