SEGMENT INFORMATION - Business Segment Earnings Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment information [Abstract]
Earnings before income taxes	$ 39,258	$ 30,019	$ 76,888	$ 60,002
Interest and other (expense)	(662)	(574)	(1,368)	(1,166)
Operating segments | Human Nutrition & Health
Segment information [Abstract]
Earnings before income taxes	23,705	19,021	44,008	38,711
Operating segments | Animal Nutrition & Health
Segment information [Abstract]
Earnings before income taxes	7,586	3,561	18,907	8,617
Operating segments | Specialty Products
Segment information [Abstract]
Earnings before income taxes	9,919	9,729	17,680	16,918
Other and unallocated
Segment information [Abstract]
Earnings before income taxes	(1,290)	(1,718)	(2,339)	(3,078)
Interest and other expense
Segment information [Abstract]
Interest and other (expense)	$ (662)	$ (574)	$ (1,368)	$ (1,166)