Accumulated Other Comprehensive Income (Loss) (Roll Forward Of Balances In Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2011
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	$ (877)	$ 6,462
Current-period change	(1,439)	(7,339)	5,107
Balance	(2,316)	(877)	6,462
Defined Benefit Pension Plan Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	(2,547)	(2,139)
Current-period change	260	(408)
Balance	(2,287)	(2,547)
Unrealized Gain (Loss) On Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	(53)	(253)
Current-period change	53	200
Balance		(53)
Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance	1,723	8,854
Current-period change	(1,752)	(7,131)
Balance	(29)	1,723
Accumulated Other Comprehensive (Loss) Income [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Current-period change	$ (1,439)	$ (7,339)	$ 5,107