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EARNINGS PER SHARE (Tables) | 3 Months Ended
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Mar. 31, 2018
EARNINGS PER SHARE |
Reconciliation of Basic and Diluted Earnings Per Share |
|  | Three Months Ended |
|  | March 31, 2018 |  | March 31, 2017 |
|  | Diluted |  | Basic |  | Diluted |  | Basic |
Consolidated operations |  |  |  |  |  |  |  |  |  |  |  |  |
Income available to common stockholders |  | $ | 59,300 |  | $ | 59,300 |  | $ | 51,820 |  | $ | 51,820 |
Average equivalent shares |  |  |  |  |  |  |  |  |  |  |  |  |
Shares of common stock |  |  | 62,128 |  |  | 62,128 |  |  | 62,355 |  |  | 62,355 |
Effect of dilutive stock-based compensation |  |  |  |  |  |  |  |  |  |  |  |  |
Stock options |  |  | 2,216 |  |  | — |  |  | 1,827 |  |  | — |
Restricted stock |  |  | 70 |  |  | — |  |  | 52 |  |  | — |
Total average equivalent shares |  |  | 64,414 |  |  | 62,128 |  |  | 64,234 |  |  | 62,355 |
Net income per share |  | $ | 0.92 |  | $ | 0.95 |  | $ | 0.81 |  | $ | 0.83 |

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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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