Accumulated Other Comprehensive Income (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($)
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	$ 835,741
Other comprehensive income before reclassifications	17,603
Amounts reclassified from OCI	6,476
Ending balance	849,835
Flavors & Fragrances [Member]
Accumulated Other Comprehensive Loss [Roll Forward]
Translation adjustment functional to reporting currency, net of tax	(2,800)
European Natural Ingredients Business [Member]
Accumulated Other Comprehensive Loss [Roll Forward]
Translation adjustment functional to reporting currency, net of tax	(3,700)
Accumulated Other Comprehensive (Loss) Income [Member]
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	(213,465)
Ending balance	(189,386)
Cash Flow Hedges [Member]
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	(85)	[1]
Other comprehensive income before reclassifications	327	[1]
Amounts reclassified from OCI	(20)	[1]
Ending balance	222	[1]
Pension Items [Member]
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	(2,537)	[1]
Other comprehensive income before reclassifications	0	[1]
Amounts reclassified from OCI	(28)	[1]
Ending balance	(2,565)	[1]
Foreign Currency Items [Member]
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	(210,843)
Other comprehensive income before reclassifications	17,276
Amounts reclassified from OCI	6,524
Ending balance	$ (187,043)

[1] Cash Flow Hedges and Pension Items are net of tax.