Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Schedule of Finite-Life Intangible Assets, Amortization Expense (Detail)

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Goodwill and Intangible Assets - Schedule of Finite-Life Intangible Assets, Amortization Expense (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jul. 31, 2021
Jul. 31, 2021
Goodwill And Intangible Assets [Line Items]    
Amortization expense $ 316 $ 632
Selling and Marketing [Member]    
Goodwill And Intangible Assets [Line Items]    
Amortization expense 195 390
Research and Development [Member]    
Goodwill And Intangible Assets [Line Items]    
Amortization expense $ 121 $ 242