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Goodwill and Intangible Assets
9 Months Ended
Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
Goodwill and Other Intangible Assets
In accordance with the Intangibles – Goodwill and Other topic of the FASB ASC, goodwill is not amortized but is reviewed for potential impairment at the reporting unit level. Management analyzes its goodwill for impairment on an annual basis on July 31 and between annual tests in certain circumstances such as material adverse changes in legal, business, regulatory and economic factors. An impairment loss is recorded to the extent that the carrying amount of goodwill exceeds its implied fair value.
The core deposit intangible (“CDI”) is evaluated for impairment if events and circumstances indicate a possible impairment. The CDI is amortized on an accelerated basis over an estimated life of 10 years.
The following table sets forth activity for goodwill and other intangible assets for the periods indicated:
 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
 
2014
 
2013
 
2014
 
2013
 
 
(in thousands)
Goodwill
 
 
 
 
 
 
 
 
Goodwill at beginning of period (1)
 
$
343,952

 
$
343,952

 
$
343,952

 
$
115,554

Established through acquisitions (1)
 

 

 

 
228,398

Total goodwill
 
343,952

 
343,952

 
343,952

 
343,952

Other intangible assets, net
 
 
 
 
 
 
 
 
Core deposit intangible:
 
 
 
 
 
 
 
 
Gross core deposit intangible balance at beginning of period
 
47,698

 
47,698

 
47,698

 
32,441

Accumulated amortization at beginning of period
 
(25,825
)
 
(19,441
)
 
(22,765
)
 
(16,720
)
Core deposit intangible, net at beginning of period
 
21,873

 
28,257

 
24,933

 
15,721

Established through acquisitions
 

 

 

 
15,257

CDI current period amortization
 
(1,456
)
 
(1,667
)
 
(4,516
)
 
(4,388
)
Total core deposit intangible, net at end of period
 
20,417

 
26,590

 
20,417

 
26,590

Intangible assets not subject to amortization
 
919

 
919

 
919

 
919

Other intangible assets, net at end of period
 
21,336

 
27,509

 
21,336

 
27,509

Total goodwill and other intangible assets at end of period
 
$
365,288

 
$
371,461

 
$
365,288

 
$
371,461


__________
(1) Goodwill at beginning of period for the three months ended September 30, 2013 and goodwill established through acquisitions for the nine months ended September 30, 2013 have been retrospectively adjusted due to adjustments to provisional amounts made related to the West Coast acquisition. See Note 3, Business Combinations, for additional information regarding goodwill and intangible assets recorded related to the acquisition of West Coast on April 1, 2013.
The following table provides the estimated future amortization expense of core deposit intangibles for the remaining three months ending December 31, 2014 and the succeeding four years:
 
 
Amount
 
 
(in thousands)
Year ending December 31,
 
 
2014
 
$
1,447

2015
 
4,934

2016
 
4,195

2017
 
3,361

2018
 
2,500