FAIR VALUE MEASUREMENTS (Details) $ / shares in Units, $ in Thousands, shares in Millions	1 Months Ended		12 Months Ended
	Jan. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)	Dec. 31, 2022 USD ($) $ / shares shares	Oct. 23, 2020 USD ($) $ / shares
FAIR VALUE MEASUREMENTS
Warrant exercise price | $ / shares						$ 11.50
Class A Common stock issued for exercise of warrants (in shares)	0.6	2.7
Cash proceeds from exercise of warrants | $	$ 82,000	$ 30,700	$ 82,016	$ 30,692
Warrant and other non-current liabilities | $			$ 1,578		$ 1,446	$ 100,900
Private warrants to purchase common stock
FAIR VALUE MEASUREMENTS
Warrant exercise price | $ / shares					$ 11.50
BGL Warrants - SBC - Equity
FAIR VALUE MEASUREMENTS
Warrant exercise price | $ / shares					10.00
Public warrants
FAIR VALUE MEASUREMENTS
Warrant exercise price | $ / shares					$ 11.50
Class A Common stock issued for exercise of warrants (in shares)			6.7
Warrants outstanding			0.0
Private warrants to purchase common stock
FAIR VALUE MEASUREMENTS
Class A Common stock issued for exercise of warrants (in shares)			0.6
Warrants outstanding			2.3		2.3
BGL Warrants - SBC - Equity
FAIR VALUE MEASUREMENTS
Warrants outstanding			1.6		1.6
Warrants issued to Foxconn
FAIR VALUE MEASUREMENTS
Warrant exercise price | $ / shares					$ 10.50
Warrants outstanding					1.7
Fair value of warrants | $					$ 300
Volatility
FAIR VALUE MEASUREMENTS
Derivative Liability, Measurement Input			50		90
Risk Free Interest Rate
FAIR VALUE MEASUREMENTS
Derivative Liability, Measurement Input			1.123		4.237