XML 61 R52.htm IDEA: XBRL DOCUMENT v3.23.2
Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 6 Months Ended
May 31, 2023
Feb. 28, 2023
Feb. 28, 2021
Jun. 30, 2023
Jun. 30, 2022
Stock-based compensation          
Shares tendered by employees to pay employee withholding taxes (in shares)       113,980  
Nonvested shares, share units or DEU          
Stock-based compensation          
Total fair value of shares vested       $ 14.5 $ 17.2
Nonvested shares or share units outstanding          
Stock-based compensation          
Total unrecognized compensation expense       $ 30.7  
Expected weighted average period for recognition of expense       2 years 3 months 10 days  
Time-Based Share Awards | Employee | Share Units | Incentive Program Bonus Award Fiscal Year Performance          
Stock-based compensation          
Vesting period     3 years    
Time-Based Share Awards | Employee | Share Units | Incentive Program Bonus Award Fiscal Year Performance | First Vesting Date          
Stock-based compensation          
Vesting percentage     33.33%    
Time-Based Share Awards | Employee | Share Units | Incentive Program Bonus Award Fiscal Year Performance | Second Vesting Date          
Stock-based compensation          
Vesting percentage     33.33%    
Time-Based Share Awards | Employee | 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)       5,600,000  
Number of share available for future grant (in shares)       3,900,000  
2013 Plan | Time-Based Share Awards | Certain Senior Management | Nonvested shares          
Stock-based compensation          
Performance period   3 years      
2013 Plan | Time-Based Share Awards | Certain Senior Management | Nonvested shares | First Vesting Date          
Stock-based compensation          
Vesting percentage     33.33%    
2013 Plan | Time-Based Share Awards | Certain Senior Management | Nonvested shares | Second Vesting Date          
Stock-based compensation          
Vesting percentage     33.33%    
2013 Plan | Time-Based Share Awards | 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 percentile   200.00%