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Basis Of Presentation And Summary Of Significant Accounting Policies (Policy) | 3 Months Ended
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Mar. 31, 2014
Basis of Presentation And Summary Of Significant Accounting Policies [Abstract] |
Nature Of Operations | Nature of Operations Financial Institutions, Inc., is a financial holding company organized in 1931 under the laws of New York State ("New York" or "NYS"). Through its wholly-owned New York chartered banking subsidiary, Five Star Bank, Financial Institutions, Inc. offers a broad array of deposit, lending and other financial services to individuals, municipalities and businesses in Western and Central New York. The Company has also expanded its indirect lending network to include relationships with franchised automobile dealers in the Capital District of New York and Northern Pennsylvania. References to "the Company" mean the consolidated reporting entities and references to "the Bank" mean Five Star Bank.
Basis Of Presentation | Basis of Presentation The consolidated financial statements include the accounts of Financial Institutions, Inc. and its subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. The accounting and reporting policies conform to U.S. generally accepted accounting principles ("GAAP"). Certain information and footnote disclosures normally included in financial statements prepared in conformity with GAAP have been condensed or omitted pursuant to such rules and regulations. However, in the opinion of management, the accompanying consolidated financial statements reflect all adjustments of a normal and recurring nature necessary for a fair presentation of the consolidated statements of financial condition, income, comprehensive income, changes in shareholders' equity and cash flows for the periods indicated, and contain adequate disclosure to make the information presented not misleading. Prior years' consolidated financial statements are re-classified whenever necessary to conform to the current year's presentation. These consolidated financial statements should be read in conjunction with the Company's 2013 Annual Report on Form 10-K. The results of operations for any interim periods are not necessarily indicative of the results which may be expected for the entire year.
Subsequent Events | Subsequent Events The Company has evaluated events and transactions for potential recognition or disclosure through the day the financial statements were issued and determined that there were no subsequent events.
Use Of Estimates | Use of Estimates The preparation of these financial statements in conformity with 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 relate to the determination of the allowance for loan losses, the carrying value of goodwill and deferred tax assets, the valuation and other than temporary impairment ("OTTI") considerations related to the securities portfolio, and assumptions used in the defined benefit pension plan accounting.
Recent Accounting Pronouncements | Recent Accounting Pronouncements In January 2014, the Financial Accounting Standards Board issued Accounting Standards Update ("ASU") No. 2014-04, Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The objective of this guidance is to clarify when an in substance repossession or foreclosure occurs, that is, when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan receivable should be derecognized and the real estate property recognized. ASU No. 2014-04 states that 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, ASU No. 2014-04 requires 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. ASU No. 2014-04 is effective for interim and annual reporting periods beginning after December 15, 2014. The adoption of ASU No. 2014-04 is not expected to have a material impact on the Company's consolidated statements of income and condition.

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- Definition Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). + References No definition available. + Details
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- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6143-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6132-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6061-108592 + Details
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