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Derivative Financial Instruments and Hedging Activities
 3 Months Ended
Mar. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Financial Instruments and Hedging Activities Derivative Financial Instruments and Hedging Activities
Our hedging policy allows the use of interest rate derivative instruments to manage our exposure to interest rate risk or hedge specified assets and liabilities. These instruments may include interest rate swaps and interest rate caps and floors. All derivative instruments are carried on the balance sheet at their estimated fair value and are recorded in other assets or other liabilities, as appropriate.
Derivative instruments may be designated as cash flow hedges of variable rate assets or liabilities, cash flow hedges of forecasted transactions, fair value hedges of a recognized asset or liability or as non-hedging instruments.
Cash Flow Hedges
Gains and losses on derivative instruments designated as cash flow hedges are recorded in AOCI to the extent they are effective. If the hedge is effective, the amount recorded in other comprehensive income is reclassified to interest expense in the same periods that the hedged cash flows impact earnings. We have entered into certain interest rate swap contracts on specific variable rate agreements and fixed rate short-term pay agreements with third-parties. These interest rate swap contracts were designated as hedging instruments in cash flow hedges under ASC Topic 815. The objective of the interest rate swap contracts is to manage the expected future cash flows on $940 billion of Bank liabilities. The cash flows from the swap contracts are expected to be highly effective in hedging the variability in future cash flows attributable to fluctuations in the underlying SOFR rate.
In accordance with ASC Topic 815, if a hedging item is terminated prior to maturity for a cash settlement, the existing gain or loss within AOCI will continue to be reclassified into earnings during the period or periods in which the hedged forecasted transaction affects earnings unless it is probable that the forecasted transaction will not occur by the end of the originally specified time period. These transactions are reevaluated on a monthly basis to determine if the hedged forecasted transactions are still probable of occurring. If at a subsequent evaluation, it is determined that the transactions are probable of not occurring, any related gains or losses recorded in AOCI are immediately recognized in earnings. During the second quarter of 2023, we terminated one interest rate swap contract designated as a cash flow hedge. At the time of termination, we determined the underlying hedged forecasted transactions were still probable of occurring. The existing loss in AOCI will be reclassified into earnings in the same periods the hedged forecasted transaction affects earnings.
Fair Value Hedges
Gains and losses on derivative instruments designated as fair value hedges, as well as the change in fair value on the hedged item, are recorded in interest income in the consolidated statements of income. Gains and losses due to changes in fair value of the interest rate swap agreements completely offset changes in the fair value of the hedged portion of the hedged item. During 2022, we entered into partial term fair value hedges, as allowed under ASU 2017-12, for certain of our fixed rate callable AFS municipal securities. The instruments are designated as fair value hedges as the changes in the fair value of the interest rate swap are expected to offset changes in the fair value of the hedged item attributable to changes in the SOFR swap rate, the designated benchmark interest rate. As of March 31, 2024, hedged securities with a carrying amount of $449.4 million are included in our AFS securities portfolio in our consolidated balance sheets. These derivative contracts involve the receipt of floating rate interest from a counterparty in exchange for us making fixed-rate payments over the life of the agreement, without the exchange of the underlying notional value. During 2023, we terminated some of our fair value hedging relationships and sold the hedged items. As a result of the sale, the cumulative adjustments to the carrying amount was a fair value net gain of $6.5 million recognized in earnings and recorded in noninterest income during the year ended December 31, 2023.
The following table presents the amounts recorded in the consolidated balance sheets related to the cumulative adjustments for fair value hedges (in thousands):
March 31, 2024December 31, 2023
Amortized cost of hedged assets - Securities AFS$485,979 $487,486 
Cumulative amount of fair value hedging adjustments included in the carrying amount of the hedged items20,422 13,642 
Derivatives Designated as Non-Hedging Instruments
From time to time, we may enter into certain interest rate swaps, cap and floor contracts that are not designated as hedging instruments. These interest rate derivative contracts relate to transactions in which we enter into an interest rate swap, cap or floor with a customer while concurrently entering into an offsetting interest rate swap, cap or floor with a third-party financial institution. We agree to pay interest to the customer on a notional amount at a variable rate and receive interest from the customer on a similar notional amount at a fixed interest rate. At the same time, we agree to pay a third-party financial institution the same fixed interest rate on the same notional amount and receive the same variable interest rate on the same notional amount. These interest rate derivative contracts allow our customers to effectively convert a variable rate loan to a
fixed rate loan. The changes in the fair value of the underlying derivative contracts primarily offset each other and do not significantly impact our results of operations. We recognized swap fee income associated with these derivative contracts immediately based upon the difference in the bid/ask spread of the underlying transactions with the customer and the third-party financial institution. The swap fee income is included in other noninterest income in our consolidated statements of income.
