Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Notional Amounts and Fair Value of Derivatives Designated as Hedging Instruments

The following table presents the notional amounts and fair values of derivatives designated as hedging instruments recorded on the consolidated balance sheets at December 31, 2017 and 2016. The Corporation pledges cash or securities to cover the negative fair value of derivative instruments. Cash collateral associated with derivative instruments are not added to or netted against the fair value amounts.

			Derivative Assets			Derivative Liabilities
(Dollars in thousands)	Notional Amount		Balance Sheet Classification	Fair Value		Balance Sheet Classification	Fair Value
At December 31, 2017
Interest rate swap - cash flow hedge	$	17,836		$	13		$	—
Interest rate swap - fair value hedge	1,388			—		Other liabilities	12
Total	$	19,224		$	13		$	12
At December 31, 2016
Interest rate swap - cash flow hedge	$	18,566		$	—	Other liabilities	$	217
Interest rate swap - fair value hedge	1,427			—		Other liabilities	37
Total	$	19,993		$	—		$	254

Notional Amounts and Fair Values of Derivatives Not Designated as Hedging Instruments

The following table presents the notional amounts and fair values of derivatives not designated as hedging instruments recorded on the consolidated balance sheets at December 31, 2017 and 2016:

			Derivative Assets			Derivative Liabilities
(Dollars in thousands)	Notional Amount		Balance Sheet Classification	Fair Value		Balance Sheet Classification	Fair Value
At December 31, 2017
Interest rate swap	$	523		$	—	Other liabilities	$	38
Credit derivatives	75,622			—		Other liabilities	36
Interest rate locks with customers	27,411		Other assets	527			—
Forward loan sale commitments	29,037		Other assets	61			—
Total	$	132,593		$	588		$	74
At December 31, 2016
Interest rate swap	$	622		$	—	Other liabilities	$	65
Credit derivatives	27,919			—		Other liabilities	9
Interest rate locks with customers	36,541		Other assets	801			—
Forward loan sale commitments	42,366		Other assets	257			—
Total	$	107,448		$	1,058		$	74

Income for Derivatives Designated as Hedging Instruments

The following table presents amounts included in the consolidated statements of income for derivatives designated as hedging instruments for the periods indicated:

	Statement of Income Classification	For the Years Ended December 31,
(Dollars in thousands)		2017			2016			2015
Interest rate swap—cash flow hedge—net interest payments	Interest expense	$	182		$	308		$	377
Interest rate swap—fair value hedge—ineffectiveness	Other noninterest income	7			9			—
Net loss		$	(175	)	$	(299	)	$	(377	)

Income for Derivatives Not Designated as Hedging Instruments

The following table presents amounts included in the consolidated statements of income for derivatives not designated as hedging instruments for the periods indicated:

	Statement of Income Classification	For the Years Ended December 31,
(Dollars in thousands)		2017			2016			2015
Credit derivatives	Other noninterest income	$	403		$	93		$	—
Interest rate locks with customers	Net gain (loss) on mortgage banking activities	(274		)	(288		)	301
Forward loan sale commitments	Net gain (loss) on mortgage banking activities	(196		)	359			10
Total		$	(67	)	$	164		$	311

Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)

The following table presents amounts included in accumulated other comprehensive (loss) income for derivatives designated as hedging instruments at December 31, 2017 and 2016:     

	Accumulated Other Comprehensive (Loss) Income	At December 31,
(Dollars in thousands)		2017		2016
Interest rate swap—cash flow hedge	Fair value, net of taxes	$	9	$	(141	)
Total		$	9	$	(141	)