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Fair Value Measurements
9 Months Ended
Sep. 30, 2020
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements
The Corporation uses fair value measurements to record fair value adjustments on certain assets and liabilities and to determine fair value disclosures.  Items recorded at fair value on a recurring basis include securities available for sale, mortgage loans held for sale and derivatives.  Additionally, from time to time, we may be required to record at fair value other assets on a nonrecurring basis, such as collateral dependent individually analyzed / impaired loans, property acquired through foreclosure or repossession and mortgage servicing rights.  These nonrecurring fair value adjustments typically involve the application of lower of cost or market accounting or write-downs of individual assets.

Fair value is a market-based measurement, not an entity-specific measurement.  Fair value measurements are determined based on the assumptions the market participants would use in pricing the asset or liability.  In addition, GAAP specifies a hierarchy of valuation techniques based on whether the types of valuation information (“inputs”) are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Corporation’s market assumptions. These two types of inputs have created the following fair value hierarchy:

Level 1 – Quoted prices for identical assets or liabilities in active markets.
Level 2 – Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in inactive markets; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets.
Level 3 – Valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable in the markets and which reflect the Corporation’s market assumptions.

Fair Value Option Election
GAAP allows for the irrevocable option to elect fair value accounting for the initial and subsequent measurement for certain financial assets and liabilities on a contract-by-contract basis. The Corporation has elected the fair value option for mortgage loans held for sale to better match changes in fair value of the loans with changes in the fair value of the forward sale commitment contracts used to economically hedge them.

The following table presents a summary of mortgage loans held for sale accounted for under the fair value option:
(Dollars in thousands)September 30,
2020
December 31,
2019
Aggregate fair value$68,095 $27,833 
Aggregate principal balance
65,263 27,168 
Difference between fair value and principal balance$2,832 $665 

Changes in fair value of mortgage loans held for sale accounted for under the fair value option election amounted to increases of $1.1 million and $2.2 million, respectively, in the three and nine months ended September 30, 2020, compared to increases
of $82 thousand and $462 thousand, respectively, in the three and nine months ended September 30, 2019. These amounts were partially offset in earnings by the changes in fair value of forward sale commitments used to economically hedge them. The changes in fair value are reported as a component of mortgage banking revenues in the Unaudited Consolidated Statements of Income.

There were no mortgage loans held for sale 90 days or more past due as of September 30, 2020 and December 31, 2019.

Valuation Techniques
Debt Securities
Available for sale debt securities are recorded at fair value on a recurring basis.  When available, the Corporation uses quoted market prices to determine the fair value of debt securities; such items are classified as Level 1. There were no Level 1 debt securities held at September 30, 2020 and December 31, 2019.

Level 2 debt securities are traded less frequently than exchange-traded instruments. The fair value of these securities is determined using matrix pricing with inputs that are observable in the market or can be derived principally from or corroborated by observable market data.  This category includes obligations of U.S. government-sponsored enterprises, including mortgage-backed securities, individual name issuer trust preferred debt securities and corporate bonds.

Debt securities not actively traded whose fair value is determined through the use of cash flows utilizing inputs that are unobservable are classified as Level 3. There were no Level 3 debt securities held at September 30, 2020 and December 31, 2019.

Mortgage Loans Held for Sale
The fair value of mortgage loans held for sale is estimated based on current market prices for similar loans in the secondary market and therefore are classified as Level 2 assets.

Collateral Dependent Individually Analyzed / Impaired Loans
The fair value of collateral dependent loans that are individually analyzed or were previously deemed impaired is determined based upon the appraised fair value of the underlying collateral. Such collateral primarily consists of real estate and, to a lesser extent, other business assets. For collateral dependent loans for which repayment is to be provided substantially through the sale of the collateral, management adjusts the fair value for estimated costs to sell. For collateral dependent loans for which repayment is to be provided substantially through the operation of the collateral, such as accruing TDRs, estimated costs to sell are not incorporated into the measurement. Management may also adjust appraised values to reflect estimated market value declines or apply other discounts to appraised values resulting from its knowledge of the collateral. Internal valuations may be utilized to determine the fair value of other business assets. Collateral dependent individually analyzed / impaired loans are categorized as Level 3.

