Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2021 |
Jan. 31, 2020 |
Jan. 31, 2019 |
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| Statement of Comprehensive Income [Abstract] | |||
| Net loss | $ (92,629) | $ (141,779) | $ (140,077) |
| Foreign currency translation adjustments | 2,630 | (410) | (878) |
| Reversal of unrealized gain upon sale of debt securities, net of tax | (1,320) | 0 | 0 |
| Unrealized net gain on available-for-sale-securities, net of tax | 0 | 1,321 | 6 |
| Other comprehensive income (loss) | 1,310 | 911 | (872) |
| Total comprehensive loss | $ (91,319) | $ (140,868) | $ (140,949) |
| X | ||||||||||
- Definition Other Comprehensive Income (Loss), Securities, Available-for-Sale, Reversal of Unrealized Holding Gain (Loss) Arising During Period, after Tax No definition available.
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| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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