XML 65 R55.htm IDEA: XBRL DOCUMENT v3.25.3
Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
Feb. 28, 2025
May 31, 2023
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2013
Stock-based compensation          
Shares tendered by employees to pay employee withholding taxes (in shares)     207,560    
Nonvested Shares, Share Units or DEU          
Stock-based compensation          
Total fair value of shares vested     $ 33.0 $ 24.4  
Nonvested Shares or Share Units Outstanding          
Stock-based compensation          
Total unrecognized compensation expense     $ 21.0    
Expected weighted average period for recognition of expense     2 years 2 months 4 days    
Vesting Based On Service | Employee | Nonvested Share Units | Incentive Program Bonus Award Fiscal Year Performance          
Stock-based compensation          
Vesting period 3 years        
Vesting Based On Service | Employee | Nonvested Share Units | Incentive Program Bonus Award Fiscal Year Performance | First Vesting Date          
Stock-based compensation          
Vesting percentage 33.33%        
Vesting Based On Service | Employee | Nonvested Share Units | Incentive Program Bonus Award Fiscal Year Performance | Second Vesting Date          
Stock-based compensation          
Vesting percentage 33.33%        
Vesting Based On Service | Employee | Nonvested Share Units | Incentive Program Bonus Award Fiscal Year Performance | Third Vesting Date          
Stock-based compensation          
Vesting percentage 33.33%        
2013 Plan          
Stock-based compensation          
Increase in number of shares authorized (in shares)   2,000,000      
Shares authorized (in shares)         7,500,000
Number of share available for future grant (in shares)     3,000,000    
2013 Plan | Vesting Based On Service | Certain Senior Management | Nonvested Shares          
Stock-based compensation          
Performance period 3 years        
2013 Plan | Vesting Based On Service | Certain Senior Management | Nonvested Shares | First Vesting Date          
Stock-based compensation          
Vesting percentage 33.33%        
2013 Plan | Vesting Based On Service | Certain Senior Management | Nonvested Shares | Second Vesting Date          
Stock-based compensation          
Vesting percentage 33.33%        
2013 Plan | Vesting Based On Service | Certain Senior Management | Nonvested Shares | Third Vesting Date          
Stock-based compensation          
Vesting percentage 33.33%        
2013 Plan | Vesting Based On Performance | Certain Senior Management | Nonvested Shares          
Stock-based compensation          
Performance period 3 years        
2013 Plan | Vesting Based On Performance | Certain Senior Management | Nonvested Shares | Maximum          
Stock-based compensation          
Vesting percent 200.00%