Quarterly report pursuant to Section 13 or 15(d)

Operating Leases - Schedule of Supplemental Cash Flow Information Related to Operating Leases (Detail)

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Operating Leases - Schedule of Supplemental Cash Flow Information Related to Operating Leases (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 31, 2020
Jul. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities    
Operating cash flows from operating leases $ 244 $ 566