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Income Taxes (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Dec. 31, 2013
Minimum [Member]
Dec. 31, 2013
Maximum [Member]
Income Tax Contingency [Line Items]        
Deferred tax assets, valuation allowance $ 0.2      
Unrecognized tax benefits that would impact effective tax rate 1.6 1.6    
Unrecognized tax benefits, income tax penalties and interest accrued $ 1.3 $ 1.2    
Number of years open for tax examinations     3 years 5 years