Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of finite-lived intangible assets

The following table presents the gross carrying value of intangible assets and accumulated amortization as of September 30, 2017 and December 31, 2016:

($ in thousands)	September 30, 2017			December 31, 2016
Gross balance	$	108,814		$	108,814
Accumulated amortization	(86,140		)	(80,825		)
Net carrying balance	$	22,674		$	27,989

Schedule of estimated future amortization expense of core deposit intangibles

The following table presents the estimated future amortization expense of core deposit intangibles:

Year Ended December 31,	Amount ($ in thousands)
Remainder of 2017	$	1,620
2018	5,883
2019	4,864
2020	3,846
2021	2,833
Thereafter	3,628
Total	$	22,674