v3.24.3
Equity-Based Compensation - Summary of Stock Options Outstanding (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Jun. 30, 2024
Stock Options Outstanding, Number of Stock Options      
Stock options outstanding, beginning balance (in shares) 28,901,489    
Granted (in shares) 255,145    
Exercised (in shares) (298,996)    
Forfeited or expired (in shares) (1,454,932)    
Stock options outstanding, ending balance (in shares) 27,402,706   28,901,489
Stock options vested and exercisable (in shares) 22,226,512    
Stock Options Outstanding, Weighted-Average Exercise Price      
Stock options outstanding, weighted average exercise price, beginning balance (in dollars per share) $ 20.14    
Granted, weighted-average exercise price (in dollars per share) 4.63    
Exercised, weighted-average exercise price (in dollars per share) 3.00    
Forfeited or expired, weighted-average exercise price (in dollars per share) 11.95    
Stock options outstanding, weighted average exercise price, ending balance (in dollars per share) 20.62   $ 20.14
Stock options vested and exercisable, weighted-average exercise price (in dollars per share) $ 19.40    
Stock options outstanding, weighted-average remaining contractual term (in years) 4 years 9 months 18 days   4 years 8 months 12 days
Stock options vested and exercisable, weighted-average remaining contractual term (in years) 4 years 3 months 18 days    
Stock options outstanding, aggregate intrinsic value $ 3.4    
Stock options exercised, aggregate intrinsic value 0.6 $ 5.0  
Stock options outstanding, aggregate intrinsic value 6.7   $ 3.4
Stock options vested and exercisable, aggregate intrinsic value $ 6.5