| **Fair Values of Assets and Liabilities** | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                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| **Fair Value Disclosures [Abstract]**     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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| Fair Values of Assets and Liabilities     | Fair Values of Assets and LiabilitiesFASB ASC Topic 820, “Fair Value Measurements and Disclosures”, requires disclosures for non-financial assets and non-financial liabilities, except for items that are recognized or disclosed at fair value in the financial statements on a recurring basis (at least annually). All non-financial assets are included either as a separate line item on the Condensed Consolidated Statements of Financial Condition or in the “Other assets” category of the Condensed Consolidated Statements of Financial Condition. Currently, First Commonwealth does not have any non-financial liabilities to disclose.FASB ASC Topic 825, “Financial Instruments”, permits entities to irrevocably elect to measure select financial instruments and certain other items at fair value. The unrealized gains and losses are required to be included in earnings each reporting period for the items that fair value measurement is elected. First Commonwealth has elected not to measure any existing financial instruments at fair value under FASB ASC Topic 825; however, in the future we may elect to adopt this guidance for select financial instruments. In accordance with FASB ASC Topic 820, First Commonwealth groups financial assets and financial liabilities measured at fair value in three levels based on the principal markets in which the assets and liabilities are transacted and the observability of the data points used to determine fair value. These levels are:•Level 1 – Valuations for assets and liabilities traded in active exchange markets, such as the New York Stock Exchange (“NYSE”). Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 1 securities include equity holdings comprised of publicly traded bank stocks which were priced using quoted market prices.•Level 2 – Valuations for assets and liabilities traded in less active dealer or broker markets. Valuations are obtained for identical or comparable assets or liabilities from alternative pricing sources with reasonable levels of price transparency. Level 2 includes Obligations of U.S. Government securities issued by Agencies and Sponsored Enterprises, Obligations of States and Political Subdivisions, corporate securities, FHLB stock, loans held for sale, interest rate derivatives (including interest rate caps, interest rate swaps and risk participation agreements), certain other real estate owned and certain impaired loans.Level 2 investment securities are valued by a recognized third party pricing service using observable inputs. The model used by the pricing service varies by asset class and incorporates available market, trade and bid information as well as cash flow information when applicable. Because many fixed-income investment securities do not trade on a daily basis, the model uses available information such as benchmark yield curves, benchmarking of like investment securities, sector groupings and matrix pricing. The model will also use processes such as an option adjusted spread to assess the impact of interest rates and to develop prepayment estimates. Market inputs normally used in the pricing model include benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data including market research publications.Management validates the market values provided by the third party service by having another recognized pricing service price 100% of the securities on an annual basis and a random sample of securities each quarter, monthly monitoring of variances from prior period pricing and, on a monthly basis, evaluating pricing changes compared to expectations based on changes in the financial markets.Other investments recorded in the Condensed Consolidated Statements of Financial Condition are comprised of FHLB stock whose estimated fair value is based on its par value. Additional information on FHLB stock is provided in Note 7, “Impairment of Investment Securities.” Loans held for sale include residential mortgage loans originated for sale in the secondary mortgage market. The estimated fair value for these loans was determined on the basis of rates obtained in the respective secondary market.Interest rate derivatives are reported at an estimated fair value utilizing Level 2 inputs and are included in other assets and other liabilities, and consist of interest rate swaps where there is no significant deterioration in the counterparties' (loan customers') credit risk since origination of the interest rate swap as well as interest rate caps and risk participation agreements. First Commonwealth values its interest rate swap and cap positions using a yield curve by taking market prices/rates for an appropriate set of instruments. The set of instruments currently used to determine the U.S. Dollar yield curve