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Revenue - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2022
Disaggregation of Revenue [Line Items]      
Depreciation expense $ 5,300 $ 3,800  
Contract with Customer, Liability 36,800 27,900 $ 21,600
Equipment      
Disaggregation of Revenue [Line Items]      
Contract assets $ 23,600 $ 16,600