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Share-Based Compensation - Additional Information (Details)
shares in Thousands, $ in Thousands
1 Months Ended 9 Months Ended
Jun. 30, 2024
USD ($)
shares
Jul. 31, 2024
USD ($)
shares
Jun. 30, 2024
shares
Apr. 30, 2024
Sep. 30, 2024
USD ($)
item
shares
Sep. 30, 2023
USD ($)
Share-Based Compensation            
Share-based compensation | $         $ 10,855 $ 9,958
General and administrative            
Share-Based Compensation            
Share-based compensation | $         $ 3,360 $ 2,846
2017 Plan            
Share-Based Compensation            
Shares available for grant         962  
Maximum | 2017 Plan            
Share-Based Compensation            
Shares available for grant         3,000  
Restricted Stock Grants            
Share-Based Compensation            
Shares granted         120  
Shares vested 5 5     151  
Shares withheld for taxes   2     55  
Common stock in lieu of taxes | $   $ 324     $ 7,446  
Restricted Stock Grants | General and administrative            
Share-Based Compensation            
Share-based compensation | $ $ 558          
Restricted Stock Grants | Share-based payment arrangement, nonemployee            
Share-Based Compensation            
Shares granted     3      
Vesting period     1 year 1 year    
Restricted Stock Grants | 2008 Plan            
Share-Based Compensation            
Shares granted         117  
Vesting period         5 years  
Number of anniversaries of the vesting date following the date of grant | item         4  
Restricted Stock Grants | Share-based Compensation Award, Tranche One | 2008 Plan            
Share-Based Compensation            
Vesting right percentage         20.00%  
Restricted Stock Grants | Share-based Compensation Award, Tranche Two | 2008 Plan            
Share-Based Compensation            
Vesting right percentage         20.00%  
Restricted Stock Grants | Share-based Compensation Award, Tranche Three | 2008 Plan            
Share-Based Compensation            
Vesting right percentage         20.00%  
Restricted Stock Grants | Share-based Compensation Award Tranche Four | 2008 Plan            
Share-Based Compensation            
Vesting right percentage         20.00%  
Restricted Stock Grants | Share-based Compensation Award Tranche Five | 2008 Plan            
Share-Based Compensation            
Vesting right percentage         20.00%