Note 15 - Income Taxes (Details) - Components of the Provision for Income Taxes (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013
Current
U.S. Federal			$ 58,300	$ 37,498
U.S. state and local			2,861	2,440
Non-U.S.			7,452	8,370
Total current taxes			68,613	48,308
Deferred
U.S. Federal			(631)	3,896
U.S. state and local			29	281
Non-U.S.			(296)	(128)
Total deferred taxes			(898)	4,049
Total provision for income taxes	$ 21,839	$ 18,631	$ 67,715	$ 52,357