includes cash LIBOR rates from overnight to three months, Eurodollar futures contracts and swap rates from three years to thirty years. These yield curves determine the valuations of interest rate swaps. Interest rate derivatives are further described in Note 11, “Derivatives.”For purposes of potential valuation adjustments to our derivative positions, First Commonwealth evaluates the credit risk of its counterparties as well as our own credit risk. Accordingly, we have considered factors such as the likelihood of default, expected loss given default, net exposures and remaining contractual life, among other things, in determining if any fair value adjustments related to credit risk are required. We review our counterparty exposure quarterly, and when necessary, appropriate adjustments are made to reflect the exposure.We also utilize this approach to estimate our own credit risk on derivative liability positions. In 2015, we have not realized any losses due to a counterparty's inability to pay any uncollateralized positions.The estimated fair value for other real estate owned included in Level 2 is determined by either an independent market-based appraisal less estimated costs to sell or an executed sales agreement.•Level 3 – Valuations for assets and liabilities that are derived from other valuation methodologies, including option pricing models, discounted cash flow models and similar techniques, and not based on market exchange, dealer or broker traded transactions. If the inputs used to provide the valuation are unobservable and/or there is very little, if any, market activity for the security or similar securities, the securities would be considered Level 3 securities. Level 3 valuations incorporate certain assumptions and projections in determining the fair value assigned to such assets or liabilities. The assets included in Level 3 are pooled trust preferred collateralized debt obligations, non-marketable equity investments, certain interest rate derivatives, certain other real estate owned and certain impaired loans.Our pooled trust preferred collateralized debt obligations are collateralized by the trust preferred securities of individual banks, thrifts and bank holding companies in the United States. There has been little or no active trading in these securities since 2009; therefore, it is more appropriate to determine estimated fair value using a discounted cash flow analysis. Detail on our process for determining the appropriate cash flows for this analysis is provided in Note 7, “Impairment of Investment Securities.” The discount rate applied to the cash flows is determined by evaluating the current market yields for comparable corporate and structured credit products along with an evaluation of the risks associated with the cash flows of the comparable security. Due to the fact that there is no active market for the pooled trust preferred collateralized debt obligations, one key reference point is the market yield for the single issue trust preferred securities issued by banks and thrifts for which there is more activity than for the pooled securities. Adjustments are then made to reflect the credit and structural differences between these two security types.Management validates the fair value of the pooled trust preferred collateralized debt obligations by monitoring the performance of the underlying collateral, discussing the discount rate, cash flow assumptions and general market trends with the specialized third party and confirming changes in the underlying collateral to the trustee reports. Management’s monitoring of the underlying collateral includes deferrals of interest payments, payment defaults, cures of previously deferred interest payments, any regulatory filings or actions and general news related to the underlying collateral. Management also evaluates fair value changes compared to expectations based on changes in the interest rates used in determining the discount rate and general financial markets.The estimated fair value of the non-marketable equity investments included in Level 3 is based on par value.For interest rate derivatives included in Level 3, the fair value incorporates credit risk by considering such factors as likelihood of default and expected loss given default based on the credit quality of the underlying counterparties (loan customers).In accordance with ASU 2011-4, the following table provides information related to quantitative inputs and assumptions used in Level 3 fair value measurements. Fair Value (dollarsin thousands) ValuationTechnique Unobservable Inputs Range /(weighted average)Pooled Trust Preferred Securities$35,779 Discounted Cash Flow Probability of default 0% - 100% (13.72%)     Prepayment rates 0% - 73.52% (5.09%)     Discount rates 5.25% - 12.00% (a)Equities1,920 Par Value N/A N/AImpaired Loans2,903 (b) Reserve study Discount rate 10.00%     Gas per MCF $2.71 - $3.48 (c)     Oil per BBL/d $55.00 (c) 520 (b) Discounted Cash Flow Discount Rate 1.90%Other Real Estate Owned8 Internal Valuation N/A N/A (a)incorporates spread over risk free rate related primarily to credit quality and illiquidity of securities.