Other Charges, net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Other Charges, net
Information technology transformation costs	$ 1.9	$ 0.7	$ 3.6	$ 1.3
Restructuring charges	1.0	4.0	2.3	4.2
Pension settlement charge			10.2
Professional fees incurred in connection with internal investigation		0.6		2.8
Acquisition-related charges (benefits)	(2.9)	0.3	(2.9)	0.9
Long-lived asset impairments	1.8		1.8
Total Other charges, net	$ 1.8	$ 5.6	$ 15.0	$ 9.2