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Net Income Per Common Share Computations (Tables) | 12 Months Ended
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Dec. 31, 2015
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The following is a reconciliation of the numerator and denominator of the net income per common share computations:
(in thousands, except per share data) | Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Numerator for basic income from continuing operations per common share: |  |  |  |  |
Income from continuing operations | $ | 65,197 |  |  | $ | 46,357 |  |  | $ | 55,033 |
Income from continuing operations allocated to participating securities | (595 | ) |  | (267 | ) |  | (873 | )
Numerator for basic income from continuing operations per common share | $ | 64,602 |  |  | $ | 46,090 |  |  | $ | 54,160 |
Numerator for basic income per common share: |  |  |  |  |
Net income | $ | 65,197 |  |  | $ | 46,357 |  |  | $ | 54,900 |
Net income allocated to participating securities | (595 | ) |  | (267 | ) |  | (870 | )
Numerator for basic net income per common share | $ | 64,602 |  |  | $ | 46,090 |  |  | $ | 54,030 |
Numerator for diluted income from continuing operations per common share: | $ | 65,197 |  |  | $ | 46,357 |  |  | $ | 55,033 |
Numerator for diluted income per common share | $ | 65,197 |  |  | $ | 46,357 |  |  | $ | 54,900 |
Denominator for net income per common share: |  |  |  |  |
Basic | 17,225 |  |  | 17,271 |  |  | 17,294 |
Plus dilutive effect of stock options and restricted stock | 121 |  |  | 153 |  |  | 248 |
Plus dilutive effect of participating securities | 230 |  |  | 165 |  |  | 396 |
Diluted | 17,576 |  |  | 17,589 |  |  | 17,938 |
Income (loss) per common share: |  |  |  |  |
Basic |  |  |  |  |
Income from continuing operations | $ | 3.75 |  |  | $ | 2.67 |  |  | $ | 3.13 |
Discontinued operations | — |  |  | — |  |  | (0.01 | )
Net income | $ | 3.75 |  |  | $ | 2.67 |  |  | $ | 3.12 |
Diluted |  |  |  |  |
Income from continuing operations | $ | 3.71 |  |  | $ | 2.64 |  |  | $ | 3.07 |
Discontinued operations | — |  |  | — |  |  | (0.01 | )
Net income | $ | 3.71 |  |  | $ | 2.64 |  |  | $ | 3.06 |

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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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