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Per Share Information (Tables) | 3 Months Ended
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Mar. 31, 2014
Earnings Per Share [Abstract] |
Basic and Diluted Earnings Per Share | The amounts used to compute the basic and diluted earnings per share for the three months ended March 31, 2014 and 2013 are illustrated below (in thousands):
|  | Three Months Ended March 31, |
|  | 2014 |  |  | 2013 |
AMOUNTS ATTRIBUTABLE TO COMMON STOCK: |  |  |  |  |  |  |  |
Net income attributable to common stock |  | $ | 54,408 |  |  | $ | 72,081 |
WEIGHTED AVERAGE SHARES: |  |  |  |  |  |  |  |
Weighted average shares outstanding for basic earnings per share |  |  | 219,033 |  |  |  | 213,453 |
Effect of dilutive stock options |  |  | 42 |  |  |  | 59 |
Weighted average shares outstanding for diluted earnings per share |  |  | 219,075 |  |  |  | 213,512 |

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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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