Segment and Geographic Information, Segment and Geographic Info (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue [Abstract]
Revenue from external customers	$ 1,437,039	$ 1,380,264	$ 1,332,001
Long-lived assets	1,046,834	1,004,340	999,274
North America [Member]
Revenue [Abstract]
Revenue from external customers	846,018	787,107	733,330
Long-lived assets	665,356	624,766	600,404
Europe [Member]
Revenue [Abstract]
Revenue from external customers	267,575	278,229	289,980
Long-lived assets	322,991	317,875	339,264
Asia Pacific [Member]
Revenue [Abstract]
Revenue from external customers	229,290	221,566	199,921
Long-lived assets	33,948	37,689	36,708
Other [Member]
Revenue [Abstract]
Revenue from external customers	94,156	93,362	108,770
Long-lived assets	24,539	24,010	22,898
Flavors & Extracts [Member]
Revenue [Abstract]
Revenue from external customers	710,592	717,688	724,483
Long-lived assets	373,371	361,711	358,331
Color [Member]
Revenue [Abstract]
Revenue from external customers	583,379	527,626	486,536
Long-lived assets	535,740	504,553	506,532
Asia Pacific [Member]
Revenue [Abstract]
Revenue from external customers	143,068	134,950	120,982
Long-lived assets	29,915	32,901	31,834
Reportable Geographical Components [Member] | United States [Member]
Revenue [Abstract]
Revenue from external customers	711,100	658,000	614,300
Long-lived assets	586,800	550,300	518,200
Reportable Geographical Components [Member] | Flavors & Extracts [Member] | North America [Member]
Revenue [Abstract]
Revenue from external customers	541,120	523,960	491,641
Long-lived assets	286,497	268,934	244,921
Reportable Geographical Components [Member] | Flavors & Extracts [Member] | Europe [Member]
Revenue [Abstract]
Revenue from external customers	115,925	135,348	160,083
Long-lived assets	86,248	91,934	112,424
Reportable Geographical Components [Member] | Flavors & Extracts [Member] | Asia Pacific [Member]
Revenue [Abstract]
Revenue from external customers	29,092	29,880	30,080
Long-lived assets	237	275	204
Reportable Geographical Components [Member] | Flavors & Extracts [Member] | Other [Member]
Revenue [Abstract]
Revenue from external customers	24,455	28,500	42,679
Long-lived assets	389	568	782
Reportable Geographical Components [Member] | Color [Member] | North America [Member]
Revenue [Abstract]
Revenue from external customers	304,778	263,031	241,608
Long-lived assets	271,075	250,682	252,906
Reportable Geographical Components [Member] | Color [Member] | Europe [Member]
Revenue [Abstract]
Revenue from external customers	151,437	142,741	129,704
Long-lived assets	236,719	225,916	226,840
Reportable Geographical Components [Member] | Color [Member] | Asia Pacific [Member]
Revenue [Abstract]
Revenue from external customers	61,064	59,914	52,414
Long-lived assets	3,796	4,513	4,670
Reportable Geographical Components [Member] | Color [Member] | Other [Member]
Revenue [Abstract]
Revenue from external customers	66,100	61,940	62,810
Long-lived assets	24,150	23,442	22,116
Reportable Geographical Components [Member] | Asia Pacific [Member] | North America [Member]
Revenue [Abstract]
Revenue from external customers	120	116	81
Long-lived assets	0	0	0
Reportable Geographical Components [Member] | Asia Pacific [Member] | Europe [Member]
Revenue [Abstract]
Revenue from external customers	213	140	193
Long-lived assets	0	0	0
Reportable Geographical Components [Member] | Asia Pacific [Member] | Asia Pacific [Member]
Revenue [Abstract]
Revenue from external customers	139,134	131,772	117,427
Long-lived assets	29,915	32,901	31,834
Reportable Geographical Components [Member] | Asia Pacific [Member] | Other [Member]
Revenue [Abstract]
Revenue from external customers	3,601	2,922	3,281
Long-lived assets	0	0	0
Corporate & Other [Member]
Revenue [Abstract]
Revenue from external customers	0	0	0
Long-lived assets	107,808	105,175	102,577
Corporate & Other [Member] | North America [Member]
Revenue [Abstract]
Revenue from external customers	0	0	0
Long-lived assets	107,784	105,150	102,577
Corporate & Other [Member] | Europe [Member]
Revenue [Abstract]
Revenue from external customers	0	0	0
Long-lived assets	24	25	0
Corporate & Other [Member] | Asia Pacific [Member]
Revenue [Abstract]
Revenue from external customers	0	0	0
Long-lived assets	0	0	0
Corporate & Other [Member] | Other [Member]
Revenue [Abstract]
Revenue from external customers	0	0	0
Long-lived assets	$ 0	$ 0	$ 0