Summary of Significant Accounting Policies (Policies)	12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]
Organization	Organization Univest Corporation of Pennsylvania (the Corporation) through its wholly owned subsidiary, Univest Bank and Trust Co. (the Bank), is engaged in domestic commercial and consumer banking services and provides a full range of banking and trust services to its customers. The Bank wholly owns Univest Capital, Inc., which provides lease financing, and Delview, Inc., who through its subsidiaries, Univest Investments, Inc., Univest Insurance, Inc. and Girard Partners provides financial planning, investment management, investment advisory, insurance products and brokerage services. Univest Investments, Inc., Univest Insurance, Inc. and Univest Capital, Inc. were formed to enhance the traditional banking and trust services provided by the Bank, along with the acquisition of Girard Partners. At December 31, 2015, the Corporation has three reportable business segments: Banking, Wealth Management and Insurance. The Corporation determines its segments based primarily upon product and service offerings, through the types of income generated and the regulatory environment. This is strategically how the Corporation operates and has positioned itself in the marketplace. Accordingly, significant operating decisions are based upon analysis of each of these segments. At December 31, 2015, these segments meet the quantitative thresholds for separate disclosure as a business segment. For more detailed discussion and financial information on the business segments, see Note 23 “Segment Reporting”. The Bank serves Montgomery, Bucks and Chester Counties, the Lehigh Valley of Pennsylvania and the greater Philadelphia marketplace through twenty-nine banking offices and provides banking and trust services to the residents and employees of twelve retirement communities. Banking services are also available on-line at the Corporation’s website at www.univest.net.
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Corporation and its wholly owned subsidiaries; the Corporation’s primary subsidiary is the Bank. All significant intercompany balances and transactions have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform to the current-year presentation.
Use of Estimates	Use of Estimates The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles (U.S. GAAP) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant changes include fair value measurement of investment securities available-for-sale and assessment for impairment of certain investment securities, reserve for loan and lease losses, valuation of goodwill and other intangible assets, mortgage servicing rights, deferred tax assets and liabilities, benefit plans and stock-based compensation expense.
Interest-earning Deposits with Other Banks	Interest-earning Deposits with Other Banks Interest-earning deposits with other banks consist of deposit accounts with other financial institutions generally having maturities of three months or less.
Investment Securities	Investment Securities Securities are classified as investment securities held-to-maturity and carried at amortized cost if management has the positive intent and ability to hold the securities to maturity. Securities purchased with the intention of recognizing short-term profits are placed in the trading account and are carried at fair value. The Corporation did not have any trading account securities at December 31, 2015 or 2014. Securities not classified as held-to-maturity or trading are designated securities available-for-sale and carried at fair value with unrealized gains and losses reflected in other comprehensive income, net of estimated income taxes. Realized gains and losses on the sale of investment securities are recognized using the specific identification method and are included in the consolidated statements of income. The amortization of premiums and accretion of discounts are included in interest income and calculated using the level yield method. Management evaluates debt securities, which are comprised of U.S. government, government sponsored agencies, municipalities, corporate bonds and other issuers, for other-than-temporary impairment by considering the current economic conditions, the length of time and the extent to which the fair value has been less than cost, market interest rates and the bond rating of each security. All of the debt securities are rated as investment grade and management believes that it will not incur any losses. The unrealized losses on the Corporation’s investments in debt securities are temporary in nature since they are primarily related to market interest rates and are not related to the underlying credit quality of the issuers. The Corporation does not have the intent to sell the debt securities and believes it is more likely than not, that it will not have to sell the securities before recovery of their cost basis. The credit portion of any loss on debt securities is recognized through earnings and the noncredit portion of any loss related to debt securities that the Corporation does not intend to sell, and it is more likely than not that the Corporation will not be required to sell the securities prior to recovery, is recognized in other comprehensive income, net of tax. The Corporation evaluates its equity securities for other-than-temporary impairment and recognizes other-than-temporary impairment charges when it has determined that it is probable that the fair value of certain equity securities will not recover to the Corporation’s cost basis in the individual securities within a reasonable period of time due to a decline in the financial stability of the underlying companies. Management evaluates the near-term prospects of the issuers in relation to the severity and duration of the impairment. The Corporation has the intent and ability to hold these securities until recovery of the Corporation’s cost basis occurs.
Loans and Leases	Loans and Leases Loans and leases are stated at the principal amount less net deferred fees and unearned discount. Interest income on commercial loans, real estate loans excluding residential real estate loans, and consumer loans is recorded on the outstanding balance method, using actual interest rates applied to daily principal balances. Interest on residential real estate loans is recorded based on the outstanding balance using the actual interest rate based upon a monthly interest calculation. Loan commitments are made to accommodate the financial needs of the customers. These commitments represent off-balance sheet items that are unfunded. Accrual of interest income on loans and leases ceases when collectability of interest and/or principal is questionable. If it is determined that the collection of interest previously accrued is uncertain, such accrual is reversed and charged to current earnings. Loans and leases are considered past due based upon failure to comply with contractual terms. A loan or lease is typically classified as nonaccrual when the contractual payment of principal or interest has become 90 days past due or management has serious doubts about the further collectability of principal or interest, even though the loan or lease is currently performing. When a loan or lease, including a loan or lease that is impaired, is classified as nonaccrual, the accrual of interest on such a loan or lease is discontinued. A loan or lease may remain on accrual status if it is in the process of collection and is either guaranteed or well secured. When a loan or lease is placed on nonaccrual status, unpaid interest credited to income is reversed. Interest payments received on nonaccrual loans and leases are either applied against principal or reported as interest income, according to management’s judgment as to the collectability of principal. Loans and leases are usually restored to accrual status when the obligation is brought current, has performed in accordance with the contractual terms for a reasonable period of time, and the ultimate collectability of the total contractual principal and interest is no longer in doubt. A loan or lease is considered impaired when, based on current information and events, it is probable that the Corporation will be unable to collect all amounts due, including principal and interest, according to the contractual terms of the loan agreement. Interest on impaired loans and leases, which are not classified as nonaccrual, is recognized on the accrual basis.
Loan and Lease Fees	Loan and Lease Fees Fees collected upon loan or lease origination and certain direct costs of originating loans and leases are deferred and recognized over the contractual lives of the related loans and leases as yield adjustments using the interest method. Upon prepayment or other disposition of the underlying loans and leases before their contractual maturities, any associated unearned fees or unamortized costs are recognized.
