Commitments and Contingencies - Additional Information (Detail) € in Millions	3 Months Ended			9 Months Ended	12 Months Ended
	Sep. 30, 2016 USD ($) Facility	Mar. 31, 2014 EUR (€)	Mar. 31, 2014 USD ($)	Sep. 30, 2016 USD ($) Facility property	Dec. 31, 2016 USD ($)	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
Line of credit facility, maximum borrowing capacity	$ 950,000,000.0			950,000,000.0
Available lines of credit	76,900,000			$ 76,900,000
Duration as potentially responsible party, years				20 years
Number of facilities under potentially responsible party investigation | property				8
Property, Plant and Equipment, Net	745,241,000			$ 745,241,000				$ 732,794,000
Bank guarantees and pledged assets to pursue defenses related to other contingencies				29,700,000
Estimate range of possible loss from other contingencies, minimum	0			0
Estimate range of possible loss from other contingencies, maximum	53,000,000			53,000,000
Payment of Litigation Settlement | €		€ 9.8
Additional litigation reserve	25,000,000			25,000,000
Bank guarantees and standby letters of credit [Member]
Commitments And Contingencies [Line Items]
Bank guarantees and letters of credit outstanding				39,200,000
Pledged assets [Member]
Commitments And Contingencies [Line Items]
The amount of pledged assets, principally PP&E to cover income tax and indirect tax assessments				13,500,000
Reserve for Environmental Costs [Member]
Commitments And Contingencies [Line Items]
Estimation of possible loss	5,000,000			5,000,000
Spanish capital tax settlement
Commitments And Contingencies [Line Items]
Payment of Litigation Settlement			$ 11,200,000
Additional litigation reserve							€ (9.8)	$ (10,500,000)
Additional income recorded related to amounts to be received	2,300,000
CHINA
Commitments And Contingencies [Line Items]
Property, Plant and Equipment, Net	$ 130,000,000			$ 130,000,000
Number of facilities | Facility	5			5
Number of facilities under construction | Facility	1			1
Guangzhou Flavors Plant [Member] | CHINA
Commitments And Contingencies [Line Items]
Payments to acquire equipment						$ 6,500,000
Property, Plant and Equipment, Net	$ 73,000,000			$ 73,000,000
Zhejiang Ingredients Plant [Member] | CHINA
Commitments And Contingencies [Line Items]
Property, Plant and Equipment, Net	$ 27,000,000			$ 27,000,000
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					$ 27,000,000