Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill

Changes in the carrying amount of goodwill during the years ended December 31, 2022 were as follows:

	Community Banks		Insurance		Total
Balance at December 31, 2020	$	936,916	$	2,767	$	939,683
Additions to goodwill and other adjustments	—		—		—
Balance at December 31, 2021	$	936,916	$	2,767	$	939,683
Additions to goodwill from the Southeastern Commercial Finance, LLC acquisition	6,608		—		6,608
Additions to goodwill from the Continental Republic Capital, LLC acquisition	45,417		—		45,417
Balance at December 31, 2022	$	988,941	$	2,767	$	991,708

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
December 31, 2022
Core deposit intangible	$	82,492	$	(64,339)	$	18,153
Customer relationship intangible	7,670		(1,647)		6,023
Total finite-lived intangible assets	$	90,162	$	(65,986)	$	24,176
December 31, 2021
Core deposit intangible	$	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

Estimated amortization expense of finite-lived intangible assets

The estimated amortization expense of finite-lived intangible assets for the five succeeding fiscal years is summarized as follows:

	Core Deposit Intangible		Customer Relationship Intangible		Total
2023	$	4,042	$	1,336	$	5,378
2024	3,498		1,192		4,690
2025	3,102		1,048		4,150
2026	2,899		860		3,759
2027	2,775		628		3,403