Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

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

	December 31, 2019					December 31, 2018
	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	$	2,545	$	6		$	10,941	$	207
Loan/lease interest rate swaps - liabilities	6,000		(138		)	3,885		(199		)
Non-hedging interest rate derivatives:
Financial institution counterparties:
Loan/lease interest rate swaps - assets	122,788		67			496,887		2,384
Loan/lease interest rate swaps - liabilities	1,002,860		(19,483		)	691,143		(8,921		)
Loan/lease interest rate caps - assets	107,835		266			122,791		509
Customer counterparties:
Loan/lease interest rate swaps - assets	1,002,860		43,857			691,143		16,706
Loan/lease interest rate swaps - liabilities	122,788		(310		)	496,887		(8,891		)
Loan/lease interest rate caps - liabilities	107,835		(266		)	122,791		(509		)

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 December 31, 2019 were as follows:

	Weighted-Average
	Interest Rate Paid		Interest Rate Received
Interest rate swaps:
Fair value hedge loan/lease interest rate swaps	2.66	%	1.75	%
Non-hedging interest rate swaps - financial institution counterparties	4.12		3.45
Non-hedging interest rate swaps - customer counterparties	3.45		4.12

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.

		December 31, 2019				December 31, 2018
	Notional Units	Notional Amount	Estimated Fair Value			Notional Amount	Estimated Fair Value
Financial institution counterparties:
Oil - assets	Barrels	1,214	$	2,796		2,416	$	24,332
Oil - liabilities	Barrels	2,148	(6,916		)	415	(646		)
Natural gas - assets	MMBTUs	8,295	2,131			5,745	417
Natural gas - liabilities	MMBTUs	2,689	(70		)	9,314	(1,272		)
Customer counterparties:
Oil - assets	Barrels	2,172	7,208			415	646
Oil - liabilities	Barrels	1,190	(2,652		)	2,416	(24,009		)
Natural gas - assets	MMBTUs	2,689	83			10,236	1,373
Natural gas - liabilities	MMBTUs	8,295	(2,039		)	4,823	(393		)

Schedule of Foreign Exchange Contracts, Statement of Financial Position

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

		December 31, 2019				December 31, 2018
	Notional Currency	Notional Amount	Estimated Fair Value			Notional Amount	Estimated Fair Value
Financial institution counterparties:
Forward contracts - liabilities	CAD	4,593	$	(33	)	11,003	$	(13	)
Forward contracts - liabilities	GBP	—	—			142	(2		)
Forward contracts - liabilities	MXN	—	—			3,015	(132		)
Customer counterparties:
Forward contracts - assets	CAD	4,583	45			10,979	40
Forward contracts - assets	GBP	—	—			145	4
Forward contracts - assets	MXN	—	—			3,000	149

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:

	2019		2018			2017
Commercial loan/lease interest rate swaps:
Amount of gain (loss) included in interest income on loans	$	86	$	25		$	(726	)
Amount of (gain) loss included in other non-interest expense	—		(1		)	(14		)

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, foreign currency and other derivative instruments are presented in the table below.

	2019			2018		2017
Non-hedging interest rate derivatives:
Other non-interest income	$	2,005		$	4,112	$	3,123
Other non-interest expense	(1		)	—		1
Non-hedging commodity derivatives:
Other non-interest income	503			795		440
Non-hedging foreign currency derivatives:
Other non-interest income	51			246		300
Non-hedging other derivatives:
Other non-interest income	750			—		—