Accumulated Other Comprehensive Loss (Roll Forward Of Balances In Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	$ (15,308)	$ (2,201)
Current-period change	1,136	(13,107)	$ 115
Balance	(14,172)	(15,308)	(2,201)
Defined Benefit Pension Plan Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(2,523)	(2,497)
Current-period change	(258)	(26)
Balance	(2,781)	(2,523)	(2,497)
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(12,785)	296
Current-period change	1,394	(13,081)
Balance	$ (11,391)	$ (12,785)	$ 296