Interest and Other Expenses (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
Interest and Other Expenses [Abstract]
Interest expense	$ 7.9	$ 10.3	$ 28.9	$ 31.1
Interest income	(0.9)	(1.5)	(2.7)	(4.7)
Foreign exchange (gain) loss	(0.3)	0.3	1.5	0.6
Miscellaneous (income) expense, net	(1.3)	1.0	(0.5)	6.2
Interest and other expenses	$ 5.4	$ 10.1	$ 27.2	$ 33.2