Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenue	$ 1,042,979	$ 976,672	$ 1,099,574
Cost of revenue	678,778	646,853	790,455
Gross profit	364,201	329,819	309,119
Operating expenses
Technology and development	163,927	183,294	178,924
Marketing	114,481	117,863	155,309
General and administrative	235,364	238,790	243,390
Employee termination costs	5,684	7,927	32,353
Total operating expenses	519,456	547,874	609,976
Loss from continuing operations	(155,255)	(218,055)	(300,857)
Interest income	6,348	10,532	6,639
Interest expense	(27,780)	(9,524)	(8,886)
Income tax benefit (expense)	530	(979)	(116)
Gain on extinguishment of convertible senior notes	12,000	94,019	57,193
Other expense, net	(644)	(2,385)	(3,770)
Net loss from continuing operations	(164,801)	(126,392)	(249,797)
Net loss from discontinued operations	0	(3,634)	(71,346)
Net loss	(164,801)	(130,026)	(321,143)
Dividends on convertible preferred stock	(1,073)	(1,074)	(1,560)
Net loss from continuing operations attributable to common stock—diluted	(165,874)	(127,466)	(251,357)
Net loss from continuing operations attributable to common stock—basic	(165,874)	(127,466)	(251,357)
Net loss	$ (165,874)	$ (131,100)	$ (322,703)
Income (Loss) from Continuing Operations, Per Basic Share	$ (1.36)	$ (1.13)	$ (2.33)
Income (Loss) from Continuing Operations, Per Diluted Share	$ (1.36)	$ (1.13)	$ (2.33)
Net loss attributable to common stock—diluted	$ (165,874)	$ (131,100)	$ (322,703)
Net loss per share attributable to common stock—basic (in dollars per share)	$ (1.36)	$ (1.16)	$ (2.99)
Net loss per share attributable to common stock— diluted (in dollars per share)	$ (1.36)	$ (1.16)	$ (2.99)
Weighted average shares of common stock— basic (in shares)	121,677,971	113,152,752	107,927,464
Weighted average shares of common stock— diluted (in shares)	121,677,971	113,152,752	107,927,464
Other comprehensive income
Foreign currency translation adjustments	$ (24)	$ (71)	$ 94
Unrealized gain on available-for-sale securities	40	690	533
Comprehensive loss	$ (164,785)	$ (129,407)	$ (320,516)