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v3.23.3

Equity and Stock-Based Compensation - Stock Options - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Intrinsic value of options outstanding | $ 0.4 |  |
Intrinsic value of options exercisable | $ 0.4 |  |
Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Common stock price | $ 7.62 |  |
Intrinsic value of stock options exercised | $ 0.6 | $ 0.8 | $ 0.8
Stock Options | Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Option vesting period | 1 year |  |
Stock Options | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expiration period | 10 years |  |
Option vesting period | 3 years |  |

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