SEGMENT INFORMATION, Capital Expenditures (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Segment information [Abstract]
Capital expenditures	$ 7,700	$ 10,819
Human Nutrition & Health [Member] | Reportable Segments [Member]
Segment information [Abstract]
Capital expenditures	4,091	8,594
Animal Nutrition & Health [Member] | Reportable Segments [Member]
Segment information [Abstract]
Capital expenditures	1,763	1,403
Specialty Products [Member] | Reportable Segments [Member]
Segment information [Abstract]
Capital expenditures	1,202	411
Industrial Products [Member] | Reportable Segments [Member]
Segment information [Abstract]
Capital expenditures	$ 644	$ 411