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Goodwill and Intangible Assets
12 Months Ended
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets
GOODWILL AND INTANGIBLE ASSETS

Goodwill has remained at $117.3 million as of December 31, 2018 and 2017. The annual goodwill impairment evaluations in 2018, 2017, and 2016 did not identify any impairment.

The table below presents a summary of intangible assets:
(in thousands)
Years ended December 31,
2018
 
2017
Gross core deposit intangible balance, beginning of year
$
20,574

 
$
9,060

Additions

 
11,514

Gross core deposit intangible, end of period
20,574

 
20,574

Accumulated amortization
(12,021
)
 
(9,518
)
Core deposit intangible, net, end of year
$
8,553

 
$
11,056



Amortization expense on the core deposit intangibles was $2.5 million, $2.6 million, and $0.9 million for the years ended December 31, 2018, 2017, and 2016, respectively. The core deposit intangibles are being amortized over a 10 year period.

The following table reflects the expected amortization schedule for the core deposit intangible (in thousands) at December 31, 2018.
Year
Core Deposit Intangible
2019
$
2,130

2020
1,755

2021
1,381

2022
1,071

2023
862

After 2023
1,354

 
$
8,553