Loan Servicing Rights
Loans sold with the retention of servicing result in the recognition of loan servicing rights. Loan servicing rights are included in other assets in the Consolidated Balance Sheets and are amortized as an offset to mortgage banking revenues over the estimated period of servicing. Loan servicing rights are evaluated quarterly for impairment based on their fair value. Impairment exists if the carrying value exceeds the estimated fair value. Impairment is measured on an aggregated basis by stratifying the loan servicing rights based on homogeneous characteristics such as note rate and loan type. The fair value is estimated using an independent valuation model that estimates the present value of expected cash flows, incorporating assumptions for discount rates and prepayment rates. Any impairment is recognized through a valuation allowance and as a reduction to mortgage banking revenues. Loan servicing rights are categorized as Level 3.

Property Acquired Through Foreclosure or Repossession
Property acquired through foreclosure or repossession included in other assets in the Unaudited Consolidated Balance Sheets is adjusted to fair value less costs to sell upon transfer out of loans through a charge to allowance for credit losses on loans. Subsequently, it is carried at the lower of carrying value or fair value less costs to sell. Such subsequent valuation charges are charged through earnings. Fair value is generally based upon appraised values of the collateral. Management may adjust appraised values to reflect estimated market value declines or apply other discounts to appraised values for unobservable factors resulting from its knowledge of the property, and such property is categorized as Level 3.
Derivatives
Interest rate cap, swap and floor contracts are traded in over-the-counter markets where quoted market prices are not readily available.  Fair value measurements are determined using independent pricing models that utilize primarily market observable inputs, such as swap rates of different maturities and LIBOR rates. The Corporation also evaluates the credit risk of its counterparties, as well as that of the Corporation.  Accordingly, factors such as the likelihood of default by the Corporation and its counterparties, its net exposures and remaining contractual life are considered in determining if any fair value adjustments related to credit risk are required.  Counterparty exposure is evaluated by netting positions that are subject to master netting agreements, as well as considering the amount of collateral securing the position, if any. Although the Corporation has determined that the majority of the inputs used to value its interest rate swap, cap and floor contracts fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with interest rate contracts and risk participation agreements utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Corporation and its counterparties. However, as of September 30, 2020 and December 31, 2019, the Corporation has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Corporation has classified its derivative valuations in their entirety as Level 2.

Fair value measurements of forward loan commitments (interest rate lock commitments and forward sale commitments) are primarily based on current market prices for similar assets in the secondary market for mortgage loans and therefore are classified as Level 2 assets. The fair value of interest rate lock commitments is also dependent on the ultimate closing of the loans. Pull-through rates are based on the Corporation’s historical data and reflect the Corporation’s best estimate of the likelihood that a commitment will result in a closed loan. Although the pull-through rates are Level 3 inputs, the Corporation has assessed the significance of the impact of pull-through rates on the overall valuation of its interest rate lock commitments and has determined that they are not significant to the overall valuation. As a result, the Corporation has classified its interest rate lock commitments as Level 2.

