Segment Reporting and Revenue - Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
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
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) income from continuing operations	(155,255)	(218,055)	(300,857)
Net income (loss) from continuing operations	$ (164,801)	(126,392)	(249,797)
Title
Segment Reporting Information [Line Items]
Revenue		25,095	17,425
Cost of revenue		23,335	21,694
Gross profit		1,760	(4,269)
Technology and development		510	1,728
Marketing		54	194
General and administrative		2,776	2,751
Employee termination costs		0	0
Total operating expenses		3,340	4,673
(Loss) income from continuing operations		(1,580)	(8,942)
Interest income, interest expense, income tax expense, gain on extinguishment of convertible senior notes, and other expense, net		348	47
Net income (loss) from continuing operations		(1,232)	(8,895)
Monetization
Segment Reporting Information [Line Items]
Revenue		14,080	6,259
Cost of revenue		629	766
Gross profit		13,451	5,493
Technology and development		3,994	1,863
Marketing		6	5
General and administrative		1,241	556
Employee termination costs		0	0
Total operating expenses		5,241	2,424
(Loss) income from continuing operations		8,210	3,069
Interest income, interest expense, income tax expense, gain on extinguishment of convertible senior notes, and other expense, net		364	93
Net income (loss) from continuing operations		8,574	3,162
Previously Reported
Segment Reporting Information [Line Items]
Revenue		39,175	23,684
Cost of revenue		23,964	22,460
Gross profit		15,211	1,224
Technology and development		4,504	3,591
Marketing		60	199
General and administrative		4,017	3,307
Employee termination costs		0	0
Total operating expenses		8,581	7,097
(Loss) income from continuing operations		6,630	(5,873)
Interest income, interest expense, income tax expense, gain on extinguishment of convertible senior notes, and other expense, net		712	140
Net income (loss) from continuing operations		$ 7,342	$ (5,733)