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Derivative Financial Instruments
 3 Months Ended
Mar. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Financial Instruments Derivative Financial Instruments
The fair value of derivative positions outstanding is included in accrued interest receivable and other assets and accrued interest payable and other liabilities in the accompanying consolidated balance sheets and in the net change in each of these financial statement line items in the accompanying consolidated statements of cash flows.
Interest Rate Derivatives. We utilize interest rate swaps, caps and floors to mitigate exposure to interest rate risk and to facilitate the needs of our customers. Our objectives for utilizing these derivative instruments are described in our 2018 Form 10-K.
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 March 31, 2019 and December 31, 2018.
 
March 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
$
10,642

 
$
141

 
$
10,941

 
$
207

Loan/lease interest rate swaps – liabilities
3,538

 
(185
)
 
3,885

 
(199
)
Non-hedging interest rate derivatives:
 
 
 
 
 
 
 
Financial institution counterparties:
 
 
 
 
 
 
 
Loan/lease interest rate swaps – assets
363,454

 
1,343

 
496,887

 
2,384

Loan/lease interest rate swaps – liabilities
748,152

 
(12,868
)
 
691,143

 
(8,921
)
Loan/lease interest rate caps – assets
143,084

 
688

 
122,791

 
509

Customer counterparties:
 
 
 
 
 
 
 
Loan/lease interest rate swaps – assets
764,546

 
24,818

 
691,143

 
16,706

Loan/lease interest rate swaps – liabilities
347,060

 
(3,503
)
 
496,887

 
(8,891
)
Loan/lease interest rate caps – liabilities
143,084

 
(688
)
 
122,791

 
(509
)

The weighted-average rates paid and received for interest rate swaps outstanding at March 31, 2019 were as follows:
 
Weighted-Average
 
Interest
Rate
Paid
 
Interest
Rate
Received
Interest rate swaps:
 
 
 
Fair value hedge loan/lease interest rate swaps
2.35
%
 
2.49
%
Non-hedging interest rate swaps – financial institution counterparties
4.18
%
 
4.11
%
Non-hedging interest rate swaps – customer counterparties
4.11
%
 
4.18
%

The weighted-average strike rate for outstanding interest rate caps was 2.99% at March 31, 2019.
Commodity Derivatives. We enter into commodity swaps and option contracts that are not designated as hedging instruments primarily to accommodate the business needs of our customers. Upon the origination of a commodity swap or option contract with a customer, we simultaneously enter into an offsetting contract with a third party financial institution to mitigate the exposure to fluctuations in commodity prices.
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, 2019
 
December 31, 2018
 
Notional
Units
 
Notional
Amount
 
Estimated
Fair Value
 
Notional
Amount
 
Estimated
Fair Value
Financial institution counterparties:
 
 
 
 
 
 
 
 
 
Oil – assets
Barrels
 
1,520

 
$
5,495

 
2,416

 
$
24,332

Oil – liabilities
Barrels
 
1,546

 
(6,882
)
 
415

 
(646
)
Natural gas – assets
MMBTUs
 
4,061

 
438

 
5,745

 
417

Natural gas – liabilities
MMBTUs
 
10,630

 
(910
)
 
9,314

 
(1,272
)
Customer counterparties:
 
 
 
 
 
 
 
 
 
Oil – assets
Barrels
 
1,650

 
7,044

 
415

 
646

Oil – liabilities
Barrels
 
1,416

 
(5,377
)
 
2,416

 
(24,009
)
Natural gas – assets
MMBTUs
 
10,660

 
1,025

 
10,236

 
1,373

Natural gas – liabilities
MMBTUs
 
4,031

 
(433
)
 
4,823

 
(393
)

Foreign Currency Derivatives. We enter into foreign currency forward contracts that are not designated as hedging instruments primarily to accommodate the business needs of our customers. Upon the origination of a foreign currency denominated transaction with a customer, we simultaneously enter into an offsetting contract with a third party financial institution to negate the exposure to fluctuations in foreign currency exchange rates. We also utilize foreign currency forward contracts that are not designated as hedging instruments to mitigate the economic effect of fluctuations in foreign currency exchange rates on foreign currency holdings and certain short-term, non-U.S. dollar denominated loans. The notional amounts and fair values of open foreign currency forward contracts were as follows:
 
 
 
March 31, 2019
 
December 31, 2018
 
Notional
Currency
 
Notional
Amount
 
Estimated
Fair Value
 
Notional
Amount
 
Estimated
Fair Value
Financial institution counterparties:
 
 
 
 
 
 
 
 
 
Forward contracts – assets
GBP
 
91

 
$
—

 
—

 
$
—

Forward contracts – liabilities
CAD
 
7,451

 
(48
)
 
11,003

 
(13
)
Forward contracts – liabilities
GBP
 
—

 
—

 
142

 
(2
)
Forward contracts – liabilities
MXN
 
—

 
—

 
3,015

 
(132
)
Customer counterparties:
 
 
 
 
 
 
 
 
 
Forward contracts – assets
CAD
 
7,434

 
66

 
10,979

 
40

Forward contracts – assets
GBP
 
93

 
1

 
145

 
4

Forward contracts – assets
MXN
 
—

 
—

 
3,000

 
149


Gains, Losses and Derivative Cash Flows. For fair value hedges, the changes in the fair value of both the derivative hedging instrument and the hedged item are included in other non-interest income or other non-interest expense. The extent that such changes in fair value do not offset represents hedge ineffectiveness. Net cash flows from interest rate swaps on commercial loans/leases designated as hedging instruments in effective hedges of fair value are included in interest income on loans. For non-hedging derivative instruments, gains and losses due to changes in fair value and all cash flows are included in other non-interest income and other non-interest expense.
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,
 
2019
 
2018
Commercial loan/lease interest rate swaps:
 
 
 
Amount of gain (loss) included in interest income on loans
$
26

 
$
(42
)

As stated above, we enter into non-hedge related derivative positions primarily to accommodate the business needs of our customers. Upon the origination of a derivative contract with a customer, we simultaneously enter into an offsetting derivative contract with a third party financial institution. We recognize immediate income based upon the difference in the bid/ask spread of the underlying transactions with our customers and the third party. Because we act only as an intermediary for our customer,
subsequent changes in the fair value of the underlying derivative contracts for the most part offset each other and do not significantly impact our results of operations.
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,
 
2019
 
2018
Non-hedging interest rate derivatives:
 
 
 
Other non-interest income
$
586

 
$
1,488

Other non-interest expense
—

 
(21
)
Non-hedging commodity derivatives:
 
 
 
Other non-interest income
103

 
90

Non-hedging foreign currency derivatives:
 
 
 
Other non-interest income
17

 
59


Counterparty Credit Risk. Our credit exposure relating to interest rate swaps, commodity swaps/options and foreign currency forward contracts with bank customers was approximately $29.4 million at March 31, 2019. This credit exposure is partly mitigated as transactions with customers are generally secured by the collateral, if any, securing the underlying transaction being hedged. Our credit exposure, net of collateral pledged, relating to interest rate swaps, commodity swaps/options and foreign currency forward contracts with upstream financial institution counterparties was approximately $12.1 million at March 31, 2019. This amount was primarily related to excess collateral we posted to counterparties. Collateral levels for upstream financial institution counterparties are monitored and adjusted as necessary. See Note 9 – Balance Sheet Offsetting and Repurchase Agreements for additional information regarding our credit exposure with upstream financial institution counterparties. The aggregate fair value of securities we posted as collateral related to derivative contracts totaled $146 thousand at March 31, 2019. At such date, we also had $24.7 million in cash collateral on deposit with other financial institution counterparties.