Restructuring and Other Charges, Net - Additional Information (Detail) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2016 USD ($)	Dec. 31, 2015 USD ($) Position	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charge	$ 0		$ 0	$ 0	$ (170)
Fragrance Ingredients Rationalization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charge				473
Payments for Restructuring and Other Costs				1,801
Expected restructuring costs	10,500			10,500
Accelerated Depreciation [Member] | Fragrance Ingredients Rationalization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charge				473
Payments for Restructuring and Other Costs				0
Restructuring, accelerated depreciation of fixed assets	$ 500
Employee Severance [Member] | 2015 Severance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions expected to be eliminated | Position		150
Employee -Related Costs [Member] | Fragrance Ingredients Rationalization [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charge				0
Payments for Restructuring and Other Costs				$ 1,801
Other Expense [Member] | Employee Severance [Member] | 2015 Severance Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charge		$ 7,600