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Goodwill and Other Intangible Assets
6 Months Ended
Jun. 30, 2011
Goodwill and Other Intangible Assets  
Goodwill and Other Intangible Assets
4. Goodwill and Other Intangible Assets
     The following table presents information about the Company's intangible assets which have estimable useful lives.
                                                                 
    June 30, 2011     December 31, 2010  
    Gross                             Gross                    
    Carrying     Accumulated     Valuation     Net     Carrying     Accumulated     Valuation     Net  
(In thousands)   Amount     Amortization     Allowance     Amount     Amount     Amortization     Allowance     Amount  
 
Amortizable intangible assets:
                                                               
Core deposit premium
  $ 25,720     $ (17,521 )   $     $ 8,199     $ 25,720     $ (16,108 )   $     $ 9,612  
Mortgage servicing rights
    3,092       (1,723 )     (174 )     1,195       3,082       (1,572 )     (185 )     1,325  
 
Total
  $ 28,812     $ (19,244 )   $ (174 )   $ 9,394     $ 28,802     $ (17,680 )   $ (185 )   $ 10,937  
 
     Aggregate amortization expense on intangible assets was $751 thousand and $911 thousand, respectively, for the three month periods ended June 30, 2011 and 2010, and $1.6 million and $1.8 million for the six month periods ended June 30, 2011 and 2010. The following table shows the estimated annual amortization expense for the next five fiscal years. This expense is based on existing asset balances and the interest rate environment as of June 30, 2011. The Company's actual amortization expense in any given period may be different from the estimated amounts depending upon the acquisition of intangible assets, changes in mortgage interest rates, prepayment rates and other market conditions.
         
(In thousands)        
 
2011
  $ 2,870  
2012
    2,331  
2013
    1,795  
2014
    1,315  
2015
    967  
 
 

     Changes in the carrying amount of goodwill and net other intangible assets for the six month period ended June 30, 2011 is as follows.
                         
                    Mortgage  
            Core Deposit     Servicing  
(In thousands)   Goodwill     Premium     Rights  
 
Balance at January 1, 2011
  $ 125,585     $ 9,612     $ 1,325  
Originations
                10  
Amortization
          (1,413 )     (151 )
Impairment reversal
                11  
 
Balance at June 30, 2011
  $ 125,585     $ 8,199     $ 1,195  
 
     Goodwill allocated to the Company's operating segments at June 30, 2011 and December 31, 2010 is shown below.
         
(In thousands)        
 
Consumer segment
  $ 67,765  
Commercial segment
    57,074  
Wealth segment
    746  
 
Total goodwill
  $ 125,585