Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Revenue	$ 110,844	$ 98,765	$ 226,287	$ 186,134
Operating expenses:
Cost of revenue	91,646	81,330	167,490	132,605
Selling and marketing	33,197	34,637	67,145	67,222
Product and technology	14,731	15,495	28,651	29,445
General and administrative	24,371	22,779	50,629	48,608
Provision for (recovery of) doubtful accounts	(622)	48,718	(481)	48,955
Impairment loss on intangible assets and goodwill	0	55,211	0	57,232
Total operating expenses	163,323	258,170	313,434	384,067
Operating loss	(52,479)	(159,405)	(87,147)	(197,933)
Other income (expense):
Interest expense	(10,326)	(8,775)	(21,113)	(10,963)
Change in fair value of private warrant liability	1,451	15	1,026	360
Change in fair value of derivatives	(8,207)	(2,950)	(6,724)	(2,950)
Gain on extinguishment of debt	0	81,354	4,891	81,354
Investment income and realized gains, net of investment expenses	3,526	1,249	7,170	2,007
Other income, net	2,400	1,578	25,078	2,340
Total other income (expense)	(11,156)	72,471	10,328	72,148
Loss before income taxes	(63,635)	(86,934)	(76,819)	(125,785)
Income tax benefit (provision)	(688)	(29)	(866)	82
Net loss	(64,323)	(86,963)	(77,685)	(125,703)
Other comprehensive income (loss):
Change in net unrealized loss, net of tax	(208)	(780)	(1,038)	95
Comprehensive loss	$ (64,531)	$ (87,743)	$ (78,723)	$ (125,608)
Net loss per share - basic (Note 17) (in usd per share)	$ (0.65)	$ (0.91)	$ (0.79)	$ (1.32)
Net loss per share - diluted (Note 17) (in usd per share)	$ (0.65)	$ (0.91)	$ (0.79)	$ (1.32)
Weighted-average shares used in computing net loss attributable per share to common stockholders:
Shares used in computing basic net loss per share (in shares)	99,193	95,732	98,353	95,472
Shares used in computing diluted net loss per share (in shares)	99,193	95,732	98,353	95,472