FAIR VALUE MEASUREMENTS - Assets, Liabilities, Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Loss / (Gain) on fair value adjustments included in earnings	$ (1,797)	$ (877)	$ (277)	$ 18,261
Private Placement Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Loss / (Gain) on fair value adjustments included in earnings	(1,797)	$ (877)	(277)	$ (8,919)
Foxconn Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Derivative liability, ending balance	300		300
Fair Value, Inputs, Level 3 [Member] | Private Placement Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Derivative liability, beginning balance			485
Loss / (Gain) on fair value adjustments included in earnings			(277)
Derivative liability, ending balance	208		208
Fair Value, Inputs, Level 3 [Member] | Foxconn Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Additions			323
Derivative liability, ending balance	$ 323		$ 323