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Earnings (loss) per share | 9 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Earnings (loss) per share | Earnings (loss) per share Basic earnings (loss) per share ("EPS") amounts are calculated by dividing net income (loss) allocated to common stockholders by the weighted average number of common shares outstanding. Diluted EPS amounts assume the issuance of common stock for all dilutive securities. The following table shows the basic and diluted earnings (loss) per share for the three and nine months ended September 30, 2017 and 2016:
| For the three months ended September 30,
| 2017 |  | 2016
| Income |  | Shares |  | Per Share |  | Loss |  | Shares |  | Per Share
Net income (loss) | $ | 20,783 |  |  |  |  |  |  | $ | (58,273 | ) |  |  |  |
Amount allocated to common stockholders | 92.06 | % |  |  |  |  |  | 100.00 | % |  |  |  |
Basic EPS: |  |  |  |  |  |  |  |  |  |  |
Net income (loss) allocated to common stockholders | $ | 19,132 |  |  | 87,318 |  |  | $ | 0.22 |  |  | $ | (58,273 | ) |  | 87,076 |  |  | $ | (0.67 | )
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Share-based compensation | — |  |  | 937 |  |  |  |  | — |  |  | — |  |  |
Diluted EPS: |  |  |  |  |  |  |  |  |  |  |
Net income (loss) allocated to common stockholders with assumed conversion | $ | 19,132 |  |  | 88,255 |  |  | $ | 0.22 |  |  | $ | (58,273 | ) |  | 87,076 |  |  | $ | (0.67 | )
| For the nine months ended September 30,
| 2017 |  | 2016
| Income |  | Shares |  | Per Share |  | Loss |  | Shares |  | Per Share
Net income (loss) | $ | 12,775 |  |  |  |  |  |  | $ | (83,951 | ) |  |  |  |
Amount allocated to common stockholders | 92.04 | % |  |  |  |  |  | 100 | % |  |  |  |
Basic EPS: |  |  |  |  |  |  |  |  |  |  |
Net income (loss) allocated to common stockholders | 11,758 |  |  | 87,282 |  |  | $ | 0.13 |  |  | (83,951 | ) |  | 87,059 |  |  | $ | (0.96 | )
Effect of Dilutive Securities: |  |  |  |  |  |  |  |  |  |  |
Share-based compensation | — |  |  | 788 |  |  |  |  | — |  |  | — |  |  |
Diluted EPS: |  |  |  |  |  |  |  |  |  |  |
Net loss allocated to common stockholders | $ | 11,758 |  |  | 88,070 |  |  | $ | 0.13 |  |  | $ | (83,951 | ) |  | 87,059 |  |  | $ | (0.96 | )
Securities excluded from the calculation of diluted EPS: | Three months ended September 30, |  | Nine months ended September 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Share-based compensation | 535 |  |  | 1,822 |  |  | 524 |  |  | 1,548 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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