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Investment In FC Organizational Products (Narrative) (Details) - FCOP [Member] - USD ($)
$ in Millions
9 Months Ended
May 31, 2019
Feb. 28, 2019
Aug. 31, 2018
Related Party Transaction [Line Items]      
Percent ownership interest in related party 19.50%    
Cash from related parties $ 1.4    
Discount on receivable from related party   $ 0.2 $ 0.3