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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2013
Income Taxes  
Schedule of Income tax provision and the respective effective tax rates

Our income tax provision for the periods presented and the respective effective income tax rates for such periods are as follows (in thousands, except for income tax rates):

 

 

 

For the Three Months ended

 

 

 

March 31,

 

 

 

2013

 

2012

 

Income tax provision

 

$

12,291

 

$

6,615

 

 

 

 

 

 

 

Effective income tax rate

 

19.4

%

12.0

%