Other Income, Net (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Other Income, Net
Dividend income	$ 0.4	$ 0.3	$ 1.1	$ 1.0
Interest income	0.1	0.2	0.4	0.4
Foreign currency gains (losses)	0.3	(0.2)	0.2	(1.0)
Other, net			0.1	1.8
Total	$ 0.8	$ 0.3	$ 1.8	$ 2.2