Goodwill and Other Intangible Assets

9 Months Ended

Sep. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

(In Thousands)

The carrying amounts of goodwill by operating segments for the nine months ended September 30, 2019 were as follows:



	Community Banks		Insurance		Total
Balance at January 1, 2019	$	930,161	$	2,767	$	932,928
Measurement period adjustment to goodwill from Brand acquisition	6,755		—		6,755
Balance at September 30, 2019	$	936,916	$	2,767	$	939,683

The addition to goodwill from the Brand acquisition is due to changes in estimated values of assets acquired and liabilities assumed in the Brand acquisition. This addition is primarily related to measurement period adjustments on the fair value of loans, debt and other assets. The purchase accounting related to the Brand acquisition is now final.

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, 2019
Core deposit intangibles	$	82,492	$	(44,694	)	$	37,798
Customer relationship intangible	1,970		(1,061		)	909
Total finite-lived intangible assets	$	84,462	$	(45,755	)	$	38,707
December 31, 2018
Core deposit intangibles	$	82,492	$	(38,634	)	$	43,858
Customer relationship intangible	1,970		(963		)	1,007
Total finite-lived intangible assets	$	84,462	$	(39,597	)	$	44,865

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,
	2019		2018		2019		2018
Amortization expense for:
Core deposit intangibles	$	1,963	$	1,732	$	6,060	$	4,911
Customer relationship intangible	33		33		99		99
Total intangible amortization	$	1,996	$	1,765	$	6,159	$	5,010

The estimated amortization expense of finite-lived intangible assets for the year ending December 31, 2019 and the succeeding four years is summarized as follows:



	Core Deposit Intangibles		Customer Relationship Intangible		Total

2019	$	7,965	$	131	$	8,096
2020	6,939		131		7,070
2021	5,860		131		5,991
2022	4,940		131		5,071
2023	4,044		131		4,175