Goodwill and Other Intangible Assets

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

(In Thousands)

The carrying amounts of goodwill by operating segments for the nine months ended September 30, 2020 were as follows:

	Community Banks		Insurance		Total
Balance at January 1, 2020	$	936,916	$	2,767	$	939,683
Addition to goodwill from acquisition	—		—		—
Balance at September 30, 2020	$	936,916	$	2,767	$	939,683

The following table provides a summary of finite-lived intangible assets as of the dates presented:

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
September 30, 2020
Core deposit intangibles	$	82,492	$	(51,925)	$	30,567
Customer relationship intangible	2,470		(1,239)		1,231
Total finite-lived intangible assets	$	84,962	$	(53,164)	$	31,798
December 31, 2019
Core deposit intangibles	$	82,492	$	(46,599)	$	35,893
Customer relationship intangible	2,470		(1,103)		1,367
Total finite-lived intangible assets	$	84,962	$	(47,702)	$	37,260

Current year amortization expense for finite-lived intangible assets is presented in the table below.

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Amortization expense for:
Core deposit intangibles	$	1,688	$	1,963	$	5,326	$	6,060
Customer relationship intangible	45		33		136		99
Total intangible amortization	$	1,733	$	1,996	$	5,462	$	6,159

The estimated amortization expense of finite-lived intangible assets for the year ending December 31, 2020 and the succeeding four years is summarized as follows:

	Core Deposit Intangibles		Customer Relationship Intangible		Total
2020	$	6,939	$	181	$	7,120
2021	5,860		181		6,041
2022	4,940		181		5,121
2023	4,044		181		4,225
2024	3,498		181		3,679