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Intangible Assets, Net
 6 Months Ended
Jun. 30, 2012
Intangible Assets, Net [Abstract]  
Intangible Assets, Net
3. Intangible Assets, Net

Intangible assets, net are summarized as follows:

 

                 
    June 30,     December 31,  
    2012     2011  

($ in thousands)

                

Definite-lived intangible assets:

                

Investment contracts

   $ 197,143     $ 269,489  

Accumulated amortization

     (179,372 )      (249,809 ) 
   

 

 

    

 

 

  

Definite-lived intangible assets, net

     17,771       19,680  

Indefinite-lived intangible assets

     32,416       32,416  
   

 

 

    

 

 

  

Total intangible assets, net

   $ 50,187     $ 52,096  
   

 

 

    

 

 

  

Activity in intangible assets, net is as follows:

 

                 
    Six Months Ended June 30,  
    2012     2011  

($ in thousands)

                

Intangible assets, net

                

Balance, beginning of period

   $ 52,096     $ 52,977  

Purchases

     —         141  

Amortization

     (1,909 )      (2,040 ) 
   

 

 

    

 

 

  

Balance, end of period

   $ 50,187     $ 51,078