SEGMENT AND RELATED DISCLOSURES - Concentration Risk (Details) - Net Sales	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Geographic Concentration Risk | Foreign | Maximum
Segment Reporting Information
Percentage of sales by segment	2.00%	2.00%	2.00%
Customer | Single Customer | Maximum
Segment Reporting Information
Percentage of sales by segment	5.00%	5.00%	5.00%
Customer | Federal Government Agencies
Segment Reporting Information
Percentage of sales by segment	4.60%	6.90%	5.40%
Customer | Single Federal Government Agency | Maximum
Segment Reporting Information
Percentage of sales by segment	3.00%	3.00%	3.00%