Annual report pursuant to Section 13 and 15(d)

INTANGIBLE ASSETS

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INTANGIBLE ASSETS
12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
INTANGIBLE ASSETS
INTANGIBLE ASSETS
 
The Company’s intangible assets consist of core deposits, goodwill, and other intangibles arising from acquisitions. The Company has determined that core deposit intangibles have finite lives and amortizes them over their estimated useful lives. Core deposit intangible assets are being amortized over the period of expected benefit, which ranges from 4 to 14 years, using an accelerated method. Other intangible assets are being amortized over the period of expected benefit, which ranges from 5 to 10 years, using a straight-line method.

In accordance with ASC 350, Intangibles-Goodwill and Other, the Company reviews the carrying value of indefinite lived intangible assets at least annually or more frequently if certain impairment indicators exist. The Company performed its annual impairment testing in the second quarter of 2017 and determined that there was no impairment to its goodwill or intangible assets.
 
Information concerning intangible assets with a finite life is presented in the following table (dollars in thousands):
 
 
Gross Carrying
Value
 
Accumulated
Amortization
 
Net Carrying
Value
December 31, 2017
 

 
 

 
 

Amortizable core deposit intangibles
$
56,046

 
$
45,193

 
$
10,853

Other amortizable intangibles
4,715

 
765

 
3,950

December 31, 2016
 

 
 

 
 

Amortizable core deposit intangibles
$
68,367

 
$
51,987

 
$
16,380

Other amortizable intangibles
4,502

 
280

 
4,222


 
Amortization expense of intangibles for the years ended December 31, 2017, 2016, and 2015 totaled $6.1 million, $7.2 million, and $8.4 million, respectively. As of December 31, 2017, the estimated remaining amortization expense of intangibles for the years ended is as follows (dollars in thousands):
 
2018
$
4,689

2019
3,625

2020
2,536

2021
1,508

2022
698

Thereafter
1,747

Total estimated amortization expense
$
14,803