Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details)

v3.21.2
Stockholders' Equity (Details)
$ / shares in Units, $ in Millions
 1 Months Ended
Jul. 01, 2021
USD ($)
Jun. 29, 2021
shares
Oct. 31, 2020
USD ($)
$ / shares
shares
Oct. 31, 2021
USD ($)
$ / shares
shares
Jun. 25, 2021
vote
$ / shares
shares
Jan. 31, 2021
$ / shares
shares
Jan. 31, 2012
$ / shares
shares
Class of Stock [Line Items]              
Common stock, shares authorized (in shares) | shares       0   299,000,000  
Common stock, par value (in dollars per share) | $ / shares       $ 0.00003   $ 0.00003  
Preferred stock, shares authorized (in shares) | shares       20,000,000 20,000,000 0  
Preferred stock, par value (in dollars per share) | $ / shares       $ 0.00003 $ 0.00003 $ 0.00003  
Net proceeds from offering | $ $ 276.0            
Number of shares called by warrants or rights (in shares) | shares       2,500,000     231,000
Warrant exercise price (in dollars per share) | $ / shares       $ 10.00     $ 0.08
Fair value of warrants | $       $ 7.6      
Private Placement              
Class of Stock [Line Items]              
Net proceeds from offering | $     $ 200.0        
Common Class A              
Class of Stock [Line Items]              
Common stock, shares authorized (in shares) | shares       2,000,000,000 2,000,000,000 0  
Common stock, par value (in dollars per share) | $ / shares       $ 0.00003 $ 0.00003 $ 0.00003  
Votes per share | vote         1    
Common stock, conversion ratio         1    
Common Class B              
Class of Stock [Line Items]              
Common stock, shares authorized (in shares) | shares       310,000,000 310,000,000 0  
Common stock, par value (in dollars per share) | $ / shares       $ 0.00003 $ 0.00003 $ 0.00003  
Votes per share | vote         10    
Common stock, conversion ratio         1    
Shares issued upon conversion of convertible preferred stock (in shares) | shares         120,902,273    
Convertible preferred stock, conversion ratio         1    
Shares issued upon cashless exercise of common stock warrants (in shares) | shares   230,259          
Series G-1 Preferred Stock              
Class of Stock [Line Items]              
Offering price (in dollars per share) | $ / shares     $ 9.25        
Carrying value of preferred stock | $       $ 95.9      
Series G-1 Preferred Stock | Private Placement              
Class of Stock [Line Items]              
Number of shares issued and sold (in shares) | shares     10,800,000        
Offering price (in dollars per share) | $ / shares     $ 9.25        
Series G-2 Preferred Stock              
Class of Stock [Line Items]              
Offering price (in dollars per share) | $ / shares     $ 11.00        
Carrying value of preferred stock | $       $ 95.9      
Series G-2 Preferred Stock | Private Placement              
Class of Stock [Line Items]              
Number of shares issued and sold (in shares) | shares     9,100,000        
Offering price (in dollars per share) | $ / shares     $ 11.00