Reserve for Loan and Lease Losses	Reserve for Loan and Lease Losses The reserve for loan and lease losses is maintained at a level that management believes is appropriate to absorb known and inherent losses in the loan and lease portfolio. Management’s methodology to determine the adequacy of and the additions to the reserve considers specific credit reviews, past loan and lease loss experience, current economic conditions and trends, and the volume, growth, and composition of the loan portfolio. The reserve for loan and lease loss analysis takes into consideration the growth of the loan and lease portfolio, the status of past-due loans and leases, current economic conditions, various types of lending activity, policies, real estate and other loan commitments, and significant changes in charge-off activity. Impaired loans, including nonaccrual loans and leases, troubled debt restructured loans and other accruing impaired loans are evaluated individually. All other loans and leases are evaluated as pools. Based on historical loss experience and qualitative factors, loss factors are determined giving consideration to the areas noted in the first paragraph and applied to the pooled loan and lease categories to develop the general or allocated portion of the reserve. The reserve for loan and lease losses is determined at the end of each quarter, and more frequently for management review purposes. Calculating the Corporation's reserve for loan and lease losses begins with the Bank's loan portfolio utilizing historical loss data as a starting point, while evaluating the impact of environmental factors in a quantitative manner as they relate to the collectability of outstanding loan obligations. The Corporation utilizes a rolling eight-quarter migration analysis and loss emergence period analysis to determine the annualized net expected loan loss experience. Each quarter, the conditions that exist within the look-back period are compared to current conditions to support a conclusion as to which qualitative adjustments are (or are not) deemed necessary for each loan portfolio segment. These factors are evaluated subjectively based on management's experience and supported by the Corporation's defined analytical metrics/drivers relative to the historical look-back period. Factors include, but are not limited to, asset quality trends, portfolio growth trends, changes in lending policies and management, economic trends, concentrations of credit risk and the impact of collateral dependent lending. The reserve for loan and lease losses is based on management’s evaluation of the loan and lease portfolio under current economic conditions and such other factors, which deserve recognition in estimating loan and lease losses. This evaluation is inherently subjective, as it requires estimates including the amounts and timing of future cash flows expected to be received on impaired loans and leases that may be susceptible to significant change. Additions to the reserve arise from the provision for loan and lease losses charged to operations or from the recovery of amounts previously charged off. Loan and lease charge-offs reduce the reserve. Loans and leases are charged off when there has been permanent impairment or when in the opinion of management the full amount of the loan or lease will not be realized. Certain impaired loans are reported at the loan’s observable market price or the fair value of the collateral if the loan is collateral dependent, or for certain impaired loans, at the present value of expected future cash flows using the loan’s initial effective interest rate. For commercial impaired loans which are collateral dependent, the fair value of collateral is based on appraisals performed by qualified licensed appraisers hired by the Corporation less management’s estimated costs to sell. Appraisals are updated annually and obtained more frequently if changes in the property or market conditions warrant. Once an updated appraisal is received, if the fair value less estimated costs to sell is less than the carrying amount of the collateral dependent loan, a charge-off to the reserve for loan and lease losses is recorded for the difference. The reserve for loan and lease losses consists of an allocated reserve and an unallocated reserve. The allocated reserve is comprised of reserves established on specific loans and leases, and class reserves based on historical loan and lease loss experience and qualitative factors, current trends, and management assessments. The unallocated reserve supports other risk considerations not readily quantifiable through the allocated reserve metrics outlined above, as well as the inherent imprecision of the reserve for loan and lease losses model complexity. These considerations include, but are not limited to, the improving credit risk profile of performing loans individually measured for impairment, less than fully seasoned home equity portfolio metrics and reclassification of loan settlement exposures. The specific reserve element is based on a regular analysis of impaired commercial and real estate loans. For these loans, the specific reserve established is based on an analysis of related collateral value, cash flow considerations and, if applicable, guarantor capacity. The class reserve element is determined by an internal loan and lease grading process in conjunction with associated allowance factors. The Corporation revises the class allowance factors whenever necessary, but no less than quarterly, in order to address improving or deteriorating credit quality trends or specific risks associated with a given loan or lease pool classification. The Corporation maintains a reserve in other liabilities for off-balance sheet credit exposures that currently are unfunded in categories with historical loss experience. In addition, the Bank's primary examiner, as a regular part of their examination process, may require the Bank to increase the level of reserves.
Premises and Equipment	Premises and Equipment Land is stated at cost, and premises and equipment are stated at cost less accumulated depreciation. Depreciation is computed on the straight-line method and charged to operating expenses over the estimated useful lives of the assets. The estimated useful life for new buildings constructed on land owned is forty years, and for new buildings constructed on leased land, is the lesser of forty years or the lease term including anticipated renewable terms. The useful life of purchased existing buildings is the estimated remaining useful life at the time of the purchase. Land improvements are considered to have estimated useful lives of fifteen years or the lease term including anticipated renewable terms. Furniture, fixtures and equipment have estimated useful lives ranging from three to ten years.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets The Corporation accounts for its acquisitions using the purchase accounting method. Purchase accounting requires the total purchase price to be allocated to the estimated fair values of assets acquired and liabilities assumed, including certain intangible assets that must be recognized. Typically, this allocation results in the purchase price exceeding the fair value of net assets acquired, which is recorded as goodwill. Core deposit intangibles are a measure of the value of checking, money market and savings deposits acquired in business combinations accounted for under the purchase method. Core deposit intangibles and other identified intangibles with finite useful lives are amortized using the sum of the year’s digits over their estimated useful lives of up to fifteen years. Customer related intangibles are amortized over their estimated useful lives of five to twelve years. Covenants not to compete are amortized over their three to five-year contractual lives. The Corporation completes a goodwill analysis at least on an annual basis or more often if events and circumstances indicate that there may be impairment. The Corporation also completes an impairment test for other intangible assets on an annual basis or more often if events and circumstances indicate a possible impairment. There can be no assurance that future impairment analyses will not result in a charge to earnings. Mortgage servicing rights are recognized as separate assets when mortgage loans are sold and the servicing rights are retained. Capitalized mortgage servicing rights are reported in other intangible assets on the consolidated balance sheets and are amortized into noninterest income in proportion to, and over the period of, the estimated future net servicing period of the underlying mortgage loans. Mortgage servicing rights are evaluated for impairment, on a quarterly basis, based upon the fair value of the servicing rights as compared to amortized cost. The Corporation estimates the fair value of mortgage servicing rights using discounted cash flow models that calculate the present value of estimated future net servicing income. The model uses readily available prepayment speed assumptions for the current interest rates of the portfolios serviced. Mortgage servicing rights are carried at the lower of amortized cost or estimated fair value. Impairment is recognized through a valuation allowance, to the extent that fair value is less than the unamortized capitalized amount.
