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Income Taxes - Additional Information (Detail) - USD ($) | 12 Months Ended |
--- | --- | ---
Jan. 31, 2024 | Jan. 31, 2023 | Jan. 31, 2022 | Jan. 31, 2021
Income Taxes [Line Items] |  |  |  |
Statutory tax rate | 21.00% | 21.00% | 21.00% |
Deferred tax liabilities, not recognized | $ 7,800,000 |  |  |
Cumulative undistributed earnings of foreign subsidiaries | 86,400,000 |  |  |
Net deferred tax liabilities after valuation allowance | 656,000 |  |  |
Net deferred tax assets after valuation allowance |  | $ 18,032,000 |  |
Valuation allowance | 60,036,000 | 28,596,000 |  |
Unrecognized tax benefits | 22,628,000 | 21,656,000 | $ 30,884,000 | $ 29,527,000
Unrecognized tax benefits that would impact effective tax rate | 3,100,000 |  |  |
Interest expense and penalties related to uncertain tax positions | 50,000.00 | (700,000) | $ 300,000 |
Noncurrent liabilities related to interest and penalties for uncertain tax positions | 700,000 | 600,000 |  |
Increased (reduced) unrecognized tax benefits | 1,000,000 |  |  |
Long term income taxes payable, including estimated interest and penalties | 3,800,000 |  |  |
Maximum [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Increased (reduced) unrecognized tax benefits | (9,000,000) |  |  |
Other Long-Term Liabilities [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax liabilities considered as other long term liabilities | $ 3,100,000 | $ 3,200,000 |  |
U.S. state tax authorities [Member] | Earliest tax year [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax examination, year | 2020 |  |  |
U.S. state tax authorities [Member] | Latest tax year [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax examination, year | 2024 |  |  |
U.S. federal tax authorities [Member] | Earliest tax year [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax examination, year | 2021 |  |  |
U.S. federal tax authorities [Member] | Latest tax year [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax examination, year | 2024 |  |  |
Foreign tax authorities [Member] | Earliest tax year [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax examination, year | 2017 |  |  |
Foreign tax authorities [Member] | Latest tax year [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Income tax examination, year | 2024 |  |  |
California state [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Net operating loss carryforwards | $ 1,000,000 |  |  |
Net operating loss carryforwards begin to expire in fiscal year | 2040 |  |  |
Research and development credit carryforwards | $ 34,600,000 |  |  |
Federal [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Net operating loss carryforwards | 28,700,000 |  |  |
Research and development credit carryforwards | $ 24,000,000 |  |  |
Federal credits begin to expire in fiscal year | 2036 |  |  |

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