Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 872,000	$ 526,916	$ 271,878
Cost of revenue	157,051	118,194	67,384
Gross profit	714,949	408,722	204,494
Operating expenses:
Marketing	446,435	272,587	135,902
Operations and support	119,857	77,403	47,593
Technology and development	48,227	29,237	22,379
General and administrative	129,883	98,192	113,662
Total operating expenses	744,402	477,419	319,536
Loss from operations	(29,453)	(68,697)	(115,042)
Other income (expense):
Change in fair value of liabilities	(1,075)	70	3,802
Other income, net	8,957	2,918	445
Total other income, net	7,882	2,988	4,247
Loss before income taxes	(21,571)	(65,709)	(110,795)
(Provision) benefit for income taxes	(1,975)	31	3,136
Net loss	(23,546)	(65,678)	(107,659)
Other comprehensive income (loss)	153	(140)	(126)
Total comprehensive loss	$ (23,393)	$ (65,818)	$ (107,785)
Net loss per share attributable to common stockholders:
Basic (in USD per share)	$ (0.11)	$ (0.32)	$ (0.58)
Diluted (in USD per share)	$ (0.11)	$ (0.32)	$ (0.58)
Weighted average shares outstanding:
Basic (in shares)	209,344,712	204,516,120	186,781,537
Diluted (in shares)	209,344,712	204,516,120	186,781,537