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Related Party Transactions - Additional Information (Detail) $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Oct. 31, 2023 shares | Aug. 31, 2018 | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Jun. 30, 2020 subleaseAgreement
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Number of sublease agreements | subleaseAgreement |  |  |  |  |  |  | 2
Operating lease rent expense | $ |  |  | $ 0.3 | $ 0.3 | $ 0.6 | $ 0.6 |
Public Stock Offering | Subsequent Event |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Number of shares issued in transaction (in shares) | 8,475,500 |  |  |  |  |  |
Private Placement | Subsequent Event |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Number of shares issued in transaction (in shares) | 4,473,684 |  |  |  |  |  |
Related Party |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Purchase obligation, termination notice period (in days) |  | 90 days |  |  |  |  |
Related Party | Public Stock Offering | Subsequent Event |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Number of shares issued in transaction (in shares) | 1,526,316 |  |  |  |  |  |

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