CONTINGENT FORWARD CONTRACTS - Valuation Assumptions (Details)	Apr. 30, 2021 year	Feb. 28, 2021 year
Stock Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent forward contract liability, measurement input		13.79
Fair value of Series E convertible preferred share
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent forward contract liability, measurement input	13.79
Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent forward contract liability, measurement input	1.0000	1.0000
Expected term (in years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent forward contract liability, measurement input	0.11	0.01
Risk-free rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent forward contract liability, measurement input	0.0003	0.0003