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Earnings Per Share | 12 Months Ended
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Dec. 31, 2015
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share Basic earnings per share are computed using the weighted average number of common shares outstanding during the period. Diluted earnings per share incorporate the incremental shares issuable upon the assumed exercise of stock options and the assumed vesting of RSUs and restricted stock. Certain of our RSUs and stock options were excluded from the calculation of diluted earnings per share because they were antidilutive, but these equity instruments could be dilutive in the future. The following chart sets forth the computation of earnings per share (in thousands, except per share amounts):
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Net Income | $ | 423,223 |  |  | $ | 381,519 |  |  | $ | 311,623 |
Denominator for basic earnings per share—Weighted-average shares outstanding | 304,722 |  |  | 302,343 |  |  | 299,574 |
Effect of dilutive securities: |  |  |  |  |
RSUs | 667 |  |  | 791 |  |  | 845 |
Stock options | 2,107 |  |  | 2,905 |  |  | 3,696 |
Restricted stock | — |  |  | 6 |  |  | 16 |
Denominator for diluted earnings per share—Adjusted weighted-average shares outstanding | 307,496 |  |  | 306,045 |  |  | 304,131 |
Earnings per share, basic | $ | 1.39 |  |  | $ | 1.26 |  |  | $ | 1.04 |
Earnings per share, diluted | $ | 1.38 |  |  | $ | 1.25 |  |  | $ | 1.02 |
The following table sets forth the number of employee stock-based compensation awards outstanding but not included in the computation of diluted earnings per share because their effect would have been antidilutive (in thousands):
| Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Antidilutive securities: |  |  |  |  |
RSUs | 230 |  |  | 289 |  |  | — |
Stock options | 96 |  |  | 116 |  |  | — |

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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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