Derivative Instruments and Balance Sheet Offsetting (Tables)

12 Months Ended

Dec. 31, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule reflecting the amount and fair value of risk management derivatives and mortgage banking and customer initiated derivatives

The following table presents the notional amount and fair value of the Corporation’s derivative instruments held or issued in connection with customer-initiated and mortgage banking activities. 

	December 31,
	2017						2016
			Fair Value						Fair Value
(Dollars in thousands)	Notional Amount (1)		Gross Derivative Assets (2)		Gross Derivative Liabilities (2)		Notional Amount (1)		Gross Derivative Assets (2)		Gross Derivative Liabilities (2)
Risk management purposes:
Derivatives designated as hedging instruments:
Interest rate swaps	$	620,000	$	5,899	$	—	$	—	$	—	$	—
Total risk management purposes	620,000		5,899		—		—		—		—
Customer-initiated and mortgage banking derivatives:
Customer-initiated derivatives	1,365,119		9,376		10,139		600,598		4,406		4,141
Foreign exchange forwards(3)	—		—		—		—		—		—
Forward contracts related to mortgage loans to be delivered for sale	115,996		—		34		140,155		635		—
Interest rate lock commitments	71,003		1,222		—		76,034		956		—
Power Equity CD	38,807		2,184		2,184		36,807		2,218		2,218
Total customer-initiated and mortgage banking derivatives	1,590,925		12,782		12,357		853,594		8,215		6,359
Total gross derivatives	$	2,210,925	$	18,681	$	12,357	$	853,594	$	8,215	$	6,359

⁽¹⁾  Notional or contract amounts, which represent the extent of involvement in the derivatives market, are used to determine the contractual cash flows required in accordance with the terms of the agreement. These amounts are typically not exchanged, significantly exceed amounts subject to credit or market risk and are not reflected in the Consolidated Statements of Financial Position.

⁽²⁾  Derivative assets are included within "Interest receivable and other assets" and derivative liabilities are included within "Interest Payable and other liabilities" on the Consolidated Statements of Financial Position. Included in the fair value of the derivative assets are credit valuation adjustments for counterparty credit risk totaling $809 thousand at December 31, 2017 and $99 thousand at December 31, 2016.

⁽³⁾  The foreign exchange forwards that were entered into during the year ended December 31, 2017 had matured as of December 31, 2017.

Schedule reflecting the net gains (losses) relating to derivative instruments related to the changes in fair value

The following table presents the net gains (losses) related to derivative instruments reflecting the changes in fair value.

		For the years ended December 31,
(Dollars in thousands)	Location of Gain (Loss)	2017			2016			2015
Forward contracts related to mortgage loans to be delivered for sale	Net gain (loss) on sale of loans and other mortgage banking revenue	$	(669	)	$	692		$	193
Interest rate lock commitments	Net gain (loss) on sale of loans and other mortgage banking revenue	266			(1,356		)	(132		)
Customer-initiated derivatives	Other noninterest income	(1,028		)	581			—
Total gain (loss) recognized in income		$	(1,431	)	$	(83	)	$	61

The following table presents the net gains (losses) recorded in accumulated other comprehensive income and the Consolidated Statements of Income relating to interest rate swaps designated as cash flow hedges for the year ended December 31, 2017. The Corporation first began entering into interest rate swaps designated as cash flow hedges during the year ended December 31, 2017.

(Dollars in thousands)	Amount of gain (loss) recognized in other comprehensive income (Effective portion)		Amount of gain (loss) reclassified from other comprehensive income to interest income or expense (Effective portion)			Amount of gain (loss) recognized in other noninterest income (Ineffective portion)
Year Ended December 31, 2017
Interest rate swaps designated as cash flow hedges	$	4,263	$	(1,633	)	$	(3	)

Schedule of the Company's financial instruments eligible for offset, offsetting assets

The tables below present information about the Corporation’s financial instruments that are eligible for offset.

							Gross amounts not offset in the statements of financial position
(Dollars in thousands)	Gross amounts recognized		Gross amounts offset in the statements of financial condition		Net amounts presented in the statements of financial position		Financial instruments		Collateral (received)/posted		Net Amount
December 31, 2017
Offsetting derivative assets
Derivative assets	$	15,228	$	—	$	15,228	$	—	$	—	$	15,228
Offsetting derivative liabilities
Derivative liabilities	10,139		—		10,139		—		1,081		9,058
December 31, 2016
Offsetting derivative assets
Derivative assets	$	4,405	$	—	$	4,405	$	—	$	—	$	4,405
Offsetting derivative liabilities
Derivative liabilities	4,141		—		4,141		—		2,550		1,591

Schedule of the Company's financial instruments eligible for offset, offsetting liabilities

The tables below present information about the Corporation’s financial instruments that are eligible for offset.

							Gross amounts not offset in the statements of financial position
(Dollars in thousands)	Gross amounts recognized		Gross amounts offset in the statements of financial condition		Net amounts presented in the statements of financial position		Financial instruments		Collateral (received)/posted		Net Amount
December 31, 2017
Offsetting derivative assets
Derivative assets	$	15,228	$	—	$	15,228	$	—	$	—	$	15,228
Offsetting derivative liabilities
Derivative liabilities	10,139		—		10,139		—		1,081		9,058
December 31, 2016
Offsetting derivative assets
Derivative assets	$	4,405	$	—	$	4,405	$	—	$	—	$	4,405
Offsetting derivative liabilities
Derivative liabilities	4,141		—		4,141		—		2,550		1,591