Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2020

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 September 30, 2020 and December 31, 2019, and the carrying amount of unamortized intangible assets as of those same dates.

	September 30, 2020			December 31, 2019
($ in thousands)	Gross Carrying Amount		Accumulated Amortization	Gross Carrying Amount	Accumulated Amortization
Amortizable intangible assets:
Customer lists	$	6,013	2,575	6,013	2,185
Core deposit intangibles	28,440		23,112	28,440	20,610
SBA servicing asset	9,268		3,624	7,776	2,393
Other	1,303		1,196	1,303	1,127
Total	$	45,024	30,507	43,532	26,315
Unamortizable intangible assets:
Goodwill	$	240,972		234,368

Schedule of the estimated amortization expense for the five succeeding fiscal years

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. income within the line item "Other service charges, commissions and fees" of the Consolidated Statements of Income.

($ in thousands)	Estimated Amortization Expense
October 1 to December 31, 2020	$	880
2021	2,927
2022	2,022
2023	1,041
2024	404
Thereafter	1,599
Total	$	8,873