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GOODWILL AND OTHER INTANGIBLE ASSETS, NET
9 Months Ended
Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND OTHER INTANGIBLE ASSETS, NET GOODWILL AND OTHER INTANGIBLE ASSETS, NET
At September 30, 2020 and December 31, 2019, we had goodwill of $37.1 million. We evaluate goodwill impairment as of August 31st each year, and more frequently if events or circumstances indicate that there may be impairment. We completed our most recent annual goodwill impairment test as of August 31, 2020 and determined that no goodwill impairment existed.
Core deposit intangibles are amortized over their useful lives ranging from four to ten years. As of September 30, 2020, the weighted average remaining amortization period for core deposit intangibles was approximately 4.1 years.
($ in thousands)Gross Carrying ValueAccumulated AmortizationNet Carrying Value
September 30, 2020
Core deposit intangibles$30,904 $27,965 $2,939 
December 31, 2019
Core deposit intangibles$30,904 $26,753 $4,151 

Aggregate amortization of intangible assets was $353 thousand and $500 thousand for the three months ended September 30, 2020 and 2019 and $1.2 million and $1.7 million for the nine months ended September 30, 2020 and 2019. The following table presents estimated future amortization expenses as of September 30, 2020:
($ in thousands)Remainder of 20202021202220232024Total
Estimated future amortization expense$306 $1,082 $799 $517 $235 $2,939