Interest and Other Expenses (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Interest and Other Expenses [Abstract]
Interest expense	$ 10.3	$ 10.2	$ 21.0	$ 20.8
Interest income	(0.9)	(1.4)	(1.8)	(3.2)
Foreign exchange losses	1.4	0.5	1.8	0.3
Miscellaneous (income) expense, net	(0.5)	2.0	0.8	5.2
Interest and other expenses	$ 10.3	$ 11.3	$ 21.8	$ 23.1