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Goodwill and Other Intangible Assets (Details 2) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Jun. 30, 2012
Goodwill and Intangible Asset Impairment      
Implied market control premium (in hundredths) 35.60% 64.50%  
Indefinite lived intangible assets impairment charge     $ 16.4
Finite lived intangible assets impairment charge     $ 39.1
Minimum
     
Goodwill and Intangible Asset Impairment      
Weighted-average cost of capital rate (in hundredths) 13.50%    
Maximum
     
Goodwill and Intangible Asset Impairment      
Weighted-average cost of capital rate (in hundredths) 15.50%