Bank Owned Life Insurance	Bank Owned Life Insurance The Corporation carries bank owned life insurance at the net cash surrender value of the policies. Changes in the net cash surrender value of these policies are reflected in noninterest income. Proceeds from and purchases of bank owned life insurance are reflected in the consolidated statements of cash flows under investing activities. The Corporation recognizes a liability for the future death benefit for certain endorsement split-dollar life insurance arrangements that provide an employee with a death benefit in a postretirement/termination period.
Other Real Estate Owned	Other Real Estate Owned Other real estate owned represents properties acquired through customers’ loan defaults and is included in other assets. The real estate is stated at an amount equal to the loan balance prior to foreclosure, plus costs incurred for improvements to the property, but no more than the fair value of the property, less estimated costs to sell. Any write-down, at or prior to the dates the real estate is considered foreclosed, is charged to the allowance for loan losses. Subsequent write-downs and any gain or loss upon the sale of real estate owned is recorded in other noninterest income. Expenses incurred in connection with holding such assets are recorded in other noninterest expense.
Derivative Financial Instruments	Derivative Financial Instruments The Corporation recognizes all derivative financial instruments on its balance sheet at fair value. Derivatives that are not hedges must be adjusted to fair value through income. If a derivative is a hedge, depending on the nature of the hedge, changes in the fair value of the derivative are either offset against the change in fair value of the hedged assets, liabilities, or firm commitments through earnings, or recognized in other comprehensive income until the underlying forecasted transaction is recognized in earnings. The ineffective portion of a derivative's change in fair value is recognized in earnings immediately. To determine fair value, the Corporation uses third party pricing models that incorporate assumptions about market conditions and risks that are current at the reporting date. The Corporation may use interest-rate swap agreements to modify interest rate characteristics from variable to fixed or fixed to variable in order to reduce the impact of interest rate changes on future net interest income. The Corporation accounts for its interest-rate swap contracts in cash flow hedging relationships by establishing and documenting the effectiveness of the instrument in offsetting the change in cash flows of assets or liabilities that are being hedged. To determine effectiveness, the Corporation performs an analysis to identify if changes in fair value of the derivative correlate to the equivalent changes in the forecasted interest receipts related to a specified hedged item. Recorded amounts related to interest-rate swaps are included in other assets or liabilities. Changes in the fair value of derivative instruments designated as hedges of future cash flows are recognized in accumulated other comprehensive income until the underlying forecasted transactions occur, at which time the deferred gains and losses are recognized in earnings. The change in fair value of the ineffective part of the instrument would be charged to earnings, potentially causing material fluctuations in reported earnings in the period of the change relative to comparable periods. In a fair value hedge, the fair values of the interest rate swap agreements and changes in the fair values of the hedged items are recorded in the Corporation’s consolidated balance sheet with the corresponding gain or loss being recognized in the consolidated statement of income. The difference between changes in the fair values of interest rate swap agreements and the hedged items represents hedge ineffectiveness and is recorded in net interest income in the consolidated statement of income. The Corporation performs an assessment, both at the inception of the hedge and quarterly thereafter, to determine whether these derivatives are highly effective in offsetting changes in the value of the hedged items. 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 sale of mortgage loans to third-party investors to hedge the effect of changes in interest rates on the value of the interest rate locks. Forward loan sale commitments may also be in the form of commitments to sell individual mortgage loans at a fixed price at a future date. Both the interest rate locks and the forward loan sale commitments are accounted for as derivatives and carried at fair value, determined as the amount that would be necessary to settle each derivative financial instrument at the balance sheet date. Gross derivative assets and liabilities are recorded within other assets and other liabilities on the consolidated balance sheets, with changes in fair value during the period recorded within the net gain on mortgage banking activities on the consolidated statements of income.
Federal Home Loan Bank Stock, Federal Reserve Bank Stock and Certain Other Investments without Readily Determinable Fair Values	Federal Home Loan Bank Stock, Federal Reserve Bank Stock and Certain Other Investments without Readily Determinable Fair Values Federal Home Loan Bank stock, Federal Reserve Bank stock and certain other investments without readily determinable fair values are classified as other assets on the consolidated balance sheets. These investments are carried at cost and evaluated for impairment periodically or if events or circumstances indicate that there may be impairment.
Income Taxes	Income Taxes There are two components of income tax expense: current and deferred. Current income tax expense approximates cash to be paid or refunded for taxes for the applicable period. Deferred income taxes are provided for temporary differences between amounts reported for financial statement and tax purposes. Deferred income taxes are computed using the asset and liability method, such that deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between financial reporting amounts and the tax basis of existing assets and liabilities based on currently enacted tax laws and tax rates in effect for the periods in which the differences are expected to reverse. Deferred tax assets are subject to management’s judgment based upon available evidence that future realizations are “more likely than not.” If management determines that the Corporation is not more likely than not, to realize some or all of the net deferred tax asset in the future, a charge to income tax expense may be required to reduce the value of the net deferred tax asset to the expected realizable value. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized. Penalties are recorded in noninterest expense in the year they are assessed and paid and are treated as a non-deductible expense for tax purposes. Interest is recorded in noninterest expense in the year it is assessed and paid and is treated as a deductible expense for tax purposes.
Retirement Plans and Other Postretirement Benefits	Retirement Plans and Other Postretirement Benefits Substantially all employees who were hired before December 8, 2009 are covered by a noncontributory retirement plan. Effective December 31, 2009, the benefits previously accrued under the noncontributory retirement plan were frozen and the plan was amended and converted to a cash balance plan, with participants not losing any pension benefits already earned in the plan. Prior to the cash balance plan conversion effective December 31, 2009, the plan provided benefits based on a formula of each participant’s final average pay. Future benefits under the cash balance plan accrue by crediting participants annually with an amount equal to a percentage of earnings in that year based on years of credited service as defined in the plan. Employees hired on or after December 8, 2009 are not eligible to participate in the noncontributory retirement plan. The Corporation also provides supplemental executive retirement benefits, a portion of which is in excess of limits imposed on qualified plans by federal tax law; these plans are non-qualified benefit plans. These non-qualified benefit plans are not offered to new participants; all current participants are now retired. The Corporation provides certain postretirement healthcare and life insurance benefits for retired employees. The Corporation’s measurement date for plan assets and obligation is fiscal year-end. The Corporation recognizes on its consolidated balance sheet the funded status of its defined pension plans and changes in the funded status of the plan in the year in which the changes occur. An under-funded position would create a liability and an over-funded position would create an asset, with a correlating deferred tax asset or liability. The net impact would be an adjustment to equity as accumulated other comprehensive income (loss). The Corporation recognizes as a component of other comprehensive income (loss), net of tax, the actuarial gains and losses and the prior service costs and credits that arise during the period. The Corporation sponsors a 401(k) deferred salary savings plan, which is a qualified defined contribution plan, and which covers all employees of the Corporation and its subsidiaries, and provides that the Corporation make matching contributions as defined by the plan. The Corporation sponsors a Supplemental Non-Qualified Pension Plan (SNQPP) which was established in 1981 for employees who have served for several years, with ability and distinction, in one of the primary policy-making senior level positions in the Corporation. The SNQPP was established prior to the existence of a 401(k) deferred salary savings, employee stock purchase and long-term incentive plans and therefore is not offered to new participants; all current participants are now retired. These non-qualified plans are accounted for under guidance for deferred compensation arrangements.
