Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2018

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, or as determined by the Chicago Mercantile Exchange (“CME”) for centrally cleared derivative contracts. CME rules legally characterize variation margin payments for centrally cleared derivatives as settlements of the derivatives' exposure rather than collateral. As a result, the variation margin payment and the related derivative instruments are considered a single unit of account for accounting and financial reporting purposes. Variation margin, as determined by the CME, is settled daily. As a result, derivative contracts that clear through the CME have an estimated fair value of zero as of September 30, 2018 and December 31, 2017.

	September 30, 2018					December 31, 2017
	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	$	11,284	$	314		$	13,679	$	242
Loan/lease interest rate swaps – liabilities	4,226		(201		)	11,147		(593		)
Non-hedging interest rate derivatives:
Financial institution counterparties:
Loan/lease interest rate swaps – assets	780,531		6,179			430,449		1,418
Loan/lease interest rate swaps – liabilities	341,987		(5,133		)	541,496		(12,820		)
Loan/lease interest rate caps – assets	102,487		920			114,619		480
Customer counterparties:
Loan/lease interest rate swaps – assets	341,987		7,017			541,496		17,882
Loan/lease interest rate swaps – liabilities	780,531		(20,613		)	430,449		(4,861		)
Loan/lease interest rate caps – liabilities	102,487		(920		)	114,619		(480		)

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 September 30, 2018 were as follows:

	Weighted-Average
	Interest Rate Paid		Interest Rate Received
Interest rate swaps:
Fair value hedge loan/lease interest rate swaps	2.45	%	2.16	%
Non-hedging interest rate swaps – financial institution counterparties	4.09	%	3.73	%
Non-hedging interest rate swaps – customer counterparties	3.73	%	4.09	%

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.

		September 30, 2018				December 31, 2017
	Notional Units	Notional Amount	Estimated Fair Value			Notional Amount	Estimated Fair Value
Financial institution counterparties:
Oil – assets	Barrels	622	$	917		253	$	193
Oil – liabilities	Barrels	2,889	(34,941		)	2,731	(13,448		)
Natural gas – assets	MMBTUs	7,939	427			5,927	1,399
Natural gas – liabilities	MMBTUs	8,382	(598		)	3,917	(326		)
Customer counterparties:
Oil – assets	Barrels	2,889	35,083			2,731	13,709
Oil – liabilities	Barrels	622	(917		)	253	(187		)
Natural gas – assets	MMBTUs	9,588	682			3,917	340
Natural gas – liabilities	MMBTUs	6,734	(392		)	5,927	(1,366		)

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:

		September 30, 2018				December 31, 2017
	Notional Currency	Notional Amount	Estimated Fair Value			Notional Amount	Estimated Fair Value
Financial institution counterparties:
Forward contracts – assets	EUR	1,097	$	9		4,014	$	77
Forward contracts – assets	GBP	793	9			127	1
Forward contracts – liabilities	EUR	—	—			4,846	(37		)
Forward contracts – liabilities	CAD	22,971	(189		)	25,413	(142		)
Forward contracts – liabilities	GBP	—	—			1,178	(9		)
Forward contracts – liabilities	AUD	54	—			—	—
Customer counterparties:
Forward contracts – assets	EUR	—	—			3,867	58
Forward contracts – assets	CAD	22,918	245			25,282	279
Forward contracts – liabilities	EUR	—	—			4,041	(51		)
Forward contracts – liabilities	GBP	—	—			127	—

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   September 30,					Nine Months Ended   September 30,
	2018		2017			2018			2017
Commercial loan/lease interest rate swaps:
Amount of gain (loss) included in interest income on loans	$	12	$	(149	)	$	1		$	(592	)
Amount of (gain) loss included in other non-interest expense	—		(2		)	(1		)	(5		)

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   September 30,				Nine Months Ended   September 30,
	2018		2017		2018			2017
Non-hedging interest rate derivatives:
Other non-interest income	$	699	$	1,085	$	2,889		$	2,062
Other non-interest expense	2		—		(2		)	1
Non-hedging commodity derivatives:
Other non-interest income	456		231		492			387
Non-hedging foreign currency derivatives:
Other non-interest income	53		83		203			101