Quarterly report pursuant to Section 13 or 15(d)

Equity-Based Compensation (Details)

v3.22.1
Equity-Based Compensation (Details) - Class A Common Stock - Restricted Stock - Equity Incentive Plan - Certain Directors, Officers and Employees - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options granted (in shares)     253,659  
Unrecognized compensation expense $ 16.5   $ 16.5  
General and Administrative Expense        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation expense $ 1.7 $ 0.4 $ 3.2 $ 0.9