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Income Taxes - Income (Loss) Before Income Taxes Earned by Tax Jurisdictions (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 31, 2023 | Jan. 31, 2022 | Jan. 31, 2021
Income Taxes |  |  |
Income before income taxes | $ 133,728 | $ 102,610 | $ 70,369
Canada |  |  |
Income Taxes |  |  |
Income before income taxes | 49,158 | 36,312 | 31,307
United States |  |  |
Income Taxes |  |  |
Income before income taxes | 51,268 | 32,338 | 26,072
Other countries |  |  |
Income Taxes |  |  |
Income before income taxes | $ 33,302 | $ 33,960 | $ 12,990

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