(b)the remainder of impaired loans valued using Level 3 inputs are not included in this disclosure as the values of those loans are based on bankruptcy agreement documentation.(c)unobservable inputs are defined as follows: MCF - million cubic feet; BBL/d - barrels per day.The significant unobservable inputs used in the fair value measurement of pooled trust preferred securities are the probability of default, discount rates and prepayment rates. Significant increases in the probability of default or discount rate used would result in a decrease in the estimated fair value of these securities, while decreases in these variables would result in higher fair value measurements. In general, a change in the assumption of probability of default is accompanied by a directionally similar change in the discount rate. In most cases, increases in the prepayment rate assumptions would result in a higher estimated fair value for these securities while decreases would provide for a lower value. The direction of this change is somewhat dependent on the structure of the investment and the amount of the investment tranches senior to our position.The discount rate is the significant unobservable input used in the fair value measurement of impaired loans. Significant increases in this rate would result in a decrease in the estimated fair value of the loans, while a decrease in this rate would result in a higher fair value measurement. Other unobservable inputs in the fair value measurement of impaired loans relate to gas, oil and natural gas prices.  Increases in these prices would result in an increase in the estimated fair value of the loans, while a decrease in these prices would result in a lower fair value measurement.The tables below present the balances of assets and liabilities measured at fair value on a recurring basis: September 30, 2015 Level 1 Level 2 Level 3 Total (dollars in thousands)Obligations of U.S. Government Agencies:       Mortgage-Backed Securities - Residential$— $23,281 $— $23,281Obligations of U.S. Government-Sponsored Enterprises:       Mortgage-Backed Securities - Residential— 824,152 — 824,152Mortgage-Backed Securities - Commercial— 38 — 38Other Government-Sponsored Enterprises— 135,781 — 135,781Obligations of States and Political Subdivisions— 27,449 — 27,449Corporate Securities— 2,333 — 2,333Pooled Trust Preferred Collateralized Debt Obligations— — 35,779 35,779Total Debt Securities— 1,013,034 35,779 1,048,813Equities— — 1,920 1,920Total Securities Available for Sale— 1,013,034 37,699 1,050,733Other Investments— 53,976 — 53,976Loans held for sale— 4,986 — 4,986Other Assets(a)— 16,303 — 16,303Total Assets$— $1,088,299 $37,699 $1,125,998Other Liabilities(a)$— $14,333 $— $14,333Total Liabilities$— $14,333 $— $14,333(a)Hedging and non-hedging interest rate derivatives December 31, 2014 Level 1 Level 2 Level 3 Total (dollars in thousands)Obligations of U.S. Government Agencies:       Mortgage-Backed Securities - Residential$— $25,936 $— $25,936Obligations of U.S. Government-Sponsored Enterprises:       Mortgage-Backed Securities - Residential— 950,881 — 950,881Mortgage-Backed Securities - Commercial— 74 — 74Other Government-Sponsored Enterprises— 267,877 — 267,877Obligations of States and Political Subdivisions— 27,377 — 27,377Corporate Securities— 7,255 — 7,255Pooled Trust Preferred Collateralized Debt Obligations— — 28,999 28,999Total Debt Securities— 1,279,400 28,999 1,308,399Equities— — 1,420 1,420Total Securities Available for Sale— 1,279,400 30,419 1,309,819Other Investments— 44,545 — 44,545Loans Held for Sale— 2,502 — 2,502Other Assets(a)— 11,186 — 11,186Total Assets$— $1,337,633 $30,419 $1,368,052Other Liabilities(a)$— $10,671 $— $10,671Total Liabilities$— $10,671 $— $10,671(a)Hedging and non-hedging interest rate derivativesFor the nine months endedSeptember 30, changes in Level 3 assets and liabilities measured at fair value on a recurring basis are summarized as follows: 2015 Pooled Trust Preferred Collateralized Debt Obligations Equities Total (dollars in thousands)Balance, beginning of period$28,999 $1,420 $30,419Total gains or losses     Included in earnings105 — 105Included in other comprehensive income7,729 — 7,729Purchases, issuances, sales, and settlements     Purchases— 500 500Issuances— — —Sales— — —Settlements(1,054) — (1,054)Transfers into Level 3— — —Balance, end of period$35,779 $1,920 $37,699  2014 Pooled Trust Preferred Collateralized Debt Obligations Equities Loans Held for Sale Total (dollars in thousands)Balance, beginning of period$23,523 $1,420 $— $24,943Total gains or losses       Included in earnings— — 77 77Included in other comprehensive income7,266 — — 7,266Purchases, issuances, sales, and settlements       Purchases— — — —Issuances— — — —Sales— — (3,112) (3,112)Settlements(1,333) — — (1,333)Transfers into Level 3— — 3,035 3,035Balance, end of period$29,456 $1,420 $— $30,876During the nine months endedSeptember 30, 2015 and 2014, there were no transfers between fair value Levels 1 and 2. During the nine months endedSeptember 30, 2015, there were no transfers between fair value Levels 2 and 3. However, $3.0 million of loans were transferred into Level 3 from Level 2 during the nine months endedSeptember 30, 2014 due to the loans being transferred to a held for sale status.  