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Net Loss Per Share (Tables) | 12 Months Ended
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Jan. 31, 2020
Earnings Per Share [Abstract] |
Schedule of Basic and Diluted Net Loss Per Share | The following table presents the calculation of basic and diluted net loss per share (in thousands, except per share data):
| Year Ended January 31,
| 2020 |  | 2019 |  | 2018
| Class A |  | Class B |  | Class A |  | Class B |  | Class A |  | Class B
Numerator: |  |  |  |  |  |  |  |  |  |  |
Net loss | $ | (192,138 | ) |  | $ | (16,775 | ) |  | $ | (107,926 | ) |  | $ | (17,571 | ) |  | $ | (31,980 | ) |  | $ | (77,869 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares outstanding, basic and diluted | 107,809 |  |  | 9,412 |  |  | 92,452 |  |  | 15,052 |  |  | 24,165 |  |  | 58,839 |
Net loss per share, basic and diluted | $ | (1.78 | ) |  | $ | (1.78 | ) |  | $ | (1.17 | ) |  | $ | (1.17 | ) |  | $ | (1.32 | ) |  | $ | (1.32 | )
Schedule of Potentially Dilutive Securities Excluded from Computation of Diluted Per Share | Potentially dilutive securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows (in thousands):
| Year Ended January 31,
| 2020 |  | 2019 |  | 2018
Issued and outstanding stock options | 12,359 |  |  | 17,804 |  |  | 24,917 |
Unvested RSUs issued and outstanding | 4,893 |  |  | 4,836 |  |  | 2,863 |
Unvested restricted stock awards issued and outstanding | 177 |  |  | 388 |  |  | 599 |
Unvested shares subject to repurchase | 5 |  |  | 48 |  |  | 188 |
Unvested restricted common stock issued and outstanding | — |  |  | 400 |  |  | 800 |
Shares committed under the ESPP | 253 |  |  | 271 |  |  | 1,149 |
Shares related to 2023 convertible senior notes | 2,494 |  |  | 7,134 |  |  | — |
Shares subject to warrants related to the issuance of 2023 convertible senior notes | 2,494 |  |  | — |  |  | — |
Shares related to 2025 convertible senior notes | 5,617 |  |  | — |  |  | — |
| 28,292 |  |  | 30,881 |  |  | 30,516 |

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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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