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CONVERTIBLE PREFERRED STOCK - Future Tranche Right (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Apr. 06, 2021
Jul. 31, 2022
Jul. 31, 2021
Apr. 30, 2021
Jul. 31, 2022
Jul. 31, 2021
Jan. 31, 2022
May 07, 2020
Subsidiary, Sale of Stock [Line Items]                
Future tranche right, fair value               $ 3,400
Temporary equity   $ 436,321     $ 436,321   $ 436,321  
Change in fair value of future tranche right   0 $ 0   0 $ (15,810)    
Series B Preferred Stock                
Subsidiary, Sale of Stock [Line Items]                
Temporary equity $ 237,000 235,693     235,693   235,693  
Change in fair value of future tranche right       $ 15,800        
Future tranche right $ 37,000              
Series B Preferred Stock | Series B Private Placement                
Subsidiary, Sale of Stock [Line Items]                
Sale of stock, number of shares issued (in shares) 200,000              
Series A Preferred Stock                
Subsidiary, Sale of Stock [Line Items]                
Temporary equity   $ 200,628     $ 200,628   $ 200,628 $ 203,400