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NET INCOME PER SHARE | 6 Months Ended
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Jun. 30, 2017
NET INCOME PER SHARE [Abstract] |
NET INCOME PER SHARE |
2. | NET INCOME PER SHARE
Net income per share is computed based on the weighted-average number of common shares outstanding during the periods presented. Additionally, diluted earnings per share data gives effect to all potentially dilutive common shares that were outstanding during the periods presented. For the three-month periods ended June 30, 2017 and 2016, stock options of 0.2 million and 2.8 million, respectively, and for the six-month periods ended June 30, 2017 and 2016, stock options of 0.6 million and 3.1 million, respectively, were excluded from the calculation of diluted earnings per share because they were anti-dilutive.

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