STOCKHOLDERS’ (DEFICIT) EQUITY - Narrative (Details)		1 Months Ended			12 Months Ended
	Jan. 19, 2022 $ / shares shares	Jul. 31, 2022 USD ($) $ / shares shares	Mar. 31, 2022 shares	Jul. 31, 2021 USD ($)	Dec. 31, 2022 USD ($) vote $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($)	Aug. 19, 2022	Jun. 08, 2022 shares	Jan. 18, 2022 shares	Jan. 31, 2021 $ / shares shares	Mar. 31, 2020 $ / shares shares
Class of Stock [Line Items]
Common stock, shares authorized (in shares)					10,000,000,000	10,000,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.00001				$ 0.0001	$ 0.00010
Voting rights per share | vote					1
Exercise price of warrants (in dollars per share) | $ / shares					$ 11.50
Common stock, exchange ratio	1.6001528688
Issuances of common stock | $					$ 12,674,000
Payment-in-kind interest | $					31,382,000	$ 7,274,000	$ 0
Debt instrument, convertible price (in dollars per share) | $ / shares	$ 8.00
SPAC vesting shares (in shares)										1,700,000
Issuances of common stock- vendor settlement (in shares)			1,600,000
Number of consecutive days				30 days
Lockup period				180 days
Vendor liability, contractual amount | $				$ 21,300,000
Vendor liability, changes in fair value | $					9,500,000
Vendor liability, fair value | $					$ 18,100,000
Number of common shares available for grant, outstanding (in shares)					69,100,000
Nonvested RSAs, RSUs and Options (in shares)					45,200,000
Common shares purchased for award (in shares)					23,915,000	31,942,000
B. Riley | Common Stock Equity Line Of Credit
Class of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares		$ 0.0001
Sale of stock, authorized amount | $		$ 100,000,000
Purchase share volume maximum calculation, denominator		0.20
Percent of closing sale price of the common stock		75.00%
Discount rate		3.00%
Equity line of credit, threshold automatic termination period		24 months
Equity line of credit, threshold aggregate gross purchase price | $		$ 100,000,000
Equity line of credit, threshold trading days		30 days
Equity line of credit, termination terms, prior written notice term		5 days
Reimbursement of legal fees | $		$ 100,000
Sale of stock, number of shares issued (in shares)					13,400,000
Sale of stock, consideration received on transaction | $					$ 20,700,000
Equity line of credit, discount | $					600,000
Convertible Debt
Class of Stock [Line Items]
Note payable face amount | $						$ 514,800,000
Debt instrument, increase | $					31,400,000
Debt instrument, convertible price (in dollars per share) | $ / shares	$ 8.00
Bridge Loan | Amended B. Riley Bridge Notes
Class of Stock [Line Items]
Bridge loan, additional payments required, percentage of amounts drawn under equity line of credit								25.00%
Debt instrument, additional payments required | $					5,300,000
Conversion of Convertible Notes
Class of Stock [Line Items]
Debt conversion, converted amount | $					$ 1,600,000
Debt conversion, converted instrument, shares issued (in shares)					200,000
Conversion of XPDI's Common Stock to New Core Common Stock
Class of Stock [Line Items]
Recapitalization transaction, conversion ratio										1
Common Stock
Class of Stock [Line Items]
Issuances of common stock- Merger with XPDI (in shares)	30,800,000
Equity line of credit, shares remaining for issuance (in shares)					56,900,000
Common Stock, Commitment Shares | B. Riley | Common Stock Equity Line Of Credit
Class of Stock [Line Items]
Issuance of common stock (in shares)		600,000
Issuances of common stock | $		$ 1,100,000
Options
Class of Stock [Line Items]
Dividend yield					0.00%	0.00%
Restricted Stock Units (RSUs)
Class of Stock [Line Items]
Nonvested RSAs, RSUs and Options (in shares)					45,217,000	88,600,000
2018 Plan
Class of Stock [Line Items]
Dividend yield					0.00%
Share-based compensation, weighted average grant date fair value (in dollars per share) | $ / shares						$ 10.92
Options vested, weighted average grant date aggregated fair value | $					$ 600,000	$ 35,600,000
Option, unrecognized share-based compensation expense | $					$ 83,000,000
2018 Plan | Options
Class of Stock [Line Items]
Share-based compensation, award vesting period					4 years
Share-based compensation, award expiration period					10 years
Period for recognition					3 years 1 month 6 days
2018 Plan | Restricted Stock Units (RSUs)
Class of Stock [Line Items]
Share-based compensation, award vesting period					4 years	4 years	4 years
Period for recognition					3 years
RSUs, unrecognized share-based compensation expense | $					$ 98,200,000
Share-based payment arrangement, cost expected to be recognized | $					75,300,000
Share-based payment arrangement, cost not expected to be recognized | $					$ 22,900,000
2018 Plan | Minimum
Class of Stock [Line Items]
Share-based compensation, award vesting period					1 year
2018 Plan | Maximum | Options
Class of Stock [Line Items]
Share-based compensation, award expiration period					10 years
2021 Equity Incentive Plan
Class of Stock [Line Items]
Share-based compensation, number of shares authorized (in shares)					45,000,000
Number of common shares available for grant (in shares)					30,600,000
2021 Equity Incentive Plan | Options
Class of Stock [Line Items]
Share-based compensation, award expiration period					10 years
2021 Equity Incentive Plan | Minimum
Class of Stock [Line Items]
Share-based compensation, award vesting period					1 year
Amendment to 2018 Omnibus Incentive Plan | Restricted Stock Units (RSUs)
Class of Stock [Line Items]
Number of common shares to be net settled (in shares)									42,000,000
Number of shares to be forfeited and cancelled (in shares)									15,000,000
Public Warrants | XPDI
Class of Stock [Line Items]
Number of common stock called by warrants (in shares)										8,600,000
Private Placement Warrants
Class of Stock [Line Items]
Number of common stock called by warrants (in shares)					6,300,000
Private Placement Warrants | XPDI
Class of Stock [Line Items]
Number of common stock called by warrants (in shares)										6,300,000
Executive Notes Warrants
Class of Stock [Line Items]
Number of common stock called by warrants (in shares)												6,400,000
Exercise price of warrants (in dollars per share) | $ / shares												$ 0.84
Class of warrant or right, warrants exercised			3,200,000		4,400,000
Exercise of warrants (in shares)			2,900,000		3,000,000
Shares withheld for tax withholding obligation (in shares)			300,000
Service Providers Warrants
Class of Stock [Line Items]
Number of common stock called by warrants (in shares)												200,000
Exercise price of warrants (in dollars per share) | $ / shares												$ 4.27
Stockholder Warrants
Class of Stock [Line Items]
Number of common stock called by warrants (in shares)											200,000
Exercise price of warrants (in dollars per share) | $ / shares											$ 4.21