CONVERTIBLE PREFERRED STOCK - Narrative (Details)						1 Months Ended											2 Months Ended	12 Months Ended
	Jul. 23, 2021 shares	Dec. 31, 2020 USD ($) shares		Dec. 24, 2020 USD ($) shares	Dec. 22, 2020 USD ($) shares	Apr. 30, 2021 USD ($) $ / shares shares	Mar. 31, 2021 USD ($)	Feb. 28, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares		Sep. 30, 2020 USD ($) condition $ / shares shares	Aug. 31, 2020 USD ($) $ / shares shares	Jun. 30, 2020 USD ($) shares	Mar. 31, 2020 USD ($) shares	Oct. 31, 2019 USD ($)	Apr. 30, 2019 USD ($)	Apr. 30, 2021 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) shares		Dec. 31, 2021 USD ($) shares		Dec. 31, 2020 USD ($) shares		Jul. 22, 2021 shares	Dec. 31, 2019 USD ($) shares
Class of Stock [Line Items]
Convertible preferred stock, shares issued (in shares) | shares																		0		0				437,182,072
Convertible preferred stock, shares outstanding (in shares) | shares		957,159,704	[1]						957,159,704	[1]								0	[1]	0	[1]	957,159,704	[1]	437,182,072	502,582,534	[1]
Convertible preferred stock, value		$ 2,494,076,000							$ 2,494,076,000									$ 0		$ 0		$ 2,494,076,000			$ 1,074,010,000
Number of milestone conditions required to receive funding | condition											2
Contingent forward contract liability, fair value loss																		0		454,546,000		118,382,000
Stock-based compensation expense																		$ 423,500,000		$ 516,757,000		4,614,000
Common stock, shares authorized (in shares) | shares								1,316,758,889										15,000,000,000		15,000,000,000
Convertible preferred stock, shares authorized (in shares) | shares								1,155,909,398
Eligible Holders
Class of Stock [Line Items]
Aggregate value of convertible preferred shares approved for issuance								$ 71,000,000
Series E Contingent Forward Contract Liability
Class of Stock [Line Items]
Contingent forward contract, fair value		110,500,000		$ 110,500,000		$ 722,400,000		1,444,900,000	110,500,000		$ 800,000						$ 722,400,000			$ 0		110,500,000
Contingent forward contract liability, fair value loss																						109,700,000
Series C
Class of Stock [Line Items]
Payments for repurchase of convertible preferred stock																		$ 0		0		12,101,000
Series C | Third Company Repurchase
Class of Stock [Line Items]
Number of shares authorized to be repurchased (in shares) | shares												9,656,589
Price of stock repurchased (in dollars per share) | $ / shares												$ 1.02
Payments for repurchase of convertible preferred stock												$ 9,900,000
Cumulative adjustments to additional paid in capital for share repurchases		$ 10,500,000							$ 10,500,000													$ 10,500,000
Convertible preferred stock, value												$ 20,400,000
Series C | Fourth Company Repurchase
Class of Stock [Line Items]
Number of shares authorized to be repurchased (in shares) | shares		1,850,800							1,850,800													1,850,800
Price of stock repurchased (in dollars per share) | $ / shares									$ 1.21
Payments for repurchase of convertible preferred stock									$ 2,200,000
Cumulative adjustments to additional paid in capital for share repurchases		$ 2,200,000							2,200,000													$ 2,200,000
Convertible preferred stock, value		4,500,000							4,500,000													4,500,000
Series B
Class of Stock [Line Items]
Payments for repurchase of convertible preferred stock																		0		3,000,000		0
Series B | Fifth Company Repurchase
Class of Stock [Line Items]
Number of shares authorized to be repurchased (in shares) | shares					3,525,332
Payments for repurchase of convertible preferred stock					$ 3,000,000
Cumulative adjustments to additional paid in capital for share repurchases		$ 1,000,000							1,000,000													1,000,000
Convertible preferred stock, value					$ 4,000,000
Convertible preferred shares subject to repurchase, mandatory redemption term		45 days
Series D
Class of Stock [Line Items]
Proceeds from issuance of convertible preferred stock													$ 200,000,000	$ 200,000,000	$ 400,000,000	$ 200,000,000		0		3,000,000		$ 400,000,000
Issuance of convertible preferred shares (in shares) | shares													82,496,121	82,496,092								164,992,213	[1]
Series E
Class of Stock [Line Items]
Proceeds from issuance of convertible preferred stock				$ 400,000,000		$ 92,900,000	$ 107,100,000	$ 400,000,000	$ 400,000,000		$ 500,000,000						$ 200,000,000	$ 0		$ 600,000,000		$ 899,725,000
Issuance of convertible preferred shares (in shares) | shares				133,818,821		66,909,408		133,818,821			167,273,525									200,728,229	[1]	301,092,346	[1]
Preferred stock, price (in dollars per share) | $ / shares						$ 2.99		$ 2.99			$ 2.99						$ 2.99
Convertible preferred stock, additional shares approved for issuance (in shares) | shares								200,700,000
Stock-based compensation expense																				$ 123,600,000
Series E | Eligible Holders
Class of Stock [Line Items]
Preferred stock, price (in dollars per share) | $ / shares								$ 2.99
Convertible preferred shares approved for issuance (in shares) | shares								23,737,221
Series E | Additional Purchasers
Class of Stock [Line Items]
Preferred stock, price (in dollars per share) | $ / shares								$ 2.99
Series E | Management
Class of Stock [Line Items]
Issuance of convertible preferred shares (in shares) | shares																	3,034,194
Series E | Director
Class of Stock [Line Items]
Issuance of convertible preferred shares (in shares) | shares																	1,658,705
Series E | Chief Executive Officer
Class of Stock [Line Items]
Issuance of convertible preferred shares (in shares) | shares						535,275
Common Stock
Class of Stock [Line Items]
Conversion of convertible preferred stock into common stock in connection with the reverse recapitalization (in shares) | shares	1,155,909,367																			1,155,909,367	[1]
Legacy Preferred Shareholders
Class of Stock [Line Items]
Stock converted, after exchange ratio (in shares) | shares	1,155,909,367

[1] The number of shares of convertible preferred stock and common stock issued and outstanding prior to the Merger have been retroactively adjusted by the Exchange Ratio (as defined in Note 3 “Reverse Recapitalization”) to give effect to the reverse recapitalization treatment of the Merger. See Note 1 “Description of Business” and Note 3 “Reverse Capitalization” for more information.