Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI beginning balance	$ 6.2	$ (0.6)	$ 8.2	$ 4.5
OCI before reclassifications:
Amount before tax	(1.5)	(3.2)	(3.1)	(8.3)
Income Tax	0	(2.5)	0	(2.5)
Amount net of tax	(1.5)	(5.7)	(3.1)	(10.8)
Reclassifications to earnings
Amount before tax	(0.3)	0	(0.9)	0
Income tax at 37%	0.1	0	0.3	0
Amount net of tax	(0.2)	0	(0.6)	0
Net OCI	(1.7)	(5.7)	(3.7)	(10.8)
AOCI ending balance	4.5	(6.3)	4.5	(6.3)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI beginning balance	(1.4)	(0.6)	0.2	4.5
OCI before reclassifications:
Amount before tax	(1.5)	(10.1)	(3.1)	(15.2)
Income Tax	0	0	0	0
Amount net of tax	(1.5)	(10.1)	(3.1)	(15.2)
Reclassifications to earnings
Amount before tax	0	0	0	0
Income tax at 37%	0	0	0	0
Amount net of tax	0	0	0	0
Net OCI	(1.5)	(10.1)	(3.1)	(15.2)
AOCI ending balance	(2.9)	(10.7)	(2.9)	(10.7)
Unrealized Gain on Interest Rate Lock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI beginning balance	7.6	0	8.0	0
OCI before reclassifications:
Amount before tax	0	6.9	0	6.9
Income Tax	0	(2.5)	0	(2.5)
Amount net of tax	0	4.4	0	4.4
Reclassifications to earnings
Amount before tax	(0.3)	0	(0.9)	0
Income tax at 37%	0.1	0	0.3	0
Amount net of tax	(0.2)	0	(0.6)	0
Net OCI	(0.2)	4.4	(0.6)	4.4
AOCI ending balance	$ 7.4	$ 4.4	$ 7.4	$ 4.4