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Earnings Per Share | 3 Months Ended
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Mar. 31, 2017
Earnings Per Share [Abstract] |
Earnings Per Share | 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,
| 2017 |  | 2016
Net income for basic and diluted earnings per share | $ | 214,726 |  |  | $ | 99,140 |
Weighted-average common shares outstanding | 214,870 |  |  | 216,914 |
Dilutive effect of stock options, performance share awards and restricted stock awards | 943 |  |  | 955 |
Diluted weighted-average shares outstanding | 215,813 |  |  | 217,869 |
Basic earnings per share | $ | 1.00 |  |  | $ | 0.46 |
Diluted earnings per share | $ | 0.99 |  |  | $ | 0.46 |
There were no antidilutive shares for the quarters ended March 31, 2017 and March 31, 2016.

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