Restructuring (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period	$ 1.4	$ 66.4
Expense		18.2
Payments	(1.4)	(85.7)
Adjustments to previous estimates, net		(2.9)
Other adjustments		5.4
Restructuring reserve, end of period	0	1.4
Restructuring (Textual)
Headcount reduction percentage due to consolidation of sites	13.00%
Workforce reduction
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period	0.3	60.6
Expense		15.8
Payments	(0.3)	(81.8)
Adjustments to previous estimates, net		(2.9)
Other adjustments		8.6
Restructuring reserve, end of period	0	0.3
Facility consolidation
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning of period	1.1	5.8
Expense		2.4
Payments	(1.1)	(3.9)
Adjustments to previous estimates, net		0
Other adjustments		(3.2)
Restructuring reserve, end of period	$ 0	$ 1.1