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Net Loss per Share Attributable to Common Stockholders (Tables) | 3 Months Ended
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Apr. 30, 2019
Earnings Per Share [Abstract] |
Calculation of basic and diluted loss per share | The following table presents the calculation of basic and diluted net loss per share attributable to common stockholders for periods presented:
| Three Months Ended April 30,
(in thousands, except per share data) | 2019 |  | 2018
Numerator: |  |  |
Net loss | $ | (45,722 | ) |  | $ | (270,687 | )
Less: preferred stock accretion | — |  |  | (353 | )
Net loss attributable to common stockholders | $ | (45,722 | ) |  | $ | (271,040 | )
Denominator: |  |  |
Weighted-average common shares outstanding | 172,101 |  |  | 36,334 |
Net loss per share attributable to common stockholders: |  |  |
Basic and diluted | $ | (0.27 | ) |  | $ | (7.46 | )
Antidilutive securities | Outstanding potentially dilutive securities that were excluded from the diluted per share calculations because they would have been antidilutive are as follows:
| April 30,
(in thousands) | 2019 |  | 2018
Convertible preferred stock as-converted | — |  |  | 100,350 |
Stock options | 10,989 |  |  | 18,477 |
Warrants to purchase convertible preferred stock | — |  |  | 22 |
RSUs | 14,620 |  |  | 15,002 |
ESPP | 288 |  |  | — |
Total antidilutive securities | 25,897 |  |  | 133,851 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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