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Intangible Assets (Tables)

6 Months Ended

Jun. 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 June 30, 2018
Core deposit intangibles		$	25,906			$	(9,769	)		$	16,137
Customer relationship intangibles			5,699				(3,941	)			1,758
Mortgage servicing intangibles			413				(296	)			117
Total		$	32,018			$	(14,006	)		$	18,012
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)
Six month ended June 30, 2018
Balance at beginning of period		$	8,078			$	40,050			$	5,464			$	450			$	54,042
Acquisitions			5,689				20,002				—				—				25,691
Balance at end of period		$	13,767			$	60,052			$	5,464			$	450			$	79,733