Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue	$ 629,097	$ 515,657	$ 429,899
Cost of revenue	275,320	236,024	209,253
Gross profit	353,777	279,633	220,646
Operating expenses
Sales and marketing	301,347	227,023	192,600
Research and development	104,556	66,107	50,643
General and administrative	99,064	64,410	50,783
Total operating expenses	504,967	357,540	294,026
Loss from operations	(151,190)	(77,907)	(73,380)
Other income (expense)
Interest income (expense), net	4,297	(16)	(1,146)
Other income (expense), net	(4,696)	(920)	55
Total other expense, net	(399)	(936)	(1,091)
Net loss before taxes	(151,589)	(78,843)	(74,471)
Income tax provision	(2,286)	(1,183)	(3,149)
Net loss attributable to common stockholders	(153,875)	(80,026)	(77,620)
Net loss attributable to common stockholders	$ (153,875)	$ (80,026)	$ (77,620)
Net loss per share attributable to common stockholders
Basic (in dollars per share)	$ (1.09)	$ (1.46)	$ (2.33)
Diluted (in dollars per share)	$ (1.09)	$ (1.46)	$ (2.33)
Weighted-average shares used in computing net loss per share attributable to common stockholders
Basic (in shares)	140,873,504	54,972,827	33,384,438
Diluted (in shares)	140,873,504	54,972,827	33,384,438