Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivables, Contract Assets, and Contract Liabilities - Schedule of Changes in Deferred Revenue (Detail)

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Accounts Receivables, Contract Assets, and Contract Liabilities - Schedule of Changes in Deferred Revenue (Detail)
$ in Thousands
 3 Months Ended
Apr. 30, 2022
USD ($)
Deferred Revenue, Current [Member]  
Accounts Notes And Loans Receivable [Line Items]  
Balance $ 3,947
Increase 824
Balance 4,771
Deferred Revenue, Long-Term [Member]  
Accounts Notes And Loans Receivable [Line Items]  
Balance 77
Increase 70
Balance $ 147