The loans transferred and subsequently sold related to three nonperforming loan relationships for which this was determined to be the appropriate exit strategy.  There were no gains or losses included in earnings for the periods presented that are attributable to the change in realized gains (losses) relating to assets held at September 30, 2015 and 2014.For the three months endedSeptember 30, changes in Level 3 assets and liabilities measured at fair value on a recurring basis are summarized as follows: 2015 Pooled Trust Preferred Collateralized Debt Obligations Equities Total (dollars in thousands)Balance, beginning of period$35,521 $1,920 $37,441Total gains or losses     Included in earnings— — —Included in other comprehensive income258 — 258Purchases, issuances, sales, and settlements     Purchases— — —Issuances— — —Sales— — —Settlements— — —Transfers into Level 3— — —Balance, end of period$35,779 $1,920 $37,699 2014 Pooled Trust Preferred Collateralized Debt Obligations Equities Loans Held for Sale Total (dollars in thousands)Balance, beginning of period$28,154 $1,420 $— 29,574Total gains or losses       Included in earnings— — — —Included in other comprehensive income1,470 — — 1,470Purchases, issuances, sales, and settlements       Purchases— — — —Issuances— — — —Sales— — — —Settlements(168) — — (168)Transfers into Level 3— — — —Balance, end of period$29,456 $1,420 $— $30,876During the three months endedSeptember 30, 2015 and 2014, there were no transfers between fair value Levels 1 and 2.The tables below present the balances of assets measured at fair value on a non-recurring basis at: September 30, 2015 Level 1 Level 2 Level 3 Total (dollars in thousands)Impaired loans$— $26,916 $9,656 $36,572Other real estate owned— 12,386 8 12,394Total Assets$— $39,302 $9,664 $48,966 December 31, 2014 Level 1 Level 2 Level 3 Total (dollars in thousands)Impaired loans$— $34,864 $10,926 $45,790Other real estate owned— 7,828 153 7,981Total Assets$— $42,692 $11,079 $53,771The following losses were realized on the assets measured on a nonrecurring basis: For the Three Months Ended September 30, For the Nine Months Ended September 30, 2015 2014 2015 2014 (dollars in thousands)Impaired loans$(2,838) $456 $(3,532) $(1,291)Other real estate owned(78) (51) (1,205) (1,109)Total losses$(2,916) $405 $(4,737) $(2,400)Impaired loans over $100 thousand are individually reviewed to determine the amount of each loan considered to be at risk of non-collection. The fair value for impaired loans that are collateral based is determined by reviewing real property appraisals, equipment valuations, accounts receivable listings and other financial information. A discounted cash flow analysis is performed to determine fair value for impaired loans when an observable market price or a current appraisal is not available. For real estate secured loans, First Commonwealth’s loan policy requires updated appraisals be obtained at least every twelve months on all impaired loans with balances of $250 thousand and over.  For real estate secured loans with balances under $250 thousand, we rely on broker price opinions. For non-real estate secured assets, the Company normally relies on third party valuations specific to the collateral type.The fair value for other real estate owned determined by either an independent market-based appraisal less estimated costs to sell or an executed sales agreement is classified as Level 2. The fair value for other real estate owned determined using an internal valuation is classified as Level 3.  Other real estate owned has a book cost of $10.5 million as of September 30, 2015 and consisted primarily of commercial real estate properties in Pennsylvania. We review whether events and circumstances subsequent to a transfer to other real estate owned have occurred that indicate the balance of those assets may not be recoverable. If events and circumstances indicate further impairment we will record a charge to the extent that the carrying value of the assets exceed their fair values, less estimated cost to sell, as determined by valuation techniques appropriate in the circumstances.Certain other assets and liabilities, including goodwill and core deposit intangibles, are measured at fair value on a non-recurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments only in certain circumstances. Additional information related to goodwill is provided in Note 12, “Goodwill.” There were no other assets or liabilities measured at fair value on a non-recurring basis during the nine months endedSeptember 30, 2015.FASB ASC 825-10, “Transition Related to FSP FAS 107-1” and APB 28-1, “Interim Disclosures about Fair Value of Financial Instruments,” requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are as discussed above. The methodologies