Retirement and Other Postretirement Benefit Plans - Additional Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
U.S. Non-qualified Defined Benefit Retirement Plans
Amounts recognized on the balance sheet:
Employer contribution to defined benefit retirement plans			$ 25.6		$ 0.3
Expected employer contribution in remainder of fiscal year			0.3
European Defined Benefit Retirement Plans
Amounts recognized on the balance sheet:
Employer contribution to defined benefit retirement plans	1.7	1.5	4.9	4.2	5.9
Expected employer contribution in next fiscal year			6.6
Postretirement Health Care and Life Insurance Benefit Plans
Amounts recognized on the balance sheet:
Employer contribution to defined benefit retirement plans	0.1	0.1	0.2	0.2	0.3
Expected employer contribution in next fiscal year			$ 0.3