SEGMENT REPORTING (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	$ 60,240	$ 56,636	$ 185,671	$ 133,001
Cost of revenue	34,996	33,232	107,685	78,285
Gross profit	$ 25,244	$ 23,404	$ 77,986	$ 54,716
Gross margin	42.00%	41.00%	42.00%	41.00%
Operating loss	$ (2,433)	$ 203	$ (2,111)	$ (8,871)
Total assets	597,194		597,194		$ 399,839
North America
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	37,809	34,450	115,614	91,081
Cost of revenue	20,034	17,820	60,908	49,187
Gross profit	$ 17,775	$ 16,630	$ 54,706	$ 41,894
Gross margin	47.00%	48.00%	47.00%	46.00%
Operating loss	$ (1,645)	$ (10)	$ (484)	$ (7,172)
Total assets	435,246		435,246		238,550
International
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	22,431	22,186	70,057	41,920
Cost of revenue	14,962	15,412	46,777	29,098
Gross profit	$ 7,469	$ 6,774	$ 23,280	$ 12,822
Gross margin	33.00%	31.00%	33.00%	31.00%
Operating loss	$ (788)	$ 213	$ (1,627)	$ (1,699)
Total assets	$ 161,948		$ 161,948		$ 161,289