for other financial assets and financial liabilities are discussed below.Cash and due from banks and interest-bearing bank deposits: The carrying amounts for cash and due from banks and interest-bearing bank deposits approximate the estimated fair values of such assets.Securities: Fair values for securities available for sale and held to maturity are based on quoted market prices, if available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments. Pooled trust preferred collateralized debt obligations values are derived from other valuation methodologies, including option pricing models, discounted cash flow models and similar techniques, and not based on market exchange, dealer or broker traded transactions. These valuations incorporate certain assumptions and projections in determining the fair value assigned to each instrument. The carrying value of other investments, which includes FHLB stock, is considered a reasonable estimate of fair value.Loans: The fair values of all loans are estimated by discounting the estimated future cash flows using interest rates currently offered for loans with similar terms to borrowers of similar credit quality adjusted for past due and nonperforming loans, which is not an exit price under FASB ASC Topic 820, “Fair Value Measurements and Disclosures.”Loans Held for Sale: The estimated fair value of loans held for sale is based on market bids obtained from potential buyers.Off-balance sheet instruments: Many of First Commonwealth’s off-balance sheet instruments, primarily loan commitments and standby letters of credit, are expected to expire without being drawn upon; therefore, the commitment amounts do not necessarily represent future cash requirements. FASB ASC Topic 460, “Guarantees” clarified that a guarantor is required to recognize, at the inception of a guarantee, a liability for the fair value of the obligation undertaken in issuing the guarantee. The carrying amount and fair value for standby letters of credit was $0.2 million at September 30, 2015 and December 31, 2014, respectively. See Note 5, “Commitments and Contingent Liabilities,” for additional information.Deposit liabilities:  The estimated fair value of demand deposits, savings accounts and money market deposits is the amount payable on demand at the reporting date because of the customers’ ability to withdraw funds immediately. The carrying value of variable rate time deposit accounts and certificates of deposit approximate their fair values at the report date. Also, fair values of fixed rate time deposits for both periods are estimated by discounting the future cash flows using interest rates currently being offered and a schedule of aggregated expected maturities.Short-term borrowings: The fair values of borrowings from the FHLB were estimated based on the estimated incremental borrowing rate for similar types of borrowings. The carrying amounts of other short-term borrowings such as federal funds purchased and securities sold under agreement to repurchase were used to approximate fair value due to the short-term nature of the borrowings.Long-term debt and subordinated debt: The fair value of long-term debt and subordinated debt is estimated by discounting the future cash flows using First Commonwealth’s estimate of the current market rate for similar types of borrowing arrangements or an announced redemption price.The following table presents carrying amounts and fair values of First Commonwealth’s financial instruments: September 30, 2015   Fair Value Measurements Using: CarryingAmount Total Level 1 Level 2 Level 3 (dollars in thousands)Financial assets         Cash and due from banks$69,235 $69,235 $69,235 $— $—Interest-bearing deposits3,529 3,529 3,529 — —Securities available for sale1,050,733 1,050,733 — 1,013,034 37,699Securities held to maturity154,035 154,837 — 154,837 —Other investments53,976 53,976 — 53,976 —Loans held for sale4,986 4,986 — 4,986 —Loans4,575,735 4,596,889 — 26,916 4,569,973Financial liabilities         Deposits4,161,490 4,164,660 — 4,164,660 —Short-term borrowings1,329,794 1,329,920 — 1,329,920 —Subordinated debt72,167 62,227 — — 62,227Long-term debt39,052 39,704 — 39,704 — December 31, 2014   Fair Value Measurements Using: CarryingAmount Total Level 1 Level 2 Level 3 (dollars in thousands)Financial assets         Cash and due from banks$72,276 $72,276 $72,276 $— $—Interest-bearing deposits2,262 2,262 2,262 — —Securities available for sale1,309,819 1,309,819 — 1,279,400 30,419Other investments44,545 44,545 — 44,545 —Loans held for sale2,502 2,502 — 2,502 —Loans4,457,308 4,439,766 — 34,864 4,404,902Financial liabilities         Deposits4,315,511 4,319,997 — 4,319,997 —Short-term borrowings1,105,876 1,105,867 — 1,105,867 —Subordinated debt72,167 62,815 — — 62,815Long-term debt89,459 90,319 — 90,319 — |

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No definition available.
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| - Definition
The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.
+ References
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