Derivative Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2017

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 fair values of interest rate derivative contracts are estimated utilizing internal valuation models with observable market data inputs.

	March 31, 2017					December 31, 2016
	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	$	40,942	$	368		$	41,818	$	368
Loan/lease interest rate swaps – liabilities	17,052		(1,064		)	18,812		(1,278		)
Non-hedging interest rate derivatives:
Financial institution counterparties:
Loan/lease interest rate swaps – assets	278,134		3,116			206,745		2,649
Loan/lease interest rate swaps – liabilities	635,512		(22,790		)	694,965		(25,466		)
Loan/lease interest rate caps – assets	105,845		916			85,966		575
Customer counterparties:
Loan/lease interest rate swaps – assets	640,512		22,816			694,965		25,467
Loan/lease interest rate swaps – liabilities	273,134		(3,114		)	206,745		(2,649		)
Loan/lease interest rate caps – liabilities	105,845		(916		)	85,966		(575		)

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, 2017 were as follows:

	Weighted-Average
	Interest Rate Paid		Interest Rate Received
Interest rate swaps:
Fair value hedge loan/lease interest rate swaps	2.41	%	0.92	%
Non-hedging interest rate swaps – financial institution counterparties	3.99	%	2.57	%
Non-hedging interest rate swaps – customer counterparties	2.57	%	3.99	%

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. We obtain dealer quotations and use internal valuation models with observable market data inputs to value our commodity derivative positions.

		March 31, 2017				December 31, 2016
	Notional Units	Notional Amount	Estimated Fair Value			Notional Amount	Estimated Fair Value
Financial institution counterparties:
Oil – assets	Barrels	619	$	889		227	$	206
Oil – liabilities	Barrels	402	(1,180		)	944	(4,400		)
Natural gas – assets	MMBTUs	976	73			—	—
Natural gas – liabilities	MMBTUs	1,555	(499		)	1,299	(1,357		)
Customer counterparties:
Oil – assets	Barrels	427	1,234			944	4,580
Oil – liabilities	Barrels	594	(788		)	227	(206		)
Natural gas – assets	MMBTUs	1,555	537			1,299	1,393
Natural gas – liabilities	MMBTUs	976	(70		)	—	—

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, 2017				December 31, 2016
	Notional Currency	Notional Amount	Estimated Fair Value			Notional Amount	Estimated Fair Value
Financial institution counterparties:
Forward contracts – assets	EUR	890	$	9		—	$	—
Forward contracts – assets	CAD	2,257	2			—	—
Forward contracts – liabilities	EUR	—	—			870	(9		)
Forward contracts – liabilities	CAD	—	—			2,214	(21		)
Forward contracts – liabilities	GBP	425	(5		)	419	(3		)
Customer counterparties:
Forward contracts – assets	CAD	2,249	6			2,205	29

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,
	2017			2016
Commercial loan/lease interest rate swaps:
Amount of gain (loss) included in interest income on loans	$	(245	)	$	(388	)
Amount of (gain) loss included in other non-interest expense	(1		)	—

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,
	2017			2016
Non-hedging interest rate derivatives:
Other non-interest income	$	370		$	435
Other non-interest expense	(1		)	—
Non-hedging commodity derivatives:
Other non-interest income	52			132
Non-hedging foreign currency derivatives:
Other non-interest income	9			6