Derivative instruments and hedging activities - Schedule of Pre-tax Gains (Losses) Associated with Cash Flow Hedges (Details) - USD ($) $ in Thousands |
3 Months Ended | |
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Apr. 30, 2026 |
Apr. 30, 2025 |
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| Derivative Instruments and Hedging Activities Disclosure [Abstract] | ||
| Gain (loss) recognized in accumulated other comprehensive income (included in assessment of effectiveness) | $ (8) | $ 387 |
| Gains reclassified from accumulated other comprehensive income into income (effective portion) | (73) | 20 |
| Tax effect reclassified from accumulated other comprehensive income into income (effective portion) | $ 0 | $ 0 |
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- References No definition available.
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- Definition Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of tax expense (benefit) for reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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