Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Summary of Stock Option Activities (Details)

v3.21.4
Stock-Based Compensation - Summary of Stock Option Activities (Details) - Options - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Options    
Outstanding - beginning balance (in shares) 9,859,674  
Granted (in shares) 10,920  
Exercised (in shares) (765,046)  
Forfeited (in shares) (127,363)  
Outstanding - ending balance (in shares) 8,978,185 9,859,674
Exercisable at period end (in shares) 8,978,185  
Weighted Average Exercise Price    
Outstanding - beginning balance (in dollars per share) $ 0.19  
Granted (in dollars per share) 10.01  
Exercised (in dollars per share) 0.21  
Forfeited (in dollars per share) 1.09  
Outstanding - ending balance (in dollars per share) 0.19 $ 0.19
Exercisable at period end (in dollars per share) 0.19  
Weighted Average Grant Date Fair Value    
Outstanding - beginning balance (in dollars per share) 0.20  
Granted (in dollars per share) 5.49  
Exercised (in dollars per share) 0.22  
Forfeited (in dollars per share) 0.12  
Outstanding - ending balance (in dollars per share) 0.20 $ 0.20
Exercisable at period end (in dollars per share) $ 0.20  
Additional Disclosures    
Weighted Average Remaining Life (years) 5 years 8 months 12 days 6 years 9 months 18 days
Weighted Average Remaining Life, Exercisable (years) 5 years 8 months 12 days  
Intrinsic Value $ 91,699 $ 0
Intrinsic Value, Exercisable $ 91,699