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Summary of Significant Accounting Policies - Narrative (Details) - USD ($) | 3 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Employee retention credit (income) expense | $ 0 | $ 0
Restricted shares |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Restricted and performance shares (in shares) | 0 |
Performance shares |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Restricted and performance shares (in shares) | 0 |

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