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INTANGIBLE ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Information Concerning Intangible Assets with Finite Life | Information concerning intangible assets with a finite life is presented in the following table (dollars in thousands):
| Gross Carrying Value |  | Accumulated Amortization |  | Net Carrying Value
December 31, 2018 |  |  |  |  |  |  |  |
Amortizable core deposit intangibles | $ | 95,152 |  |  | $ | 57,293 |  |  | $ | 37,859 |
Other amortizable intangibles | 12,695 |  |  | 1,870 |  |  | 10,825 |
December 31, 2017 |  |  |  |  |  |  |  |
Amortizable core deposit intangibles | $ | 56,046 |  |  | $ | 45,193 |  |  | $ | 10,853 |
Other amortizable intangibles | 4,715 |  |  | 765 |  |  | 3,950 |
Estimated Remaining Amortization Expense of Intangibles | As of December 31, 2018, the estimated remaining amortization expense of intangibles for the years ended is as follows (dollars in thousands):
2019 | $ | 11,092 |
2020 | 9,228 |
2021 | 7,438 |
2022 | 5,864 |
2023 | 4,871 |
Thereafter | 10,192 |
Total estimated amortization expense | $ | 48,685 |

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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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