SEGMENT INFORMATION, Depreciation Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Depreciation/Amortization	$ 11,018	$ 11,209
Human Nutrition & Health [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Depreciation/Amortization	8,532	8,115
Animal Nutrition & Health [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Depreciation/Amortization	1,305	1,889
Specialty Products [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Depreciation/Amortization	1,010	1,016
Industrial Products [Member] | Reportable Segments [Member]
Segment Reporting Information [Line Items]
Depreciation/Amortization	$ 171	$ 189