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Income Taxes (Tables) | 9 Months Ended
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Sep. 30, 2011
Income Taxes |
Schedule of Income tax provision and the respective effective tax rates |
|  | For the Three Months ended |  | For the Nine Months ended |
|  | September 30, |  | September 30, |
|  | 2011 |  | 2010 |  | 2011 |  | 2010 |
Income tax provision |  | $ | 10,649 |  | $ | 7,515 |  | $ | 32,113 |  | $ | 22,961 |
Effective income tax rate |  | 16.5 | % | 17.1 | % | 18.0 | % | 17.6 | %

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- Definition Tabular disclosure of the components of income tax expense and effective income tax rate attributable to continuing operations. + Details
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- Details
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