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Loss per common share | 3 Months Ended
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Mar. 31, 2021
Earnings Per Share [Abstract] |
Loss per common share |
14. | Loss per common share
The following table sets forth the computation of basic and diluted loss per common share for the periods presented (in thousands, except per share amounts):
|  | Three Months Ended March 31, |
|  | 2021 |  |  | 2020 |
Numerator: |  |  |  |  |  |  |  |
Net loss |  | $ | (39,383 | ) |  | $ | (56,849 | )
Denominator: |  |  |  |  |  |  |  |
Weighted average common shares for |  |  |  |  |  |  |  |
basic loss per common share |  |  | 347,219 |  |  |  | 271,460 |
Effect of dilutive securities |  |  | — |  |  |  | — |
Weighted average common shares for |  |  |  |  |  |  |  |
diluted loss per common share |  |  | 347,219 |  |  |  | 271,460 |
Loss per common share, basic and diluted |  | $ | (0.11 | ) |  | $ | (0.21 | )
S ince we reported a net loss for the three months ended March 31, 2021 and 2020, our potentially dilutive securities are deemed to be anti-dilutive, accordingly, there was no effect of dilutive securities. Therefore, our basic and diluted loss per common share and our basic and diluted weighted average common share are the same for the three months ended March 31, 2021 and 2020. The following table sets forth the securities which are not included in the calculation of diluted earnings per common share (in thousands):
|  | Three Months Ended March 31, |
|  | 2021 |  |  | 2020 |
Stock options |  |  | 23,710 |  |  |  | 25,155 |
RSUs |  |  | 7,326 |  |  |  | 4,474 |
PSUs |  |  | 2,393 |  |  |  | 2,384 |
Warrants |  |  | 5,852 |  |  |  | 1,833 |
|  | 39,281 |  |  | 33,846 |

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