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Goodwill and Other Intangible Assets | 6 Months Ended
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Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets | Goodwill and Other Intangible Assets Goodwill and other intangible assets are presented in the table below. As of June 30, 2020, we evaluated recent potential triggering events that might be indicators that our goodwill was impaired. The events include the economic disruption and uncertainty surrounding the COVID-19 pandemic and the circumstances surrounding recent volatility in the market price of crude oil. Based on our evaluation, we concluded that our goodwill was not more than likely impaired as of that date.
| June 30, 2020 |  | December 31, 2019
Goodwill | $ | 654,952 |  |  | $ | 654,952 |
Other intangible assets: |  |  |
Core deposits | $ | 1,634 |  |  | $ | 2,043 |
Customer relationships | 349 |  |  | 438 |
| $ | 1,983 |  |  | $ | 2,481 |
The estimated aggregate future amortization expense for intangible assets remaining as of June 30, 2020 is as follows:
Remainder of 2020 | $ | 420 |
2021 | 697 |
2022 | 481 |
2023 | 282 |
2024 | 87 |
Thereafter | 16 |
| $ | 1,983 |

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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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