Interest and Other Expenses (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Interest and Other Expenses [Abstract]
Interest expense	$ 10.7	$ 10.6
Interest income	(0.9)	(1.8)
Foreign exchange loss (gain)	0.4	(0.2)
Miscellaneous expenses, net	1.3	3.2
Interest and other expenses	$ 11.5	$ 11.8