REVERSE RECAPITALIZATION- Narrative (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Jul. 23, 2021 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) shares		Dec. 31, 2021 USD ($) shares		Dec. 31, 2020 USD ($) shares		Jul. 22, 2021 USD ($) shares	Dec. 31, 2019 shares	[1]
Schedule Of Reverse Recapitalization [Line Items]
Common stock, shares, issued (in shares)		1,830,172,561		1,648,413,415				451,295,965
Common stock, shares outstanding (in shares)	1,618,621,534	1,829,314,736		1,647,555,590				451,295,965
Share conversion deemed value (in dollars per share) | $ / shares	$ 10.00
Recapitalization exchange ratio	2.644
Stock converted, reverse recapitalization (in shares)	1,193,226,511
Equity awards outstanding (in shares)								42,182,931
Equity awards converted (in shares)	111,531,080
Convertible preferred stock, shares issued (in shares)		0		0				437,182,072
Convertible preferred stock, shares outstanding (in shares)		0	[1]	0	[1]	957,159,704	[1]	437,182,072	502,582,534
Options outstanding (in shares)		39,011,116		64,119,902				25,764,610
Options converted (in shares)	68,121,210
Non-option equity awards outstanding (in shares)								16,418,321
Non-option equity awards converted (in shares)	43,409,870
Proceeds from PIPE investment | $	$ 2,500,000
Working capital loan converted, amount | $	$ 1,500
Warrants issued for conversion of debt (in shares)	1,500,000
Price per warrant for warrants issued for conversion of debt (in dollars per share) | $ / shares	$ 1.00
Sponsor earnback shares (in shares)	17,250,000
Sponsor earnback warrants (in shares)	14,783,333			14,783,333
Proceeds from the reverse capitalization | $	$ 4,439,200	$ 0		$ 4,439,153		$ 0
Cash received upon completion of merger | $	2,070,100
Cash and cash equivalents | $		1,735,765		6,262,905		614,412		$ 400
Payments for repurchase of common stock | $	$ 200	0		20,716		0
Shares repurchased (in shares)	21,644
Reverse recapitalization, transaction costs incurred | $	$ 38,900
Reverse recapitalizations, reduction to additional paid-in capital | $	36,200
Transaction costs expensed | $	2,700	$ 0		$ 2,717		$ 0
Proceeds from reverse recapitalization, net of transaction costs | $	$ 4,400,300
Churchill
Schedule Of Reverse Recapitalization [Line Items]
Common stock, shares outstanding (in shares)								207,000,000
Stock repurchased during period, shares (in shares)	21,644
Stock repurchased during period, value | $	$ 200
Reverse recapitalization transaction costs paid to date | $								$ 131,400
Legacy Common Shareholders
Schedule Of Reverse Recapitalization [Line Items]
Stock converted, reverse recapitalization (in shares)	1,193,226,511
Legacy Preferred Shareholders
Schedule Of Reverse Recapitalization [Line Items]
Stock converted, reverse recapitalization (in shares)	437,182,072
PIPE Investors
Schedule Of Reverse Recapitalization [Line Items]
Shares outstanding prior to merger (in shares)	166,666,667
Preferred stock, price (in dollars per share) | $ / shares	$ 15.00

[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.