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EARNINGS PER SHARE (Tables) | 9 Months Ended
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Sep. 30, 2012
EARNINGS PER SHARE |
Information related to the calculation of earnings per share |
|  | Three months ended |
|  | September 30, 2012 |  | September 30, 2011 |
|  | Diluted |  | Basic |  | Diluted |  | Basic |
Consolidated operations |  |  |  |  |  |  |  |  |
Income available to common stockholders |  | $ | 42,127 |  | $ | 42,127 |  | $ | 49,297 |  | $ | 49,297 |
Average equivalent shares |  |  |  |  |  |  |  |  |
Shares of common stock |  | 66,541 |  | 66,541 |  | 66,381 |  | 66,381 |
Effect of dilutive stock based compensation |  |  |  |  |  |  |  |  |
Stock options |  | 1,804 |  | — |  | 2,291 |  | — |
Restricted stock |  | 8 |  | — |  | 5 |  | — |
Total average equivalent shares |  | 68,353 |  | 66,541 |  | 68,677 |  | 66,381 |
Net income per share |  | $ | 0.62 |  | $ | 0.63 |  | $ | 0.72 |  | $ | 0.74 |
|  | Nine months ended |
|  | September 30, 2012 |  | September 30, 2011 |
|  | Diluted |  | Basic |  | Diluted |  | Basic |
Consolidated operations |  |  |  |  |  |  |  |  |
Income available to common stockholders |  | $ | 127,622 |  | $ | 127,622 |  | $ | 145,063 |  | $ | 145,063 |
Average equivalent shares |  |  |  |  |  |  |  |  |
Shares of common stock |  | 66,439 |  | 66,439 |  | 66,747 |  | 66,747 |
Effect of dilutive stock based compensation |  |  |  |  |  |  |  |  |
Stock options |  | 2,259 |  | — |  | 2,863 |  | — |
Restricted stock |  | 13 |  | — |  | 6 |  | — |
Total average equivalent shares |  | 68,711 |  | 66,439 |  | 69,616 |  | 66,747 |
Net income per share |  | $ | 1.86 |  | $ | 1.92 |  | $ | 2.08 |  | $ | 2.17 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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