6. GOODWILL AND INTANGIBLE ASSETS

The Company’s intangible assets consist of core deposits, goodwill, and other intangibles arising from acquisitions. The Company has determined that core deposit intangibles have finite lives and amortizes them over their estimated useful lives. Core deposit intangibles are being amortized over the period of expected benefit, which ranges from 4 to 10 years, using an accelerated method. Other amortizable intangible assets are being amortized over the period of expected benefit, which ranges from 4 to 10 years, using various methods.

The COVID-19 pandemic has disrupted and adversely impacted the economy and created significant volatility in the financial markets. The volatility in the financial markets adversely affected the Company’s expected future cash flows, due to the lower interest rate environment and other factors, and resulted in a decline in the market price of the Company’s common stock, along with others in the financial services industry. The forecasted impact from COVID-19 was included in the Company’s annual goodwill impairment test in the second quarter of 2020, and while the fair value of the reporting unit declined from the prior test, the Company determined that there was no impairment to its goodwill or intangible assets. In the normal course of business, the Company routinely monitors the impact of the changes in the financial markets and includes these assessments in the Company’s goodwill impairment process.

Due to the uncertainties driven by COVID-19, the Company analyzed its intangible assets on a quarterly basis throughout 2020, and concluded no impairment existed as of the balance sheet date. Information concerning intangible assets with a finite life is presented in the following table (dollars in thousands):

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Amortization expense of intangibles for the years ended December 31, 2020, 2019, and 2018 totaled $16.6 million, $18.5 million, and $12.8 million, respectively. As of December 31, 2020, the estimated remaining amortization expense of intangibles for the years ended is as follows (dollars in thousands):

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