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Income Taxes - Additional Information (Detail) - USD ($) | 12 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Income Tax Disclosure [Line Items] |  |  |
Prepaid expenses and income taxes | $ 0 | $ 2,169,000 |
Recognizes interest and penalties related to uncertain tax positions | (9,000) | (14,000) | $ (13,000)
Accrued interest and penalties related to uncertain tax positions | $ 31,000 | $ 40,000 | $ 54,000
Tax fiscal years open to examination | 2018 2019 2020 2021 2022 2023 |  |

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