Accounting Policies and Basis of Presentation	6 Months Ended
Jun. 30, 2013
Accounting Policies [Abstract]
Accounting Policies and Basis of Presentation	Accounting Policies and Basis of Presentation First Citizens BancShares, Inc. (BancShares) is a financial holding company organized under the laws of Delaware and conducts operations through its banking subsidiary, First-Citizens Bank & Trust Company (FCB), which is headquartered in Raleigh, North Carolina. General These consolidated financial statements and notes are presented in accordance with the instructions for Form 10-Q and, therefore, do not include all information and notes necessary for a complete presentation of financial position, results of operations and cash flow activity required in accordance with accounting principles generally accepted in the United States of America (GAAP). In the opinion of management, all normal recurring adjustments necessary for a fair statement of the consolidated financial position and consolidated results of operations have been made. The information contained in the financial statements and footnotes included in BancShares' Annual Report on Form 10-K for the year ended December 31, 2012, should be referred to in connection with these unaudited interim consolidated financial statements. BancShares evaluates all subsequent events prior to filing this Form 10-Q. Reclassifications In certain instances, 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 cash flows, shareholders' equity or net income. 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 and/or consolidated results of operations and related disclosures. Material estimates that are particularly susceptible to significant change include the determination of the allowance for loan and lease losses, determination of fair value for financial instruments, pension plan assumptions, cash flow estimates on acquired loans receivable and payable from/to the FDIC for loss share agreements, purchase accounting related adjustments and income tax assets, liabilities and expense. Goodwill Impairment Annual impairment tests are conducted as of July 31 each year. Based on the third quarter 2012 impairment test, management concluded there was no impairment of goodwill. In addition to the annual testing requirement, impairment tests are performed if various other events occur including significant adverse changes in the business climate, considering various qualitative and quantitative factors to determine whether impairment exists. There were no such events during the second quarter of 2013. Critical Accounting Policies Update As discussed below, during the second quarter of 2013, BancShares implemented enhancements to the process to estimate the allowance for loan and lease losses (ALLL) and the reserve for unfunded commitments. Through detailed analysis of historical loss data, the process enhancements enabled reallocation of the 'nonspecific' ALLL and a portion of the reserve for unfunded loan commitments to specific loan classes. The enhanced ALLL estimates implicitly include the risk of draws on open lines within each loan class. The remaining reserve for unfunded commitments relates to irrevocable commitments, such as letters of credit and financial guarantees. Other than the modifications described above, the enhancements to the methodology had no material impact on the ALLL. For originated commercial loans and leases, BancShares increased the granularity of the historical net loss data used to develop the applicable loss rates by utilizing information that further considers the class of the commercial loan and associated risk rating. For the originated noncommercial segment, BancShares incorporated specific loan class and delinquency status trends into the loss rates. Prior to the second quarter of 2013, management applied a general reserve methodology that estimated commercial loan allowances based upon loss rates by credit grade with the loss rates derived in part from migration analysis among grades and noncommercial allowances based upon loss rates derived primarily from historical losses. Management also developed an enhanced qualitative framework for considering economic conditions, loan concentrations and other relevant factors at a loan class level. Prior to the second quarter of 2013, the nonspecific portion of the ALLL was not allocated to any specific loan class. This nonspecific portion reflected management's best estimate of the risks inherent in the calculation of the overall ALLL based upon economic conditions, loan concentrations and other relevant factors. Management believes that the methodology enhancements will improve the granularity of historical net loss data and the precision of the segment analysis. Updated accounting policy disclosures for the ALLL and the reserve for unfunded commitments follow. Allowance for Loan and Lease Losses The ALLL represents management's best estimate of probable credit losses within the loan and lease portfolio at the balance sheet date. Management determines the ALLL based on an ongoing evaluation. This evaluation is inherently subjective because it requires material estimates, including the amount and timing of cash flows expected to be received on acquired loans. Those estimates are susceptible to significant change. Adjustments to the ALLL are recorded with a corresponding entry to provision for loan and lease losses. Loan and lease balances deemed to be uncollectible are charged off against the ALLL. Recoveries of amounts previously charged off are credited to the ALLL. Accounting standards require the presentation of certain information at the portfolio segment level, which represents the level at which an entity develops and documents a systematic methodology to determine its ALLL. BancShares evaluates its loan and lease portfolio using three portfolio segments: originated commercial, originated noncommercial and acquired. The originated commercial segment includes commercial construction and land development, commercial mortgage, commercial and industrial, lease financing and other commercial real estate, and the related ALLL was calculated based on a risk-based approach as reflected in credit grades assigned to commercial segment loans. The originated noncommercial segment includes noncommercial construction and land development, residential mortgage, revolving mortgage and consumer loans, and the associated ALLL was determined based on a delinquency-based approach. The ALLL for acquired loans was determined based on the expected cash flows approach. BancShares' methodology for calculating the ALLL includes estimating a general allowance for pools of loans and specific allocations for significant individual credits. The general