Stock-Based Compensation	Stock-Based Compensation The fair value of share based awards is recognized as compensation expense over the vesting period based on the grant-date fair value of the awards. The Corporation uses the Black-Scholes Model to estimate the fair value of each option on the date of grant. The Black-Scholes Model estimates the fair value of employee stock options using a pricing model which takes into consideration the exercise price of the option, the expected life of the option, the current market price and its expected volatility, the expected dividends on the stock and the current risk-free interest rate for the expected life of the option. The Corporation grants stock options to employees with an exercise price equal to the fair value of the shares at the date of grant. The Corporation grants both fixed and variable (performance-based) restricted stock. The performance-based restricted stock awards vest based upon the Corporation’s performance against selected peers with respect to certain financial measures over a three-year period. The fair value of fixed restricted stock is equivalent to the fair value on the date of grant and is amortized over the vesting period. The fair value of the performance-based restricted stock is equivalent to the fair value on the date of grant and is amortized over the vesting period adjusted for a probability factor of achieving the performance goals.
Dividend Reinvestment and Employee Stock Purchase Plans	Dividend Reinvestment and Employee Stock Purchase Plans The Univest Dividend Reinvestment Plan allows for the issuance of 1,968,750 shares of common stock. During 2015 and 2014, 87,946 and 82,922 shares, respectively, were issued under the dividend reinvestment plan, with 464,235 shares available for future purchase at December 31, 2015. The 1996 Employee Stock Purchase Plan allows for the issuance of 984,375 shares of common stock. Employees may elect to make contributions to the plan in an aggregate amount not less than 2% or more than 10% of such employee’s total compensation. These contributions are then used to purchase stock during an offering period determined by the Corporation’s Employee Stock Purchase Plan Committee. The purchase price of the stock is 90% of the closing sale price on the last trading day of each quarter. Compensation expense is recognized as the discount is greater than 5% of the fair value. During 2015 and 2014, 26,440 and 23,271 shares, respectively, were issued under the employee stock purchase plan, with 706,184 shares available for future purchase at December 31, 2015.
Marketing and Advertising Costs	Marketing and Advertising Costs The Corporation’s accounting policy is to expense marketing and advertising costs as incurred, when the advertisement first takes place, or over the expected useful life of the related asset, as would be the case with billboards.
Statement of Cash Flows	Statement of Cash Flows The Corporation has defined those items included in the caption “Cash and due from banks” as cash and cash equivalents.
Trust Assets	Trust Assets Assets held by the Corporation in a fiduciary or agency capacity for its customers are not included in the consolidated financial statements since such items are not assets of the Corporation.
Earnings per Share	Earnings per Share The Corporation uses the two-class method to calculate earnings per share as the unvested restricted stock issued under the Corporation's equity incentive plans are participating shares with nonforfeitable rights to dividends. Under the two-class method, earnings per common share are computed by dividing the sum of distributed earnings to common shareholders and undistributed earnings allocated to common shareholders by the weighted average number of common shares outstanding for the period. In applying the two-class method, undistributed earnings are allocated to both common shares and participating securities based on the number of weighted average shares outstanding during the period. Diluted earnings per share reflect additional common shares that would have been outstanding if options on common shares had been exercised, as well as any adjustment to income that would result from the assumed issuance. Potential common shares that may be issued by the Corporation relate solely to outstanding stock options, and are determined using the treasury stock method. The effects of options to issue common stock are excluded from the computation of diluted earnings per share in periods in which the effect would be antidilutive.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In September 2015, the Financial Accounting Standards Board (FASB) issued an Accounting Standards Update (ASU) simplifying the accounting for measurement-period adjustments related to business combinations. The ASU eliminates the requirement to retrospectively adjust the financial statements for measurement-period adjustments that occur in periods after a business combination is consummated. Under this ASU, measurement-period adjustments are calculated as if they were known at the acquisition date, but are recognized in the reporting period in which they are determined. The ASU requires additional disclosures about the impact on current period income statement line items of adjustments that would have been recognized in prior periods if prior period information had been revised. The amendments in this ASU are effective for financial statements of public businesses issued for fiscal years and interim periods within those years beginning after December 15, 2015, or January 1, 2016 for the Corporation. The adoption of this ASU will not have any impact on the Corporation's financial statements. In April 2015, the FASB issued an ASU simplifying the presentation of debt issuance costs. The ASU requires that debt issuance costs related to a recognized debt liability shall be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The costs will continue to be amortized to interest expense using the effective interest method. The ASU is effective for financial statements of public business issued for fiscal years beginning after December 15, 2015, or January 1, 2016 for the Corporation. The adoption of ASU will not impact the Corporation's balance sheet presentation as the Corporation currently follows this presentation consistent with the guidance in FASB Concepts Statement No. 6. In May 2014, the FASB issued an ASU regarding revenue from contracts with customers which clarifies the principles for recognizing revenue and develops a common standard for U.S. GAAP and International Financial Reporting Standards. The ASU establishes a core principle that would require an entity to identify the contract(s) with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract and recognize revenue when (or as) the entity satisfies a performance obligation. The ASU provides for improved disclosure requirements that require entities to disclose sufficient information that enables users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. In August 2015, the FASB issued an ASU deferring the original effective date of this guidance by one year. This guidance is now effective for fiscal years and interim periods within those years beginning after December 15, 2017, or January 1, 2018 for the Corporation. The Corporation is in the process of evaluating the impact of the adoption of this guidance on the Corporation's financial statements; however, it is anticipated the impact will be only related to timing. In January 2014, the FASB issued an ASU regarding reclassification of residential real estate collateralized consumer mortgage loans upon foreclosure. The ASU clarifies that when an in-substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Additionally, the amendments require interim and annual disclosure of both (1) the amount of foreclosed residential real estate property held by the creditor and (2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The ASU was issued to eliminate diversity in practice on this topic. The amendment is effective for fiscal years and interim periods within those years beginning after December 15, 2014, or January 1, 2015 for the Corporation. The adoption of this guidance did not have a material impact on the Corporation's financial statements but resulted in expanded disclosures effective March 31, 2015, which are included in Note 5, “Loans and Leases.”

