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Goodwill and Other Amortizing Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill Disclosure [Abstract] |
Summarized Other Intangible Assets | The following table summarizes other intangible assets:
| Gross Intangible Assets |  | Accumulated Amortization |  | Net Intangible Assets
| (dollars in thousands)
December 31, 2020 |  |  |  |  |
Customer deposit intangibles | $ | 22,573 |  |  | $ | (11,653) |  |  | $ | 10,920 |
Customer list intangible | 2,283 |  |  | (1,570) |  |  | 713 |
Total other intangible assets | $ | 24,856 |  |  | $ | (13,223) |  |  | $ | 11,633 |
December 31, 2019 |  |  |  |  |
Customer deposit intangibles | $ | 25,843 |  |  | $ | (11,760) |  |  | $ | 14,083 |
Customer list intangible | 2,283 |  |  | (1,340) |  |  | 943 |
Total other intangible assets | $ | 28,126 |  |  | $ | (13,100) |  |  | $ | 15,026 |
Estimated Amortization Expense of Core Deposit Intangibles | The following presents the estimated amortization expense of core deposit and customer list intangibles:
| Core Deposit Intangibles | Customer List Intangible | Total
| (dollars in thousands)
2021 | $ | 2,753 |  | $ | 193 |  | $ | 2,946 |
2022 | 2,343 |  | 159 |  | 2,502 |
2023 | 1,933 |  | 127 |  | 2,060 |
2024 | 1,522 |  | 97 |  | 1,619 |
2025 | 1,112 |  | 69 |  | 1,181 |
Thereafter | 1,257 |  | 68 |  | 1,325 |
Total | $ | 10,920 |  | $ | 713 |  | $ | 11,633 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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://fasb.org/us-gaap/role/ref/legacyRef -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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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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