Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets

The following is a summary of intangible assets:

	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Dollars in thousands)
As of September 30, 2018
Core deposit intangibles	$	25,907	$	(10,423	)	$	15,484
Customer relationship intangibles		5,699		(4,028	)		1,671
Mortgage servicing intangibles		403		(301	)		102
Total	$	32,009	$	(14,752	)	$	17,257
As of December 31, 2017
Core deposit intangibles	$	17,447	$	(8,451	)	$	8,996
Customer relationship intangibles		5,699		(3,767	)		1,932
Mortgage servicing intangibles		439		(285	)		154
Total	$	23,585	$	(12,503	)	$	11,082

Summary of Goodwill by Business Segment

The following is a summary of goodwill by business segment:

					Other		Executive,
	Metropolitan		Community		Financial		Operations
	Banks		Banks		Services		& Support		Consolidated
	(Dollars in thousands)
Nine month ended September 30, 2018
Balance at beginning of period	$	8,078	$	39,876	$	5,464	$	624	$	54,042
Acquisitions		5,689		20,002		—		—		25,691
Balance at end of period	$	13,767	$	59,878	$	5,464	$	624	$	79,733