Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue:	$ 45,601	$ 35,896	$ 88,357	$ 72,019
Cost of revenue:	14,168	7,363	26,970	14,213
Gross Profit	31,433	28,533	61,387	57,806
Operating expenses:
Research and development	17,233	13,931	34,058	28,387
General and administrative	17,235	13,310	35,196	31,764
Sales and marketing	8,897	3,701	16,967	7,537
Total operating expenses	43,365	30,942	86,221	67,688
Loss from operations	(11,932)	(2,409)	(24,834)	(9,882)
Other income (expenses), net:
Interest income	533	0	585	0
Interest expense	(46)	0	(46)	0
Other income (expense)	7	10	13	(8)
Change in fair value of warrant liability	0	0	0	(18,930)
Total other income (expenses), net	494	10	552	(18,938)
Loss before income taxes	(11,438)	(2,399)	(24,282)	(28,820)
(Benefit) provision for income taxes	235	38	(1,100)	74
Net loss	(11,673)	(2,437)	(23,182)	(28,894)
Accretion of redeemable convertible preferred stock to redemption value	0	0	0	(14)
Net loss attributable to Class A and Class B common stockholders	$ (11,673)	$ (2,437)	$ (23,182)	$ (28,908)
Net loss per share attributable to Class A and Class B common stockholders:
Basic (in USD per share)	$ (0.07)	$ (0.02)	$ (0.15)	$ (0.30)
Diluted (in USD per share)	$ (0.07)	$ (0.02)	$ (0.15)	$ (0.30)
Weighted-average Class A and Class B common shares outstanding:
Basic (in shares)	160,429,125	147,510,963	159,813,053	95,690,520
Diluted (in shares)	160,429,125	147,510,963	159,813,053	95,690,520
Platform
Revenue:	$ 44,538	$ 34,526	$ 86,004	$ 69,449
Cost of revenue:	12,749	6,180	23,773	11,787
Professional services and other
Revenue:	1,063	1,370	2,353	2,570
Cost of revenue:	$ 1,419	$ 1,183	$ 3,197	$ 2,426