Basis of Presentation (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2014	May 31, 2013
Basis Of Presentation [Line Items]
Corporate Office Costs	$ 1.0	$ 0.9	$ 2.8	$ 4.3