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Income Taxes - Schedule of Components of Deferred Taxes (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Sep. 30, 2023
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Income Tax Disclosure [Abstract] |  |
Net operating loss carryforwards | $ 114,366 | $ 125,306
Deferred credits | 695 | 1,057
Other accrued expenses | 1,562 | 1,234
Prepaids and other | 252 | 556
Warrant liabilities | 5,767 | 5,748
Other reserves and estimated losses | 1,090 | 937
Operating lease liabilities | 2,306 | 2,991
Deferred revenue | 2,217 | 4,829
Interest expense carryforward | 9,258 | 6,457
Gross deferred tax assets | 137,512 | 149,115
Less: valuation allowance | (41,648) | (21,102)
Total net deferred tax assets | 95,864 | 128,013
Operating lease right-of-use assets | (1,883) | (2,475)
Property and equipment | (102,253) | (131,805)
Unrealized loss/(gain) on equity investments | 98 | (2,148)
Total deferred tax liabilities | (104,037) | (136,427)
Net deferred tax liabilities | $ (8,173) | $ (8,414)

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