SEGMENT INFORMATION - Business Segment Net Sales (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Net sales	$ 250,519	$ 239,659
Cost of sales	162,351	158,145
Gross margin	88,168	81,514
Operating Expenses	37,153	39,838
Earnings from operations	51,015	41,676
Interest expense, net	2,924	5,398
Other income	151	(572)
Nonoperating Income (Expense)	3,075	4,826
Earnings before income tax expense	47,940	36,850
Income tax expense	10,887	7,864
Net earnings	37,053	28,986
Operating Segments | Human Nutrition and Health
Segment Reporting Information [Line Items]
Net sales	158,457	152,744
Cost of sales	99,383	97,382
Gross margin	59,074	55,362
Operating Expenses	21,100	22,105
Earnings from operations	37,974	33,257
Operating Segments | Animal Nutrition and Health
Segment Reporting Information [Line Items]
Net sales	57,277	53,921
Cost of sales	44,917	44,235
Gross margin	12,360	9,686
Operating Expenses	7,124	7,626
Earnings from operations	5,236	2,060
Operating Segments | Specialty Products
Segment Reporting Information [Line Items]
Net sales	33,275	31,613
Cost of sales	15,986	14,624
Gross margin	17,289	16,989
Operating Expenses	7,704	8,790
Earnings from operations	9,585	8,199
Other and Unallocated
Segment Reporting Information [Line Items]
Net sales	1,510	1,381
Cost of sales	2,065	1,904
Gross margin	(555)	(523)
Operating Expenses	1,225	1,317
Earnings from operations	$ (1,780)	$ (1,840)