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Accounting Policies and Basis of Presentation Policies (Policies) | 9 Months Ended
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Sep. 30, 2015
Accounting Policies [Abstract] |
Reclassification, Policy [Policy Text Block] | Reclassifications Prior period financial statements reflect the retrospective application of Accounting Standards Update (ASU) 2014-01, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments Qualified Affordable Housing Projects which was adopted effective in the fourth quarter of 2014 and did not have a material impact on our consolidated financial condition or results of operations. In certain instances other than the retrospective adoption of ASU 2014-01, amounts reported in prior years' consolidated financial statements have been reclassified to conform to the current financial statement presentation. Such reclassifications had no effect on previously reported shareholders' equity or net income.
Use of Estimates, Policy [Policy Text Block] | Use of Estimates in the Preparation of Financial Statements The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates, and different assumptions in the application of these policies could result in material changes in BancShares' consolidated financial position, the consolidated results of its operations or related disclosures. Material estimates that are particularly susceptible to significant change include:
• | Allowance for loan and lease losses
• | Fair value of financial instruments, including acquired assets and assumed liabilities
• | Pension plan assumptions
• | Cash flow estimates on purchased credit-impaired loans
• | Receivable from and payable to the FDIC for loss share agreements
• | Income tax assets, liabilities and expense
New Accounting Pronouncements, Policy [Policy Text Block] | Recently Adopted Accounting Pronouncements Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU) 2015-10, Technical Corrections and Improvements The amendments in this ASU represent changes to clarify the Codification, correct unintended application of guidance and make minor improvements to the Codification that are not expected to have a significant effect on current accounting practice or create a significant administrative cost to most entities. Additionally, some of the amendments will make the Codification easier to understand and easier to apply by eliminating inconsistencies, providing needed clarifications, and improving the presentation of guidance in the Codification. The transition guidance varies based on the amendments in this ASU. The amendments in this ASU that require transition guidance are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period. All other amendments were effective upon issuance. We adopted the amendments effective second quarter of 2015. The adoption did not have an impact on our consolidated financial position or consolidated results of operations. FASB ASU 2015-08, Business Combinations (Topic 805): Pushdown Accounting - Amendments to Securities and Exchange Commission (SEC) Paragraphs Pursuant to Staff Accounting Bulletin No. 115 The amendments in this ASU remove references to SEC Staff Accounting Bulletin (SAB) Topic 5.J as the SEC staff previously rescinded its guidance with the issuance of SAB No. 115 when the FASB issued its own pushdown accounting guidance in ASU 2014-17, an amendment we adopted effective fourth quarter of 2014. We adopted the amendments in ASU 2015-08 effective second quarter of 2015. The adoption did not have an impact on our consolidated financial position or consolidated results of operations. FASB ASU 2014-14, Receivables - Troubled Debt Restructurings by Creditors (Subtopic 310-40): Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure This ASU requires a reporting entity to derecognize a mortgage loan and recognize a separate other receivable upon foreclosure if the following conditions are met: the loan has a government guarantee that is not separable from the loan before foreclosure; at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under that claim and at the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. Upon foreclosure, the separate other receivable should be measured based on the amount of the loan balance expected to be recovered from the guarantor. The amendments in this ASU were effective for public business entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. We adopted this guidance effective first quarter of 2015. The initial adoption did not have any effect on our consolidated financial position or consolidated results of operations. FASB ASU 2014-11, Transfers and Servicing (Topic 860) This ASU aligns the accounting for repurchase-to-maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements. Going forward, these transactions would all be accounted for as secured borrowings. The guidance eliminates sale accounting for repurchase-to-maturity transactions and supersedes the guidance under which a transfer of a financial asset and a contemporaneous repurchase financing could be accounted for on a combined basis as a forward agreement, which has resulted in outcomes referred to as off-balance-sheet accounting. The ASU requires a new disclosure for transactions economically similar to repurchase agreements in which the transferor retains substantially all of the exposure to the economic return on the transferred financial assets throughout the term of the transaction. The ASU also requires expanded disclosures about the nature of collateral pledged in repurchase agreements and similar transactions accounted for as secured borrowings. The accounting changes in this ASU were effective for fiscal years beginning after December 15, 2014. In addition, the disclosures for certain transactions accounted for as a sale were effective for the fiscal period beginning after December 15, 2014, while the disclosures for transactions accounted for as secured borrowings were required to be presented for fiscal periods beginning after December 15, 2014, and interim periods beginning after March 15, 2015. We adopted the guidance effective first quarter of 2015. The initial adoption did not have any effect on our consolidated financial position or consolidated results of operations. The new disclosures required by this ASU are included in Note