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Income Per Common Share (Tables)
3 Months Ended
Mar. 31, 2012
Income Per Common Share [Abstract]  
Computation of basic and diluted net income per share
                 
   

Three Months Ended

March 31,

 
    2012     2011  

Numerator:

               

Net income

  $ 14,303     $ 20,903  

Dividends on Series B Preferred

    (240     (240

Dividends on Series D Preferred

    (60     (60

Dividends on Noncumulative Preferred

    —         (5
   

 

 

   

 

 

 

Total dividends on preferred stocks

    (300     (305
   

 

 

   

 

 

 

Numerator for basic net income per common share - net income applicable to common stock

    14,003       20,598  

Dividends on preferred stocks assumed to be converted, if dilutive

    300       305  

Interest expense including amortization of debt issuance costs, net of income taxes, on convertible debt assumed to be converted, if dilutive

    —         265  
   

 

 

   

 

 

 

Numerator for diluted net income per common share

  $ 14,303     $ 21,168  
   

 

 

   

 

 

 

Denominator:

               

Denominator for basic net income per common share - weighted-average shares

    22,323,780       21,179,800  

Effect of dilutive securities:

               

Convertible preferred stocks

    918,026       935,626  

Stock options

    281,714       355,681  

Convertible notes payable

    —         973,292  
   

 

 

   

 

 

 

Dilutive potential common shares

    1,199,740       2,264,599  
   

 

 

   

 

 

 

Denominator for diluted net income per common share - adjusted weighted-average shares and assumed conversions

    23,523,520       23,444,399  
   

 

 

   

 

 

 

Basic net income per common share

  $ .63     $ .97  
   

 

 

   

 

 

 

Diluted net income per common share

  $ .61     $ .90  
   

 

 

   

 

 

 
Antidilutive securities excluded from computation of earning per share
                 
    Three Months Ended
March 31,
 
    2012     2011  

Stock options

    254,000       2,889