Annual report pursuant to Section 13 and 15(d)

Equity - Summary of the Company's RSU Activity (Details)

v3.23.3
Equity - Summary of the Company's RSU Activity (Details) - $ / shares
12 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Non-vested shares outstanding at the beginning of the period (in shares) 740,958    
Granted (in shares) 494,380    
Vested (in shares) (399,475)    
Forfeited (in shares) (183,971)    
Non-vested shares outstanding at the end of the period (in shares) 651,892 740,958  
Weighted Average Grant Date Fair Value      
Non-vested shares outstanding at the beginning of the period (in dollars per share) $ 77.08    
Granted (in dollars per share) 70.38    
Vested (in dollars per share) 71.87    
Forfeited (in dollars per share) 76.13    
Non-vested shares outstanding at the end of the period (in dollars per share) $ 75.46 $ 77.08  
Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Non-vested shares outstanding at the beginning of the period (in shares) 552,643    
Granted (in shares) 353,687    
Vested (in shares) (337,684)    
Forfeited (in shares) (87,512)    
Non-vested shares outstanding at the end of the period (in shares) 481,134 552,643  
Weighted Average Grant Date Fair Value      
Granted (in dollars per share)   $ 79.75 $ 76.80
Performance Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Non-vested shares outstanding at the beginning of the period (in shares) 188,315    
Granted (in shares) 140,693    
Vested (in shares) (61,791)    
Forfeited (in shares) (96,459)    
Non-vested shares outstanding at the end of the period (in shares) 170,758 188,315