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Investment In FC Organizational Products (Narrative) (Details) - FC Organizational Products [Member] - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
May 28, 2016
Aug. 31, 2016
Aug. 31, 2015
Related Party Transaction [Line Items]      
Percent ownership interest in related party 19.50%    
Receivable from related party $ 3.2   $ 4.0
Discount on receivable from related party $ 0.9   $ 1.0
Discount rate on long-term receivable from related party 15.00%    
Scenario, Forecast [Member]      
Related Party Transaction [Line Items]      
Cash received from related party   $ 2.7