Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2013

Derivative Instruments And Hedging Activities Disclosure [Abstract]

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.

	June 30, 2013					December 31, 2012
	Notional Amount		Estimated Fair Value			Notional Amount		Estimated Fair Value
Derivatives designated as hedges of fair value:
Financial institution counterparties:
Loan/lease interest rate swaps – assets	$	52,235	$	1,214		$	14,748	$	24
Loan/lease interest rate swaps – liabilities		55,405		(5,091	)		84,577		(7,186	)
Derivatives designated as hedges of cash flows:
Financial institution counterparties:
Interest rate swap on junior subordinated deferrable interest debentures		120,000		(2,201	)		120,000		(4,365	)
Non-hedging interest rate derivatives:
Financial institution counterparties:
Loan/lease interest rate swaps – assets		212,361		6,610			—		—
Loan/lease interest rate swaps – liabilities		542,431		(40,051	)		797,311		(60,994	)
Loan/lease interest-rate caps – assets		53,058		1,122			30,000		12
Customer counterparties:
Loan/lease interest rate swaps – assets		542,431		39,967			797,311		60,854
Loan/lease interest rate swaps – liabilities		212,361		(6,610	)		—		—
Loan/lease interest-rate caps – liabilities		53,058		(1,122	)		30,000		(12	)

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 June 30, 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	%		0.19	%
Cash flow hedge interest rate swaps on junior subordinated deferrable interest debentures		5.47			1.82
Non-hedging interest rate swaps – financial institution counterparties		4.48			1.81
Non-hedging interest rate swaps – customer counterparties		1.81			4.48

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.

			June 30, 2013					December 31, 2012
	Notional		Notional		Estimated			Notional		Estimated
	Units		Amount		Fair Value			Amount		Fair Value
Financial institution counterparties:
Oil – assets		Barrels		673	$	1,389			464	$	2,188
Oil – liabilities		Barrels		607		(965	)		402		(1,590	)
Natural gas – assets		MMBTUs		10,600		3,435			120		19
Natural gas – liabilities		MMBTUs		5,470		(829	)		120		(24	)
Customer counterparties:
Oil – assets		Barrels		387		595			402		1,636
Oil – liabilities		Barrels		567		(1,309	)		464		(2,139	)
Natural gas – assets		MMBTUs		5,796		1,236			120		24
Natural gas – liabilities		MMBTUs		10,600		(3,330	)		120		(19	)

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:

			June 30, 2013					December 31, 2012
	Notional		Notional		Estimated			Notional		Estimated
	Currency		Amount		Fair Value			Amount		Fair Value
Financial institution counterparties:
Forward contracts – assets		EUR		1,077	$	2			1,093	$	3
Forward contracts – assets		CAD		19,573		588			—		—
Customer counterparties:
Forward contracts – liabilities		CAD		19,552		(567	)		—		—

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 June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Commercial loan/lease interest rate swaps:
Amount of gain (loss) included in interest income on loans	$	(609	)	$	(648	)	$	(1,232	)	$	(1,315	)
Amount of (gain) loss included in other non-interest expense		(9	)		5			6			17

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 June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Interest rate swaps/caps/floors on variable-rate loans:
Amount reclassified from accumulated other comprehensive income to interest income on loans	$	9,345		$	9,345		$	18,690		$	18,690
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		1,103			1,044			2,188			2,077
Amount of gain (loss) recognized in other comprehensive income		(33	)		(64	)		(33	)		(491	)

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 June 30,					Six Months Ended June 30,
	2013			2012		2013			2012
Non-hedging interest rate derivatives:
Other non-interest income	$	67		$	197	$	185		$	979
Other non-interest expense		(37	)		10		(55	)		(37	)
Non-hedging commodity derivatives:
Other non-interest income		89			27		256			64
Non-hedging foreign currency derivatives:
Other non-interest income		21			5		73			5