Derivatives and Hedging Activities

For asset and liability management purposes, the Company enters into interest rate swap contracts to hedge against changes in forecasted cash flows due to interest rate exposures. Interest rate swaps are contracts in which a series of interest payments are exchanged over a prescribed period. The notional amount upon which the interest payments are based is not exchanged. The swap agreements are derivative instruments and convert a portion of the Company’s forecasted variable rate debt to a fixed rate (i.e., cash flow hedge) over the payment term of the interest rate swap. The effective portion of the gain or loss on cash flow hedging instruments is initially reported as a component of other comprehensive income and subsequently reclassified into earnings in the same period during which the transaction affects earnings. The ineffective portion of the gain or loss on derivative instruments, if any, is recognized in earnings. The Company does not enter into interest rate swap agreements for trading or speculative purposes. As of March 31, 2018, the Company does not have an existing agreement.

The Company also enters into certain interest rate swap contracts that are not designated as hedging instruments. These derivative contracts relate to transactions in which the Company enters into an interest rate swap with a customer while at the same time entering into an offsetting interest rate swap with a third party financial institution. Because the Company acts as an intermediary for the customer, changes in the fair value of the underlying derivative contracts for the most part offset each other and do not significantly impact the Company's results of operations.

In the normal course of business, the Company enters into interest rate lock commitments to finance residential mortgage loans that are not designated as accounting hedges. These commitments, which contain fixed expiration dates, offer the borrower an interest rate guarantee provided the loan meets underwriting guidelines and closes within the timeframe established by the Company. Interest rate risk arises on these commitments and subsequently closed loans if interest rates change between the time of the interest rate lock and the delivery of the loan to the investor. Loan commitments related to residential mortgage loans intended to be sold are considered derivatives and are marked to market through earnings. In addition to the effects of the change in market interest rate, the fair value measurement of the derivative also contemplates the expected cash flows to be received from the counterparty from the future sale of the loan.

The Company sells residential mortgage loans on either a best efforts or mandatory delivery basis. The Company mitigates the effect of the interest rate risk inherent in providing interest rate lock commitments by entering into forward loan sales contracts. During the interest rate lock commitment period, these forward loan sales contracts are marked to market through earnings and are not designated as accounting hedges. Exclusive of the fair value component associated with the projected cash flows from the loan delivery to the investor, the changes in fair value related to movements in market rates of the interest rate lock commitments and the forward loan sales contracts generally move in opposite directions, and the net impact of changes in these valuations on net income during the loan commitment period is generally inconsequential. When the loan is funded to the borrower, the interest rate lock commitment derivative expires and the Company records a loan held for sale. The forward loan sales contract acts as a hedge against the variability in cash to be received from the loan sale. The changes in measurement of the estimated fair values of the interest rate lock commitments and forward loan sales contracts are included in mortgage banking revenues in the accompanying consolidated statements of income.

The notional amounts and estimated fair values of the Company's derivatives are presented in the following table. Fair value estimates are obtained from third parties and are based on pricing models.



	March 31, 2018				December 31, 2017
	Notional Amount		Estimated Fair Value		Notional Amount		Estimated Fair Value
Derivative Assets (included in other assets on the consolidated balance sheets):
Non-hedging interest rate derivatives:
Interest rate swap contracts	$	370.5	$	8.3	$	344.2	$	7.5
Interest rate lock commitments	66.9		1.4		60.7		1.3
Total derivative assets	$	437.4	$	9.7	$	404.9	$	8.8

Derivative Liabilities (included in accounts payable and accrued expenses on the consolidated balance sheets):
Non-hedging interest rate derivatives:
Interest rate swap contracts	370.5		7.7		344.2		7.8
Forward loan sales contracts	95.7		0.2		88.8		0.1
Total derivative liabilities	$	466.2	$	7.9	$	433.0	$	7.9

The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in Accumulated Other Comprehensive Income and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The ineffective portion of the change in fair value of the derivatives is recognized directly in earnings. During the three months ended March 31, 2018, the Company did not record any hedge ineffectiveness.

Derivative assets and liabilities are recorded at fair value on the balance sheet and do not take into account the effects of master netting arrangements. Master netting arrangements allow the Company to settle all contracts held with a single counterparty on a net basis and to offset net contract position with related collateral where applicable.

The following table illustrates the potential effect of the Company's master netting arrangements, by type of financial instrument, on the Company's consolidated balance sheets as of March 31, 2018 and December 31, 2017:



	March 31, 2018
	Gross Amounts Recognized		Gross Amounts Offset in the Balance Sheet		Net Amounts in the Balance Sheet		Financial Instruments		Fair Value of Financial Collateral in the Balance Sheet		Net Amount
Financial Assets
Interest rate swap contracts	$	8.3	$	—	$	8.3	$	1.7	$	1.8	$	4.8
Mortgage related derivatives	1.4		—		1.4		—		—		1.4
Total derivatives	9.7		—		9.7		1.7		1.8		6.2
Total assets	$	9.7	$	—	$	9.7	$	1.7	$	1.8	$	6.2

Financial Liabilities
Interest rate swap contracts	$	7.7	$	—	$	7.7	$	1.7	$	5.7	$	0.3
Mortgage related derivatives	0.2		—		0.2		—		—		0.2
Total derivatives	7.9		—		7.9		1.7		5.7		0.5
Repurchase agreements	633.8		—		633.8		—		633.8		—
Total liabilities	$	641.7	$	—	$	641.7	$	1.7	$	639.5	$	0.5



	December 31, 2017
	Gross Amounts Recognized		Gross Amounts Offset in the Balance Sheet		Net Amounts in the Balance Sheet		Financial Instruments		Fair Value of Financial Collateral in the Balance Sheet		Net Amount
Financial Assets
Interest rate swap contracts	$	7.5	$	—	$	7.5	$	2.4	$	—	$	5.1
Mortgage related derivatives	1.3		—		1.3		—		—		1.3
Total derivatives	8.8		—		8.8		2.4		—		6.4
Total assets	$	8.8	$	—	$	8.8	$	2.4	$	—	$	6.4

Financial Liabilities
Interest rate swap contracts	$	7.8	$	—	$	7.8	$	2.4	$	3.3	$	2.1
Mortgage related derivatives	0.1		—		0.1		—		—		0.1
Total derivatives	7.9		—		7.9		2.4		3.3		2.2
Repurchase agreements	643.0		—		643.0		—		643.0		—
Total liabilities	$	650.9	$	—	$	650.9	$	2.4	$	646.3	$	2.2

The following table presents the pre-tax gains or losses related to derivative contracts that were recorded in other non-interest income in the Company's statements of income for the periods indicated:



	Three Months Ended March 31,
	2018			2017
Non-hedging interest rate derivatives:
Amount of gain recognized in other non-interest income	$	0.3		$	—
Amount of net fee income recognized in other non-interest income	0.5			—
Amount of net gains recognized in mortgage banking revenues	(0.1		)	(0.1		)