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GOODWILL AND OTHER INTANGIBLE ASSETS, NET | 12 Months Ended
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Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
GOODWILL AND OTHER INTANGIBLE ASSETS, NET | GOODWILL AND OTHER INTANGIBLE ASSETS, NET At December 31, 2020 and 2019, we had goodwill of $37.1 million, which included accumulated impairment losses of $2.1 million recognized in 2017 as a result of us discontinuing our mortgage banking division. We conducted our annual impairment test as of August 31, 2020 and again as of October 1, 2020 for this transition and concluded that there was no impairment as of those dates. Core deposit intangibles are amortized over their useful lives ranging from four to ten years. As of December 31, 2020, the weighted-average remaining amortization period for core deposit intangibles was approximately 3.8 years.
($ in thousands) |  | Gross Carrying Value |  | Accumulated Amortization |  | Net Carrying Value
December 31, 2020 |  |  |  |  |  |
Core deposit intangibles |  | $ | 30,904 |  |  | $ | 28,271 |  |  | $ | 2,633 |
December 31, 2019 |  |  |  |  |  |
Core deposit intangibles |  | $ | 30,904 |  |  | $ | 26,753 |  |  | $ | 4,151 |
There was no impairment of goodwill for the years ended December 31, 2020, 2019 and 2018. Aggregate amortization of intangible assets was $1.5 million, $2.2 million and $3.0 million for the years ended December 31, 2020, 2019, and 2018. The following table presents estimated future amortization expenses as of December 31, 2020:
($ in thousands) |  | 2021 |  | 2022 |  | 2023 |  | 2024 |  | 2025 |  |  |  | Total
Estimated future amortization expense |  | $ | 1,082 |  |  | $ | 799 |  |  | $ | 517 |  |  | $ | 235 |  |  | $ | — |  |  |  |  | $ | 2,633 |

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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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