REVENUES - Schedule of Principal Transactions Revenue (Details)	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue from External Customer [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Sale of products
Revenue from External Customer [Line Items]
Concentration risk, percentage	92.30%	94.50%	92.30%	95.00%
Maintenance and support agreements
Revenue from External Customer [Line Items]
Concentration risk, percentage	5.00%	3.50%	4.70%	3.50%
Long term research and development contracts
Revenue from External Customer [Line Items]
Concentration risk, percentage	2.70%	2.00%	3.00%	1.50%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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