Derivative financial instruments and hedging activities - Schedule of Derivative Amounts Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jul. 31, 2026 |
Jul. 31, 2025 |
Jul. 31, 2026 |
Jul. 31, 2025 |
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| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Amount of gains reclassified from AOCI, after tax | $ (22) | $ 0 | $ 126 | $ 0 |
| Treasury bond forwards | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Amount of gains reclassified from AOCI, before tax | (28) | 0 | 168 | 0 |
| Amount of gains reclassified from AOCI, tax | 6 | 0 | (42) | 0 |
| Amount of gains reclassified from AOCI, after tax | $ (22) | $ 0 | $ 126 | $ 0 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, after 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/disclosureRef
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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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- 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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- Details
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