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Other intangible assets
 12 Months Ended
Dec. 31, 2011
Other intangible assets [Abstract]  
Other intangible assets

Note 11. Other intangible assets

The changes in the carrying amount of core deposit intangibles for the years ended December 31, 2011 and 2010 are as follows:

 

                 
    2011     2010  

Core Deposit Intangible:

                

Balance as of January 1,

     53,208       69,108  

Amortization expense

     15,012       15,900  
   

 

 

    

 

 

  

Balance as of December 31,

     38,196       53,208  
   

 

 

    

 

 

  
     

Total other intangible assets

   $ 38,196     $ 53,208  
   

 

 

    

 

 

  

Amortization expense for the years ended December 31, 2011, 2010 and 2009 was $15,012, $15,900 and $16,788, respectively. Expected future amortization expenses are as follows:

 

         
Years Ending      

December 31,

   Amount  

2012

   $ 14,124  

2013

     13,236  

2014

     10,836  
   

 

 

  

Total

   $ 38,196