allowance is based on net historical loan loss experience for homogeneous groups of loans with similar risk characteristics and performance trends. The general allowance estimate also contains qualitative components that allow management to adjust reserves based on historical loan loss experience for changes in the economic environment, portfolio trends and other factors. The specific allowance component is determined when management believes that the collectability of an individually reviewed loan has been impaired and a loss is probable. The fair value of impaired loans is based on the present value of expected cash flows, market prices of the loans, if available, or the value of the underlying collateral. Expected cash flows are discounted at the loans' effective interest rates. The general allowance considers probable, incurred losses that are inherent within the loan portfolio but have not been specifically identified. Loans are divided into segments for analysis based in part on the risk profile inherent in each segment. Loans are further segmented into classes to appropriately recognize changes in inherent risk. A primary component of determining the general allowance for performing and classified loans not analyzed specifically is the actual loss history of the various classes. Loan loss factors based on historical experience may be adjusted for significant factors that, in management's judgment, affect the collectability of the portfolio at the balance sheet date. For originated commercial loans and leases, management incorporates historical net loss data to develop the applicable loan loss factors by utilizing information that further considers the class of the commercial loan and associated risk rating. For the originated noncommercial segment, management incorporates specific loan class and delinquency status trends into the loan loss factors. Loan loss factors may be adjusted quarterly based on changes in the level of historical net charge-offs and model adjustment parameter updates by management, such as the number of periods included in the calculation of loss factors, loss severity and portfolio attrition. The quarterly ALLL evaluation process also includes a qualitative framework which considers economic conditions, composition of the loan portfolio, trends in delinquent and nonperforming loans, historical loss experience by categories of loans, concentrations of credit, changes in lending policies and underwriting standards, regulatory exam results and other factors indicative of potential losses remaining in the portfolio. Management may adjust the reserves calculated based on historical loan loss factors when assessing changes in the factors in the qualitative framework. The adjustments to reserves for the qualitative framework are based on economic data, data analysis of portfolio trends and management judgment. These adjustments are specific to the loan class level. Prior to the second quarter of 2013, a portion of the allowance for loan and lease losses was not allocated to any specific class of loans. This nonspecific portion reflected management's best estimate of the elements of imprecision and estimation risk inherent in the calculation of the overall allowance. A loan is considered to be impaired under ASC Topic 310 Receivables when, based upon current information and events, it is probable that BancShares will be unable to collect all amounts due according to the contractual terms of the loan. Originated impaired loans are placed on nonaccrual status. Originated loan relationships rated substandard or worse that are greater than or equal to $500 are reviewed for potential impairment on a quarterly basis. Loans classified as TDRs are also reviewed for potential impairment. Specific valuation allowances are established or partial charge-offs are recorded on impaired loans for the difference between the loan amount and the estimated fair value. Management continuously monitors and actively manages the credit quality of the entire loan portfolio and adjusts the ALLL to an appropriate level. By assessing the probable estimated incurred losses in the loan portfolio on a quarterly basis, management is able to adjust specific and general loss estimates based upon the most recent information available. Future adjustments to the ALLL may be necessary based on changes in economic and other conditions. Additionally, various regulatory agencies, as an integral part of their examination process, periodically review BancShares' ALLL. Such agencies may require the recognition of adjustments to the ALLL based on their judgments of information available to them at the time of their examination. Management considers the established ALLL adequate to absorb probable losses that relate to loans and leases outstanding as of June 30, 2013. Each portfolio segment and the classes within those segments are subject to risks that could have an adverse impact on the credit quality of the loan and lease portfolio and the related ALLL. Management has identified the most significant risks as described below that are generally similar among the segments and classes. While the list is not exhaustive, it provides a description of the risks management has determined are the most significant. Originated Commercial Loans and Leases Each commercial loan or lease is centrally underwritten based primarily upon the customer's ability to generate the required cash flow to service the debt in accordance with the contractual terms and conditions of the loan agreement. A complete understanding of the borrower's business, including the experience and background of the principals, is obtained prior to approval. To the extent that the loan or lease is secured by collateral, which is true for the majority of commercial loans and leases, the likely value of the collateral and what level of strength the collateral brings to the transaction is evaluated. To the extent that the principals or other parties provide personal guarantees, the relative financial strength and liquidity of each guarantor is assessed. The significant majority of relationships in the originated commercial segment are assigned credit risk grades based upon an assessment of conditions that affect the borrower's ability to meet contractual obligations under the loan agreement. This process includes reviewing borrowers' financial information, payment history, credit documentation, public information and other information specific to each borrower. Credit risk grades are reviewed annually, or at any point management becomes aware of information affecting the borrowers' ability to fulfill their obligations. Our risk grading standards are described in Note C. The impairment assessment and determination