Items Recorded at Fair Value on a Recurring Basis
The following tables present the balances of assets and liabilities reported at fair value on a recurring basis:
(Dollars in thousands)TotalQuoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
September 30, 2020
Assets:
Available for sale debt securities:
Obligations of U.S. government-sponsored enterprises
$146,540 $— $146,540 $— 
Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises
745,071 — 745,071 — 
Individual name issuer trust preferred debt securities
12,363 — 12,363 — 
Corporate bonds
9,876 — 9,876 — 
Mortgage loans held for sale68,095 — 68,095 — 
Derivative assets93,518 — 93,518 — 
Total assets at fair value on a recurring basis$1,075,463 $— $1,075,463 $— 
Liabilities:
Derivative liabilities$92,908 $— $92,908 $— 
Total liabilities at fair value on a recurring basis$92,908 $— $92,908 $— 
(Dollars in thousands)TotalQuoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
December 31, 2019
Assets:
Available for sale debt securities:
Obligations of U.S. government-sponsored enterprises
$157,648 $— $157,648 $— 
Mortgage-backed securities issued by U.S. government agencies and U.S. government-sponsored enterprises
719,080 — 719,080 — 
Individual name issuer trust preferred debt securities
12,579 — 12,579 — 
Corporate bonds
10,183 — 10,183 — 
Mortgage loans held for sale27,833 — 27,833 — 
Derivative assets28,864 — 28,864 — 
Total assets at fair value on a recurring basis$956,187 $— $956,187 $— 
Liabilities:
Derivative liabilities$29,381 $— $29,381 $— 
Total liabilities at fair value on a recurring basis$29,381 $— $29,381 $— 
Items Recorded at Fair Value on a Nonrecurring Basis
The following table presents the carrying value of assets held at September 30, 2020, which were written down to fair value during the nine months ended September 30, 2020:
(Dollars in thousands)TotalQuoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Assets:
Collateral dependent individually analyzed CRE loan$285 $— $— $285 
Loan servicing rights6,584 — — 6,584 
Total assets at fair value on a nonrecurring basis$6,869 $— $— $6,869 

The following table presents the carrying value of assets held at December 31, 2019, which were written down to fair value during the year ended December 31, 2019:
(Dollars in thousands)TotalQuoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Assets:
Collateral dependent impaired loans$1,448 $— $— $1,448 
Property acquired through foreclosure or repossession1,109 — — 1,109 
Total assets at fair value on a nonrecurring basis$2,557 $— $— $2,557 
The following tables present valuation techniques and unobservable inputs for assets measured at fair value on a nonrecurring basis for which the Corporation has utilized Level 3 inputs to determine fair value:
(Dollars in thousands)Fair ValueValuation TechniqueUnobservable InputRange of Inputs Utilized
(Weighted Average)
September 30, 2020
Collateral dependent individually analyzed CRE loan
$285 Appraisals of collateralDiscount for costs to sell
0% - 25% (14%)
Appraisal adjustments (1)
0% - 100% (43%)
Loan servicing rights
$6,584 Discounted Cash FlowDiscount rates
10% - 14% (10%)
Prepayment rates
18% - 39% (20%)
(1)Management may adjust appraisal values to reflect market value declines or other discounts resulting from its knowledge of the property.

(Dollars in thousands)Fair ValueValuation TechniqueUnobservable InputRange of Inputs Utilized
(Weighted Average)
December 31, 2019
Collateral dependent impaired loans
$1,448 Appraisals of collateralDiscount for costs to sell
0% - 20% (5%)
Appraisal adjustments (1)
0% - 100% (67%)
Property acquired through foreclosure or repossession
$1,109 Appraisals of collateralDiscount for costs to sell
12%
Appraisal adjustments (1)
22%
(1)Management may adjust appraisal values to reflect market value declines or other discounts resulting from its knowledge of the property.

Valuation of Financial Instruments
The estimated fair values and related carrying amounts for financial instruments for which fair value is only disclosed are presented below as of the periods indicated. The tables exclude financial instruments for which the carrying value approximates fair value such as cash and cash equivalents, FHLB stock, accrued interest receivable, bank-owned life insurance, non-maturity deposits, PPPLF borrowings and accrued interest payable.
(Dollars in thousands)
September 30, 2020Carrying AmountTotal
Fair Value
Quoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Financial Assets:
Loans, net of allowance for credit losses on loans$4,239,402 $4,236,032 $— $— $4,236,032 
Financial Liabilities:
Time deposits$1,313,223 $1,320,698 $— $1,320,698 $— 
FHLB advances713,868 724,614 — 724,614 — 
Junior subordinated debentures22,681 18,578 — 18,578 — 
(Dollars in thousands)
December 31, 2019Carrying AmountTotal
Fair Value
Quoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Financial Assets:
Loans, net of allowance for loan losses$3,865,985 $3,869,192 $— $— $3,869,192 
Financial Liabilities:
Time deposits$1,069,323 $1,082,830 $— $1,082,830 $— 
FHLB advances1,141,464 1,145,242 — 1,145,242 — 
Junior subordinated debentures22,681 19,628 — 19,628 —