Accumulated Other Comprehensive Loss (Schedule Of Accumulated Other Comprehensive Loss ) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2014
Accumulated Other Comprehensive Loss [Abstract]
Defined benefit pension plan, net of tax benefit of $1,648 and $1,540	$ (2,781)	$ (2,523)
Foreign currency translation, net of hedging activities, net of tax expense of $3,287 and $3,154	(11,391)	(12,785)
Total accumulated other comprehensive loss	(14,172)	(15,308)	$ (2,201)
Defined benefit pension tax	1,648	1,540
Foreign currency adjustment tax	$ 3,287	$ 3,154