The Corporation manages its exposure to certain interest rate and foreign currency risks through the use of derivatives. None of the Corporation's outstanding derivative contracts are designated as hedges, and none are entered into for speculative purposes. Derivative instruments are carried at fair value, with changes in fair value recognized in earnings as components of non-interest income or non-interest expense on the consolidated statements of income.

Derivative contracts create counterparty credit risk with both the Corporation's customers and with institutional derivative counterparties. The Corporation manages counterparty credit risk through its credit approval processes, monitoring procedures and obtaining adequate collateral, when the Corporation determines it is appropriate to do so and in accordance with counterparty contracts.

For each of the derivatives, gross derivative assets and liabilities are recorded in other assets and other liabilities, respectively, on the consolidated balance sheets. Related gains and losses on these derivative instruments are recorded in other changes, net on the consolidated statement of cash flows.

In connection with its mortgage banking activities, the Corporation enters into commitments to originate certain fixed-rate residential mortgage loans for customers, also referred to as interest rate locks. In addition, the Corporation enters into forward commitments for the future sales or purchases of mortgage-backed securities to or from third-party counterparties to hedge the effect of changes in interest rates on the values of both the interest rate locks and mortgage loans held for sale. Forward sales commitments may also be in the form of commitments to sell individual mortgage loans at a fixed price at a future date. The amount necessary to settle each interest rate lock is based on the price that secondary market investors would pay for loans with similar characteristics, including interest rate and term, as of the date fair value is measured.

The Corporation enters into interest rate swaps with certain qualifying commercial loan customers to meet their interest rate risk management needs. The Corporation simultaneously enters into interest rate swaps with dealer counterparties, with identical notional amounts and terms. The net result of these interest rate swaps is that the customer pays a fixed rate of interest and the Corporation receives a floating rate. The Corporation is required to clear all eligible interest rate swap contracts with a central counterparty and is subject to the regulations of the Commodity Futures Trading Commission.

The Corporation enters into foreign exchange contracts to accommodate the needs of its customers. Foreign exchange contracts are commitments to buy or sell foreign currency on a specific date at a contractual price. The Corporation limits its foreign exchange exposure with customers by entering into contracts with institutional counterparties to mitigate its foreign exchange risk. The Corporation also holds certain amounts of foreign currency with international correspondent banks ("Foreign Currency Nostro Accounts"). The Corporation limits the total overnight net foreign currency open positions, which is defined as an aggregate of all outstanding contracts and Foreign Currency Nostro Account balances, to $500,000.



	March 31, 2020						December 31, 2019
	Notional Amount			Asset (Liability) Fair Value			Notional Amount		Asset (Liability) Fair Value
	(in thousands)
Interest Rate Locks with Customers
Positive fair values	$	315,084		$	5,990		$	132,260	$	1,123
Negative fair values	4,968			(57		)	9,783		(53		)
Forward Commitments
Positive fair values	—			—			75,000		63
Negative fair values	341,680			(4,131		)	180,000		(371		)
Interest Rate Swaps with Customers
Positive fair values	3,457,081			368,172			2,903,489		143,484
Negative fair values	(12,288		)	(6		)	376,705		(695		)
Interest Rate Swaps with Dealer Counterparties
Positive fair values	12,288			6			376,705		695
Negative fair values	3,457,081			(180,576		)	2,903,489		(75,327		)
Foreign Exchange Contracts with Customers
Positive fair values	12,331			359			3,373		38
Negative fair values	2,985			(125		)	7,283		(154		)
Foreign Exchange Contracts with Correspondent Banks
Positive fair values	5,290			168			9,028		192
Negative fair values	11,393			(252		)	4,976		(45		)



	Consolidated Statements of Income Classification	Three months ended March 31
		2020		2019
		(in thousands)
Mortgage banking derivatives ⁽¹⁾	Mortgage banking	$	1,040	$	662
Interest rate swaps	Other expense	72		(149		)
Foreign exchange contracts	Other income	119		48
Net fair value gains on derivative financial instruments		$	1,231	$	561

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 the periods shown:

Although certain financial assets and liabilities may be eligible for offset on the consolidated balance sheets because they are subject to master netting arrangements or similar agreements, the Corporation elects to not offset such qualifying assets and liabilities.

The Corporation is a party to interest rate swaps with financial institution counterparties and customers. Under these agreements, the Corporation has the right to net-settle multiple contracts with the same counterparty in the event of default on, or termination of, any one contract. Cash collateral is posted by the party with a net liability position in accordance with contract thresholds and can be used to settle the fair value of the interest rate swap agreements in the event of default. A daily settlement occurs through a clearing agent for changes in the fair value of centrally cleared derivatives. Not all of the derivatives are required to be cleared daily through a clearing agent. As a result, the total fair values of interest rate swap derivative assets and derivative liabilities recognized on the consolidated balance sheet are not equal and offsetting.

The Corporation is also a party to foreign currency exchange contracts with financial institution counterparties, under which the Corporation has the right to net-settle multiple contracts with the same counterparty in the event of default on, or termination of, any one contract. As with interest rate swaps, collateral is posted by the party with a net liability position in accordance with contract thresholds and can be used to settle the fair value of the foreign currency exchange contracts in the event of default.

The Corporation also enters into agreements with customers in which it sells securities subject to an obligation to repurchase the same or similar securities, referred to as repurchase agreements. Under these agreements, the Corporation may transfer legal control over the assets but still maintain effective control through agreements that both entitle and obligate the Corporation to repurchase the assets. Therefore, repurchase agreements are reported as secured borrowings, classified in short-term borrowings on the consolidated balance sheets, while the securities underlying the repurchase agreements remain classified with investment securities on the consolidated balance sheets. The Corporation has no intent to set off these amounts, therefore, these repurchase agreements are not eligible for offset.



	Gross Amounts		Gross Amounts Not Offset
	Recognized		on the Consolidated
	on the		Balance Sheets
	Consolidated		Financial			Cash			Net
	Balance Sheets		Instruments⁽¹⁾			Collateral ⁽²⁾			Amount
	(in thousands)
March 31, 2020
Interest rate swap derivative assets	$	368,178	$	(6	)	$	—		$	368,172
Foreign exchange derivative assets with correspondent banks	168		(168		)	—			—
Total	$	368,346	$	(174	)	$	—		$	368,172

Interest rate swap derivative liabilities	$	180,582	$	(6	)	$	(180,576	)	$	—
Foreign exchange derivative liabilities with correspondent banks	252		(168		)	—			84
Total	$	180,834	$	(174	)	$	(180,576	)	$	84

December 31, 2019
Interest rate swap derivative assets	$	144,179	$	(757	)	$	—		$	143,422
Foreign exchange derivative assets with correspondent banks	192		(45		)	—			147
Total	$	144,371	$	(802	)	$	—		$	143,569

Interest rate swap derivative liabilities	$	76,022	$	(757	)	$	(75,265	)	$	—
Foreign exchange derivative liabilities with correspondent banks	45		(45		)	—			—
Total	$	76,067	$	(802	)	$	(75,265	)	$	—

Amounts represent cash collateral received from the counterparty or posted by the Corporation on interest rate swap transactions and foreign exchange contracts with financial institution counterparties. Interest rate swaps with customers are collateralized by the same collateral securing the underlying loans to those borrowers. Cash and securities collateral amounts are included in the table only to the extent of the net derivative fair values.