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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jul. 31, 2023 | Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2023 | Oct. 31, 2022
Income Taxes [Line Items] |  |  |  |  |
Income tax (benefit) expense |  | $ 1,645 | $ 1,112 | $ (113) | $ 4,958
Unrecognized tax benefits |  | 22,600 |  | $ 22,600 |
U.S. federal tax authorities [Member] | Earliest tax year [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Income tax examination, year |  |  |  | 2020 |
U.S. federal tax authorities [Member] | Latest tax year [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Income tax examination, year |  |  |  | 2023 |
U.S. state tax authorities [Member] | Earliest tax year [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Income tax examination, year |  |  |  | 2019 |
U.S. state tax authorities [Member] | Latest tax year [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Income tax examination, year |  |  |  | 2023 |
Foreign tax authorities [Member] | Earliest tax year [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Income tax examination, year |  |  |  | 2016 |
Foreign tax authorities [Member] | Latest tax year [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Income tax examination, year |  |  |  | 2023 |
Oculii Corp [Member] |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Valuation allowance | $ 3,600 | $ 400 |  | $ 4,000 |

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