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2015

Univest Corporation of Pennsylvania (the Corporation) through its wholly owned subsidiary, Univest Bank and Trust Co. (the Bank), is engaged in domestic commercial and consumer banking services and provides a full range of banking and trust services to its customers. The Bank wholly owns Univest Capital, Inc., which provides lease financing, and Delview, Inc., who through its subsidiaries, Univest Investments, Inc., Univest Insurance, Inc. and Girard Partners provides financial planning, investment management, investment advisory, insurance products and brokerage services. Univest Investments, Inc., Univest Insurance, Inc. and Univest Capital, Inc. were formed to enhance the traditional banking and trust services provided by the Bank, along with the acquisition of Girard Partners.

At December 31, 2015, the Corporation has three reportable business segments: Banking, Wealth Management and Insurance. The Corporation determines its segments based primarily upon product and service offerings, through the types of income generated and the regulatory environment. This is strategically how the Corporation operates and has positioned itself in the marketplace. Accordingly, significant operating decisions are based upon analysis of each of these segments. At December 31, 2015, these segments meet the quantitative thresholds for separate disclosure as a business segment. For more detailed discussion and financial information on the business segments, see Note 23 “Segment Reporting”.

The Bank serves Montgomery, Bucks and Chester Counties, the Lehigh Valley of Pennsylvania and the greater Philadelphia marketplace through twenty-nine banking offices and provides banking and trust services to the residents and employees of twelve retirement communities. Banking services are also available on-line at the Corporation’s website at www.univest.net.

Principles of Consolidation

The consolidated financial statements include the accounts of the Corporation and its wholly owned subsidiaries; the Corporation’s primary subsidiary is the Bank. All significant intercompany balances and transactions have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform to the current-year presentation.

Use of Estimates

The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles (U.S. GAAP) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant changes include fair value measurement of investment securities available-for-sale and assessment for impairment of certain investment securities, reserve for loan and lease losses, valuation of goodwill and other intangible assets, mortgage servicing rights, deferred tax assets and liabilities, benefit plans and stock-based compensation expense.

Interest-earning Deposits with Other Banks

Interest-earning deposits with other banks consist of deposit accounts with other financial institutions generally having maturities of three months or less.

Investment Securities

Securities are classified as investment securities held-to-maturity and carried at amortized cost if management has the positive intent and ability to hold the securities to maturity. Securities purchased with the intention of recognizing short-term profits are placed in the trading account and are carried at fair value. The Corporation did not have any trading account securities at December 31, 2015 or 2014. Securities not classified as held-to-maturity or trading are designated securities available-for-sale and carried at fair value with unrealized gains and losses reflected in other comprehensive income, net of estimated income taxes. Realized gains and losses on the sale of investment securities are recognized using the specific identification method and are included in the consolidated statements of income. The amortization of premiums and accretion of discounts are included in interest income and calculated using the level yield method.

Management evaluates debt securities, which are comprised of U.S. government, government sponsored agencies, municipalities, corporate bonds and other issuers, for other-than-temporary impairment by considering the current economic conditions, the length of time and the extent to which the fair value has been less than cost, market interest rates and the bond rating of each security. All of the debt securities are rated as investment grade and management believes that it will not incur any losses. The unrealized losses on the Corporation’s investments in debt securities are temporary in nature since they are primarily related to market interest rates and are not related to the underlying credit quality of the issuers. The Corporation does not have the intent to sell the debt securities and believes it is more likely than not, that it will not have to sell the securities before recovery of their cost basis. The credit portion of any loss on debt securities is recognized through earnings and the noncredit portion of any loss related to debt securities that the Corporation does not intend to sell, and it is more likely than not that the Corporation will not be required to sell the securities prior to recovery, is recognized in other comprehensive income, net of tax.

The Corporation evaluates its equity securities for other-than-temporary impairment and recognizes other-than-temporary impairment charges when it has determined that it is probable that the fair value of certain equity securities will not recover to the Corporation’s cost basis in the individual securities within a reasonable period of time due to a decline in the financial stability of the underlying companies. Management evaluates the near-term prospects of the issuers in relation to the severity and duration of the impairment. The Corporation has the intent and ability to hold these securities until recovery of the Corporation’s cost basis occurs.

Loans and Leases

Loans and leases are stated at the principal amount less net deferred fees and unearned discount. Interest income on commercial loans, real estate loans excluding residential real estate loans, and consumer loans is recorded on the outstanding balance method, using actual interest rates applied to daily principal balances. Interest on residential real estate loans is recorded based on the outstanding balance using the actual interest rate based upon a monthly interest calculation. Loan commitments are made to accommodate the financial needs of the customers. These commitments represent off-balance sheet items that are unfunded. Accrual of interest income on loans and leases ceases when collectability of interest and/or principal is questionable. If it is determined that the collection of interest previously accrued is uncertain, such accrual is reversed and charged to current earnings. Loans and leases are considered past due based upon failure to comply with contractual terms.

A loan or lease is typically classified as nonaccrual when the contractual payment of principal or interest has become 90 days past due or management has serious doubts about the further collectability of principal or interest, even though the loan or lease is currently performing. When a loan or lease, including a loan or lease that is impaired, is classified as nonaccrual, the accrual of interest on such a loan or lease is discontinued. A loan or lease may remain on accrual status if it is in the process of collection and is either guaranteed or well secured. When a loan or lease is placed on nonaccrual status, unpaid interest credited to income is reversed. Interest payments received on nonaccrual loans and leases are either applied against principal or reported as interest income, according to management’s judgment as to the collectability of principal. Loans and leases are usually restored to accrual status when the obligation is brought current, has performed in accordance with the contractual terms for a reasonable period of time, and the ultimate collectability of the total contractual principal and interest is no longer in doubt. A loan or lease is considered impaired when, based on current information and events, it is probable that the Corporation will be unable to collect all amounts due, including principal and interest, according to the contractual terms of the loan agreement. Interest on impaired loans and leases, which are not classified as nonaccrual, is recognized on the accrual basis.

Loan and Lease Fees

Fees collected upon loan or lease origination and certain direct costs of originating loans and leases are deferred and recognized over the contractual lives of the related loans and leases as yield adjustments using the interest method. Upon prepayment or other disposition of the underlying loans and leases before their contractual maturities, any associated unearned fees or unamortized costs are recognized.

