Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Carrying amounts of goodwill by operating segments

The carrying amounts of goodwill by operating segments for the six months ended June 30, 2022 were as follows:

	Community Banks		Insurance		Total
Balance at January 1, 2022	$	936,916	$	2,767	$	939,683
Additions to goodwill from the Southeastern Commercial Finance, LLC acquisition	6,608		—		6,608
Balance at June 30, 2022	$	943,524	$	2,767	$	946,291

Summary of finite-lived intangible assets

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

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
June 30, 2022
Core deposit intangibles	$	82,492	$	(61,984)	$	20,508
Customer relationship intangible	2,470		(1,556)		914
Total finite-lived intangible assets	$	84,962	$	(63,540)	$	21,422
December 31, 2021
Core deposit intangibles	$	82,492	$	(59,399)	$	23,093
Customer relationship intangible	2,470		(1,465)		1,005
Total finite-lived intangible assets	$	84,962	$	(60,864)	$	24,098

Current year amortization expense for finite-lived intangible assets

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

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
Amortization expense for:
Core deposit intangibles	$	1,264	$	1,494	$	2,585	$	3,046
Customer relationship intangible	46		45		91		91
Total intangible amortization	$	1,310	$	1,539	$	2,676	$	3,137

Estimated amortization expense of finite-lived intangible assets

The estimated amortization expense of finite-lived intangible assets for the year ending December 31, 2022 and the succeeding four years is summarized as follows:

	Core Deposit Intangibles		Customer Relationship Intangible		Total
2022	$	4,941	$	181	$	5,122
2023	4,044		181		4,225
2024	3,498		181		3,679
2025	3,102		181		3,283
2026	2,899		138		3,037