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Net Loss Per Share | 3 Months Ended
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Mar. 31, 2022
Earnings Per Share [Abstract] |
Net Loss Per Share | Net Loss Per Share The table below provides a reconciliation of the numerators and denominators of basic and diluted net loss per share for the three months ended March 31, 2022 and 2021 (in thousands, except per share amounts):
|  |  | Three Months Ended March 31,
|  |  |  |  | 2022 |  | 2021 |  |
Numerators: |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  | $ | (9,424) |  |  | $ | (15,810) |  |  |
Less: Income attributable to unvested restricted stock awards |  |  |  |  | — |  |  | — |  |  |
Numerator for basic net loss per share |  |  |  |  | (9,424) |  |  | (15,810) |  |  |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |
Unvested restricted stock awards |  |  |  |  | — |  |  | — |  |  |
Numerator for diluted net loss per share |  |  |  |  | $ | (9,424) |  |  | $ | (15,810) |  |  |
Denominators: |  |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding |  |  |  |  | 61,627 |  |  | 61,169 |  |  |
Less: Weighted average number of unvested restricted stock awards outstanding |  |  |  |  | (1,129) |  |  | (1,071) |  |  |
Denominator for basic and diluted net loss per share |  |  |  |  | 60,498 |  |  | 60,098 |  |  |
Net loss per share: |  |  |  |  |  |  |  |  |
Basic |  |  |  |  | $ | (0.16) |  |  | $ | (0.26) |  |  |
Diluted |  |  |  |  | (0.16) |  |  | (0.26) |  |  |
The calculation of diluted net loss per share for the three months ended March 31, 2022 and 2021 excluded 298 thousand shares and 500 thousand shares, respectively, issuable pursuant to outstanding stock options, due to their antidilutive effect. Additionally, shares issuable upon conversion of both the 2023 Notes and the 2026 Notes were excluded due to, among other factors, their antidilutive effect.

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