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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2013
Earnings Per Share (Tables) [Abstract] |
Earnings Per Share | Basic and diluted earnings per common share were calculated as follows (in thousands, except per share data):
| Three Months Ended September 30, 2013
| Net Earnings |  | Weighted Average Shares |  | Per Share
Basic earnings per common share | $ | 27,622 |  |  | 53,438 |  |  | $ | 0.52 |
Effect of dilutive stock awards | — |  |  | 374 |  |  |
Diluted earnings per common share | $ | 27,622 |  |  | 53,812 |  |  | $ | 0.51 |
| Three Months Ended September 30, 2012
| Net Earnings |  | Weighted Average Shares |  | Per Share
Basic earnings per common share | $ | 39,910 |  |  | 58,882 |  |  | $ | 0.68 |
Effect of dilutive stock awards | — |  |  | 430 |  |  |
Diluted earnings per common share | $ | 39,910 |  |  | 59,312 |  |  | $ | 0.67 |
| Nine Months Ended September 30, 2013
| Net Earnings |  | Weighted Average Shares |  | Per Share
Basic earnings per common share | $ | 116,083 |  |  | 55,423 |  |  | $ | 2.09 |
Effect of dilutive stock awards | — |  |  | 377 |  |  |
Diluted earnings per common share | $ | 116,083 |  |  | 55,800 |  |  | $ | 2.08 |
| Nine Months Ended September 30, 2012
| Net Earnings |  | Weighted Average Shares |  | Per Share
Basic earnings per common share | $ | 136,033 |  |  | 59,098 |  |  | $ | 2.30 |
Effect of dilutive stock awards | — |  |  | 511 |  |  |
Diluted earnings per common share | $ | 136,033 |  |  | 59,609 |  |  | $ | 2.28 |

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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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