Basis of Presentation (Details Textual) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2015	Feb. 28, 2014
Basis Of Presentation [Line Items]
Corporate Office Costs	$ 1.1	$ 1.0	$ 2.0	$ 1.9