Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue		$ 2,799,274	$ 2,225,052	$ 1,919,181
Cost and expenses:
Cost of revenue	[1]	649,115	547,658	496,870
Developer exchange fees		740,752	623,855	538,321
Infrastructure and trust & safety		878,361	689,081	456,498
Research and development		1,253,598	873,477	533,207
General and administrative		390,055	297,317	303,020
Sales and marketing		146,460	117,448	86,363
Total cost and expenses		4,058,341	3,148,836	2,414,279
Loss from operations		(1,259,067)	(923,784)	(495,098)
Interest income		141,818	38,842	92
Interest expense		(40,707)	(39,903)	(6,998)
Other income/(expense), net		(527)	(5,744)	(1,796)
Loss before income taxes		(1,158,483)	(930,589)	(503,800)
Provision for/(benefit from) income taxes		454	3,552	(320)
Consolidated net loss		(1,158,937)	(934,141)	(503,480)
Net loss attributable to noncontrolling interests		(6,991)	(9,775)	(11,829)
Net loss attributable to common stockholders		$ (1,151,946)	$ (924,366)	$ (491,651)
Net loss per share attributable to common stockholders, basic (in dollars per share)		$ (1.87)	$ (1.55)	$ (0.97)
Net loss per share attributable to common stockholders, diluted (in dollars per share)		$ (1.87)	$ (1.55)	$ (0.97)
Weighted-average common shares used in computing net loss per share attributable to common stockholders, basic (in shares)		616,445	595,559	505,858
Weighted-average shares used in computing net loss per share attributable to common stockholders—diluted (in shares)		616,445	595,559	505,858

[1] Depreciation of servers and infrastructure equipment included in infrastructure and trust & safety.