Income Taxes - Additional Information (Details) |
9 Months Ended | |
|---|---|---|
Oct. 31, 2021 |
Oct. 31, 2020 |
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| Income Tax [Line Items] | ||
| Effective income tax rate | (0.00%) | (0.10%) |
| X | ||||||||||
- Definition Income tax. No definition available.
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| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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