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Significant Accounting Policies (Table) | 12 Months Ended
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Dec. 31, 2013
Significant Accounting Policies |
Schedule of reconciliation of weighted average shares outstanding |
(In thousands except per share data ) |  | 2013 |  |  | 2012 |  |  | 2011 |
Net income available for stockholders: |  | $ | 166,895 |  |  | $ | 274,436 |  |  | $ | 296,381 |
Less: Dividends paid |  |  |  |  |  |  |  |  |  |  |  |
Common stock |  |  | (86,282 | ) |  |  | (111,966 | ) |  |  | (46,479 | )
Restricted shares of common stock |  |  | (1,507 | ) |  |  | (2,103 | ) |  |  | (848 | )
Undistributed earnings |  | $ | 79,106 |  |  | $ | 160,367 |  |  | $ | 249,054 |
Allocation of undistributed earnings: |  |  |  |  |  |  |  |  |  |  |  |
Common stock |  | $ | 77,620 |  |  | $ | 157,093 |  |  | $ | 244,053 |
Restricted shares of common stock |  |  | 1,486 |  |  |  | 3,274 |  |  |  | 5,001 |
Basic shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |
Common stock |  |  | 211,305 |  |  |  | 210,707 |  |  |  | 213,153 |
Restricted shares of common stock |  |  | 4,199 |  |  |  | 4,534 |  |  |  | 4,530 |
|  |  | 215,504 |  |  |  | 215,241 |  |  |  | 217,683 |
Diluted shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |
Common stock |  |  | 211,305 |  |  |  | 210,707 |  |  |  | 213,153 |
Dilutive effect of stock-based awards |  |  | 1,229 |  |  |  | 1,555 |  |  |  | 2,567 |
|  |  | 212,534 |  |  |  | 212,262 |  |  |  | 215,720 |
Restricted shares of common stock |  |  | 4,199 |  |  |  | 4,534 |  |  |  | 4,530 |
|  |  | 216,733 |  |  |  | 216,796 |  |  |  | 220,250 |
Basic earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
Common stock: |  |  |  |  |  |  |  |  |  |  |  |
Distributed earnings |  | $ | 0.40 |  |  | $ | 0.53 |  |  | $ | 0.22 |
Undistributed earnings |  |  | 0.37 |  |  |  | 0.75 |  |  |  | 1.14 |
|  | $ | 0.77 |  |  | $ | 1.28 |  |  | $ | 1.36 |
Restricted shares of common stock: |  |  |  |  |  |  |  |  |  |  |  |
Distributed earnings |  | $ | 0.36 |  |  | $ | 0.46 |  |  | $ | 0.19 |
Undistributed earnings |  |  | 0.35 |  |  |  | 0.72 |  |  |  | 1.10 |
|  | $ | 0.71 |  |  | $ | 1.18 |  |  | $ | 1.29 |
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
Common Stock: |  |  |  |  |  |  |  |  |  |  |  |
Distributed earnings |  | $ | 0.40 |  |  | $ | 0.53 |  |  | $ | 0.22 |
Undistributed earnings |  |  | 0.37 |  |  |  | 0.74 |  |  |  | 1.13 |
|  | $ | 0.77 |  |  | $ | 1.27 |  |  | $ | 1.35 |

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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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