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Leases - Narrative (Details)
$ in Thousands
 6 Months Ended
Mar. 31, 2025
USD ($)
sublease
sublease_option
Mar. 31, 2024
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Lease liability recognized to acquire a right-of-use asset | $ $ 1,377 $ 0
Number of facilities subleased | sublease 1  
Sublease term 5 years  
Sublease number of additional extension options | sublease_option 2  
Sublease extension option period 1 year  
Weighted-average remaining lease term 5 years 4 months 24 days  
Weighted-average discount rate 6.50%  
Minimum | Facilities and Equipment    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Operating lease term (in years) 1 year  
Maximum | Facilities and Equipment    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Operating lease term (in years) 6 years