DESCRIPTION OF BUSINESS (Details) $ / shares in Units, ر.س in Millions					1 Months Ended			3 Months Ended		12 Months Ended
	Mar. 29, 2024 USD ($)	Mar. 24, 2024 USD ($) $ / shares shares	May 31, 2023 USD ($) shares	Apr. 29, 2022 USD ($) facility	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) facility	Mar. 31, 2024 USD ($) $ / shares shares	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) facility	Dec. 31, 2023 USD ($) $ / shares	Mar. 12, 2023 USD ($)	Nov. 08, 2022 USD ($)	Jun. 30, 2022 USD ($)	Apr. 29, 2022 SAR (ر.س) facility	Feb. 27, 2022 USD ($)	Feb. 27, 2022 SAR (ر.س)
Debt Instrument [Line Items]
Net loss								$ 680,859,000	$ 779,528,000
Accumulated deficit								$ 10,879,611,000			$ 10,198,752,000
Convertible preferred stock, par value (in dollars per share) | $ / shares								$ 0.0001			$ 0.0001
Equity Distribution Agreement
Debt Instrument [Line Items]
Consideration to be received on agreement													$ 600,000,000
Net proceeds received							$ 594,300,000
Remaining number of shares available (in shares) | shares								0
2022 Subscription Agreement | Ayar
Debt Instrument [Line Items]
Consideration to be received on agreement													$ 915,000,000
Net proceeds received							915,000,000
Underwriting Agreement
Debt Instrument [Line Items]
Consideration to be received on agreement			$ 1,200,000,000
Net proceeds received					$ 1,200,000,000
2023 Subscription Agreement | Ayar
Debt Instrument [Line Items]
Consideration to be received on agreement			$ 1,800,000,000
Net proceeds received					$ 1,800,000,000
Number of shares issued (in shares) | shares			265,693,703
2024 Subscription Agreement | Ayar | Redeemable Convertible Preferred Stock
Debt Instrument [Line Items]
Consideration to be received on agreement		$ 1,000,000,000
Net proceeds received	$ 1,000,000,000
Number of shares issued (in shares) | shares		100,000
Convertible preferred stock, par value (in dollars per share) | $ / shares		$ 0.0001
SIDF
Debt Instrument [Line Items]
Debt instrument, face amount							1,400,000,000			$ 1,400,000,000						$ 1,400,000,000	ر.س 5,190
ABL Credit Facility | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, term										5 years
Maximum borrowing capacity							1,000,000,000			$ 1,000,000,000				$ 1,000,000,000
ABL Credit Facility | Line of Credit | Bridge Loan
Debt Instrument [Line Items]
Maximum borrowing capacity														$ 100,000,000
GIB Facility Agreement | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 266,100,000		$ 266,600,000	$ 266,100,000		$ 266,600,000	$ 266,100,000		$ 266,600,000			ر.س 1,000
Number of facilities | facility				2			2			2					2
GIB Facility Agreement | Line of Credit | Revolving Credit Facility | Saudi Arabian Interbank Offered Rate
Debt Instrument [Line Items]
Interest rate						1.40%
GIB Facility Agreement | Line of Credit | Bridge Loan
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 173,000,000			$ 173,000,000			$ 173,000,000					ر.س 650
GIB Facility Agreement | Line of Credit | Bridge Loan | Saudi Arabian Interbank Offered Rate
Debt Instrument [Line Items]
Interest rate				1.25%
GIB Facility Agreement | Line of Credit | Working Capital Facility
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 93,100,000			$ 93,100,000			$ 93,100,000					ر.س 350
GIB Facility Agreement | Line of Credit | Working Capital Facility | Saudi Arabian Interbank Offered Rate
Debt Instrument [Line Items]
Interest rate				1.70%