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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2016
Earnings Per Share [Abstract] |
Reconciliation Between Basic and Diluted Earnings Per Share | A reconciliation between basic and diluted earnings per share is as follows (in thousands, except per share data):
| Quarter Ended March 31,
| 2016 |  | 2015
Net income for basic and diluted earnings per share | $ | 99,140 |  |  | $ | 45,230 |
Weighted-average common shares outstanding | 216,914 |  |  | 219,626 |
Dilutive effect of stock options, performance share awards and restricted stock awards | 955 |  |  | 1,216 |
Diluted weighted-average shares outstanding | 217,869 |  |  | 220,842 |
Basic earnings per share | $ | 0.46 |  |  | $ | 0.21 |
Diluted earnings per share | $ | 0.46 |  |  | $ | 0.20 |

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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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