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Subsequent Events (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 09, 2015
Oct. 31, 2014
Oct. 31, 2013
Subsequent Event [Line Items]      
Business Combination, Consideration Transferred   $ 52.9 $ 49.9
Westway Services Holdings | Subsequent Event      
Subsequent Event [Line Items]      
Business Combination, Consideration Transferred $ 81.0