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Net Loss Per Share | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Net Loss Per Share |
1 3. | Net Loss Per Share
Basic net loss per share is calculated by dividing the net loss by the weighted-average number of common shares outstanding during the period. Diluted net loss per share is computed by dividing the net loss by the weighted-average number of common shares outstanding during the period and giving effect to all potentially dilutive common shares using the treasury-stock method. For purposes of this calculation, outstanding stock options and stock awards are considered to be potentially dilutive common shares and are only included in the calculation of diluted net loss per share when their effect is dilutive.
|  | December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
Basic and diluted net loss per share (in thousands, except per share amounts): |  |  |  |  |  |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (152,600 | ) |  | $ | (158,899 | ) |  | $ | (95,154 | )
Preferred stock deemed dividend |  |  | (3,267 | ) |  |  | - |  |  |  | - |
Net loss allocable to common stockholders |  | $ | (155,867 | ) |  | $ | (158,899 | ) |  | $ | (95,154 | )
Denominator for basic and diluted net loss per share allocable to common stockholders: |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average common shares outstanding |  |  | 72,024 |  |  |  | 62,362 |  |  |  | 52,613 |
Basic and diluted net loss per share allocable to common stockholders |  | $ | (2.16 | ) |  | $ | (2.55 | ) |  | $ | (1.81 | )
Outstanding stock options and stock awards were excluded from the calculation of net loss per share allocable to common stockholders as the effect of their inclusion would have been anti-dilutive.
|  | December 31, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
Outstanding securities not included in diluted net loss per share calculation (in thousands): |  |  |  |  |  |  |  |  |  |  |  |
Stock options and stock awards |  |  | 9,789 |  |  |  | 7,344 |  |  |  | 5,981 |
Series B Convertible Preferred Stock (as converted to common stock) |  |  | 4,840 |  |  |  | - |  |  |  | - |
Warrants |  |  | 5,841 |  |  |  | - |  |  |  | - |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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