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Basis of Consolidation and Presentation (Tables)
 3 Months Ended
Mar. 31, 2012
Calculation of Income Per Share From Continuing and Discontinued Operations

The following table presents information necessary to calculate income from continuing operations per share, loss from discontinued operations per share and net income per share for the three months ended March 31, 2012 and 2011 as well as potentially dilutive securities excluded from the weighted average number of diluted common shares outstanding, as their inclusion would have been anti-dilutive (in thousands, except per share amounts):

 

     Three Months Ended
March 31,		  
     2012     2011  

BASIC EPS:

     

Income from continuing operations

    $ 97,274      $ 71,619   

Adjust for income attributed to holders of non-vested restricted stock

      (742 )      (501 ) 
  

 

 

    

 

 

  

Income from continuing operations attributed to common stockholders

    $ 96,532      $ 71,118   
  

 

 

    

 

 

  

Loss from discontinued operations, net

    $ —        $ (367 ) 

Adjust for loss attributed to holders of non-vested restricted stock

      —          3   
  

 

 

    

 

 

  

Loss from discontinued operations attributed to common stockholders

    $ —        $ (364 ) 
  

 

 

    

 

 

  

Weighted average number of common shares outstanding, excluding non-vested shares of restricted stock

      154,625        153,122   
  

 

 

    

 

 

  

Basic income from continuing operations per common share

    $ 0.62      $ 0.46   

Basic loss from discontinued operations per common share

    $ 0.00      $ 0.00   

Basic net income per common share

    $ 0.62      $ 0.46   

DILUTED EPS:

     

Income from continuing operations attributed to common stockholders

    $ 96,532      $ 71,118   

Add incremental earnings related to potential common shares

      —          4   
  

 

 

    

 

 

  

Adjusted income from continuing operations attributed to common stockholders

    $ 96,532      $ 71,122   
  

 

 

    

 

 

  

Weighted average number of common shares outstanding, excluding non-vested shares of restricted stock

      154,625        153,122   

Add dilutive effect of potential common shares

      776        1,531   
  

 

 

    

 

 

  

Weighted average number of diluted common shares outstanding

      155,401        154,653   
  

 

 

    

 

 

  

Diluted income from continuing operations per common share

    $ 0.62      $ 0.46   

Diluted loss from discontinued operations per common share

    $ 0.00      $ 0.00   

Diluted net income per common share

    $ 0.62      $ 0.46   

Potentially dilutive securities excluded as anti-dilutive

      3,229        725