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Earnings per Share (Tables)
 3 Months Ended
Mar. 31, 2013
Earnings Per Share [Abstract]  
Schedule of Computation of Basic and Diluted EPS

The computation of basic and diluted EPS is as follows:

 

     Three Months Ended
March 31,		  
     2013     2012  
($ in thousands, except per share amounts)             

Net Income

    $ 14,185      $ 5,450   

Noncontrolling interests

      (225 )      —     

Allocation of earnings to preferred stockholders

      —          (64 ) 
  

 

 

    

 

 

  

Net Income Attributable to Common Stockholders

    $ 13,960      $ 5,386   
  

 

 

    

 

 

  

Shares (in thousands):

     

Basic: Weighted-average number of shares outstanding

      7,820        7,468   

Plus: Incremental shares from assumed conversion of dilutive instruments

      268        498   
  

 

 

    

 

 

  

Diluted: Weighted-average number of shares outstanding

      8,088        7,966   
  

 

 

    

 

 

  

Earnings per share - basic

    $ 1.79      $ 0.72   

Earnings per share - diluted

    $ 1.73      $ 0.68