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Fair Value Measurements - Additional Information (Details) - Level 3 - USD ($) $ in Millions | 9 Months Ended |
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Jun. 30, 2024 | Sep. 30, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Amount invested in non-marketable convertible note |  | $ 2.0
Impairment loss related to investments | $ 2.0 |

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