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Income (Loss) Per Share (Tables) | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following table presents the weighted-average number of shares of common stock outstanding used in the calculation of basic and diluted net income (loss) per share:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2018 |  | 2017 |  | 2018 |  | 2017
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders - basic |  | 49,557,748 |  |  | 50,554,234 |  |  | 50,080,234 |  |  | 50,462,990 |
Potentially dilutive options and restricted stock units |  | — |  |  | 45,740 |  |  | — |  |  | 221,735 |
Weighted-average shares used in computing net income (loss) per share attributable to common stockholders – diluted |  | 49,557,748 |  |  | 50,599,974 |  |  | 50,080,234 |  |  | 50,684,725 |
Basic net income (loss) per common share |  | $ | (0.67 | ) |  | $ | 3.13 |  |  | $ | (1.87 | ) |  | $ | 2.62 |
Diluted net income (loss) per common share |  | $ | (0.67 | ) |  | $ | 3.13 |  |  | $ | (1.87 | ) |  | $ | 2.61 |
Anti-dilutive equity-based incentive awards excluded from the computation of diluted loss per share |  | 3,518,070 |  |  | 6,029,156 |  |  | 3,549,770 |  |  | 4,618,618 |
Maximum price of awards excluded from the computation of diluted loss per share |  | $ | 6.75 |  |  | $ | 6.75 |  |  | $ | 6.75 |  |  | $ | 6.75 |

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