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Property and Equipment, Net - Schedule of Property and Equipment (Detail) - USD ($)
$ in Thousands
Jan. 31, 2022
Jan. 31, 2021
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 29,265 $ 22,008
Less: accumulated depreciation and amortization (19,131) (16,478)
Total property and equipment, net 10,134 5,530
Computer equipment and software [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 16,488 11,525
Machinery and equipment [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 7,532 6,946
Furniture and fixtures [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 1,243 969
Leasehold improvements [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 2,942 2,237
Construction in progress [Member]    
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 1,060 $ 331