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Income Taxes - Income Tax Expense (Recovery) Incurred by Jurisdictions (Details) - USD ($)
$ in Thousands
 12 Months Ended
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)