Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2022

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 March 31, 2022 and December 31, 2021, and the carrying amount of unamortized intangible assets as of those same dates.

	March 31, 2022			December 31, 2021
($ in thousands)	Gross Carrying Amount		Accumulated Amortization	Gross Carrying Amount	Accumulated Amortization
Amortizable intangible assets:
Customer lists	$	2,700	1,501	2,700	1,386
Core deposit intangibles	29,050		18,972	29,050	18,076
SBA servicing assets	12,677		7,086	11,932	6,460
Other	100		40	100	33
Total	$	44,527	27,599	43,782	25,955
Unamortizable intangible assets:
Goodwill	$	364,263		364,263

Schedule of the Estimated Amortization Expense

The following table presents the estimated amortization expense schedule related to acquisition-related amortizable intangible assets. 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 amortized intangible assets.

($ in thousands)	Estimated Amortization Expense
April 1, 2022 to December 31, 2022	$	2,666
2023	2,545
2024	1,718
2025	1,358
2026	962
Thereafter	2,088
Total	$	11,337