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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2016
EARNINGS PER SHARE |
Reconciliation of Basic and Diluted Earnings Per Share |
|  | Three Months Ended |
|  | June 30, 2016 |  | June 30, 2015 |
|  | Diluted |  | Basic |  | Diluted |  | Basic |
Consolidated operations |  |  |  |  |  |  |  |  |  |  |  |  |
Income available to common shareholders |  | $ | 59,048 |  | $ | 59,048 |  | $ | 57,539 |  | $ | 57,539 |
Average equivalent shares |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of common stock |  |  | 63,053 |  |  | 63,053 |  |  | 62,697 |  |  | 62,697 |
Effect of dilutive stock based compensation |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options |  |  | 1,693 |  |  | — |  |  | 1,550 |  |  | — |
Restricted stock |  |  | 39 |  |  | — |  |  | 29 |  |  | — |
Total average equivalent shares |  |  | 64,785 |  |  | 63,053 |  |  | 64,276 |  |  | 62,697 |
Net income per share |  | $ | 0.91 |  | $ | 0.94 |  | $ | 0.90 |  | $ | 0.92 |
|  | Six Months Ended |
|  | June 30, 2016 |  | June 30, 2015 |
|  | Diluted |  | Basic |  | Diluted |  | Basic |
Consolidated operations |  |  |  |  |  |  |  |  |  |  |  |  |
Income available to common shareholders |  | $ | 102,911 |  | $ | 102,911 |  | $ | 102,710 |  | $ | 102,710 |
Average equivalent shares |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of common stock |  |  | 62,888 |  |  | 62,888 |  |  | 62,496 |  |  | 62,496 |
Effect of dilutive stock based compensation |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options |  |  | 2,128 |  |  | — |  |  | 2,075 |  |  | — |
Restricted stock |  |  | 47 |  |  | — |  |  | 32 |  |  | — |
Total average equivalent shares |  |  | 65,063 |  |  | 62,888 |  |  | 64,603 |  |  | 62,496 |
Net income per share |  | $ | 1.58 |  | $ | 1.64 |  | $ | 1.59 |  | $ | 1.64 |

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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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