Segment Information, Operating Results by Segment (Details) $ in Thousands	3 Months Ended
Mar. 31, 2022 USD ($) Segment	Mar. 31, 2021 USD ($)
Segment Information [Abstract]
Number of reportable segments \| Segment	3
Revenue [Abstract]
Revenue	$ 355,521	$ 359,702
Divestiture and other related costs	0	1,572
Operating income (loss)	52,789	46,897
Interest expense	2,993	3,433
Earnings before income taxes	49,796	43,464
Flavors & Extracts [Member]
Revenue [Abstract]
Revenue	175,202	194,661
Operating income (loss)	27,579	27,018
Interest expense	0	0
Earnings before income taxes	27,579	27,018
Color [Member]
Revenue [Abstract]
Revenue	143,928	131,201
Operating income (loss)	30,657	26,594
Interest expense	0	0
Earnings before income taxes	30,657	26,594
Asia Pacific [Member]
Revenue [Abstract]
Revenue	36,391	33,840
Operating income (loss)	8,204	6,752
Interest expense	0	0
Earnings before income taxes	8,204	6,752
Corporate and Other [Member]
Revenue [Abstract]
Divestiture and other related costs	0	375
Operational improvement plan costs	0
Reportable Segments [Member]
Revenue [Abstract]
Revenue	367,630	370,471
Reportable Segments [Member] \| Flavors & Extracts [Member]
Revenue [Abstract]
Revenue	182,727	200,911
Reportable Segments [Member] \| Color [Member]
Revenue [Abstract]
Revenue	148,438	135,720
Reportable Segments [Member] \| Asia Pacific [Member]
Revenue [Abstract]
Revenue	36,465	33,840
Intersegment Revenue [Member]
Revenue [Abstract]
Revenue	12,109	10,769
Intersegment Revenue [Member] \| Flavors & Extracts [Member]
Revenue [Abstract]
Revenue	7,525	6,250
Intersegment Revenue [Member] \| Color [Member]
Revenue [Abstract]
Revenue	4,510	4,519
Intersegment Revenue [Member] \| Asia Pacific [Member]
Revenue [Abstract]
Revenue	74	0
Corporate & Other [Member]
Revenue [Abstract]
Revenue	0	0
Operating income (loss)	(13,651)	(13,467)
Interest expense	2,993	3,433
Earnings before income taxes	$ (16,644)	$ (16,900)

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