Restructuring (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Employee Severance [Member]	Jun. 30, 2014 Employee Severance [Member]	Sep. 30, 2013 Employee Severance [Member]	Jun. 30, 2014 Pension curtailment [Member]	Jun. 30, 2014 Pension curtailment [Member]	Jun. 30, 2014 Accelerated depreciation [Member]	Jun. 30, 2014 Accelerated depreciation [Member]	Jun. 30, 2014 Total Income Statement Impact [Member]	Jun. 30, 2014 Total Income Statement Impact [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve					$ 2.1	$ 2.1	$ 2.1
Restructuring expense	0.2	3.0	0.9	3.0	0.2	0.9		0	0	2.1	6.8	2.3	7.7
Restructuring and Related Cost, Cost Incurred to Date						3.0			1.7		16.4		21.1
Restructuring charges, expected cost remaining						0.5			0		1.7		2.2
Payments for Restructuring						$ (0.9)