REVENUES FROM CONTRACTS WITH CUSTOMERS (Tables)

9 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Schedule of disaggregated revenue by category

	Enterprise, Education and Technology					Media and Telecom
	Amount		Percentage of revenue			Amount		Percentage of revenue
Three months ended September 30, 2021 (unaudited)
Subscription	$	27,952		91.9	%	$	9,723		77.3	%
Professional services		2,458		8.1	%		2,851		22.7	%
	$	30,410		100	%	$	12,574		100	%

	Enterprise, Education and Technology					Media and Telecom
	Amount		Percentage of revenue			Amount		Percentage of revenue
Three months ended September 30, 2020 (unaudited)
Subscription	$	19,765		94.1	%	$	7,123		74.1	%
Professional services		1,236		5.9	%		2,484		25.9	%
	$	21,001		100	%	$	9,607		100	%

	Enterprise, Education and Technology					Media and Telecom
	Amount		Percentage of revenue			Amount		Percentage of revenue
Nine months ended September 30, 2021 (unaudited)
Subscription	$	79,120		89.9	%	$	27,363		79.7	%
Professional services		8,846		10.1	%		6,971		20.3	%
	$	87,966		100	%	$	34,334		100	%

	Enterprise, Education and Technology					Media and Telecom
	Amount		Percentage of revenue			Amount		Percentage of revenue
Nine months ended September 30, 2020 (unaudited)
Subscription	$	53,288		94.9	%	$	21,773		74.8	%
Professional services		2,881		5.1	%		7,321		25.2	%
	$	56,169		100	%	$	29,094		100	%

Schedule of revenue by region based on the billing address of customers

	Three months ended September 30, (unaudited)
	2021					2020
	Amount		Percentage of revenue			Amount		Percentage of revenue
United States (“US”)	$	25,061		58.3	%	$	17,653		57.7	%
Europe, the Middle East and Africa ("EMEA")		13,482		31.4	%		9,485		31.0	%
Other		4,441		10.3	%		3,470		11.3	%
	$	42,984		100	%	$	30,608		100	%

	Nine months ended September 30, (unaudited)
	2021					2020
	Amount		Percentage of revenue			Amount		Percentage of revenue
US	$	72,087		58.9	%	$	48,567		56.9	%
EMEA		37,485		30.7	%		26,907		31.6	%
Other		12,728		10.4	%		9,789		11.5	%
	$	122,300		100	%	$	85,263		100	%

Schedule of costs to obtain and fulfill a contract

	Three Months ended September 30,						Nine Months ended September 30,
	2021			2020			2021			2020
	(unaudited)
Beginning balance	$	23,507		$	10,938		$	17,683		$	9,015
Additions to deferred contract acquisition costs during the period		5,049			3,975			13,551			7,370
Amortization of deferred contract acquisition costs		(1,643	)		(840	)		(4,321	)		(2,312	)
Ending balance	$	26,913		$	14,073		$	26,913		$	14,073
Deferred contract acquisition costs, current	$	7,346		$	3,850		$	7,346		$	3,850
Deferred contract acquisition costs, noncurrent		19,567			10,223			19,567			10,223
Total deferred costs to obtain a contract	$	26,913		$	14,073		$	26,913		$	14,073

	Three Months ended September 30,						Nine Months ended September 30,
	2021			2020			2021			2020
	(unaudited)
Beginning balance	$	4,771		$	3,839		$	4,041		$	3,993
Additions to deferred costs to fulfill a contract during the period		492			266			1,711			564
Amortization of deferred costs to fulfill a contract		(272	)		(224	)		(761	)		(676	)
Ending balance	$	4,991		$	3,881		$	4,991		$	3,881
Deferred fulfillment costs, current	$	1,356		$	974		$	1,356		$	974
Deferred fulfillment costs, noncurrent		3,635			2,907			3,635			2,907
Total deferred costs to fulfill a contract	$	4,991		$	3,881		$	4,991		$	3,881