Income Taxes (Details) (USD $) In Millions, unless otherwise specified			6 Months Ended
	Mar. 31, 2014	Sep. 30, 2013	Mar. 31, 2014 Minimum [Member]	Mar. 31, 2014 Maximum [Member]
Income Tax Contingency [Line Items]
Deferred tax assets, valuation allowance	$ 1.2
Unrecognized tax benefits that would impact effective tax rate	1.6	1.6
Unrecognized tax benefits, income tax penalties and interest accrued	$ 1.4	$ 1.2
Number of years open for tax examinations			3 years	5 years