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Earnings per Share (Tables) | 9 Months Ended
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Sep. 30, 2016
Earnings Per Share [Abstract] |
Calculation of earnings (loss) per share | The following table reconciles the numerators and denominators used to calculate basic and diluted EPS and also indicates the number of antidilutive securities.
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
(In thousands, except per share data) |  | 2016 |  | 2015 |  | 2016 |  | 2015
Basic earnings per share: |  |  |  |  |  |  |  |
Net income |  | $ | 56,618 |  |  | $ | 822,852 |  |  | $ | 235,030 |  |  | $ | 1,069,582 |
Weighted average common shares outstanding |  | 349,376 |  |  | 339,701 |  |  | 343,403 |  |  | 339,504 |
Basic income per share |  | $ | 0.16 |  |  | $ | 2.42 |  |  | $ | 0.68 |  |  | $ | 3.15 |
Diluted earnings per share: |  |  |  |  |  |  |  |
Net income |  | $ | 56,618 |  |  | $ | 822,852 |  |  | $ | 235,030 |  |  | $ | 1,069,582 |
Interest expense, net of tax (1): |  |  |  |  |  |  |  |
2% Convertible Senior Notes due 2020 |  | 1,324 |  |  | 1,982 |  |  | 5,288 |  |  | 5,946 |
5% Convertible Senior Notes due 2017 |  | 673 |  |  | 3,050 |  |  | 5,080 |  |  | 9,150 |
9% Convertible Junior Subordinated Debentures due 2063 |  | — |  |  | 5,697 |  |  | — |  |  | 17,090 |
Diluted income available to common shareholders |  | $ | 58,615 |  |  | $ | 833,581 |  |  | $ | 245,398 |  |  | $ | 1,101,768 |
Weighted average shares - basic |  | 349,376 |  |  | 339,701 |  |  | 343,403 |  |  | 339,504 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Unvested restricted stock units |  | 1,395 |  |  | 1,983 |  |  | 1,428 |  |  | 2,128 |
2% Convertible Senior Notes due 2020 |  | 44,488 |  |  | 71,917 |  |  | 62,707 |  |  | 71,917 |
5% Convertible Senior Notes due 2017 |  | 10,791 |  |  | 25,674 |  |  | 13,885 |  |  | 25,674 |
9% Convertible Junior Subordinated Debentures due 2063 |  | — |  |  | 28,853 |  |  | — |  |  | 28,853 |
Weighted average shares - diluted |  | 406,050 |  |  | 468,128 |  |  | 421,423 |  |  | 468,076 |
Diluted income per share |  | $ | 0.14 |  |  | $ | 1.78 |  |  | $ | 0.58 |  |  | $ | 2.35 |
Antidilutive securities (in millions) |  | 19.0 |  |  | — |  |  | 20.4 |  |  | — |
(1) | Tax effected at a rate of 35%.

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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://www.xbrl.org/2003/role/presentationRef -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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