Nature of Operations and Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Aug. 31, 2015	Feb. 07, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash to be received by shareholders, per share		$ 9.50
Adjustments for New Accounting Principle, Early Adoption [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase (Decrease) In Noncurrent Deferred Tax Assets	$ 64.7
Increase (Decrease) In Noncurrent Deferred Tax Liabilities	$ (3.7)