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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2014
Earnings Per Share [Abstract] |
Computation of Basic and Diluted Income Per Common Share | The following table sets forth the computation of basic and diluted income per common share for the periods presented (dollars and shares in thousands, except per share data).
| Three Months Ended September 30 |  | Nine Months Ended September 30
| 2014 |  | 2013 |  | 2014 |  | 2013
Numerator: |  |  |  |  |  |  |
Net income | $ | 104,445 |  |  | $ | 84,682 |  |  | $ | 294,088 |  |  | $ | 213,228 |
Less: distributed and undistributed earnings allocated to participating securities | (1,451 | ) |  | — |  |  | (4,381 | ) |  | — |
Net income attributable to common shareholders | $ | 102,994 |  |  | $ | 84,682 |  |  | $ | 289,707 |  |  | $ | 213,228 |
Denominator: |  |  |  |  |  |  |
Weighted average basic common shares outstanding | 97,165 |  |  | 96,758 |  |  | 96,954 |  |  | 96,536 |
Effect of dilutive securities | 57 |  |  | 839 |  |  | 53 |  |  | 976 |
Diluted common shares outstanding | 97,222 |  |  | 97,597 |  |  | 97,007 |  |  | 97,512 |
Basic income per common share | $ | 1.06 |  |  | $ | 0.88 |  |  | $ | 2.99 |  |  | $ | 2.21 |
Diluted income per common share | $ | 1.06 |  |  | $ | 0.87 |  |  | $ | 2.99 |  |  | $ | 2.19 |

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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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