Commitments, Contingencies and Guarantees - Additional Information (Details) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended		75 Months Ended		0 Months Ended
	Mar. 31, 2015 USD ($) T	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2010 BRL	Nov. 08, 2011 Oral Care Technology USD ($)	Mar. 31, 2015 Oral Care Technology USD ($)	Mar. 31, 2015 VI-COR USD ($)	Jan. 02, 2015 VI-COR USD ($)	Mar. 31, 2015 Financial Guarantee USD ($)	Mar. 31, 2015 Assets Subject to Guarantees USD ($)
Commitments And Contingencies Disclosure [Line Items]
Annual purchase commitment, in tons	240,000
Commitments	$ 286.5
Outstanding letters of credit	4.6			4.6
Guarantees										17.3	2.7
Cash consideration						4.3
Potential advance royalty payments						5.5
Advance royalty payments							4.3
Potential license payment						7.0
Payment after one year if certain operating performance is achieved								5.0	5.0
Business acquisition purchase price allocation noncurrent liabilities								4.6
Imposition of fine		1.6			5.0
Remediation and related costs		4.8	3.0
Accrued expenses for remediation, fines and related costs	2.4			2.4
Increase (decrease) in accrued expenses for remediation, fines and related costs				5.4
Cost of landfill removal, minimum	30.0
Cost of landfill removal, maximum	50.0
Liabilities for uncertain income tax positions	$ 4.0			$ 4.0