Investment In FC Organizational Products (Narrative) (Details) - FC Organizational Products [Member] - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	May 31, 2017	May 31, 2017	Aug. 31, 2016
Related Party Transaction [Line Items]
Percent ownership interest in related party	19.50%	19.50%
Receivable from related party	$ 1.7	$ 1.7	$ 3.2
Discount on receivable from related party	0.7	$ 0.7	$ 0.8
Discount rate on long-term receivable from related party		15.00%
Cash from related parties	$ 1.4	$ 2.1