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Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Summary of Notion Amounts and Fair Values of Derivative Financial Instruments
The following table presents a summary of notional amounts and fair values of derivative financial instruments as of December 31:
20232022
Notional
Amount
Asset
(Liability)
Fair Value
Notional
Amount
Asset
(Liability)
Fair Value
(dollars in thousands)
Interest Rate Locks with Customers
Positive fair values$119,558 $460 $70,836 $182 
Negative fair values1,015 (2)4,939 (51)
Forward Commitments
Positive fair values  — — 
Negative fair values42,000 (854)10,000 (147)
Interest Rate Derivatives with Customers
Positive fair values824,659 22,656 171,317 3,337 
Negative fair values3,784,236 (222,530)3,802,480 (280,401)
Interest Rate Derivatives with Dealer Counterparties(1)
Positive fair values3,784,236 128,235 3,802,480 161,956 
Negative fair values824,659 (23,023)171,317 (3,703)
Interest Rate Derivatives used in Cash Flow Hedges(1)
Positive fair values2,500,000 6,189 600,000 1,321 
Negative fair values750,000  1,000,000 (12,163)
Foreign Exchange Contracts with Customers
Positive fair values4,159 40 11,123 571 
Negative fair values13,353 (446)3,672 (85)
Foreign Exchange Contracts with Correspondent Banks
Positive fair values15,969 532 4,887 101 
Negative fair values6,112 (31)8,280 (499)
(1) Fair values are net of a valuation allowance of $366.3 thousand as of December 31, 2023 and 2022.
Summary of Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income
The following table presents the effect of cash flow hedge accounting on AOCI for the year ended December 31, 2023 and 2022:
Amount of Gain (Loss) Recognized in OCI on Derivative Amount of Gain (Loss) Recognized in OCI Included ComponentAmount of Gain (Loss) Recognized in OCI Excluded ComponentLocation of Gain (Loss) Recognized from AOCI into IncomeAmount of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Included ComponentAmount of Gain (Loss) Reclassified from AOCI into Income Excluded Component
(dollars in thousands)
Year ended December 31, 2023
Interest Rate Products$19,598 $19,598 $ Interest Income$(27,546)$(27,546)$ 
Interest Rate Products(10,550)(10,550) Interest Expense1,696 1,696  
Total $9,048 $9,048 $ $(25,850)$(25,850)$ 
Year ended December 31, 2022
Interest Rate Products$(81,400)$(81,400)$— Interest Income$(7,761)$(7,761)$— 
Total$(81,400)$(81,400)$— $(7,761)$(7,761)$— 

The following table presents the effect of fair value and cash flow hedge accounting on the income statement for the year ended December 31:
Consolidated Statements of Income Classification
20232022
Interest IncomeInterest ExpenseInterest IncomeInterest Expense
(dollars in thousands)
Total amounts of income line items presented in the consolidated statements of income in which the effects of fair value or cash flow hedges are recorded$(27,546)$1,696 $(7,761)$— 
The effects of fair value and cash flow hedging:
Amount of gain or (loss) on cash flow hedging relationships  — — 
Interest contracts:
Amount of gain (loss) reclassified from AOCI into income(27,546)1,696 (7,761)— 
Amount of gain or (loss) reclassified from AOCI into income as a result that a forecasted transaction is no longer probable of occurring  — — 
Amount of gain (loss) reclassified from AOCI into income - included component(27,546)1,696 (7,761)— 
Amount of gain (loss) reclassified from AOCI into income - excluded component  — — 
Summary of Fair Value Gains and Losses on Derivative Financial Instruments
The following table presents the fair value gains (losses) on derivative financial instruments for the years ended December 31:
 Consolidated Statements of Income Classification202320222021
 (dollars in thousands)
Mortgage banking derivatives(1)
Mortgage banking$(380)$(2,360)$(3,392)
Interest rate derivativesOther income(1,855)— 1,050 
Foreign exchange contractsOther income7 81 (36)
Net fair value gains/(losses) on derivative financial instruments$(2,228)$(2,279)$(2,378)
(1) Includes interest rate locks with customers and forward commitments.
Summary of Mortgage Loans Held for Sale
The Corporation has elected to measure mortgage loans held for sale at fair value. The following table presents a summary of mortgage loans held for sale and the impact of the fair value election on the consolidated financial statements as of December 31:
20232022
 (dollars in thousands)
Amortized Cost (1)
$14,792 $7,180 
Fair value15,158 7,264 
(1) Cost basis of mortgage loans held for sale represents the unpaid principal balance.
Offsetting Assets and Liabilities The following table presents the Corporation's financial instruments that are eligible for offset, and the effects of offsetting, on the consolidated balance sheets as of December 31:
Gross AmountsGross Amounts Not Offset
Recognized on the Consolidated
on theBalance Sheets
ConsolidatedFinancialCashNet
Balance Sheets
Instruments(1)
Collateral(2)
Amount
(dollars in thousands)
2023
Interest rate derivative assets$157,080 $(15,154)$ $141,926 
Foreign exchange derivative assets with correspondent banks532 (532)  
Total $157,612 $(15,686)$ $141,926 
Interest rate derivative liabilities$245,553 $(21,343)$(93,841)$130,369 
Foreign exchange derivative liabilities with correspondent banks31 (532) (501)
Total$245,584 $(21,875)$(93,841)$129,868 
2022
Interest rate derivative assets$166,614 $(8,071)$— $158,543 
Foreign exchange derivative assets with correspondent banks101 (101)— — 
Total$166,715 $(8,172)$— $158,543 
Interest rate derivative liabilities$296,267 $(2,771)$(127,638)$165,858 
Foreign exchange derivative liabilities with correspondent banks499 (101)— 398 
Total$296,766 $(2,872)$(127,638)$166,256 

(1) For interest rate derivative assets, amounts represent any derivative liability fair values that could be offset in the event of counterparty or customer default.
For interest rate derivative liabilities, amounts represent any derivative asset fair values that could be offset in the event of counterparty or customer default.
(2) Amounts represent cash collateral (pledged by the Corporation) or received from the counterparty on interest rate derivative transactions and foreign
exchange contracts with financial institution counterparties. Interest rate derivatives with customers are collateralized by the same collateral securing the
underlying loans to those borrowers. Cash collateral amounts are included in the table only to the extent of the net derivative fair values.

Cash Flow Hedge Terminations

In January 2023, the Corporation terminated interest rate derivatives designated as cash flow hedges with a combined notional amount of $1.0 billion. As the hedged transaction continues to be probable, the unrealized losses that have been recorded in AOCI are recognized as reduction to interest income when the previously forecasted hedged item affects earnings in future periods. During 2023, $22.1 million of these unrealized losses have been reclassified as a reduction of interest income on loans, including fees, on the consolidated statements of income.