Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Jan. 31, 2020 |
Jan. 31, 2019 |
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| Retirement Savings Plan [Member] | ||
| Pension Plans Postretirement And Other Employee Benefits [Line Items] | ||
| Defined contribution plan, cost recognized | $ 0.4 | $ 0.5 |
| X | ||||||||||
- Definition Pension Plans, Postretirement and Other Employee Benefits [Line Items] No definition available.
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| X | ||||||||||
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available.
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| X | ||||||||||
- Details
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