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Earnings / (Loss) Per Share (Tables) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Components of Basic and Diluted EPS | The components of basic and diluted earnings / (loss) per share, or EPS, are as follows (in thousands, except share and per share amounts):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Net income / (loss) | $ | 17,690 |  |  | $ | (7,652 | ) |  | $ | 40,496 |  |  | $ | 13,596 |
Less: income allocated to participating securities | — |  |  | — |  |  | — |  |  | (2 | )
Net income / (loss) attributable to common stockholders (A) | $ | 17,690 |  |  | $ | (7,652 | ) |  | $ | 40,496 |  |  | $ | 13,594 |
Weighted average common shares outstanding — basic (B) | 48,518,041 |  |  | 47,812,642 |  |  | 48,360,927 |  |  | 47,494,926 |
Dilutive effect of stock options, restricted stock units and restricted stock awards | 1,634,766 |  |  | — |  |  | 1,877,482 |  |  | 2,098,992 |
Weighted average common shares outstanding — diluted (C) | 50,152,807 |  |  | 47,812,642 |  |  | 50,238,409 |  |  | 49,593,918 |
Net income / (loss) per share: |  |  |  |  |  |  |
Basic (A/B) | $ | 0.36 |  |  | $ | (0.16 | ) |  | $ | 0.84 |  |  | $ | 0.29 |
Diluted (A/C) | $ | 0.35 |  |  | $ | (0.16 | ) |  | $ | 0.81 |  |  | $ | 0.27 |
Schedule of Securities Excluded from Calculation of Diluted Weighted Average Common Shares Outstanding Due to Anti-dilutive Effect | The following securities have been excluded from the calculation of diluted weighted average common shares outstanding as the inclusion of these securities would have an anti-dilutive effect:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Stock options | 187,792 |  |  | 191,169 |  |  | 177,292 |  |  | 191,469 |
Restricted stock awards | — |  |  | — |  |  | — |  |  | — |
Restricted stock units | 325,108 |  |  | 33,100 |  |  | 239,450 |  |  | 33,100 |
Common stock subject to repurchase | 410 |  |  | 4,005 |  |  | 410 |  |  | 4,005 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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