Segment Information - Capital Expenditure and Depreciation and Amortization by Segment (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Capital Expenditures	$ 143,182	$ 134,157	$ 126,140
Depreciation and amortization	89,354	83,227	76,667
Flavors [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	91,104	108,215	90,309
Depreciation and amortization	36,008	33,662	30,816
Fragrances [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	43,948	17,616	26,069
Depreciation and amortization	43,790	39,716	42,987
Unallocated assets [Member]
Segment Reporting Information [Line Items]
Capital Expenditures	8,130	8,326	9,762
Depreciation and amortization	$ 9,556	$ 9,849	$ 2,864