Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013
Income Taxes [Abstract]
Balance at beginning of year	$ 2,583	$ 5,451
Additions based on tax positions related to the current year	255	628
Additions for tax positions of prior years	115	960
Reductions for tax positions of prior years	(492)	(3,816)
Reductions due to statute expiration		(640)
Balance at end of year	$ 2,461	$ 2,583