Restructuring and Other Charges, Net - Additional Information (Detail) (USD $)	3 Months Ended				9 Months Ended		3 Months Ended			9 Months Ended	12 Months Ended
	Sep. 30, 2013 Positions	Jun. 30, 2013	Sep. 30, 2012	Dec. 31, 2011 Positions	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Georgia [Member]	Sep. 30, 2013 Minimum [Member]	Sep. 30, 2013 Maximum [Member]	Sep. 30, 2013 Strategic Initiative [Member]	Dec. 31, 2012 Strategic Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Company announced that it intends to close its fragrance ingredients manufacturing facility in Augusta, date							July 2014
Restructuring, expected charges								$ 16,000,000	$ 21,000,000
Restructuring, accelerated depreciation of fixed assets	2,200,000	800,000			3,000,000			10,000,000	12,000,000
Restructuring, personnel-related costs	2,100,000			9,800,000				3,000,000	4,000,000
Restructuring, plant shutdown and other related costs								3,000,000	5,000,000
Restructuring charge	0	2,900,000	0		2,105,000	1,668,000				0
Expected number of positions eliminated	43
Estimation on future cash expenditures								6,000,000	9,000,000
Number of positions eliminated				72
Increase in restructuring and other expenses											$ 1,700,000