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Goodwill and Other Intangible Assets
9 Months Ended
Sep. 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.

                                                   
 
                                                   
 
September 30, 2011
 
December 31, 2010
 
 
(In thousands)
Gross Carrying Amount
Accumulated Amortization
Valuation Allowance
Net Amount
 
Gross Carrying Amount
Accumulated Amortization
Valuation Allowance
Net Amount
Amortizable intangible assets:
    
    
    
 
 
    
    
    
 
Core deposit premium
$
25,720

$
(18,164
)
$

$
7,556

 
$
25,720

$
(16,108
)
$

$
9,612

Mortgage servicing rights
3,093

(1,846
)
(351
)
896

 
3,082

(1,572
)
(185
)
1,325

Total
$
28,813

$
(20,010
)
$
(351
)
$
8,452

 
$
28,802

$
(17,680
)
$
(185
)
$
10,937


Aggregate amortization expense on intangible assets was $766 thousand and $864 thousand, respectively, for the three months ended September 30, 2011 and 2010, and $2.3 million and $2.7 million for the nine months ended September 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 September 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
$
2,846

2012
2,296

2013
1,757

2014
1,281

2015
938



Changes in the carrying amount of goodwill and net other intangible assets for the nine months ended September 30, 2011 are as follows.

                   
 
                   
(In thousands)
Goodwill
Core Deposit Premium
Mortgage Servicing Rights
Balance January 1, 2011
$
125,585

$
9,612

$
1,325

Originations


11

Amortization

(2,056
)
(274
)
Impairment


(166
)
Balance September 30, 2011
$
125,585

$
7,556

$
896



Goodwill allocated to the Company's operating segments at September 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