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Earnings Per Common Share Computations (Tables) | 12 Months Ended
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Dec. 31, 2013
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following is a reconciliation of the numerator and denominator of the earnings per common share computations (in thousands, except per share data):
| Year Ended December 31,
| 2013 |  | 2012 |  | 2011
Numerator for basic earnings from continuing operations per common share: |  |  |  |  |
Earnings from continuing operations | $ | 55,033 |  |  | $ | 58,152 |  |  | $ | 60,795 |
Earnings from continuing operations allocated to participating securities | (873 | ) |  | (518 | ) |  | (1,103 | )
Numerator for basic earnings from continuing operations per common share | $ | 54,160 |  |  | $ | 57,634 |  |  | $ | 59,692 |
Numerator for basic earnings per common share: |  |  |  |  |
Net earnings | $ | 54,900 |  |  | $ | 58,276 |  |  | $ | 64,355 |
Net earnings allocated to participating securities | (870 | ) |  | (519 | ) |  | (1,180 | )
Numerator for basic net earnings per common share | $ | 54,030 |  |  | $ | 57,757 |  |  | $ | 63,175 |
Numerator for diluted earnings from continuing operations per common share: | $ | 55,033 |  |  | $ | 58,152 |  |  | $ | 60,795 |
Numerator for diluted earnings per common share | $ | 54,900 |  |  | $ | 58,276 |  |  | $ | 64,355 |
Denominator for net earnings per common share: |  |  |  |  |
Basic | 17,294 |  |  | 17,047 |  |  | 16,638 |
Plus dilutive effect of stock options and restricted stock | 248 |  |  | 233 |  |  | 118 |
Plus dilutive effect of participating securities | 396 |  |  | 195 |  |  | 369 |
Diluted | 17,938 |  |  | 17,475 |  |  | 17,125 |
Earnings (loss) per common share: |  |  |  |  |
Basic |  |  |  |  |
Earnings from continuing operations | $ | 3.13 |  |  | $ | 3.38 |  |  | $ | 3.59 |
Discontinued operations | (0.01 | ) |  | 0.01 |  |  | 0.21 |
Net earnings | $ | 3.12 |  |  | $ | 3.39 |  |  | $ | 3.80 |
Diluted |  |  |  |  |
Earnings from continuing operations | $ | 3.07 |  |  | $ | 3.33 |  |  | $ | 3.55 |
Discontinued operations | (0.01 | ) |  | 0.01 |  |  | 0.21 |
Net earnings | $ | 3.06 |  |  | $ | 3.34 |  |  | $ | 3.76 |

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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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