Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity/(Deficit) - USD ($) $ in Thousands	Total	Convertible Preferred Stock	Convertible Preferred Stock Series H Preferred Stock	Class A and Class B Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income/(Loss)	Accumulated Deficit	Non- Controlling Interest
Beginning balance (in shares) at Dec. 31, 2020	337,235,000	337,235,000
Beginning balance at Dec. 31, 2020		$ 344,827
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of preferred stock (in shares)			11,889,000
Issuance of preferred stock			$ 534,286
Conversion of convertible preferred stock to common stock in connection with the direct listing (in shares)		(349,124,000)
Conversion of convertible preferred stock to common stock in connection with the direct listing		$ (879,113)
Ending balance (in shares) at Dec. 31, 2021		0
Ending balance at Dec. 31, 2021		$ 0
Balance beginning (Shares) at Dec. 31, 2020				201,327,000
Balance beginning at Dec. 31, 2020	$ (232,381)			$ 20	$ 239,792	$ 90	$ (492,290)	$ 20,007
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	33,373,000			33,372,000
Issuance of common stock upon exercise of stock options	$ 65,242			$ 3	65,284			(45)
Issuance of unregistered restricted stock awards granted in conjunction with a business combination (in shares)				487,000
Issuance of unregistered restricted stock awards granted in conjunction with a business combination	31,274				31,274
Issuance of common stock under Employee Stock Purchase Plan (in shares)				191,000
Issuance of common stock under Employee Stock Purchase Plan	11,268				11,268
Conversion of convertible preferred stock to common stock in connection with the direct listing (in shares)				349,124,000
Conversion of convertible preferred stock to common stock in connection with the direct listing	879,113			$ 35	879,078
Vesting of restricted stock units (in shares)				1,376,000
Stock-based compensation expense	341,942				341,942
Other (in shares)				1,000
Other comprehensive income/(loss)	(55)					(28)		(27)
Net loss	(503,480)						(491,651)	(11,829)
Balance ending (Shares) at Dec. 31, 2021				585,878,000
Balance ending at Dec. 31, 2021	$ 592,923			$ 58	1,568,638	62	(983,941)	8,106
Ending balance (in shares) at Dec. 31, 2022		0
Ending balance at Dec. 31, 2022		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	9,615,000			9,615,000
Issuance of common stock upon exercise of stock options	$ 22,778			$ 1	22,777
Issuance of unregistered restricted stock awards granted in conjunction with a business combination (in shares)				385,000
Issuance of unregistered restricted stock awards granted in conjunction with a business combination	10,138				10,138
Issuance of common stock under Employee Stock Purchase Plan (in shares)				575,000
Issuance of common stock under Employee Stock Purchase Plan	22,702				22,702
Vesting of restricted stock units (in shares)				8,169,000
Withholding taxes related to net share settlement of restricted stock units (in shares)				(3,000)
Withholding taxes related to net share settlement of restricted stock units	(150)				(150)
Stock-based compensation expense	589,498				589,498
Other (in shares)				55,000
Other comprehensive income/(loss)	1,287					609		678
Net loss	$ (934,141)						(924,366)	(9,775)
Balance ending (Shares) at Dec. 31, 2022	604,674,000			604,674,000
Balance ending at Dec. 31, 2022	$ 305,035			$ 59	2,213,603	671	(1,908,307)	(991)
Ending balance (in shares) at Dec. 31, 2023		0
Ending balance at Dec. 31, 2023		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock upon exercise of stock options (in shares)	10,670,000			10,670,000
Issuance of common stock upon exercise of stock options	$ 23,749			$ 2	23,747
Issuance of common stock under Employee Stock Purchase Plan (in shares)				1,065,000
Issuance of common stock under Employee Stock Purchase Plan	29,629				29,629
Vesting of restricted stock units (in shares)				14,812,000
Stock-based compensation expense	867,967				867,967
Other comprehensive income/(loss)	1,183					865		318
Net loss	$ (1,158,937)						(1,151,946)	(6,991)
Balance ending (Shares) at Dec. 31, 2023	631,221,000			631,221,000
Balance ending at Dec. 31, 2023	$ 68,626			$ 61	$ 3,134,946	$ 1,536	$ (3,060,253)	$ (7,664)