v3.25.2
Share-Based Payments - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock-based compensation cost $ 8,841 $ 5,331 $ 19,838 $ 14,309
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (in shares)     668,700  
Percent of shares vested on time     40.00%  
Unrecognized compensation cost on non-vested awards $ 16,771   $ 16,771  
Weighted average period of recognition of unrecognized compensation cost on non-vested awards     1 year 10 months 24 days  
Restricted stock awards unvested (in shares) 98,945   98,945  
2017 Equity Incentive Plan | Stock Compensation Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Term of plan     10 years  
Amended 2017 Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares reserved for future issuance under award plan (in shares) 4,950,000   4,950,000  
Shares issuance under award plan (in shares)     1,886,557  
Options granted (in shares)     75,000  
Share-based awards outstanding (in shares) 1,655,845   1,655,845  
Percentage of outstanding stock maximum     200.00%  
Amended 2017 Plan | Time-Based Restricted Share Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (in shares)     1,517,963  
Amended 2017 Plan | Performance-Based Restricted Share Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (in shares)     1,961,834  
Retirement Eligible Employees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Future income tax benefit from compensation expense recognized $ 2,233 $ 1,351 $ 4,572 $ 3,128
Director Fee Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares deferred under stock based compensation plan (in shares) 56,663   56,663  
Value of annual stock based grant     $ 140  
Total restricted stock awards granted to date (in shares) 439,740   439,740  
Restricted stock awards unvested (in shares) 266,511   266,511  
2014 Director Fee Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Annual retainer fee paid to non-employee directors     $ 90  
Annual retainer fee paid to non-employee Chairman of the Board     $ 210  
2019 Director Fee Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares available for grants or awards (in shares) 300,000   300,000