DESCRIPTION OF BUSINESS (Details) - USD ($)		3 Months Ended
	Jul. 23, 2021	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Net loss		$ (81,286,000)	$ (747,952,000)
Accumulated deficit		(6,147,158,000)		$ (6,065,872,000)
Proceeds from reverse recapitalization, net of transaction costs	$ 4,400,300,000
1.25% Convertible Senior Notes, Due December 2026
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Debt instrument, face amount		$ 2,012,500,000		2,012,500,000
1.25% Convertible Senior Notes, Due December 2026 | Convertible Debt
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Debt instrument, face amount				$ 2,012,500,000
Interest rate				1.25%