Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2021	$ 2,766,606	$ 14	$ 2,856,572	$ 41	$ (90,021)
Beginning balance (in shares) at Dec. 31, 2021		135,137
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans	11,693		11,693
Issuance of common stock pursuant to equity incentive plans (in shares)		2,792
Stock-based compensation expense	156,632		156,632
Foreign currency translation adjustment	(412)			(412)
Net Loss	(138,627)				(138,627)
Ending balance at Jun. 30, 2022	2,795,892	$ 14	3,024,897	(371)	(228,648)
Ending balance (in shares) at Jun. 30, 2022		137,929
Beginning balance at Mar. 31, 2022	2,813,165	$ 14	2,929,519	(41)	(116,327)
Beginning balance (in shares) at Mar. 31, 2022		135,971
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans	8,341		8,341
Issuance of common stock pursuant to equity incentive plans (in shares)		1,958
Stock-based compensation expense	87,037		87,037
Foreign currency translation adjustment	(330)			(330)
Net Loss	(112,321)				(112,321)
Ending balance at Jun. 30, 2022	2,795,892	$ 14	3,024,897	(371)	(228,648)
Ending balance (in shares) at Jun. 30, 2022		137,929
Beginning balance at Dec. 31, 2022	2,646,556	$ 14	3,234,860	(292)	(588,026)
Beginning balance (in shares) at Dec. 31, 2022		140,027
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans	1,504		1,504
Issuance of common stock pursuant to equity incentive plans (in shares)		1,481
Stock-based compensation expense	186,051		186,051
Foreign currency translation adjustment	363			363
Net Loss	(301,199)				(301,199)
Ending balance at Jun. 30, 2023	2,533,275	$ 14	3,422,415	71	(889,225)
Ending balance (in shares) at Jun. 30, 2023		141,508
Beginning balance at Mar. 31, 2023	2,550,641	$ 14	3,332,222	35	(781,630)
Beginning balance (in shares) at Mar. 31, 2023		140,785
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock pursuant to equity incentive plans	614		614
Issuance of common stock pursuant to equity incentive plans (in shares)		723
Stock-based compensation expense	89,579		89,579
Foreign currency translation adjustment	36			36
Net Loss	(107,595)				(107,595)
Ending balance at Jun. 30, 2023	$ 2,533,275	$ 14	$ 3,422,415	$ 71	$ (889,225)
Ending balance (in shares) at Jun. 30, 2023		141,508