Annual report pursuant to Section 13 and 15(d)

Equity (Details)

v3.23.3
Equity (Details)
 12 Months Ended
Sep. 30, 2023
voting_right
shares
Sep. 30, 2022
shares
Class A common stock    
Schedule Of Stockholders Equity [Line Items]    
Voting rights for each share | voting_right 1  
Conversion rate 1  
Common stock, shares outstanding (in shares) 43,727,680 41,193,024
Class A common stock | Equity Incentive Plan | Restricted Stock    
Schedule Of Stockholders Equity [Line Items]    
Issuance of stock grant awards (in shares) 210,412  
Vesting of restricted stock, shares withheld for taxes 5,267  
Restricted stock, forfeitures by terminated employees (in shares) 24,893  
Class B common stock    
Schedule Of Stockholders Equity [Line Items]    
Voting rights for each share | voting_right 10  
Initial public offering (in shares) 2,354,404  
Common stock, shares outstanding (in shares) 8,998,511 11,352,915