Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Net revenue	$ 139,073	$ 117,968
Costs of revenue	40,394	33,807
Gross profit	98,679	84,161
Operating expenses:
Compensation and benefits	86,050	94,990
Technology	14,811	13,118
Professional services	5,695	3,870
Occupancy	917	1,094
Depreciation and amortization	5,331	3,537
Marketing and advertising	469	378
Other operating expenses	3,944	3,905
Executive chairman long-term performance award	0	13,121
Total operating expenses	117,217	134,013
Loss from operations	(18,538)	(49,852)
Other income, net	10,513	13,926
Loss before income tax expense	(8,025)	(35,926)
Income tax expense	235	134
Net loss	(8,260)	(36,060)
Other comprehensive income (loss), net of taxes:
Change in foreign currency translation adjustment	126	(112)
Net change in unrealized loss on short-term investments	(88)	(1,474)
Net other comprehensive income (loss)	38	(1,586)
Comprehensive loss	$ (8,222)	$ (37,646)
Net loss per share attributable to Class A and Class B common stockholders
Basic (in dollars per share)	$ (0.02)	$ (0.07)
Diluted (in dollars per share)	$ (0.02)	$ (0.07)
Weighted-average shares used in computing net loss per share attributable to Class A and Class B common stockholders
Basic (in shares)	501,222,000	517,987,000
Diluted (in shares)	501,222,000	517,987,000