SEGMENT REPORTING (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	$ 64,928	$ 45,712	$ 125,431	$ 76,366
Cost of revenue	37,656	27,847	72,689	45,053
Gross profit	$ 27,272	$ 17,865	$ 52,742	$ 31,313
Gross margin	42.00%	39.00%	42.00%	41.00%
Operating income (loss)	$ (694)	$ (4,454)	$ 322	$ (9,073)
Total assets	579,366		579,366		$ 399,839
North America
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	40,533	28,982	77,806	56,631
Cost of revenue	21,111	16,222	40,875	31,368
Gross profit	$ 19,422	$ 12,760	$ 36,931	$ 25,263
Gross margin	48.00%	44.00%	47.00%	45.00%
Operating income (loss)	$ 130	$ (3,067)	$ 1,160	$ (7,161)
Total assets	418,842		418,842		238,550
International
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	24,395	16,730	47,625	19,735
Cost of revenue	16,545	11,625	31,814	13,685
Gross profit	$ 7,850	$ 5,105	$ 15,811	$ 6,050
Gross margin	32.00%	31.00%	33.00%	31.00%
Operating income (loss)	$ (824)	$ (1,387)	$ (838)	$ (1,912)
Total assets	$ 160,524		$ 160,524		$ 161,289