of the related specific reserve for each impaired loan is based on a loan's characteristics. Impairment measurement for loans that are not collateral dependent is based on the present value of expected cash flows discounted at the loan's effective interest rate. Specific valuation allowances are established or partial charge-offs are recorded for the difference between the loan amount and the estimated fair value. Impairment measurement for most real estate loans, particularly when a loan is considered to be a probable foreclosure, is based on the fair value of the underlying collateral. Collateral is appraised and market value, appropriately adjusted for an assessment of the sales and marketing costs as well as the total hold period, is used to calculate an anticipated fair value. General reserves for collective impairment are based on estimated incurred losses related to non-impaired commercial loans and leases as of the balance sheet date. Incurred loss estimates for the originated commercial segment are based on average loss rates, which are estimated using historical experience and current risk mix as indicated by the risk grading process. Incurred loss estimates may be adjusted through a qualitative assessment to reflect current economic conditions and portfolio trends including credit quality, concentrations, aging of the portfolio and significant policy and underwriting changes. Common risks to each class of commercial loans include general economic conditions within the markets BancShares serves, as well as risks that are specific to each transaction including demand for products and services, personal events such as disability or change in marital status and reductions in the value of collateral. Due to the concentration of loans in the medical, dental and related fields, BancShares is susceptible to risks that legislative and governmental actions will fundamentally alter the economic structure of the medical care industry in the United States. In addition to these common risks for the majority of the originated commercial segment, additional risks are inherent in certain classes of originated commercial loans and leases. Commercial construction and land development Commercial construction and land development loans are highly dependent on the supply and demand for commercial real estate in the markets served by BancShares as well as the demand for newly constructed residential homes and lots that customers are developing. Continuing deterioration in demand could result in significant decreases in the underlying collateral values and make repayment of the outstanding loans more difficult for customers. Commercial mortgage, commercial and industrial and lease financing Commercial mortgage and commercial and industrial loans and lease financing are primarily dependent on the ability of borrowers to achieve business results consistent with those projected at loan origination resulting in cash flow sufficient to service the debt. To the extent that a customer's business results are significantly unfavorable versus the original projections, the ability for the loan to be serviced on a basis consistent with the contractual terms may be at risk. While these loans and leases are generally secured by real property, personal property, or business assets such as inventory or accounts receivable, it is possible that the liquidation of the collateral will not fully satisfy the obligation. Other commercial real estate Other commercial real estate loans consist primarily of loans secured by multifamily housing and agricultural loans. The primary risk associated with multifamily loans is the ability of the income-producing property that collateralizes the loan to produce adequate cash flow to service the debt. High unemployment or generally weak economic conditions may result in customers having to provide rental rate concessions to achieve adequate occupancy rates. The performance of agricultural loans is highly dependent on favorable weather, reasonable costs for seed and fertilizer and the ability to successfully market the product at a profitable margin. The demand for these products is also dependent on macroeconomic conditions that are beyond the control of the borrower. Originated Noncommercial Loans and Leases Each originated noncommercial loan is centrally underwritten using automated credit scoring and analysis tools. These credit scoring tools take into account factors such as payment history, credit utilization, length of credit history, types of credit currently in use and recent credit inquiries. To the extent that the loan is secured by collateral, the likely value of that collateral is evaluated. The ALLL for the originated noncommercial segment is primarily calculated on a pool basis using a delinquency-based approach. Estimates of incurred losses are based on historical loss experience and the current risk mix as indicated by prevailing delinquency rates. These estimates may be adjusted through a qualitative assessment to reflect current economic conditions, portfolio trends and other factors. The remaining portion of the ALLL related to the originated noncommercial segment results from loans that are deemed impaired. The impairment assessment and determination of the related specific reserve for each impaired loan is based on a loan's characteristics. Impairment measurement for loans that are not collateral dependent is based on the present value of expected cash flows discounted at the loan's effective interest rate. Specific valuation allowances are established or partial charge-offs are recorded for the difference between the loan amount and the estimated fair value. Impairment measurement for most real estate loans, particularly when a loan is considered to be a probable foreclosure, is based on the fair value of the underlying collateral. Collateral is appraised and market value, appropriately adjusted for an assessment of the sales and marketing costs as well as the total hold period, is used to calculate an anticipated fair value. Common risks to each class of noncommercial loans include risks that are not specific to individual transactions such as general economic conditions within the markets BancShares serves, particularly unemployment and potential declines in real estate values. Personal events such as disability or change in marital status also add risk to noncommercial loans. In addition to these common risks for the majority of noncommercial loans, additional risks are inherent in certain classes of noncommercial loans. Revolving mortgage Revolving mortgage loans are often secured by second liens on residential real estate, thereby making such loans particularly susceptible to declining collateral values. A