Commitments and Contingencies - Additional Information (Detail) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 USD ($) Y Property	Mar. 31, 2013 Pledged assets [Member] USD ($)	Mar. 31, 2013 Bank guarantees and standby letters of credit [Member] USD ($)	Mar. 31, 2013 Bank guarantees [Member] USD ($)	Mar. 31, 2013 Bank guarantees [Member] EUR (€)
Commitments And Contingencies [Line Items]
Bank guarantees and letters of credit outstanding			$ 81.1
The amount of bank guarantees related to government requirements on income tax disputes				38.2	29.9
Bank guarantees related to appeals on income tax and indirect tax cases	25.9			12.0
The amount of pledged assets, principally PP&E to cover income tax and indirect tax assessments		22.8
Available lines of credit	90.6
Duration as potentially responsible party, years	20
Number of facilities under potentially responsible party investigation	9
Estimated maximum future costs of environmental liabilities for identified sites	5
Bank guarantees and pledged assets to pursue defenses related to other contingencies	48.7
Estimate range of possible loss from other contingencies, minimum	0
Estimate range of possible loss from other contingencies, maximum	$ 12