REPORTABLE SEGMENTS AND GEOGRAPHICAL INFORMATION (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenues	$ 165,016	$ 120,440	$ 97,349
Gross profit	102,702	72,775	61,731
Operating expenses	135,377	81,264	64,510
Financial expenses, net	20,106	46,721	11,189
Provision for income taxes	6,570	3,553	1,604
Net loss	59,351	58,763	15,572
Enterprise, Education and Technology
Segment Reporting Information [Line Items]
Revenues	118,932	80,449	64,839
Gross profit	84,196	58,539	50,273
Media and Telecom
Segment Reporting Information [Line Items]
Revenues	46,084	39,991	32,510
Gross profit	$ 18,506	$ 14,236	$ 11,458