Restructuring and Other Charges, Net - Changes in Employee-Related Restructuring Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended			12 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Fragrance Ingredients Rationalization [Member]	Dec. 31, 2013 Fragrance Ingredients Rationalization [Member]	Sep. 30, 2014 Fragrance Ingredients Rationalization [Member] Employee -Related Costs [Member]	Sep. 30, 2014 Fragrance Ingredients Rationalization [Member] Accelerated Depreciation [Member]	Sep. 30, 2014 Fragrance Ingredients Rationalization [Member] Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance					$ 2,116		$ 2,116
Additional charges, net	608	0	912	2,105	6,012	7,400	(46)	5,100	958
Restructuring Reserve, Settled without Cash					(5,100)			(5,100)
Payments and other costs					(1,525)		(567)		(958)
Ending Balance					$ 1,503	$ 2,116	$ 1,503