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Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Summary of Numerator and Denominator of Basic and Fully Diluted Earnings Per Common Share

A summary of the numerator and denominator of the basic and diluted earnings per common share is presented below:

 

     Three Months Ended
March 31, 2014		      Three Months Ended
March 31, 2013		  
     Income
(Numerator)		     Shares
(Denominator)		      Per Share
Amount		      Income
(Numerator)		     Shares
(Denominator)		      Per Share
Amount		  

Net income

    $ 17,620            $ 20,387        

Less: Preferred stock dividends

      3              (34 )      

Less: Income attributable to participating securities

      (1,180 )            (459 )      
  

 

 

          

 

 

       

Basic Earnings Per Share:

                

Income allocated to common stockholders

      16,443        10,261       $ 1.60         19,894        10,650       $ 1.87   
       

 

 

          

 

 

  

Effect of Dilutive Securities:

                

Stock options

      —          149            —          159      

Convertible preferred stock

      (3 )      79            34        222      

Convertible senior notes

      1,071        1,649            —          —        
  

 

 

    

 

 

        

 

 

    

 

 

     

Diluted Earnings Per Share:

                

Income available to common stockholders and assumed conversions

    $ 17,511        12,138       $ 1.44       $ 19,928        11,031       $ 1.81