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Goodwill And Other Intangible Assets
9 Months Ended
Sep. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill And Other Intangible Assets
Goodwill and Other Intangible Assets
The following table presents information about the Company's intangible assets which have estimable useful lives.
 
September 30, 2018
 
December 31, 2017
 
 
(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
$
31,270

$
(28,808
)
$

$
2,462

 
$
31,270

$
(28,305
)
$

$
2,965

Mortgage servicing rights
9,701

(3,693
)

6,008

 
7,906

(3,244
)
(9
)
4,653

Total
$
40,971

$
(32,501
)
$

$
8,470

 
$
39,176

$
(31,549
)
$
(9
)
$
7,618



Aggregate amortization expense on intangible assets was $318 thousand and $338 thousand for the three month periods ended September 30, 2018 and 2017, respectively, and $952 thousand and $1.0 million for the nine month periods ended September 30, 2018 and 2017, respectively. 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, 2018. 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)
 
2018
$
1,260

2019
1,166

2020
1,003

2021
877

2022
776



Changes in the carrying amount of goodwill and net other intangible assets for the nine month period ended September 30, 2018 are as follows:
(In thousands)
Goodwill
Core Deposit Premium
Mortgage Servicing Rights
Balance January 1, 2018
$
138,921

$
2,965

$
4,653

Originations


1,795

Amortization

(503
)
(449
)
Impairment reversal


9

Balance September 30, 2018
$
138,921

$
2,462

$
6,008



Goodwill allocated to the Company’s operating segments at September 30, 2018 and December 31, 2017 is shown below.
(In thousands)
 
Consumer segment
$
70,721

Commercial segment
67,454

Wealth segment
746

Total goodwill
$
138,921