Derivative instruments and hedging activities - Narrative (Details) - Foreign currency cash flow hedges $ in Thousands, $ in Thousands	Apr. 30, 2026 CAD ($)	Apr. 30, 2026 USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 39,100
Foreign currency cash flow hedge loss to be reclassified during next 12 months		$ (214)
Minimum
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, remaining maturity	3 months	3 months
Maximum
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, remaining maturity	8 months	8 months
Designated as Hedging Instrument
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 35,190
Non-designated hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 3,910

- Definition

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