Operational Improvement Plan (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)
Restructuring Costs [Abstract]
Operational Improvement Plan costs	$ 3,339
Accrued liabilities	2,200
Minimum [Member]
Restructuring Costs [Abstract]
Expected operational improvement cost	5,000
Maximum [Member]
Restructuring Costs [Abstract]
Expected operational improvement cost	7,000
Selling & Administrative Expenses [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	3,304
Cost of Products Sold [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	35
Employee Separation [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	2,690
Employee Separation [Member] | Selling & Administrative Expenses [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	2,690
Employee Separation [Member] | Cost of Products Sold [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	0
Other Costs [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	649	[1]
Other Costs [Member] | Selling & Administrative Expenses [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	614	[1]
Other Costs [Member] | Cost of Products Sold [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	35	[1]
Flavors & Extracts [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	352
Flavors & Extracts [Member] | Employee Separation [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	352
Flavors & Extracts [Member] | Other Costs [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	0	[1]
Color [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	2,389
Color [Member] | Employee Separation [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	1,749
Color [Member] | Other Costs [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	640	[1]
Asia Pacific [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	598
Asia Pacific [Member] | Employee Separation [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	589
Asia Pacific [Member] | Other Costs [Member]
Restructuring Costs [Abstract]
Operational Improvement Plan costs	$ 9	[1]

[1] Other costs include professional services, accelerated depreciation, and other related costs.