I. FASB ASU 2014-04, Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40) This ASU clarifies 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, 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 amendments in this ASU were effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. We adopted the guidance effective first quarter of 2015. The initial adoption did not have any effect on our consolidated financial position or consolidated results of operations. The new disclosures required by this ASU are included in Note F. FASB ASU 2014-01, Investments - Equity Method and Joint Ventures (Topic 323) - Accounting for Investments in Qualified Affordable Housing Projects This ASU permits an accounting policy election to account for investments in qualified affordable housing projects (LIHTC) using the proportional amortization method if certain conditions are met. Under the proportional amortization method, the initial cost of the investment is amortized in proportion to the tax credits and other tax benefits received and recognize the net investment performance in the income statement as a component of income tax expense (benefit). For those investments in qualified affordable housing projects not accounted for using the proportional amortization method, the investment should be accounted for as an equity method investment or a cost method investment in accordance with Accounting Standards Codification (ASC) 970-323. The decision to apply the proportional amortization method of accounting will be applied consistently to all qualifying affordable housing project investments rather than a decision to be applied to individual investments. BancShares early adopted the guidance effective in the fourth quarter of 2014. Previously, LIHTC investments were accounted for under the cost or equity method, and the amortization was recorded as a reduction to other noninterest income, with the tax credits and other benefits received recorded as a component of the provision for income taxes. BancShares believes the proportional amortization method better represents the economics of LIHTC investments and provides users with a better understanding of the returns from such investments than the cost or equity method. LIHTC investments were $74.5 million and $57.1 million at September 30, 2015 and December 31, 2014, respectively, and are included in "other assets" on the Consolidated Balance Sheets. The cumulative effect of the retrospective application of the change in amortization method was a $2.4 million decrease to both "other assets" and "retained earnings" on the Consolidated Balance Sheets as of January 1, 2012. Under the new amortization method of accounting, amortization expense is recognized in income tax expense in the Consolidated Statements of Income and is offset by the tax effect of tax losses and tax credits received from the investments. This change resulted in a reclassification of expense previously recorded as a reduction in other noninterest income to income tax expense along with additional amortization recognized under the new method of accounting in the Consolidated Statements of Income. An additional change resulting from the new amortization method of accounting was that a deferred tax asset or liability no longer exists as a result of these investments, thus in the retrospective application of the new method, the removal of the deferred tax asset previously reported as well as the additional amortization of the investments, both recorded in other assets, reflected in the Consolidated Balance Sheets were removed. We do not believe the impact of this change in accounting principle is material. Recently Issued Accounting Pronouncements FASB ASU 2015-03, Interest–Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs This ASU simplifies the presentation of debt issuance costs by requiring that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of debt liability, consistent with debt discounts or premiums. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this update. This ASU is effective for interim and annual periods beginning after December 15, 2015 for public business entities, and is to be applied retrospectively. Early adoption is permitted. We will adopt the guidance effective in the first quarter of 2016 and do not anticipate any impact on our consolidated financial position or consolidated results of operations as a result of adoption. FASB ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis This ASU improves targeted areas of consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. In addition to reducing the number of consolidation models from four to two, the new standard places more emphasis on risk of loss when determining a controlling financial interest, reducing the frequency of the application of related-party guidance when determining a controlling financial interest in a variable interest entity ("VIE"), and changing consolidation conclusions for public and private companies in several industries that typically make use of limited partnerships or VIEs. The amendments in this ASU are effective for periods beginning after December 15, 2015 for public business entities. Early adoption is permitted. We will adopt the guidance effective in the first quarter of 2016 and do not anticipate any significant impact on our consolidated financial position or consolidated results of operations as a result of adoption. FASB ASU 2014-09, Revenue from Contracts with Customers (Topic 606) In May 2014, the FASB issued a standard on the recognition of revenue from contracts with customers with the core principle being for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. The new standard also results in enhanced disclosures about revenue, provides guidance for transactions that were not previously addressed comprehensively and improves guidance for multiple-element arrangements. Per ASU 2015-14, Deferral of the Effective Date, this guidance was deferred and is effective for fiscal periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early adoption is permitted for fiscal periods beginning after December 15, 2016. We are currently evaluating the impact of the new standard and we will adopt during the first quarter of 2018 using one of two retrospective application methods.

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