GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Intangible Assets and Goodwill [Line Items]
Amortization of intangibles	$ 5,213	$ 5,267	$ 6,083
Intangible Assets, Net[Abstract]
Total intangible assets, Gross	61,177	60,251
Accumulated amortization	(44,312)	(39,099)
Total Finite Lived Intangible Assets, Net	15,604
Total Intangible Assets, Net	$ 16,865	21,152
Minimum [Member]
Intangible Assets and Goodwill [Line Items]
Useful life (in years)	2 years
Maximum [Member]
Intangible Assets and Goodwill [Line Items]
Useful life (in years)	12 years
Developed technology
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	$ 37,960	33,270
Accumulated amortization	(25,933)	(22,464)
Total Finite Lived Intangible Assets, Net	12,027	10,806
Customer relationships [Member]
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	20,030	20,030
Accumulated amortization	(18,098)	(16,520)
Total Finite Lived Intangible Assets, Net	1,932	3,510
Technology licenses [Member]
Intangible Assets, Net[Abstract]
Finite-Lived Intangible Assets, Gross	1,926	1,000
Accumulated amortization	(281)	(115)
Total Finite Lived Intangible Assets, Net	1,645	885
Domain name
Intangible Assets, Net[Abstract]
Indefinite-lived intangible assets	$ 1,261	1,261
In Process Research and Development [Member]
Intangible Assets, Net[Abstract]
Indefinite-lived intangible assets		$ 4,690