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GOODWILL AND OTHER INTANGIBLE ASSETS, NET
 3 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND OTHER INTANGIBLE ASSETS, NET GOODWILL AND OTHER INTANGIBLE ASSETS, NET
At March 31, 2021 and December 31, 2020, we had goodwill of $37.1 million. We evaluate goodwill impairment as of October 1st each year, and more frequently if events or circumstances indicate that there may be impairment. We completed our most recent annual goodwill impairment test as of October 1, 2020 and determined that no goodwill impairment existed.
Core deposit intangibles are amortized over their useful lives ranging from four to ten years. As of March 31, 2021, the weighted average remaining amortization period for core deposit intangibles was approximately 3.6 years.
($ in thousands)Gross Carrying ValueAccumulated AmortizationNet Carrying Value
March 31, 2021
Core deposit intangibles$30,904 $28,553 $2,351 
December 31, 2020
Core deposit intangibles$30,904 $28,271 $2,633 

Aggregate amortization of intangible assets was $282 thousand and $429 thousand for the three months ended March 31, 2021 and 2020. The following table presents estimated future amortization expenses as of March 31, 2021:
($ in thousands)Remainder of 20212022202320242025Total
Estimated future amortization expense$800 $799 $517 $235 $— $2,351