Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Condensed Consolidated Statements of Operations
Revenue	$ 51,340	$ 17,122	$ 78,083	$ 32,196
Operating expenses:
Cost of revenue	19,500	3,792	25,429	7,891
Selling and marketing	23,122	8,787	37,762	21,640
Product and technology	11,050	5,071	22,841	12,423
General and administrative	20,611	5,893	44,625	10,049
Gain on divestiture of businesses		(1,442)		(1,442)
Total operating expenses	74,283	22,101	130,658	50,561
Operating loss	(22,943)	(4,979)	(52,575)	(18,365)
Other income (expense):
Interest expense	(1,216)	(3,291)	(2,439)	(6,377)
Change in fair value of earnout liability	(4,032)		(22,801)
Change in fair value of private warrant liability	(4,303)		(20,212)
Gain on extinguishment of debt	8,243	3,856	8,243	3,609
Investment income and realized gains	387		397
Other income (expense), net	(165)	(1,841)	(91)	(3,468)
Total other expense	(1,084)	(1,276)	(36,904)	(6,236)
Loss before income taxes	(24,027)	(6,255)	(89,479)	(24,601)
Income tax benefit (expense)	7,731	(3)	8,081	(24)
Net loss	$ (16,296)	$ (6,258)	$ (81,398)	$ (24,625)
Net loss attributable per share to common stockholders:
Basic (in dollars per share)	$ (0.17)	$ (0.18)	$ (0.89)	$ (0.70)
Diluted (in dollars per share)	$ (0.17)	$ (0.18)	$ (0.89)	$ (0.70)
Weighted-average shares used in computing net loss attributable per share to common stockholders:
Basic (in shares)	95,221,928	35,478,347	91,483,053	35,117,130
Diluted (in shares)	95,221,928	35,478,347	91,483,053	35,117,130