Quarterly report pursuant to Section 13 or 15(d)

Equity (Details)

v3.22.1
Equity (Details)
 6 Months Ended
Mar. 31, 2022
voting_right
shares
Sep. 30, 2021
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) 41,192,039 36,600,639
Treasury stock, shares, acquired (in shares) 1,183  
Class A Common Stock | Restricted Stock | Equity Incentive Plan | Certain Members of Management    
Schedule Of Stockholders Equity [Line Items]    
Issuance of stock grant awards (in shares) 253,659  
Class B Common Stock    
Schedule Of Stockholders Equity [Line Items]    
Voting rights for each share | voting_right 10  
Initial public offering (in shares) 4,338,924  
Common stock, shares outstanding (in shares) 11,352,915 15,691,839