FAIR VALUE MEASUREMENTS - Narrative (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 126,345		$ 361,778
Embedded derivative, gain (loss) on embedded derivative, net	9,100	$ 23,700
Series A Warrant Liabilities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value adjustment of warrants	2,400	2,400
Series A Embedded Derivative Liabilities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value adjustment of warrants		221
Series B Warrant Liabilities
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value adjustment of warrants	772	$ 4,600
Arix
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 38,900
Equity Securities | Discount rate | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.03
Equity Securities | Expected term | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	3
Equity Securities | Price volatility | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.45
Series A warrants | Expected term | Black Scholes Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	5.29		5.79
Series A warrants | Price volatility | Black Scholes Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.39		0.30
Series A warrants | Risk free interest rate | Black Scholes Model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.0301		0.0133
Series B warrants | Expected term | Scenario 1 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	5.38		5.88
Series B warrants | Expected term | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.15		0.65
Series B warrants | Price volatility | Scenario 1 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.39		0.30
Series B warrants | Price volatility | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.40		0.25
Series B warrants | Risk free interest rate | Scenario 1 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.0302		0.0134
Series B warrants | Risk free interest rate | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.0146		0.0025
Embedded Derivative | Discount rate | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.159
Embedded Derivative | Expected term | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	5.38		5.87
Embedded Derivative | Price volatility | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.39		0.30
Embedded Derivative | Risk free interest rate | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0.03		0.013
Embedded Derivative | Expected dividend rate | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input	0		0
Embedded Derivative | Credit spread | Scenario 2 | Monte Carlo Method
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt instrument, measurement input			0.096