substantial decline in collateral value could render a second lien position to be effectively unsecured. Additional risks include lien perfection inaccuracies, disputes with first lienholders and uncertainty regarding the customer's performance with respect to the first lien that may further weaken the collateral position. Further, the open-end structure of these loans creates the risk that customers may draw on the lines in excess of the collateral value if there have been significant declines since origination. Consumer The consumer loan portfolio includes loans secured by personal property such as automobiles, marketable securities, other titled recreational vehicles including boats and motorcycles, as well as unsecured consumer debt. The value of underlying collateral within this class is especially volatile due to potential rapid depreciation in values since date of loan origination, potentially in excess of principal balances. Residential mortgage and noncommercial construction and land development Residential mortgage and noncommercial construction and land development loans are made to individuals and are typically secured by 1-4 family residential property, undeveloped land and partially developed land in anticipation of pending construction of a personal residence. Significant and rapid declines in real estate values can result in residential mortgage loan borrowers having debt levels in excess of the current market value of the collateral. Noncommercial construction and land development projects can experience delays in completion and cost overruns that exceed the borrower's financial ability to complete the project. Such cost overruns can routinely result in foreclosure of partially completed and unmarketable collateral. Acquired loans The risks associated with acquired loans are generally consistent with the risks identified for commercial and noncommercial originated loans and the classes of loans within those segments. However, these loans were underwritten by other institutions with weaker lending standards. Additionally, in some cases, collateral for acquired loans is located in regions that have experienced profound erosion of real estate values. Therefore, there is a significant risk that acquired loans are not adequately supported by borrower cash flow or the values of underlying collateral. Reserve for Unfunded Commitments The reserve for unfunded commitments represents the estimated probable losses related to unfunded lending commitments, such as letters of credit and financial guarantees. The reserve is calculated in a manner similar to the loans evaluated collectively for impairment, considering the likelihood that the available credit will be utilized as well as the exposure to default. The reserve for unfunded commitments is presented within other liabilities on the consolidated balance sheets separately from the ALLL and adjustments to the reserve for unfunded commitments are included in other noninterest expense in the consolidated statements of income. Recent Accounting and Regulatory Pronouncements Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU ) 2013-11, “Income Taxes (Topic 740)” This ASU states that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require BancShares to use, and BancShares does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. The assessment of whether a deferred tax asset is available is based on the unrecognized tax benefit and deferred tax asset that exist at the reporting date and should be made presuming disallowance of the tax position at the reporting date. The amendments in this Update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Early adoption is permitted. The amendments should be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. BancShares will adopt this ASU by the date required and does not anticipate that the ASU will have a material effect on its financial position or results of operations. FASB ASU 2013-10, “Derivatives and Hedging (Topic 815)" This ASU permits the use of the Fed Funds Effective Swap Rate (OIS) by BancShares as a U.S. benchmark interest rate for hedge accounting purposes under Topic 815, in addition to United States Treasury (UST) and London Interbank Offered Rate (LIBOR). The amendments also remove the restriction on using different benchmark rates for similar hedges. The amendments are effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. BancShares will adopt this ASU by the date required and does not anticipate that the ASU will have a material effect on its financial position or results of operations. FASB ASU 2013-04, “Liabilities” This ASU provides guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this Update is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP. The guidance requires BancShares to measure those obligations as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance in this Update also requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations. The amendments in this update are effective for fiscal years beginning after December 31, 2013. Early adoption is permitted. BancShares will adopt the methodologies prescribed by this ASU by the date required, and does not anticipate that the ASU will have a material effect on its financial position or results of operations. FASB ASU 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” This ASU requires BancShares to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts, BancShares is required to cross-reference to other disclosures required under GAAP that provide additional detail about those amounts. For public entities, the amendments are effective prospectively for reporting periods beginning after December 15, 2012. BancShares has adopted the methodologies prescribed by this ASU by the date required, and the ASU did not have a material effect on its financial position or results of operations. BancShares has included the required disclosures in Note L. FASB ASU 2013-01, “Balance Sheet” This ASU's objective is to clarify that the scope of ASU No. 2011-11, Disclosures about Offsetting Assets and Liabilities, would apply to derivatives including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that are either offset in accordance with Section 210-20-45 or Section 815-10-45 or are subject to a master netting arrangement or similar agreement. BancShares is required to apply the amendments for fiscal years beginning on or after January 1, 2013, and interim periods within those annual periods. The effective date is the same as the effective date of Update 2011-11. BancShares has adopted the methodologies prescribed by this ASU by the date required, and the ASU did not have a material effect on its financial position or results of operations.

