Employee Benefit Plans - Additional Information (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2022 |
Sep. 30, 2021 |
Sep. 30, 2020 |
|
| Defined Benefit Plan Disclosure [Line Items] | |||
| Employee benefits costs | $ 1.7 | $ 1.3 | $ 0.9 |
| Employee Contributions up to 3% | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discretionary match percentage | 100.00% | ||
| Percentage of compensation | 3.00% | ||
| Employee Contributions Next 2% | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discretionary match percentage | 50.00% | ||
| Percentage of compensation | 2.00% | ||