CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 93,438	$ 83,677
Costs and expenses:
Cost of revenue	9,265	4,256
Research and development	18,653	7,282
Sales and marketing	117,332	96,323
General and administrative	92,792	27,284
Total costs and expenses	238,042	135,145
Loss from operations	(144,604)	(51,468)
Interest expense, net	(8,157)	(24)
Change in fair value of common stock warrant liabilities	4,462	(2,108)
Other (expense) income, net	(27)	50
Loss before income taxes	(148,326)	(53,550)
(Benefit from) provision for income taxes	(213)	42
Net loss	$ (148,113)	$ (53,592)
Net loss per share attributable to common stockholders:
Basic (in dollars per share)	$ (0.37)	$ (0.15)
Diluted (in dollars per share)	$ (0.37)	$ (0.16)
Weighted average shares outstanding:
Basic (in shares)	401,653,954	356,818,954
Diluted (in shares)	401,653,954	359,827,649
Other comprehensive loss:
Change in unrealized loss on available-for-sale investments, net of tax	$ (2,046)	$ 0
Total other comprehensive loss:	(2,046)	0
Comprehensive loss	$ (150,159)	$ (53,592)