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Earnings (Loss) Per Share (Tables) | 12 Months Ended
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Dec. 31, 2014
Earnings Per Share [Abstract] |
Computation of Earnings (Loss) Per Share | For the years ended December 31, 2014, 2013, and 2012, earnings (loss) per share were computed as follows (in thousands, except per-share amounts):
|  | Year Ended December 31, |
|  | 2014 |  |  | 2013 |  |  | 2012 |
Weighted average shares: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares outstanding |  |  | 50,789 |  |  |  | 50,693 |  |  |  | 51,566 |
Effect of dilutive securities outstanding |  |  | 591 |  |  |  | 370 |  |  |  | 277 |
Diluted weighted average shares outstanding |  |  | 51,380 |  |  |  | 51,063 |  |  |  | 51,843 |
Earnings (loss): |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 32,429 |  |  | $ | 134,225 |  |  | $ | 121,897 |
Income from discontinued operations |  |  | 0 |  |  |  | 133 |  |  |  | 1,007 |
Net income (loss) |  | $ | 32,429 |  |  | $ | 134,358 |  |  | $ | 122,904 |
Basic per share amounts: |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 0.64 |  |  | $ | 2.65 |  |  | $ | 2.36 |
Income from discontinued operations |  |  | 0.00 |  |  |  | 0.00 |  |  |  | 0.02 |
Net income (loss) |  | $ | 0.64 |  |  | $ | 2.65 |  |  | $ | 2.38 |
Diluted per share amounts: |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 0.63 |  |  | $ | 2.63 |  |  | $ | 2.35 |
Income from discontinued operations |  |  | 0.00 |  |  |  | 0.00 |  |  |  | 0.02 |
Net income (loss) |  | $ | 0.63 |  |  | $ | 2.63 |  |  | $ | 2.37 |
Potentially Dilutive Securities Excluded from Earnings (Loss) Per Share Calculation | The potentially dilutive securities that were excluded from the earnings (loss) per share calculation consist of stock options and stock appreciation rights (SARs) with an exercise price greater than the average market price of the Class A Common Stock. These options were as follows:
|  | Year Ended December 31, |
|  | 2014 |  |  | 2013 |  |  | 2012 |
Potentially dilutive shares |  |  | 175,902 |  |  |  | 168,472 |  |  |  | 1,753,311 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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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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