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Earnings Per Share Earnings Per Share Tables (Tables) | 9 Months Ended
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Sep. 30, 2015
Earnings Per Share [Abstract] |
Schedule of Weighted Average Number of Shares | Weighted average shares-basic and diluted for the three and nine months ended September 30, 2015 and 2014, respectively, are as follows (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2015 |  | 2014 |  | 2015 |  | 2014
Weighted average shares — basic | 216,261 |  |  | 209,839 |  |  | 216,485 |  |  | 200,073 |
Dilutive potential common shares — stock options | 113 |  |  | 272 |  |  | 140 |  |  | 252 |
Weighted average shares — diluted | 216,374 |  |  | 210,111 |  |  | 216,625 |  |  | 200,325 |
Weighted average anti-dilutive stock options | 1,553 |  |  | 2,200 |  |  | 1,553 |  |  | 2,200 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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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