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Goodwill And Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following table presents a roll forward of the Company's goodwill activity (in thousands):
| 2017 | 2016
Beginning balance | $ | 76,196 |  | $ | 76,256 |
Adjustments to goodwill acquired in conjunction with the acquisition of AFB | — |  | (60 | )
Ending balance | $ | 76,196 |  | $ | 76,196 |
Schedule Of Core Deposit Intangibles | The Company believes that the customer relationships with the deposits acquired have an intangible value. In connection with acquisitions, the Company recorded a core deposit intangible, which represented the value that the acquiree had with their deposit customers. The fair value was estimated based on a discounted cash flow methodology that considered the type of deposit, estimated deposit retention, the cost of the deposit base and an alternate cost of funds. The following tables present the details of the Company's core deposit intangibles (in thousands):
| 2017 | 2016
Gross carrying amount | $ | 9,802 |  | $ | 9,802 |
Accumulated amortization | (7,403 | ) | (6,863 | )
| $ | 2,399 |  | $ | 2,939 |
Beginning balance | $ | 2,939 |  | $ | 3,536 |
Amortization expense | (540 | ) | (597 | )
Ending balance | $ | 2,399 |  | $ | 2,939 |
Schedule of Estimated Future Amortization Expense for Core Deposits | The estimated amortization expense for core deposit intangible assets for each of the next five years is as follows (in thousands):
2018 | $ | 506 |
2019 | 454 |
2020 | 416 |
2021 | 382 |
2022 | 296 |
Thereafter | 345 |
| $ | 2,399 |

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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