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Basis Of Presentation And Summary Of Significant Accounting Policies (Foreign Currency) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2016
Foreign Currency Transactions [Line Items]
Foreign currency transactions gain (loss), before tax	$ 100	$ 400	$ 2,400
Foreign currency forward contracts outstanding	23,100
Unrealized net losses	$ (302)	364	$ (986)
Foreign Currency Forward Contracts [Member]
Foreign Currency Transactions [Line Items]
Unrealized net losses		600
Realized net losses		$ 500

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-Publisher SEC
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-Number 210
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