Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS - Fair value of warrant liabilities (Details)

v3.22.2.2
FAIR VALUE MEASUREMENTS - Fair value of warrant liabilities (Details) - USD ($)
 2 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Nov. 02, 2020
Oct. 12, 2020
Jul. 01, 2019
Dec. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]              
Fair value as of beginning period             $ 56,360,000
Initial measurement     $ 38,110,000        
Change in valuation inputs or other assumptions           $ 18,250,000 21,498,000
Fair value as of ending period       $ 77,858,000 $ 77,858,000 56,360,000 77,858,000
Private Placement Warrants              
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]              
Fair value as of beginning period             23,700,000
Initial measurement     15,800,000        
Change in valuation inputs or other assumptions           7,900,000 8,848,000
Fair value as of ending period       32,548,000 32,548,000 23,700,000 32,548,000
Public Warrants              
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]              
Fair value as of beginning period             32,660,000
Initial measurement     $ 22,310,000        
Change in valuation inputs or other assumptions           10,350,000 12,650,000
Fair value as of ending period       45,310,000 45,310,000 $ 32,660,000 45,310,000
Prosus Agreement Liability              
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]              
Initial measurement   $ 45,045,478          
Change in valuation inputs or other assumptions         5,432,712    
Fair value as of ending period       50,481,190 50,481,190   50,481,190
Conversion Option Liabilities              
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]              
Initial measurement $ 1,493,877            
Change in valuation inputs or other assumptions       110,482      
Fair value as of ending period       $ 1,604,359 $ 1,604,359   $ 1,604,359