Commitments and Contingencies - Additional Information (Detail) € in Millions	3 Months Ended			6 Months Ended	12 Months Ended
	Jun. 30, 2016 USD ($)	Mar. 31, 2014 EUR (€)	Mar. 31, 2014 USD ($)	Jun. 30, 2016 USD ($) property	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2015 EUR (€)	Dec. 31, 2015 USD ($)
Commitments And Contingencies [Line Items]
Bank guarantees related to appeals on income tax and indirect tax cases				$ 16,200,000
Available lines of credit	$ 76,600,000			$ 76,600,000
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			$ 5,000,000
Payments to acquire equipment						$ 6,500,000
Property, Plant and Equipment, Net	737,353,000			737,353,000				$ 732,794,000
Bank guarantees and pledged assets to pursue defenses related to other contingencies				29,600,000
Estimate range of possible loss from other contingencies, minimum	0			0
Estimate range of possible loss from other contingencies, maximum	46,000,000			46,000,000
Payment of Litigation Settlement | €		€ 9.8
Bank guarantees and standby letters of credit [Member]
Commitments And Contingencies [Line Items]
Bank guarantees and letters of credit outstanding				38,000,000
Pledged assets [Member]
Commitments And Contingencies [Line Items]
The amount of pledged assets, principally PP&E to cover income tax and indirect tax assessments				13,400,000
Spanish capital tax settlement
Commitments And Contingencies [Line Items]
Payment of Litigation Settlement			$ 11,200,000
Estimated Litigation Liability							€ (9.8)	$ (10,500,000)
Additional income recorded related to amounts to be received	1,400,000
Zhejiang Ingredients Plant [Member] | CHINA
Commitments And Contingencies [Line Items]
Property, Plant and Equipment, Net	$ 25,000,000			$ 25,000,000
Scenario, Forecast [Member] | Minimum [Member] | Zhejiang Ingredients Plant [Member] | CHINA
Commitments And Contingencies [Line Items]
Restructuring, accelerated depreciation of fixed assets					$ 0
Scenario, Forecast [Member] | Maximum [Member] | Zhejiang Ingredients Plant [Member] | CHINA
Commitments And Contingencies [Line Items]
Restructuring, accelerated depreciation of fixed assets					$ 25,000,000