Annual report pursuant to Section 13 and 15(d)

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

v3.22.2.2
Equity - Summary of the Company's RSU Activity (Details) - $ / shares
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
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) 715,447    
Granted (in shares) 465,246    
Cancelled/Forfeited (in shares) (50,122)    
Vested (in shares) (389,613)    
Non-vested shares outstanding at the end of the period (in shares) 740,958 715,447  
Weighted-Average Grant-Date Fair Value      
Non-vested shares outstanding at the beginning of the period (in dollars per share) $ 74.06    
Granted (in dollars per share) 79.75    
Cancelled/Forfeited (in dollars per share) 81.10    
Vested (in dollars per share) 74.20    
Non-vested shares outstanding at the end of the period (in dollars per share) $ 77.08 $ 74.06  
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) 630,443    
Granted (in shares) 361,606    
Cancelled/Forfeited (in shares) (49,793)    
Vested (in shares) (389,613)    
Non-vested shares outstanding at the end of the period (in shares) 552,643 630,443  
Weighted-Average Grant-Date Fair Value      
Granted (in dollars per share)   $ 76.80 $ 74.26
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) 85,004    
Granted (in shares) 103,640    
Cancelled/Forfeited (in shares) (329)    
Vested (in shares) 0    
Non-vested shares outstanding at the end of the period (in shares) 188,315 85,004