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Earnings per share | 3 Months Ended
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Mar. 31, 2014
Earnings Per Share [Abstract] |
Earnings (loss) per share | Earnings (loss) per share Basic earnings (loss) per share ("EPS") amounts are calculated by dividing earnings available to common shareholders by the weighted average number of common shares outstanding. Diluted EPS amounts assume the issuance of common stock for all potentially dilutive common shares outstanding. The following table shows the basic and diluted earnings (loss) per share for the three months ended March 31, 2014 and 2013:
| For the three months ended March 31,
| 2014 |  | 2013
| Loss | Shares (000) | Per-Share |  | Income | Shares (000) | Per-Share
Net income (loss) | $ | (20,104 | ) |  |  |  | $ | 8,253 |  |  |
Amount allocated to common shareholders (1) | 100 | % |  |  |  | 91.69 | % |  |
Basic EPS: |  |  |  |  |  |  |
Income (loss) allocable to common shareholders | (20,104 | ) | 88,717 |  | $ | (0.23 | ) |  | 7,567 |  | 88,555 |  | $ | 0.09 |
Effect of Dilutive Securities: |  |  |  |  |  |  |
Share-based compensation plans | — |  | — |  |  |  | — |  | 465 |  |
Diluted EPS: |  |  |  |  |  |  |
Income (loss) applicable to common shareholders with assumed conversion | $ | (20,104 | ) | 88,717 |  | $ | (0.23 | ) |  | $ | 7,567 |  | 89,020 |  | $ | 0.09 |
(1) | We have not allocated net losses between common and preferred shareholders, as the holders of our preferred shares do not have a contractual obligation to share in the loss.
Antidilutive securities excluded from the calculation of diluted EPS: | Three months ended March 31,
| 2014 | 2013
Stock options (1) | 603,032 |  | 347,934 |
Service-based share awards (1) | 442,456 |  | — |
(1) | In periods when we report a net loss, all share awards are excluded from the calculation of diluted weighted average shares outstanding because of their antidilutive effect on earnings (loss) per share.

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