Property and Equipment, Net - Schedule of Property and Equipment (Detail) - USD ($) $ in Thousands	Oct. 31, 2023	Jan. 31, 2023
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 36,226	$ 34,177
Less: accumulated depreciation and amortization	(25,309)	(22,363)
Total property and equipment, net	10,917	11,814
Computer hardware and software [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	22,869	20,733
Tools and equipment [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	8,174	8,325
Furniture and fixtures [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	1,347	1,311
Leasehold improvements [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	3,414	3,295
Construction in progress [Member]
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 422	$ 513