Income taxes (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2026	Jul. 31, 2025
Effective Income Tax Rate Reconciliation [Line Items]
Income tax expense (benefit)	$ 1,321	$ (1,217)	$ 3,081	$ (482)
Effective tax rate (as a percent)			38.70%	12.90%
AccessOne
Effective Income Tax Rate Reconciliation [Line Items]
Discrete tax expense	1,254		$ 1,936
Measurement period adjustments	$ 469		$ 1,020

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details