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Variable Interest Entities (Details) - Variable Interest Entity [Member]
$ in Millions
Apr. 28, 2016
USD ($)
Sep. 30, 2016
subsidiary
Variable Interest Entity [Line Items]    
Variable interest entity, number of entities | subsidiary   1
Consideration transferred $ 45.0  
Liabilities incurred to purchase remaining interest 25.5  
Noncontrolling interest in variable interest entity $ 19.5  
Percentage of voting interests acquired 60.00%