FAIR VALUE MEASUREMENTS - Assets, Liabilities, Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Loss / (Gain) on fair value adjustments included in earnings	$ 1,520	$ 19,138
Private Placement Warrants [Member]
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	1,520	$ (8,042)
Derivative liability, ending balance	2,005
Fair Value, Inputs, Level 3 [Member] | Private Placement Warrants [Member]
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	1,520
Derivative liability, ending balance	$ 2,005