Note 9 – Goodwill and Other Intangible Assets

The following table summarizes the Company’s goodwill intangible as of the dates indicated:


(in thousands)	December 31, 2018		Additions		Reductions		December 31, 2017
Goodwill	$	220,972	$	156,661	$	—	$	64,311

Impairment exists when a Company’s carrying value exceeds its fair value. Goodwill is evaluated for impairment annually. At September 30, 2018, the Company had positive equity and the Company elected to perform a qualitative assessment to determine if it was more likely than not that the fair value of the Company exceeded its carrying value, including goodwill. The qualitative assessment indicated that it was more likely than not that the fair value of the reporting unit exceeds its carrying value, resulting in no impairment. For each of the years in the three year period ended December 31, 2018, there were no impairment charges recognized.

The following table summarizes the Company’s core deposit intangibles (“CDI”) as of the dates indicated:


(in thousands)	December 31, 2018			Additions		Reductions/ Amortization			December 31, 2017
Core deposit intangibles	$	37,163		$	27,605	$	—		$	9,558
Accumulated amortization		(7,883	)		—		(3,499	)		(4,384	)

Core deposit intangibles, net	$	29,280			27,605	$	(3,499	)	$	5,174

The Company recorded additions to its CDI of $27,605,000 in conjunction with the FNBB acquisition on July 6, 2018, $2,046,000 in conjunction with the acquisition of three branch offices from Bank of America on March 18, 2016, $6,614,000 in conjunction with the North Valley Bancorp acquisition on October 3, 2014, and $898,000 in conjunction with the Citizens acquisition on September 23, 2011. The following table summarizes the Company’s estimated core deposit intangible amortization (dollars in thousands):


Years Ended	Estimated Core Deposit Intangible Amortization
2019	$	5,723
2020		5,723
2021		5,465
2022		4,776
2023		4,269
Thereafter		3,324