Commitments and Contingencies - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2015 USD ($) property
Commitments And Contingencies [Line Items]
Bank guarantees related to appeals on income tax and indirect tax cases	$ 13,200,000
Available lines of credit	$ 68,000,000
Duration as potentially responsible party, years	20 years
Number of facilities under potentially responsible party investigation | property	8
Estimation of possible loss	$ 5,000,000
Bank guarantees and pledged assets to pursue defenses related to other contingencies	25,200,000
Estimate range of possible loss from other contingencies, minimum	0
Estimate range of possible loss from other contingencies, maximum	31,000,000
Bank guarantees and standby letters of credit [Member]
Commitments And Contingencies [Line Items]
Bank guarantees and letters of credit outstanding	31,300,000
Pledged assets [Member]
Commitments And Contingencies [Line Items]
The amount of pledged assets, principally PP&E to cover income tax and indirect tax assessments	$ 12,000,000