Income Taxes (Schedule Of Significant Components Of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2015
Income Taxes [Abstract]
Federal, Current	$ 7,873	$ 10,570	$ 15,908
State, Current	781	976	1,426
Foreign, Current	4,785	3,230	2,830
Total Current	13,439	14,776	20,164
Federal, Deferred	(688)	(5,456)	(406)
State, Deferred	(43)	(268)	45
Foreign, Deferred	(172)	(31)	639
Total Deferred	(903)	(5,755)	278
Total income tax provision	$ 12,536	$ 9,021	$ 20,442