Taxes Uncertain Tax Positions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Uncertain Tax Positions [Line Items]
Amount expected to impact the effective tax rate if recognized	$ 6.3	$ 6.5
Accrued interest related to unrecognized tax benefits	3.2	3.2
Accrued penalties with respect to unrecognized tax benefits	0.6	0.6
Amount of unrecognized tax benefits that may be recognized in the next twelve months due to statute expirations or settlement agreements with tax authorities	6.7
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of period	9.8	21.4
Reductions for current year tax positions	(0.1)	(0.3)
Reductions for prior year tax positions	0	(10.5)
Statute expirations	0	(0.3)
Foreign currency translation adjustments	(0.2)	(0.5)
Balance at end of period	$ 9.5	$ 9.8