Reserve for Loan and Lease Losses

The reserve for loan and lease losses is maintained at a level that management believes is appropriate to absorb known and inherent losses in the loan and lease portfolio. Management’s methodology to determine the adequacy of and the additions to the reserve considers specific credit reviews, past loan and lease loss experience, current economic conditions and trends, and the volume, growth, and composition of the loan portfolio.

The reserve for loan and lease loss analysis takes into consideration the growth of the loan and lease portfolio, the status of past-due loans and leases, current economic conditions, various types of lending activity, policies, real estate and other loan commitments, and significant changes in charge-off activity. Impaired loans, including nonaccrual loans and leases, troubled debt restructured loans and other accruing impaired loans are evaluated individually. All other loans and leases are evaluated as pools. Based on historical loss experience and qualitative factors, loss factors are determined giving consideration to the areas noted in the first paragraph and applied to the pooled loan and lease categories to develop the general or allocated portion of the reserve.

The reserve for loan and lease losses is determined at the end of each quarter, and more frequently for management review purposes. Calculating the Corporation's reserve for loan and lease losses begins with the Bank's loan portfolio utilizing historical loss data as a starting point, while evaluating the impact of environmental factors in a quantitative manner as they relate to the collectability of outstanding loan obligations. The Corporation utilizes a rolling eight-quarter migration analysis and loss emergence period analysis to determine the annualized net expected loan loss experience.

Each quarter, the conditions that exist within the look-back period are compared to current conditions to support a conclusion as to which qualitative adjustments are (or are not) deemed necessary for each loan portfolio segment. These factors are evaluated subjectively based on management's experience and supported by the Corporation's defined analytical metrics/drivers relative to the historical look-back period. Factors include, but are not limited to, asset quality trends, portfolio growth trends, changes in lending policies and management, economic trends, concentrations of credit risk and the impact of collateral dependent lending.

The reserve for loan and lease losses is based on management’s evaluation of the loan and lease portfolio under current economic conditions and such other factors, which deserve recognition in estimating loan and lease losses. This evaluation is inherently subjective, as it requires estimates including the amounts and timing of future cash flows expected to be received on impaired loans and leases that may be susceptible to significant change. Additions to the reserve arise from the provision for loan and lease losses charged to operations or from the recovery of amounts previously charged off. Loan and lease charge-offs reduce the reserve. Loans and leases are charged off when there has been permanent impairment or when in the opinion of management the full amount of the loan or lease will not be realized. Certain impaired loans are reported at the loan’s observable market price or the fair value of the collateral if the loan is collateral dependent, or for certain impaired loans, at the present value of expected future cash flows using the loan’s initial effective interest rate. For commercial impaired loans which are collateral dependent, the fair value of collateral is based on appraisals performed by qualified licensed appraisers hired by the Corporation less management’s estimated costs to sell. Appraisals are updated annually and obtained more frequently if changes in the property or market conditions warrant. Once an updated appraisal is received, if the fair value less estimated costs to sell is less than the carrying amount of the collateral dependent loan, a charge-off to the reserve for loan and lease losses is recorded for the difference.

The reserve for loan and lease losses consists of an allocated reserve and an unallocated reserve. The allocated reserve is comprised of reserves established on specific loans and leases, and class reserves based on historical loan and lease loss experience and qualitative factors, current trends, and management assessments. The unallocated reserve supports other risk considerations not readily quantifiable through the allocated reserve metrics outlined above, as well as the inherent imprecision of the reserve for loan and lease losses model complexity. These considerations include, but are not limited to, the improving credit risk profile of performing loans individually measured for impairment, less than fully seasoned home equity portfolio metrics and reclassification of loan settlement exposures.

The specific reserve element is based on a regular analysis of impaired commercial and real estate loans. For these loans, the specific reserve established is based on an analysis of related collateral value, cash flow considerations and, if applicable, guarantor capacity.

The class reserve element is determined by an internal loan and lease grading process in conjunction with associated allowance factors. The Corporation revises the class allowance factors whenever necessary, but no less than quarterly, in order to address improving or deteriorating credit quality trends or specific risks associated with a given loan or lease pool classification.

The Corporation maintains a reserve in other liabilities for off-balance sheet credit exposures that currently are unfunded in categories with historical loss experience. In addition, the Bank's primary examiner, as a regular part of their examination process, may require the Bank to increase the level of reserves.

Premises and Equipment

Land is stated at cost, and premises and equipment are stated at cost less accumulated depreciation. Depreciation is computed on the straight-line method and charged to operating expenses over the estimated useful lives of the assets. The estimated useful life for new buildings constructed on land owned is forty years, and for new buildings constructed on leased land, is the lesser of forty years or the lease term including anticipated renewable terms. The useful life of purchased existing buildings is the estimated remaining useful life at the time of the purchase. Land improvements are considered to have estimated useful lives of fifteen years or the lease term including anticipated renewable terms. Furniture, fixtures and equipment have estimated useful lives ranging from three to ten years.

Goodwill and Other Intangible Assets

The Corporation accounts for its acquisitions using the purchase accounting method. Purchase accounting requires the total purchase price to be allocated to the estimated fair values of assets acquired and liabilities assumed, including certain intangible assets that must be recognized. Typically, this allocation results in the purchase price exceeding the fair value of net assets acquired, which is recorded as goodwill. Core deposit intangibles are a measure of the value of checking, money market and savings deposits acquired in business combinations accounted for under the purchase method. Core deposit intangibles and other identified intangibles with finite useful lives are amortized using the sum of the year’s digits over their estimated useful lives of up to fifteen years. Customer related intangibles are amortized over their estimated useful lives of five to twelve years. Covenants not to compete are amortized over their three to five-year contractual lives. The Corporation completes a goodwill analysis at least on an annual basis or more often if events and circumstances indicate that there may be impairment. The Corporation also completes an impairment test for other intangible assets on an annual basis or more often if events and circumstances indicate a possible impairment. There can be no assurance that future impairment analyses will not result in a charge to earnings.

Mortgage servicing rights are recognized as separate assets when mortgage loans are sold and the servicing rights are retained. Capitalized mortgage servicing rights are reported in other intangible assets on the consolidated balance sheets and are amortized into noninterest income in proportion to, and over the period of, the estimated future net servicing period of the underlying mortgage loans. Mortgage servicing rights are evaluated for impairment, on a quarterly basis, based upon the fair value of the servicing rights as compared to amortized cost. The Corporation estimates the fair value of mortgage servicing rights using discounted cash flow models that calculate the present value of estimated future net servicing income. The model uses readily available prepayment speed assumptions for the current interest rates of the portfolios serviced. Mortgage servicing rights are carried at the lower of amortized cost or estimated fair value. Impairment is recognized through a valuation allowance, to the extent that fair value is less than the unamortized capitalized amount.

