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Net Income per Share | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Net Income per Share | Net Income per Share The following table sets forth the calculation of basic and diluted net income per share:
| December 31,
| 2016 |  | 2015 |  | 2014
| (In millions, except net income per share)
Numerator: |  |  |  |  |
Net income | $ | 52 |  |  | $ | 143 |  |  | $ | 62 |
Denominator: |  |  |  |  |
Shares outstanding at the beginning of the period | 55 |  |  | 49 |  |  | 46 |
Weighted-average number of shares issued: |  |  |  |  |
Common stock offering | — |  |  | 3 |  |  | — |
Convertible senior notes | — |  |  | — |  |  | 1 |
Denominator for basic net income per share | 55 |  |  | 52 |  |  | 47 |
Effect of dilutive securities: |  |  |  |  |
Share-based compensation | — |  |  | 1 |  |  | — |
Convertible senior notes (1) | — |  |  | 1 |  |  | 1 |
1.125% Warrants (1) | 1 |  |  | 2 |  |  | — |
Denominator for diluted net income per share | 56 |  |  | 56 |  |  | 48 |
Net income per share: (2) |  |  |  |  |
Basic | $ | 0.93 |  |  | $ | 2.75 |  |  | $ | 1.33 |
Diluted | $ | 0.92 |  |  | $ | 2.58 |  |  | $ | 1.29 |
Potentially dilutive common shares excluded from calculations: (3) |  |  |  |  |
1.125% Warrants | — |  |  | — |  |  | 13 |
_______________________________
(1) | For more information regarding the convertible senior notes, refer to Note 12, “Debt.” For more information regarding the 1.125% Warrants, refer to Note 15, “Stockholders' Equity.”
(2) | Source data for calculations in thousands.
(3) | The dilutive effect of all potentially dilutive common shares is calculated using the treasury-stock method. Certain potentially dilutive common shares issuable are not included in the computation of diluted net income per share because to do so would be anti-dilutive. For the year ended December 31, 2014, the 1.125% Warrants were excluded from diluted shares outstanding because the exercise price exceeded the average market price of our common stock.

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