Income Taxes (Significant Components Of Deferred Tax Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2014	Aug. 31, 2013
Income Taxes [Abstract]
Sale and financing of corporate headquarters	$ 9,951	$ 10,289
Foreign income tax credit carryforward	8,025	5,423
Unearned revenue	2,253	2,257
Share-based compensation	1,258	2,405
Bonus and other accruals	994	1,430
Inventory and bad debt reserves	847	731
Other	671	1,089
Total deferred income tax assets	23,999	23,624
Net deferred income tax assets	23,999	23,624
Intangible step-ups indefinite lived	(8,475)	(8,418)
Intangible step-ups definite lived	(7,075)	(7,580)
Property and equipment depreciation	(3,854)	(4,290)
Intangible asset impairment and amortization	(5,157)	(4,614)
Unremitted earnings of foreign subsidiaries	(503)	(428)
Other	(80)	(63)
Total deferred income tax liabilities	(25,144)	(25,393)
Net deferred income taxes	$ (1,145)	$ (1,769)