Bank Owned Life Insurance

The Corporation carries bank owned life insurance at the net cash surrender value of the policies. Changes in the net cash surrender value of these policies are reflected in noninterest income. Proceeds from and purchases of bank owned life insurance are reflected in the consolidated statements of cash flows under investing activities. The Corporation recognizes a liability for the future death benefit for certain endorsement split-dollar life insurance arrangements that provide an employee with a death benefit in a postretirement/termination period.

Other Real Estate Owned

Other real estate owned represents properties acquired through customers’ loan defaults and is included in other assets. The real estate is stated at an amount equal to the loan balance prior to foreclosure, plus costs incurred for improvements to the property, but no more than the fair value of the property, less estimated costs to sell. Any write-down, at or prior to the dates the real estate is considered foreclosed, is charged to the allowance for loan losses. Subsequent write-downs and any gain or loss upon the sale of real estate owned is recorded in other noninterest income. Expenses incurred in connection with holding such assets are recorded in other noninterest expense.

Derivative Financial Instruments

The Corporation recognizes all derivative financial instruments on its balance sheet at fair value. Derivatives that are not hedges must be adjusted to fair value through income. If a derivative is a hedge, depending on the nature of the hedge, changes in the fair value of the derivative are either offset against the change in fair value of the hedged assets, liabilities, or firm commitments through earnings, or recognized in other comprehensive income until the underlying forecasted transaction is recognized in earnings. The ineffective portion of a derivative's change in fair value is recognized in earnings immediately. To determine fair value, the Corporation uses third party pricing models that incorporate assumptions about market conditions and risks that are current at the reporting date.

The Corporation may use interest-rate swap agreements to modify interest rate characteristics from variable to fixed or fixed to variable in order to reduce the impact of interest rate changes on future net interest income. The Corporation accounts for its interest-rate swap contracts in cash flow hedging relationships by establishing and documenting the effectiveness of the instrument in offsetting the change in cash flows of assets or liabilities that are being hedged. To determine effectiveness, the Corporation performs an analysis to identify if changes in fair value of the derivative correlate to the equivalent changes in the forecasted interest receipts related to a specified hedged item. Recorded amounts related to interest-rate swaps are included in other assets or liabilities. Changes in the fair value of derivative instruments designated as hedges of future cash flows are recognized in accumulated other comprehensive income until the underlying forecasted transactions occur, at which time the deferred gains and losses are recognized in earnings. The change in fair value of the ineffective part of the instrument would be charged to earnings, potentially causing material fluctuations in reported earnings in the period of the change relative to comparable periods. In a fair value hedge, the fair values of the interest rate swap agreements and changes in the fair values of the hedged items are recorded in the Corporation’s consolidated balance sheet with the corresponding gain or loss being recognized in the consolidated statement of income. The difference between changes in the fair values of interest rate swap agreements and the hedged items represents hedge ineffectiveness and is recorded in net interest income in the consolidated statement of income. The Corporation performs an assessment, both at the inception of the hedge and quarterly thereafter, to determine whether these derivatives are highly effective in offsetting changes in the value of the hedged items.

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 sale of mortgage loans to third-party investors to hedge the effect of changes in interest rates on the value of the interest rate locks. Forward loan sale commitments may also be in the form of commitments to sell individual mortgage loans at a fixed price at a future date. Both the interest rate locks and the forward loan sale commitments are accounted for as derivatives and carried at fair value, determined as the amount that would be necessary to settle each derivative financial instrument at the balance sheet date. Gross derivative assets and liabilities are recorded within other assets and other liabilities on the consolidated balance sheets, with changes in fair value during the period recorded within the net gain on mortgage banking activities on the consolidated statements of income.

Federal Home Loan Bank Stock, Federal Reserve Bank Stock and Certain Other Investments without Readily Determinable Fair Values

Federal Home Loan Bank stock, Federal Reserve Bank stock and certain other investments without readily determinable fair values are classified as other assets on the consolidated balance sheets. These investments are carried at cost and evaluated for impairment periodically or if events or circumstances indicate that there may be impairment.

Income Taxes

There are two components of income tax expense: current and deferred. Current income tax expense approximates cash to be paid or refunded for taxes for the applicable period. Deferred income taxes are provided for temporary differences between amounts reported for financial statement and tax purposes. Deferred income taxes are computed using the asset and liability method, such that deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between financial reporting amounts and the tax basis of existing assets and liabilities based on currently enacted tax laws and tax rates in effect for the periods in which the differences are expected to reverse. Deferred tax assets are subject to management’s judgment based upon available evidence that future realizations are “more likely than not.” If management determines that the Corporation is not more likely than not, to realize some or all of the net deferred tax asset in the future, a charge to income tax expense may be required to reduce the value of the net deferred tax asset to the expected realizable value. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized. Penalties are recorded in noninterest expense in the year they are assessed and paid and are treated as a non-deductible expense for tax purposes. Interest is recorded in noninterest expense in the year it is assessed and paid and is treated as a deductible expense for tax purposes.

Retirement Plans and Other Postretirement Benefits

Substantially all employees who were hired before December 8, 2009 are covered by a noncontributory retirement plan. Effective December 31, 2009, the benefits previously accrued under the noncontributory retirement plan were frozen and the plan was amended and converted to a cash balance plan, with participants not losing any pension benefits already earned in the plan. Prior to the cash balance plan conversion effective December 31, 2009, the plan provided benefits based on a formula of each participant’s final average pay. Future benefits under the cash balance plan accrue by crediting participants annually with an amount equal to a percentage of earnings in that year based on years of credited service as defined in the plan. Employees hired on or after December 8, 2009 are not eligible to participate in the noncontributory retirement plan. The Corporation also provides supplemental executive retirement benefits, a portion of which is in excess of limits imposed on qualified plans by federal tax law; these plans are non-qualified benefit plans. These non-qualified benefit plans are not offered to new participants; all current participants are now retired. The Corporation provides certain postretirement healthcare and life insurance benefits for retired employees. The Corporation’s measurement date for plan assets and obligation is fiscal year-end. The Corporation recognizes on its consolidated balance sheet the funded status of its defined pension plans and changes in the funded status of the plan in the year in which the changes occur. An under-funded position would create a liability and an over-funded position would create an asset, with a correlating deferred tax asset or liability. The net impact would be an adjustment to equity as accumulated other comprehensive income (loss). The Corporation recognizes as a component of other comprehensive income (loss), net of tax, the actuarial gains and losses and the prior service costs and credits that arise during the period.