At March 31, 2024 and December 31, 2023, net derivative assets included $65.4 million and $46.8 million, respectively, of cash collateral received from counterparties under master netting agreements.
The notional amounts of the derivative instruments represent the contractual cash flows pertaining to the underlying agreements. These amounts are not exchanged and are not reflected in the consolidated balance sheets. The fair value of the interest rate swaps are presented at net in other assets and other liabilities and in the net change in each of these financial statement line items in the accompanying consolidated statements of cash flows when a right of offset exists, based on transactions with a single counterparty that are subject to a legally enforceable master netting agreement.
The following tables present the notional and estimated fair value amount of derivative positions outstanding (in thousands):
March 31, 2024December 31, 2023
Estimated Fair ValueEstimated Fair Value
Notional
Amount (1)
Asset DerivativeLiability Derivative
Notional
Amount (1)
Asset DerivativeLiability Derivative
Derivatives designated as hedging instruments
Interest rate contracts:
Swaps-Cash Flow Hedge-Financial institution counterparties$940,000 $26,043 $1,824 $1,010,000 $24,223 $6,910 
Swaps-Fair Value Hedge-Financial institution counterparties453,440 20,422 — 453,440 13,658 16 
Derivatives designated as non-hedging instruments
Interest rate contracts:
Swaps-Financial institution counterparties245,874 21,786 27 248,073 18,249 509 
Swaps-Customer counterparties245,874 27 21,786 248,073 509 18,249 
Gross derivatives68,278 23,637 56,639 25,684 
Offsetting derivative assets/liabilities(1,851)(1,851)(7,435)(7,435)
Cash collateral received/posted(65,360)— (46,760)— 
Net derivatives included in the consolidated balance sheets (2)
$1,067 $21,786 $2,444 $18,249 
(1)    Notional amounts, which represent the extent of involvement in the derivatives market, are used to determine the contractual cash flows required in accordance with the terms of the agreement. These amounts are typically not exchanged, significantly exceed amounts subject to credit or market risk and are not reflected in the consolidated balance sheets.
(2)    Net derivative assets are included in other assets and net derivative liabilities are included in other liabilities on the consolidated balance sheets. Included in the fair value of net derivative assets and net derivative liabilities are credit valuation adjustments reflecting counterparty credit risk and our credit risk. At March 31, 2024, we had $1.0 million credit exposure related to interest rate swaps with financial institutions and $27,000 related to interest rate swaps with customers. At December 31, 2023, we had $1.9 million credit exposure related to interest rate swaps with financial institutions and $509,000 related to interest rate swaps with customers. The credit risk associated with customer transactions is partially mitigated as these are generally secured by the non-cash collateral securing the underlying transaction being hedged.
The summarized expected weighted average remaining maturity of the notional amount of interest rate swaps and the weighted average interest rates associated with the amounts expected to be received or paid on interest rate swap agreements are
presented below (dollars in thousands). Variable rates received on fixed pay swaps are based on overnight SOFR rates in effect at March 31, 2024 and December 31, 2023:
March 31, 2024December 31, 2023
Weighted AverageWeighted Average
Notional AmountRemaining Maturity
 (in years)		Receive Rate
Pay
Rate
Notional AmountRemaining Maturity
 (in years)		Receive RatePay
Rate
Swaps-Cash Flow hedge
Financial institution counterparties$940,000 2.35.40 %2.94 %$1,010,000 2.35.44 %2.65 %
Swaps-Fair Value hedge
Financial institution counterparties453,440 5.15.34 %3.13 %453,440 5.45.37 %3.13 %
Swaps-Non-hedging
Financial institution counterparties245,874 7.25.81 %2.87 %248,073 7.45.84 %2.88 %
Customer counterparties245,874 7.22.87 %5.81 %248,073 7.42.88 %5.84 %

The following table presents amounts included in the consolidated statements of income related to interest rate swap agreements (in thousands):
 Three Months Ended March 31,
 20242023
Derivatives designated as hedging instruments
Swaps-Cash Flow hedge
Gain (loss) included in interest expense on deposits$4,111 $3,071 
Gain (loss) included in interest expense on FHLB borrowings2,531 1,901 
Gain (loss) included in interest expense on other borrowings— 136 
6,642 5,108 
Swaps-Fair Value hedge
Gain (loss) included in interest income on tax-exempt investment securities2,622 2,450 
Derivatives designated as non-hedging instruments
Swaps-Non-hedging
Other noninterest income— 160