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Restructuring and Other Charges, Net - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($) Position	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) Facility	Sep. 30, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charge	$ 3,716	$ 927	$ 22,415	$ 2,830
Frutarom Integration Initiative
Restructuring Cost and Reserve [Line Items]
Expected number of sites closed | Facility			35
Expected number of sites closed, period			2 years
2017 Productivity Program
Restructuring Cost and Reserve [Line Items]
Restructuring charge			$ 24,500
Employee Severance | Frutarom Integration Initiative
Restructuring Cost and Reserve [Line Items]
Restructuring charge			7,600
Payments for restructuring			60,000
Employee Severance | 2019 Severance Initiatives
Restructuring Cost and Reserve [Line Items]
Restructuring charge			14,800
Number of positions expected to be eliminated | Position	190
Payments for restructuring			$ 20,000
Contract Termination
Restructuring Cost and Reserve [Line Items]
Restructuring charge				$ 4,500
Europe, Africa and Middle East | Frutarom Integration Initiative
Restructuring Cost and Reserve [Line Items]
Number of facilities closed | Facility			8
North America | Frutarom Integration Initiative
Restructuring Cost and Reserve [Line Items]
Number of facilities closed | Facility			1

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