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Per Share Information (Tables) | 12 Months Ended
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Dec. 31, 2013
Earnings Per Share [Abstract] |
Basic and Diluted Earnings Per Share | The amounts used to compute the basic and diluted earnings per share for the years ended December 31, 2013, 2012 and 2011 are illustrated below (in thousands):
|  | Year Ended December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
AMOUNTS ATTRIBUTABLE TO COMMON STOCK: |  |  |  |  |  |  |  |  |  |  |  |
Net income from continuing operations |  | $ | 401,921 |  |  | $ | 289,694 |  |  | $ | 118,511 |
Net income from discontinued operations |  |  | — |  |  |  | 16,935 |  |  |  | 14,004 |
Net income attributable to common stock |  | $ | 401,921 |  |  | $ | 306,629 |  |  | $ | 132,515 |
WEIGHTED AVERAGE SHARES: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding for basic earnings per share |  |  | 214,929 |  |  |  | 212,777 |  |  |  | 212,648 |
Effect of dilutive stock options |  |  | 49 |  |  |  | 58 |  |  |  | 126 |
Effect of shares in escrow |  |  | — |  |  |  | — |  |  |  | 394 |
Weighted average shares outstanding for diluted earnings per share |  |  | 214,978 |  |  |  | 212,835 |  |  |  | 213,168 |

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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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