Note 15. Income Taxes (Detail) - Components of the Provision for Income Taxes (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Feb. 28, 2013	Feb. 29, 2012
Current
U.S. federal	$ 28,205	$ 35,702
U.S. state and local	2,408	2,114
Non-U.S.	5,612	4,497
Total current taxes	36,225	42,313
Deferred
U.S. federal	(2,179)	278
U.S. state and local	(106)	(24)
Non-U.S.	(214)	(214)
Total deferred taxes	(2,499)	40
Total provision for income taxes	$ 33,726	$ 42,353