Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2015

Goodwill And Other Intangible Assets [Abstract]

Summary of the gross carrying amount and accumulated amortization of amortizable intangible assets and the carrying amount of unamortized intangible assets

	September 30, 2015				December 31, 2014				September 30, 2014
($ in thousands)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortizable intangible assets:
Customer lists	$	678		539		678		505		678		495
Core deposit premiums		8,560		7,183		8,560		6,675		8,560		6,491
Total	$	9,238		7,722		9,238		7,180		9,238		6,986
Unamortizable intangible assets:
Goodwill	$	65,835				65,835				65,835

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

($ in thousands)	Estimated Amortization Expense
October 1 to December 31, 2015	$	180
2016		654
2017		404
2018		129
2019		122
Thereafter		27
Total	$	1,516