Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2019

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 June 30, 2019, December 31, 2018, and June 30, 2018 and the carrying amount of unamortized intangible assets as of those same dates.

	June 30, 2019			December 31, 2018		June 30, 2018
($ in thousands)	Gross Carrying Amount		Accumulated Amortization	Gross Carrying Amount	Accumulated Amortization	Gross Carrying Amount	Accumulated Amortization
Amortizable intangible assets:
Customer lists	$	6,013	1,911	6,013	1,637	6,013	1,185
Core deposit intangibles	28,440		18,648	28,440	16,469	28,440	12,803
SBA servicing asset	6,956		1,674	5,472	1,053	3,348	319
Other	1,303		1,078	1,303	957	1,303	718
Total	$	42,712	23,311	41,228	20,116	39,104	15,025
Unamortizable intangible assets:
Goodwill	$	234,368		234,368		232,458

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. Additionally, as noted in the table above, the Company has a SBA servicing asset at June 30, 2019 with a remaining book value of $5,282,000. This servicing asset will be amortized over the lives of the related loans, with such amortization expense recorded as a reduction of servicing income within the line item "Other service charges, commissions and fees" of the Consolidated Statements of Income.

($ in thousands)	Estimated Amortization Expense
July 1 to December 31, 2019	$	2,284
2020	3,841
2021	2,927
2022	2,022
2023	1,041
Thereafter	2,004
Total	$	14,119