Income Taxes (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating losses carryforwards
Valuation allowance	$ 10.2	$ 14.6
Income taxes additional disclosure
Cumulative amount of unremitted earnings of unconsolidated affiliates	73.2
Deferred taxes provided on unremitted earnings of unconsolidated affiliates	5.9	14.7
Tax on distribution of foreign earnings	7.5	0.6	2.0
Accumulated undistributed earnings of foreign subsidiaries	52.6
Income tax liability, net of credits, on unremitted earnings	0.4	0.1
Federal
Income taxes additional disclosure
Tax on distribution of foreign earnings	7.5
Federal | Business combinations
Operating losses carryforwards
Net operating losses carryforwards	1.3
State | Business combinations
Operating losses carryforwards
Net operating losses carryforwards	26.0
International jurisdictions
Operating losses carryforwards
Net operating losses carryforwards	55.8
Net benefit from net operating losses	$ 8.1