Annual report pursuant to Section 13 and 15(d)

Equity-Based Compensation - Performance Stock Units (Details)

v3.22.2.2
Equity-Based Compensation - Performance Stock Units (Details) - Performance Stock Units
$ in Millions
12 Months Ended
Sep. 30, 2022
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Granted (in shares) | shares 131,341
Vested (in shares) | shares 98,505
Aggregate grant date fair value $ 3.0
Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Percentage of final number of of common stock issuable upon vesting of performance stock units 0
Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Percentage of final number of of common stock issuable upon vesting of performance stock units 1.50
Percentage increase (decrease) of awards granted due to total shareholder return ranking 0.15
Equity Incentive Plan | Class A Common Stock  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Compensation expense $ 1.0
Unrecognized compensation expense $ 2.0