Annual report pursuant to Section 13 and 15(d)

Equity - Narrative (Details)

v3.24.3
Equity - Narrative (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
2 Months Ended 12 Months Ended
Nov. 21, 2024
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Jun. 30, 2024
Stock-based compensation          
Deferred vested award (in shares)   301      
Intrinsic value vested   $ 65,800      
Share-based compensation expense   35,300 $ 29,500 $ 30,500  
Income tax benefit recognized   11,000 8,100 $ 6,900  
Unrecognized compensation cost   $ 39,800      
Unrecognized compensation costs, period for recognition   3 years      
Granted (in dollars per share)   $ 82.61      
Stock repurchase programs, authorized amount         $ 200,000
Common shares repurchased (in shares)   900   1,400  
Common shares repurchased, cost   $ 73,069 $ 0 $ 96,119  
Amount remaining available for future stock repurchases   $ 171,400      
Subsequent Event          
Stock-based compensation          
Common shares repurchased (in shares) 500        
Common shares repurchased, cost $ 43,200        
Average          
Stock-based compensation          
Unrecognized compensation costs, period for recognition   1 year 2 months 12 days      
Restricted Stock Units          
Stock-based compensation          
Vesting period     5 years    
Granted (in dollars per share)     $ 70.38 $ 79.75  
Total fair value   $ 39,600 $ 29,800 $ 23,500  
Restricted Stock Units | Member of Board of Directors          
Stock-based compensation          
Vesting period   1 year      
Restricted Stock Units | Minimum          
Stock-based compensation          
Vesting period   3 years      
Restricted Stock Units | Maximum          
Stock-based compensation          
Vesting period   4 years      
Performance Stock Units          
Stock-based compensation          
Vesting period   3 years      
Unrecognized compensation costs, period for recognition   3 years      
Performance Stock Units | Minimum          
Stock-based compensation          
Vesting rights, percentage   0.00%      
Performance Stock Units | Maximum          
Stock-based compensation          
Vesting rights, percentage   200.00%