Operating Leases (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2013	$ 17.9
2014	17.7
2015	13.2
2016	10.7
2017	9.0
Thereafter	20.7
Total future minimum lease payments	89.2
Operating Leases, Rent Expense, Net [Abstract]
Operating Leases, Rent Expense	$ 20.7	$ 22.4	$ 21.6