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Basic and Diluted Earnings per Share | 12 Months Ended
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Dec. 31, 2015
Basic and Diluted Earnings per Share | (13) Basic and Diluted Earnings per Share Potential shares of common stock are included in the diluted earnings per share calculation when dilutive. Potential shares of common stock, consisting of common stock issuable upon exercise of outstanding employee stock options, are calculated using the treasury stock method. The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share data) for the periods indicated:
|  | Years Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Income from: |  |  |  |  |  |  |  |  |  |  |  |
Continuing operations, net of tax |  | $ | 105,931 |  |  | $ | 5,035 |  |  | $ | 26,550 |
Discontinued operations, net of tax |  |  | 0 |  |  |  | 0 |  |  |  | 56,782 |
Net income |  | $ | 105,931 |  |  | $ | 5,035 |  |  | $ | 83,332 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares of class A common stock |  |  | 9,320 |  |  |  | 9,246 |  |  |  | 9,073 |
Weighted average common shares of class B common stock |  |  | 2,035 |  |  |  | 2,055 |  |  |  | 2,227 |
Total weighted average common stock shares outstanding |  |  | 11,355 |  |  |  | 11,301 |  |  |  | 11,300 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |
Employee stock options |  |  | 184 |  |  |  | 55 |  |  |  | 1 |
Adjusted weighted average shares |  |  | 11,539 |  |  |  | 11,356 |  |  |  | 11,301 |
Earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
Basic earnings per share |  |  |  |  |  |  |  |  |  |  |  |
From continuing operations |  | $ | 9.33 |  |  | $ | 0.45 |  |  | $ | 2.35 |
From discontinued operations |  |  | 0 |  |  |  | 0 |  |  |  | 5.02 |
Basic earnings per share |  | $ | 9.33 |  |  | $ | 0.45 |  |  | $ | 7.37 |
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |
From continuing operations |  | $ | 9.18 |  |  | $ | 0.44 |  |  | $ | 2.35 |
From discontinued operations |  |  | 0 |  |  |  | 0 |  |  |  | 5.02 |
Diluted earnings per share |  | $ | 9.18 |  |  | $ | 0.44 |  |  | $ | 7.37 |
For the years ended December 31, 2015, 2014, and 2013, stock options issued under the 2013 Equity Plan to purchase a weighted average of approximately 262,000, 445,000, and 194,000 shares of class A common stock, respectively, were excluded from the diluted earnings per share calculation because their impact would have been anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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