The Corporation sponsors a 401(k) deferred salary savings plan, which is a qualified defined contribution plan, and which covers all employees of the Corporation and its subsidiaries, and provides that the Corporation make matching contributions as defined by the plan.

The Corporation sponsors a Supplemental Non-Qualified Pension Plan (SNQPP) which was established in 1981 for employees who have served for several years, with ability and distinction, in one of the primary policy-making senior level positions in the Corporation. The SNQPP was established prior to the existence of a 401(k) deferred salary savings, employee stock purchase and long-term incentive plans and therefore is not offered to new participants; all current participants are now retired. These non-qualified plans are accounted for under guidance for deferred compensation arrangements.

Stock-Based Compensation

The fair value of share based awards is recognized as compensation expense over the vesting period based on the grant-date fair value of the awards. The Corporation uses the Black-Scholes Model to estimate the fair value of each option on the date of grant. The Black-Scholes Model estimates the fair value of employee stock options using a pricing model which takes into consideration the exercise price of the option, the expected life of the option, the current market price and its expected volatility, the expected dividends on the stock and the current risk-free interest rate for the expected life of the option. The Corporation grants stock options to employees with an exercise price equal to the fair value of the shares at the date of grant. The Corporation grants both fixed and variable (performance-based) restricted stock. The performance-based restricted stock awards vest based upon the Corporation’s performance against selected peers with respect to certain financial measures over a three-year period. The fair value of fixed restricted stock is equivalent to the fair value on the date of grant and is amortized over the vesting period. The fair value of the performance-based restricted stock is equivalent to the fair value on the date of grant and is amortized over the vesting period adjusted for a probability factor of achieving the performance goals.

Dividend Reinvestment and Employee Stock Purchase Plans

The Univest Dividend Reinvestment Plan allows for the issuance of 1,968,750 shares of common stock. During 2015 and 2014, 87,946 and 82,922 shares, respectively, were issued under the dividend reinvestment plan, with 464,235 shares available for future purchase at December 31, 2015.

The 1996 Employee Stock Purchase Plan allows for the issuance of 984,375 shares of common stock. Employees may elect to make contributions to the plan in an aggregate amount not less than 2% or more than 10% of such employee’s total compensation. These contributions are then used to purchase stock during an offering period determined by the Corporation’s Employee Stock Purchase Plan Committee. The purchase price of the stock is 90% of the closing sale price on the last trading day of each quarter. Compensation expense is recognized as the discount is greater than 5% of the fair value. During 2015 and 2014, 26,440 and 23,271 shares, respectively, were issued under the employee stock purchase plan, with 706,184 shares available for future purchase at December 31, 2015.

Marketing and Advertising Costs

The Corporation’s accounting policy is to expense marketing and advertising costs as incurred, when the advertisement first takes place, or over the expected useful life of the related asset, as would be the case with billboards.

Statement of Cash Flows

The Corporation has defined those items included in the caption “Cash and due from banks” as cash and cash equivalents.

Trust Assets

Assets held by the Corporation in a fiduciary or agency capacity for its customers are not included in the consolidated financial statements since such items are not assets of the Corporation.

Earnings per Share

The Corporation uses the two-class method to calculate earnings per share as the unvested restricted stock issued under the Corporation's equity incentive plans are participating shares with nonforfeitable rights to dividends. Under the two-class method, earnings per common share are computed by dividing the sum of distributed earnings to common shareholders and undistributed earnings allocated to common shareholders by the weighted average number of common shares outstanding for the period. In applying the two-class method, undistributed earnings are allocated to both common shares and participating securities based on the number of weighted average shares outstanding during the period. Diluted earnings per share reflect additional common shares that would have been outstanding if options on common shares had been exercised, as well as any adjustment to income that would result from the assumed issuance. Potential common shares that may be issued by the Corporation relate solely to outstanding stock options, and are determined using the treasury stock method. The effects of options to issue common stock are excluded from the computation of diluted earnings per share in periods in which the effect would be antidilutive.

Recent Accounting Pronouncements

In September 2015, the Financial Accounting Standards Board (FASB) issued an Accounting Standards Update (ASU) simplifying the accounting for measurement-period adjustments related to business combinations. The ASU eliminates the requirement to retrospectively adjust the financial statements for measurement-period adjustments that occur in periods after a business combination is consummated. Under this ASU, measurement-period adjustments are calculated as if they were known at the acquisition date, but are recognized in the reporting period in which they are determined. The ASU requires additional disclosures about the impact on current period income statement line items of adjustments that would have been recognized in prior periods if prior period information had been revised. The amendments in this ASU are effective for financial statements of public businesses issued for fiscal years and interim periods within those years beginning after December 15, 2015, or January 1, 2016 for the Corporation. The adoption of this ASU will not have any impact on the Corporation's financial statements.

In April 2015, the FASB issued an ASU simplifying the presentation of debt issuance costs. The ASU requires that debt issuance costs related to a recognized debt liability shall be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The costs will continue to be amortized to interest expense using the effective interest method. The ASU is effective for financial statements of public business issued for fiscal years beginning after December 15, 2015, or January 1, 2016 for the Corporation. The adoption of ASU will not impact the Corporation's balance sheet presentation as the Corporation currently follows this presentation consistent with the guidance in FASB Concepts Statement No. 6.

In May 2014, the FASB issued an ASU regarding revenue from contracts with customers which clarifies the principles for recognizing revenue and develops a common standard for U.S. GAAP and International Financial Reporting Standards. The ASU establishes a core principle that would require an entity to identify the contract(s) with a customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract and recognize revenue when (or as) the entity satisfies a performance obligation. The ASU provides for improved disclosure requirements that require entities to disclose sufficient information that enables users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. In August 2015, the FASB issued an ASU deferring the original effective date of this guidance by one year. This guidance is now effective for fiscal years and interim periods within those years beginning after December 15, 2017, or January 1, 2018 for the Corporation. The Corporation is in the process of evaluating the impact of the adoption of this guidance on the Corporation's financial statements; however, it is anticipated the impact will be only related to timing.

In January 2014, the FASB issued an ASU regarding reclassification of residential real estate collateralized consumer mortgage loans upon foreclosure. The ASU clarifies that when an in-substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Additionally, the amendments require interim and annual disclosure of both (1) the amount of foreclosed residential real estate property held by the creditor and (2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The ASU was issued to eliminate diversity in practice on this topic. The amendment is effective for fiscal years and interim periods within those years beginning after December 15, 2014, or January 1, 2015 for the Corporation. The adoption of this guidance did not have a material impact on the Corporation's financial statements but resulted in expanded disclosures effective March 31, 2015, which are included in Note 5, “Loans and Leases.”