Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Changes in Carrying Amount of Goodwill

Changes in the carrying amount of the Corporation's goodwill by business segment for the nine months ended September 30, 2015 were as follows:

(Dollars in thousands)	Banking		Wealth Management		Insurance		Consolidated
Balance at December 31, 2014	$	35,058	$	15,434	$	17,225	$	67,717
Addition to goodwill from acquisitions	43,516		—		1,424		44,940
Balance at September 30, 2015	$	78,574	$	15,434	$	18,649	$	112,657

Components of Intangible Assets

The following table reflects the components of intangible assets at the dates indicated:

	At September 30, 2015						At December 31, 2014
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization and Fair Value Adjustments		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization and Fair Value Adjustments		Net Carrying Amount
Amortized intangible assets:
Core deposit intangibles	$	1,520	$	207	$	1,313	$	—	$	—	$	—
Customer related intangibles	14,227		8,244		5,983		13,397		6,726		6,671
Mortgage servicing rights	11,805		6,033		5,772		10,559		5,050		5,509
Total amortized intangible assets	$	27,552	$	14,484	$	13,068	$	23,956	$	11,776	$	12,180

Estimated Aggregate Amortization Expense

The estimated amortization expense of mortgage servicing rights for the remainder of 2015 and the succeeding fiscal years is as follows:

Year	(Dollars in thousands)	Amount
Remainder of 2015		$	229
2016		885
2017		761
2018		649
2019		550
Thereafter		2,698

The estimated aggregate amortization expense for core deposit and customer related intangibles for the remainder of 2015 and the succeeding fiscal years is as follows:

Year	(Dollars in thousands)	Amount
Remainder of 2015		$	553
2016		1,871
2017		1,544
2018		1,170
2019		847
Thereafter		1,311

Changes in Mortgage Servicing Rights

Changes in the mortgage servicing rights balance are summarized as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
(Dollars in thousands)	2015			2014			2015			2014
Beginning of period	$	5,696		$	5,378		$	5,509		$	5,519
Servicing rights capitalized	365			365			1,246			724
Amortization of servicing rights	(289		)	(561		)	(983		)	(1,068		)
Changes in valuation allowance	—			243			—			250
End of period	$	5,772		$	5,425		$	5,772		$	5,425
Mortgage loans serviced for others	$	848,160		$	779,701		$	848,160		$	779,701

Activity in Valuation Allowance for Mortgage Servicing Rights

Activity in the valuation allowance for mortgage servicing rights was as follows:

	Three Months Ended September 30,					Nine Months Ended September 30,
(Dollars in thousands)	2015		2014			2015		2014
Valuation allowance, beginning of period	$	—	$	(243	)	$	—	$	(250	)
Additions	—		—			—		—
Reductions	—		243			—		250
Direct write-downs	—		—			—		—
Valuation allowance, end of period	$	—	$	—		$	—	$	—