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Goodwill and Other Intangible Assets
12 Months Ended
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets
Goodwill and Other Intangible Assets
(In Thousands)
Changes in the carrying amount of goodwill during the years ended December 31, 2013 and 2012 were as follows:
 
 
Goodwill
Balance at December 31, 2011
$
184,879

Adjustment to previously recorded goodwill
(20
)
Balance at December 31, 2012
$
184,859

Addition to goodwill from First M&F acquisition
91,333

Adjustment to previously recorded goodwill
(92
)
Balance at December 31, 2013
$
276,100



The adjustments to previously recorded goodwill in 2013 and 2012 reflect tax benefits associated with the exercise of stock options assumed in connection with prior acquisitions.
The following table provides a summary of finite-lived intangible assets as of the dates presented:
 
 
Gross  Carrying
Amount
 
Accumulated
Amortization
 
Net Carrying
Amount
December 31, 2013
 
 
 
 
 
Core deposit intangible
$
38,317

 
$
(11,750
)
 
$
26,567

Customer relationship intangible
1,970

 
(307
)
 
1,663

Total finite-lived intangible assets
$
40,287

 
$
(12,057
)
 
$
28,230

December 31, 2012
 
 
 
 
 
Core deposit intangible
$
13,284

 
$
(9,013
)
 
$
4,271

Customer relationship intangible
1,970

 
(175
)
 
1,795

Total finite-lived intangible assets
$
15,254

 
$
(9,188
)
 
$
6,066



Aggregate amortization expense for the years ended December 31, 2013, 2012 and 2011 was $2,869, $1,381 and $1,742, respectively. The estimated amortization expense of finite-lived intangible assets for future periods is summarized as follows:
 
2014
$
5,607

2015
4,878

2016
4,260

2017
3,549

2018
2,989

Thereafter
6,947

Total
$
28,230