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Other Charges and Credits (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2014
Sep. 30, 2013
Mar. 31, 2013
Sep. 30, 2013
Other Charges and Credits [Abstract]        
Contract Termination Costs $ 9.7      
Income tax adjustments [Abstract]        
Additional current tax expense due to income tax audit settlements       6.4
ReductionInCurrentTaxExpenseDueToIncreaseInTaxableIncomeAttributableToNCI   5.4    
Additional current tax expense due to tax law change     $ 4.1