Annual report pursuant to Section 13 and 15(d)

Accounts Receivables, Contract Assets, and Contract Liabilities - Schedule of Accounts Receivable, Net and Unbilled Receivables (Detail)

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Accounts Receivables, Contract Assets, and Contract Liabilities - Schedule of Accounts Receivable, Net and Unbilled Receivables (Detail) - USD ($)
$ in Thousands
Jan. 31, 2021
Jan. 31, 2020
Receivables [Abstract]    
Accounts receivable, net $ 6,050 $ 12,127
Unbilled receivables 9,359 14,279
Unbilled receivables 6,340 9,031
Total, Balance $ 21,749 $ 35,437