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Income Taxes - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023
Operating Loss Carryforwards [Line Items] |  |
Operating loss carryforwards | $ 290,000 |
Operating loss carryforwards, utilization period | 17 years |
Deferred tax asset, operating loss carryover | $ 68,483 | $ 0
Returns open to examination, minimum | 3 years |
Returns open to examination, maximum | 5 years |
Returns open to examination, state impact of federal changes, maximum | 2 years |
State |  |
Operating Loss Carryforwards [Line Items] |  |
Deferred tax asset, operating loss carryover | $ 1,200 |

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