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Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Summary of Notion Amounts and Fair Values of Derivative Financial Instruments
The following table presents the notional amounts and fair values of derivative financial instruments as of December 31:
20222021
Notional
Amount
Asset
(Liability)
Fair Value
Notional
Amount
Asset
(Liability)
Fair Value
(dollars in thousands)
Interest Rate Locks with Customers
Positive fair values$70,836 $182 $261,428 $2,326 
Negative fair values4,939 (51)2,549 (23)
Forward Commitments
Positive fair values  51,000 41 
Negative fair values10,000 (147)— — 
Interest Rate Derivatives with Customers
Positive fair values171,317 3,337 3,213,924 153,752 
Negative fair values3,802,480 (280,401)752,462 (4,766)
Interest Rate Derivatives with Dealer Counterparties
Positive fair values3,802,480 161,956 752,462 4,766 
Negative fair values171,317 (3,703)3,213,924 (79,889)
Interest Rate Derivatives used in Cash Flow Hedges
Positive fair values600,000 1,321 500,000 60 
Negative fair values1,000,000 (12,163)500,000 (1,432)
Foreign Exchange Contracts with Customers
Positive fair values11,123 571 7,629 229 
Negative fair values3,672 (85)3,388 (51)
Foreign Exchange Contracts with Correspondent Banks
Positive fair values4,887 101 3,656 69 
Negative fair values8,280 (499)9,364 (240)
Summary of Effect of Fair Value and Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income
The following table presents the effect of fair value and cash flow hedge accounting on AOCI for the years ended December 31, 2022 and 2021:
Amount of Gain (Loss) Recognized in OCI on Derivative Amount of Gain (Loss) Recognized in OCI Included ComponentAmount of Gain (Loss) Recognized in OCI Excluded ComponentLocation of Gain (Loss) Recognized from AOCI into IncomeAmount of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Included ComponentAmount of Gain (Loss) Reclassified from AOCI into Income Excluded Component
(in thousands)
Derivatives in Cash Flow Hedging Relationships: 
 Year Ended December 31, 2022
Interest Rate Products$(81,400)$(81,400)$ Interest Income$(7,761)$(7,761)$ 
 Year Ended December 31, 2021
Interest Rate Products(3,452)(3,452)— Interest Income2,776 2,776 — 
The following table presents the effect of fair value and cash flow hedge accounting on the income statement for the years ended December 31:
Consolidated Statements of Income Classification
20222021
Interest IncomeInterest ExpenseInterest IncomeInterest Expense
(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$(7,761)$ $2,776 $— 
Interest contracts:
Amount of gain (loss) reclassified from AOCI into income(7,761) 2,776 — 
Amount of gain or (loss) reclassified from AOCI into income as a result that a forecasted transaction is no longer probable of occurring  — — 
Amount of gain (loss) reclassified from AOCI into income - included component(7,761) 2,776 — 
Amount of gain (loss) reclassified from AOCI into income - excluded component  — — 
Summary of Fair Value Gains and Losses on Derivative Financial Instruments
The following table presents the fair value gains (losses) on derivative financial instruments for the years ended December 31:
 Consolidated Statements of Income Classification202220212020
 (dollars in thousands)
Mortgage banking derivatives(1)
Mortgage banking$(2,360)$(3,392)$4,974 
Interest rate derivativesOther expense 1,050 70 
Foreign exchange contractsOther income81 (36)12 
  Net fair value gains (losses) on derivative financial instruments$(2,279)$(2,378)$5,056 
(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:
20222021
 (dollars in thousands)
Amortized cost(1)
$7,180 $35,050 
Fair value7,264 35,768 
(1) Cost basis of mortgage loans held for sale represents the unpaid principal balance.
Offsetting Assets and Liabilities The following table presents the 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
(in thousands)
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 
2021
Interest rate derivative assets$158,578 $(8,028)$— $150,550 
Foreign exchange derivative assets with correspondent banks69 (69)— — 
Total$158,647 $(8,097)$— $150,550 
Interest rate derivative liabilities$86,087 $(6,656)$(74,359)$5,072 
Foreign exchange derivative liabilities with correspondent banks240 (69)— 171 
Total$86,327 $(6,725)$(74,359)$5,243 

(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 will be recognized as reduction to interest income when the previously forecasted hedged item affects earnings in future periods.