Commitments and Contingencies - Additional Information (Detail) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013 USD ($) Property Y	Jun. 30, 2013 Bank guarantees and standby letters of credit [Member] USD ($)	Jun. 30, 2013 Bank guarantees [Member] USD ($)	Jun. 30, 2013 Bank guarantees [Member] EUR (€)	Jun. 30, 2013 Pledged assets [Member] USD ($)	Jun. 30, 2013 Tax Contingencies [Member] USD ($)
Commitments And Contingencies [Line Items]
Bank guarantees and letters of credit outstanding		$ 60.3
The amount of bank guarantees related to government requirements on income tax disputes			15.9	12.2
Bank guarantees related to appeals on income tax and indirect tax cases	23.8		12.3
The amount of pledged assets, principally PP&E to cover income tax and indirect tax assessments					21.2
Available lines of credit	86.7
Duration as potentially responsible party, years	20
Number of facilities under potentially responsible party investigation	9
Estimation of possible loss	5					12
Bank guarantees and pledged assets to pursue defenses related to other contingencies	45.0
Estimate range of possible loss from other contingencies, minimum	1
Estimate range of possible loss from other contingencies, maximum	$ 17