Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Value of Derivatives by Balance Sheet Location

The following table presents the fair values of derivative instruments in the Corporation’s Consolidated Balance Sheets as of the dates indicated.

(Dollars in thousands)	Asset Derivatives					Liability Derivatives
		Fair Value					Fair Value
	Balance Sheet Location	Dec 31 2012		Dec 31 2011		Balance Sheet Location	Dec 31 2012		Dec 31 2011
Derivatives Designated as Cash Flow Hedging Instruments:
Interest rate risk management contract:
Interest rate swap contracts			$—		$—	Other liabilities		$1,619		$1,802
Derivatives not Designated as Hedging Instruments:
Forward loan commitments:
Commitments to originate fixed rate mortgage loans to be sold	Other assets	2,513		1,864		Other liabilities	—		—
Commitments to sell fixed rate mortgage loans	Other assets	—		—		Other liabilities	4,191		2,580
Customer related derivative contracts:
Interest rate swaps with customers	Other assets	3,851		4,513			—		—
Mirror swaps with counterparties		—		—		Other liabilities	3,952		4,669
Total			$6,364		$6,377			$9,762		$9,051

Derivative Instruments Effect in Statements of Income and Changes in Shareholders' Equity

The following tables present the effect of derivative instruments in the Corporations’ consolidated financial statements for the periods indicated.

(Dollars in thousands)	Gain (Loss) Recognized in Other Comprehensive Income (Effective Portion)								Location of Gain (Loss) Recognized in Income on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Gain (Loss) Recognized in Income on Derivative (Ineffective Portion)
Years ended December 31,	2012		2011			2010				2012		2011		2010
Derivatives in Cash Flow Hedging Relationships:
Interest rate risk management contracts:
Interest rate swap contracts		$121		($456	)		($663	)	Interest Expense		$—		$—		($78	)
Total		$121		($456	)		($663	)			$—		$—		($78	)

(Dollars in thousands)	Location of Gain (Loss) Recognized in Income on Derivative	Amount of Gain (Loss) Recognized in Income on Derivative
Years ended December 31,		2012			2011			2010
Derivatives not designated as hedging instruments:
Forward loan commitments:
Commitments to originate fixed rate mortgage loans to be sold	Net gains on loan sales & commissions on loans originated for others		$649			$1,968			$54
Commitments to sell fixed rate mortgage loans	Net gains on loan sales & commissions on loans originated for others	(1,611		)	(3,119		)	228
Customer related derivative contracts:
Interest rate swaps with customers	Net (losses) gains on interest rate swaps	1,147			2,658			3,785
Mirror swaps with counterparties	Net (losses) gains on interest rate swaps	(892		)	(2,652		)	(3,822		)
Total			($707	)		($1,145	)		$245