Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Revenue	$ 60,692	$ 35,904	$ 113,006	$ 65,967
Cost of revenue	13,415	10,242	25,482	19,686
Gross profit	47,277	25,662	87,524	46,281
Operating expenses:
Marketing	27,944	11,800	54,902	24,573
Selling, general, and administrative	36,740	14,841	98,438	28,905
Total operating expenses	64,684	26,641	153,340	53,478
Loss from operations	(17,407)	(979)	(65,816)	(7,197)
Other income (expense):
Change in fair value of liabilities	7,963	(21)	5,282	50
Interest expense	0	0	0	(10)
Other income, net	325	56	101	215
Total other income	8,288	35	5,383	255
Loss before provision for income taxes	(9,119)	(944)	(60,433)	(6,942)
Provision for income taxes	(34)	(37)	(124)	(72)
Net loss	(9,153)	(981)	(60,557)	(7,014)
Other comprehensive income (loss)	32	24	(29)	(18)
Total comprehensive loss	$ (9,121)	$ (957)	$ (60,586)	$ (7,032)
Net loss per share attributable to common stockholders:
Basic (in dollars per share)	$ (0.05)	$ (0.03)	$ (0.35)	$ (0.20)
Diluted (in dollars per share)	$ (0.05)	$ (0.03)	$ (0.35)	$ (0.20)
Weighted average shares outstanding:
Basic (in shares)	191,922,517	35,331,373	172,631,312	34,968,882
Diluted (in shares)	191,922,517	35,331,373	172,631,312	34,968,882