Income Taxes Income tax (tables) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Income Tax Expense (Benefit)	$ 0.3	$ (1.6)
Operating Expense [Member]
Income Tax Expense (Benefit)	0.5	(2.4)
Valuation Allowance of Deferred Tax Assets [Member]
Income Tax Expense (Benefit)	0	0.8
Other Expense [Member]
Income Tax Expense (Benefit)	$ (0.2)	$ 0