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Income Taxes - Income Tax Expense (Recovery) Incurred by Jurisdictions (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 31, 2024 | Jan. 31, 2023 | Jan. 31, 2022
Income Taxes |  |  |
Current income tax expense | $ 41,223 | $ 28,248 | $ 14,814
Deferred tax expense | (5,978) | 3,244 | 1,514
Income tax expense | 35,245 | 31,492 | 16,328
Canada |  |  |
Income Taxes |  |  |
Current income tax expense | 16,376 | 9,673 | 1,817
Deferred tax expense | (2,369) | 5,059 | 8,381
United States |  |  |
Income Taxes |  |  |
Current income tax expense | 16,532 | 13,085 | 8,689
Deferred tax expense | (5,060) | (1,888) | 1,941
Other countries |  |  |
Income Taxes |  |  |
Current income tax expense | 8,315 | 5,490 | 4,308
Deferred tax expense | $ 1,451 | $ 73 | $ (8,808)

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