Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets and Goodwill Goodwill Narrative (Details)

v3.7.0.1
Intangible Assets and Goodwill Goodwill Narrative (Details) - USD ($)
$ in Millions
Jun. 30, 2017
Sep. 30, 2016
Concentration Risk [Line Items]    
Goodwill $ 639.1 $ 634.3
Customer Concentration Risk [Member]    
Concentration Risk [Line Items]    
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount 9.00%  
Goodwill $ 71.3