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Goodwill and Intangible Assets | 9 Months Ended
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Sep. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract] |
Goodwill and Intangible Assets | (7) Goodwill and Intangible Assets The carrying amount of goodwill has increased $49,221 since December 31, 2017 as a result of the UCB acquisition, discussed in Note 17. The balance of goodwill was $76,316 at September 30, 2018 and $27,095 at December 31, 2017. Goodwill is not amortized, however, management performs an evaluation of goodwill for impairment annually, or more frequently if events or changes in circumstances indicate that the asset might be impaired. Management last performed an evaluation of the Company’s goodwill during the fourth quarter of 2017 and concluded that the Company’s goodwill was not impaired at December 31, 2017. The increase in the gross carrying amount of core deposit intangibles relates to the UCB acquisition. Acquired intangible assets, other than goodwill, as of September 30, 2018 and December 31, 2017 were as follows:
|  | 2018 |  |  | 2017 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
Amortized intangible assets(1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
MSRs |  | $ | 2,065 |  |  | $ | 386 |  |  | $ | 1,679 |  |  | $ | 1,065 |  |  | $ | 322 |  |  | $ | 743 |
Core deposit intangibles |  |  | 14,792 |  |  |  | 6,823 |  |  |  | 7,969 |  |  |  | 7,274 |  |  |  | 6,738 |  |  |  | 536 |
Total amortized intangible assets |  | $ | 16,857 |  |  | $ | 7,209 |  |  | $ | 9,648 |  |  | $ | 8,339 |  |  | $ | 7,060 |  |  | $ | 1,279 |
(1) | Excludes fully amortized intangible assets
Aggregate core deposit intangible amortization expense was $26, $158, $85 and $483 for the three and nine-months ended September 30, 2018 and 2017, respectively. Aggregate mortgage servicing rights amortization was $22, $23, $65 and $51 for the three and nine-months ended September 30, 2018 and 2017, respectively. Estimated amortization expense for each of the next five years and thereafter is as follows:
|  | MSRs |  |  | Core deposit intangibles |  |  | Total |
2018 |  | $ | 22 |  |  | $ | 281 |  |  | $ | 303 |
2019 |  |  | 88 |  |  |  | 945 |  |  |  | 1,033 |
2020 |  |  | 88 |  |  |  | 914 |  |  |  | 1,002 |
2021 |  |  | 87 |  |  |  | 891 |  |  |  | 978 |
2022 |  |  | 87 |  |  |  | 868 |  |  |  | 955 |
Thereafter |  |  | 1,307 |  |  |  | 4,070 |  |  |  | 5,377 |
|  | $ | 1,679 |  |  | $ | 7,969 |  |  | $ | 9,648 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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