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Cash and Cash Equivalents - Additional Information (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Sep. 30, 2023
Cash And Cash Equivalents [Line Items]    
Cash and cash equivalents $ 84,590 $ 100,555
Cash and cash equivalents at fair value 84,590 100,555
Money Market Funds    
Cash And Cash Equivalents [Line Items]    
Cash and cash equivalents $ 84,600 $ 100,600