CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Redeemable Convertible Preferred Stock	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022			1,829,314,736
Beginning balance at Dec. 31, 2022	$ 4,349,701		$ 183	$ 11,752,138	$ (20,716)	$ (11,572)	$ (7,370,332)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(779,528)						(779,528)
Other comprehensive income (loss)	4,035					4,035
Tax withholding payments for net settlement of employee awards	(6,499)			(6,499)
Issuance of common stock upon vesting of employee RSUs (in shares)			1,870,073
Issuance of common stock upon exercise of stock options (in shares)			2,200,365
Issuance of common stock upon exercise of stock options	2,181			2,181
Stock-based compensation	61,961			61,961
Ending balance (in shares) at Mar. 31, 2023			1,833,385,174
Ending balance at Mar. 31, 2023	$ 3,631,851		$ 183	11,809,781	(20,716)	(7,537)	(8,149,860)
Beginning balance (in shares) at Dec. 31, 2023	0	0
Beginning balance at Dec. 31, 2023	$ 0	$ 0
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of redeemable convertible preferred stock, net of derivative liability and issuance costs (in shares)		100,000
Issuance of redeemable convertible preferred stock, net of derivative liability and issuance costs		$ 500,549
Accretion of redeemable convertible preferred stock		$ 3,901
Ending balance (in shares) at Mar. 31, 2024	100,000	100,000
Ending balance at Mar. 31, 2024	$ 504,450	$ 504,450
Beginning balance (in shares) at Dec. 31, 2023	2,299,253,664		2,299,253,664
Beginning balance at Dec. 31, 2023	$ 4,851,692		$ 230	15,066,080	(20,716)	4,850	(10,198,752)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(680,859)						(680,859)
Other comprehensive income (loss)	(7,250)					(7,250)
Tax withholding payments for net settlement of employee awards	(3,242)			(3,242)
Issuance of common stock upon vesting of employee RSUs (in shares)			6,259,851
Issuance of common stock upon vesting of employee RSUs	$ 0		$ 1	(1)
Issuance of common stock upon exercise of stock options (in shares)	1,415,298		1,415,298
Issuance of common stock upon exercise of stock options	$ 1,525			1,525
Accretion of redeemable convertible preferred stock	(3,901)			(3,901)
Stock-based compensation	$ 74,225			74,225
Ending balance (in shares) at Mar. 31, 2024	2,306,928,813		2,306,928,813
Ending balance at Mar. 31, 2024	$ 4,232,190		$ 231	$ 15,134,686	$ (20,716)	$ (2,400)	$ (10,879,611)