Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2016

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 three months ended March 31, 2016 were as follows:

(Dollars in thousands)	Banking		Wealth Management		Insurance		Consolidated
Balance at December 31, 2015	$	78,574	$	15,434	$	18,649	$	112,657
Addition to goodwill from acquisitions	—		—		—		—
Balance at March 31, 2016	$	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 March 31, 2016						At December 31, 2015
(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	$	339	$	1,181	$	1,520	$	276	$	1,244
Customer related intangibles	12,381		7,305		5,076		14,227		8,728		5,499
Mortgage servicing rights	12,544		6,705		5,839		12,233		6,356		5,877
Total amortized intangible assets	$	26,445	$	14,349	$	12,096	$	27,980	$	15,360	$	12,620

Estimated Aggregate Amortization Expense

The estimated amortization expense of mortgage servicing rights for the remainder of 2016 and the succeeding fiscal years is as follows:

Year	(Dollars in thousands)	Amount
Remainder of 2016		$	763
2017		900
2018		755
2019		629
2020		521
Thereafter		2,271

The estimated aggregate amortization expense for core deposit and customer related intangibles for the remainder of 2016 and the succeeding fiscal years is as follows:

Year	(Dollars in thousands)	Amount
Remainder of 2016		$	1,385
2017		1,544
2018		1,170
2019		847
2020		577
Thereafter		734

Changes in Mortgage Servicing Rights

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

	Three Months Ended March 31,
(Dollars in thousands)	2016			2015
Beginning of period	$	5,877		$	5,509
Servicing rights capitalized	311			382
Amortization of servicing rights	(349		)	(368		)
Changes in valuation allowance	—			—
End of period	$	5,839		$	5,523
Mortgage loans serviced for others	$	872,958		$	809,342