Environmental (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Loss Contingencies [Line Items]
Environmental remediation costs	$ 0.3	$ 0.1
Accrued environmental liability	85.2		87.8
Other Long Term Liabilities [Member]
Loss Contingencies [Line Items]
Accrued environmental liability	$ 72.0		$ 73.6