Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Notional Amounts and Estimated Fair Values of Interest Rate Derivative Contracts Outstanding

The notional amounts and estimated fair values of interest rate derivative contracts are presented in the following table. The Corporation obtains dealer quotations to value its interest rate derivative contracts designated as hedges of cash flows, while the fair values of other interest rate derivative contracts are estimated utilizing internal valuation models with observable market data inputs.

	March 31, 2013					December 31, 2012					March 31, 2012
	Notional		Estimated			Notional		Estimated			Notional		Estimated
	Amount		Fair Value			Amount		Fair Value			Amount		Fair Value
Derivatives designated as hedges of fair value:
Financial institution counterparties:
Loan/lease interest rate swaps – assets		23,884	$	103			14,748	$	24			—	$	—
Loan/lease interest rate swaps – liabilities		84,404		(6,565	)		84,577		(7,186	)		67,517		(7,736	)
Derivatives designated as hedges of cash flows:
Financial institution counterparties:
Interest rate swap on junior subordinated deferrable interest debentures		120,000		(3,306	)		120,000		(4,365	)		120,000		(7,205	)
Non-hedging interest rate derivatives:
Financial institution counterparties:
Loan/lease interest rate swaps – assets		50,915		147			—		—			—		—
Loan/lease interest rate swaps – liabilities		741,344		(54,434	)		797,311		(60,994	)		637,356		(57,314	)
Loan/lease interest-rate caps – assets		33,058		12			30,000		12			20,000		28
Customer counterparties:
Loan/lease interest rate swaps – assets		741,344		54,312			797,311		60,854			637,356		57,105
Loan/lease interest rate swaps – liabilities		50,915		(147	)		—		—			—		—
Loan/lease interest-rate caps – liabilities		33,058		(12	)		30,000		(12	)		20,000		(28	)

Schedule of Weighted-Average Rates Paid and Received for Interest Rate Swaps Outstanding

The weighted-average rates paid and received for interest rate swaps outstanding at March 31, 2013 were as follows:

	Weighted-Average
	Interest Rate Paid			Interest Rate Received
Interest rate swaps:
Fair value hedge loan/lease interest rate swaps		2.57	%		0.20	%
Cash flow hedge interest rate swaps on junior subordinated deferrable interest debentures		5.47			1.84
Non-hedging interest rate swaps – financial institution counterparties		4.50			1.86
Non-hedging interest rate swaps – customer counterparties		1.86			4.50

Schedule of Notional Amounts and Estimated Fair Values of Commodity Derivative Positions

The notional amounts and estimated fair values of non-hedging commodity swap and option derivative positions outstanding are presented in the following table. The Corporation obtains dealer quotations and uses internal valuation models with observable market data inputs to value its commodity derivative positions.

			March 31, 2013					December 31, 2012					March 31, 2012
	Notional		Notional		Estimated			Notional		Estimated			Notional		Estimated
	Units		Amount		Fair Value			Amount		Fair Value			Amount		Fair Value
Financial institution counterparties:
Oil – assets		Barrels		574	$	1,426			464	$	2,188			1,415	$	3,928
Oil – liabilities		Barrels		1,016		(2,816	)		402		(1,590	)		1,716		(11,286	)
Natural gas – assets		MMBTUs		3,050		733			120		19			1,290		2,862
Natural gas – liabilities		MMBTUs		9,035		(1,614	)		120		(24	)		300		(40	)
Customer counterparties:
Oil – assets		Barrels		1,016		2,909			402		1,636			1,716		11,384
Oil – liabilities		Barrels		574		(1,369	)		464		(2,139	)		1,415		(3,907	)
Natural gas – assets		MMBTUs		9,995		1,691			120		24			300		40
Natural gas – liabilities		MMBTUs		2,090		(728	)		120		(19	)		1,290		(2,830	)

Notional Amounts and Fair Values of Open Foreign Currency Forward Contracts

The notional amounts and fair values of open foreign currency forward contracts were as follows:

			March 31, 2013					December 31, 2012				March 31, 2012
	Notional		Notional		Estimated			Notional		Estimated		Notional		Estimated
	Currency		Amount		Fair Value			Amount		Fair Value		Amount		Fair Value
Financial institution counterparties:
Forward contracts – assets		EUR		1,009	$	3			1,093	$	3		1,089	$	(6	)
Forward contracts – liabilities		CAD		19,432		(207	)		—		—		—		—
Customer counterparties:
Forward contracts – assets		CAD		19,380		258			—		—		—		—

Schedule of Amounts Related to Interest Rate Derivatives Designated as Hedges of Fair Value

Amounts included in the consolidated statements of income related to interest rate derivatives designated as hedges of fair value were as follows:

	Three Months Ended March 31,
	2013			2012
Commercial loan/lease interest rate swaps:
Amount of gain (loss) included in interest income on loans	$	(623	)	$	(667	)
Amount of (gain) loss included in other non-interest expense		15			12

Schedule of Amounts Related to Interest Rate Derivatives Included in Income Designated as Hedges of Cash Flows

Amounts included in the consolidated statements of income and in other comprehensive income for the period related to interest rate derivatives designated as hedges of cash flows were as follows:

	Three Months Ended March 31,
	2013		2012
Interest rate swaps on variable-rate loans:
Amount reclassified from accumulated other comprehensive income to interest income on loans	$	9,345	$	9,345
Interest rate swaps on junior subordinated deferrable interest debentures:
Amount reclassified from accumulated other comprehensive income to interest expense on junior subordinated deferrable interest debentures		1,085		1,033
Amount of gain (loss) recognized in other comprehensive income		—		(427	)

Schedule of Amounts Related to Non-Hedging Interest Rate and Commodity Derivatives

Amounts included in the consolidated statements of income related to non-hedging interest rate, commodity and foreign currency derivative instruments are presented in the table below.

	Three Months Ended March 31,
	2013			2012
Non-hedging interest rate derivatives:
Other non-interest income	$	118		$	782
Other non-interest expense		(18	)		(47	)
Non-hedging commodity derivatives:
Other non-interest income		167			37
Non-hedging foreign currency derivatives:
Other non-interest income		52			—