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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2013
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share Reconciliation | A reconciliation of the components of basic and diluted net income per common share is presented in the table below:
| Three Months Ended March 31,
| 2013 |  | 2012
| Income |  | Shares |  | Per Share |  | Income |  | Shares |  | Per Share
| (In thousands, except share data)
Basic: |  |  |  |  |  |  |  |  |  |  |
Net income | $ | 44,559 |  |  | 72,830,215 |  |  | $ | 0.61 |  |  | $ | 26,869 |  |  | 55,626,208 |  |  | $ | 0.48 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |
Stock options and awards | — |  |  | 504,633 |  |  |  |  | — |  |  | 621,401 |  |  |
Diluted: |  |  |  |  |  |  |  |  |  |  |
Net income | $ | 44,559 |  |  | 73,334,848 |  |  | $ | 0.61 |  |  | $ | 26,869 |  |  | 56,247,609 |  |  | $ | 0.48 |

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- Definition Tabular disclosure of the reconciliation of basic net earnings per share (or unit) to diluted earnings per share (or unit). + 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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