Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

The following is a summary of the gross carrying amount and accumulated amortization of amortizable intangible assets as of December 31, 2021 and December 31, 2020 and the carrying amount of unamortizable intangible assets as of those same dates.

	December 31, 2021			December 31, 2020
($ in thousands)	Gross Carrying Amount		Accumulated Amortization	Gross Carrying Amount	Accumulated Amortization
Amortizable intangible assets:
Customer lists	$	2,700	1,386	7,613	2,814
Core deposit intangibles	29,050		18,076	28,440	23,832
SBA servicing asset	11,932		6,460	9,976	4,188
Other	100		33	1,403	1,232
Total	$	43,782	25,955	47,432	32,066
Unamortizable intangible assets:
Goodwill	$	364,263		239,272

Changes in Carrying Amount of Goodwill

The following table presents the changes in carrying amounts of goodwill:

($ in thousands)	Total Goodwill
Balance at December 31, 2019	$	234,368
Additions from acquisition of Magnolia Financial	4,904
Balance at December 31, 2020	239,272
Additions from acquisition of Select	132,356
Reduction from disposal of First Bank Insurance Services, Inc.	(7,365)
Balance at December 31, 2021	$	364,263

Schedule of the Estimated Amortization Expense

The following table presents the estimated amortization expense schedule related to acquisition-related amortizable intangible assets for each of the five calendar years ending December 31, 2026 and the estimated amount amortizable thereafter. These amounts will be recorded as "Intangibles amortization expense" within the noninterest expense section of the Consolidated Statements of Income. These estimates are subject to change in future periods to the extent management determines it is necessary to make adjustments to the carrying value or estimated useful lives of amortizable intangible assets.

($ in thousands)	Estimated Amortization Expense
2022	$	3,684
2023	2,545
2024	1,718
2025	1,358
2026	962
Thereafter	2,088
Total	$	12,355