Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue:
Total revenue	$ 139,407	$ 88,338	$ 265,546	$ 165,366
Cost of revenue:
Total cost of revenue	49,509	30,009	95,286	53,847
Gross profit	89,898	58,329	170,260	111,519
Operating expenses:
Research and development	64,472	33,225	122,133	57,538
Sales and marketing	112,754	73,206	219,456	131,715
General and administrative	29,979	37,943	57,460	53,455
Total operating expenses	207,205	144,374	399,049	242,708
Operating loss	(117,307)	(86,045)	(228,789)	(131,189)
Interest income	2,618	688	3,184	1,532
Other expense, net	(1,432)	(643)	(2,814)	(979)
Loss before income taxes	(116,121)	(86,000)	(228,419)	(130,636)
Provision for income taxes	1,510	2,170	2,199	2,060
Net loss	$ (117,631)	$ (88,170)	$ (230,618)	$ (132,696)
Net loss per share, basic	$ (0.42)	$ (0.74)	$ (0.84)	$ (1.17)
Net loss per share, diluted	$ (0.42)	$ (0.74)	$ (0.84)	$ (1.17)
Weighted-average shares used to compute net loss per share, basic	278,268,980	118,648,655	275,593,362	113,717,546
Weighted-average shares used to compute net loss per share, diluted	278,268,980	118,648,655	275,593,362	113,717,546
Subscription [Member]
Revenue:
Total revenue	$ 127,018	$ 78,516	$ 240,938	$ 146,508
Cost of revenue:
Total cost of revenue	35,608	20,292	69,211	36,049
Services [Member]
Revenue:
Total revenue	12,389	9,822	24,608	18,858
Cost of revenue:
Total cost of revenue	$ 13,901	$ 9,717	$ 26,075	$ 17,798