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Earnings (Loss) per Common Share | 9 Months Ended
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Sep. 30, 2021
Earnings (Loss) per Common Share [Abstract] |
Earnings (Loss) per Common Share | 15. Earnings (Loss) per Common Share The following table sets forth the computation of basic and diluted loss per common share (in thousands, except per share data):
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
Basic income (loss) per common share | 2021 |  | 2020 |  | 2021 |  | 2020
Net income (loss) | $ | 10,582 |  | $ | (2,870) |  | $ | 5,266 |  | $ | (13,224)
Net (income) loss allocated to participating securities |  | (63) |  |  | 20 |  |  | (34) |  |  | 93
Net income (loss) allocated to common shareholders | $ | 10,519 |  | $ | (2,850) |  | $ | 5,232 |  | $ | (13,131)
Basic weighted-average common shares outstanding |  | 39,086 |  |  | 37,912 |  |  | 38,924 |  |  | 37,608
Basic income (loss) per common share | $ | 0.27 |  | $ | (0.08) |  | $ | 0.13 |  | $ | (0.35)
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
Diluted income (loss) per common share | 2021 |  | 2020 |  | 2021 |  | 2020
Net income (loss) | $ | 10,582 |  | $ | (2,870) |  | $ | 5,266 |  | $ | (13,224)
Net (income) loss allocated to participating securities |  | (55) |  |  | 20 |  |  | (34) |  |  | 93
Net loss attributable to convertible senior notes |  | 919 |  |  | -- |  |  | -- |  |  | --
Net income (loss) allocated to common shareholders | $ | 11,446 |  | $ | (2,850) |  | $ | 5,232 |  | $ | (13,131)
Basic weighted-average common shares outstanding |  | 39,086 |  |  | 37,912 |  |  | 38,924 |  |  | 37,608
Effect of dilutive stock options and awards |  | 505 |  |  | -- |  |  | 572 |  |  | --
Effect of convertible senior notes |  | 4,862 |  |  | -- |  |  | -- |  |  | --
Diluted weighted-average common shares outstanding |  | 44,453 |  |  | 37,912 |  |  | 39,496 |  |  | 37,608
Diluted income (loss) per common share | $ | 0.26 |  | $ | (0.08) |  | $ | 0.13 |  | $ | (0.35)
We excluded stock options from the calculation of diluted weighted-average common shares outstanding if the per share value, including the sum of (i) the exercise price of the options and (ii) the amount of the compensation cost attributed to future services and not yet recognized, was greater than the average market price of the shares because the inclusion of these stock options would be antidilutive to loss per common share. For the three and nine months ended September 30, 2021 539,000 and 517,000 of potential common shares relating to stock options, respectively, were antidilutive and excluded from the calculation of diluted weighted-average common shares outstanding. For the three and nine months ended September 30, 2020 all stock options and awards were excluded from the calculation of diluted weighted-average common shares outstanding as these would be antidilutive due to the net loss. We excluded 4,860,685 of potential common shares related to our Convertible Senior Notes calculated under the if-converted method, as these shares would be antidilutive for the nine months ended September 30, 2021.

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