Finance leases and other debt - Schedule of Outstanding Finance Lease Liabilities and Other Debt (Details) - USD ($) $ in Thousands	Apr. 30, 2024	Jan. 31, 2024
Debt Instrument [Line Items]
Finance leases	$ 13,558	$ 8,309
Debt	2,877
Total finance lease liabilities and other debt	16,435	11,456
Less: current portion of finance lease liabilities and other debt	(7,745)	(6,056)
Long-term finance lease liabilities and other debt	8,690	5,400
Financing arrangements
Debt Instrument [Line Items]
Debt	2,835	3,124
Accrued interest and payments
Debt Instrument [Line Items]
Debt	$ 42	$ 23