Accounting Policies and Basis of Presentation

First Citizens BancShares, Inc. (BancShares) is a financial holding company organized under the laws of Delaware and conducts operations through its banking subsidiary, First-Citizens Bank & Trust Company (FCB), which is headquartered in Raleigh, North Carolina.

General

These consolidated financial statements and notes are presented in accordance with the instructions for Form 10-Q and, therefore, do not include all information and notes necessary for a complete presentation of financial position, results of operations and cash flow activity required in accordance with accounting principles generally accepted in the United States of America (GAAP). In the opinion of management, all normal recurring adjustments necessary for a fair statement of the consolidated financial position and consolidated results of operations have been made. The information contained in the financial statements and footnotes included in BancShares' Annual Report on Form 10-K for the year ended December 31, 2012, should be referred to in connection with these unaudited interim consolidated financial statements.

BancShares evaluates all subsequent events prior to filing this Form 10-Q.

Reclassifications

In certain instances, 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 cash flows, shareholders' equity or net income.

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 and/or consolidated results of operations and related disclosures. Material estimates that are particularly susceptible to significant change include the determination of the allowance for loan and lease losses, determination of fair value for financial instruments, pension plan assumptions, cash flow estimates on acquired loans receivable and payable from/to the FDIC for loss share agreements, purchase accounting related adjustments and income tax assets, liabilities and expense.

Goodwill Impairment

Annual impairment tests are conducted as of July 31 each year. Based on the third quarter 2012 impairment test, management concluded there was no impairment of goodwill. In addition to the annual testing requirement, impairment tests are performed if various other events occur including significant adverse changes in the business climate, considering various qualitative and quantitative factors to determine whether impairment exists. There were no such events during the second quarter of 2013.

Critical Accounting Policies Update

As discussed below, during the second quarter of 2013, BancShares implemented enhancements to the process to estimate the allowance for loan and lease losses (ALLL) and the reserve for unfunded commitments. Through detailed analysis of historical loss data, the process enhancements enabled reallocation of the 'nonspecific' ALLL and a portion of the reserve for unfunded loan commitments to specific loan classes. The enhanced ALLL estimates implicitly include the risk of draws on open lines within each loan class. The remaining reserve for unfunded commitments relates to irrevocable commitments, such as letters of credit and financial guarantees. Other than the modifications described above, the enhancements to the methodology had no material impact on the ALLL.

For originated commercial loans and leases, BancShares increased the granularity of the historical net loss data used to develop the applicable loss rates by utilizing information that further considers the class of the commercial loan and associated risk rating. For the originated noncommercial segment, BancShares incorporated specific loan class and delinquency status trends into the loss rates. Prior to the second quarter of 2013, management applied a general reserve methodology that estimated commercial loan allowances based upon loss rates by credit grade with the loss rates derived in part from migration analysis among grades and noncommercial allowances based upon loss rates derived primarily from historical losses.

Management also developed an enhanced qualitative framework for considering economic conditions, loan concentrations and other relevant factors at a loan class level. Prior to the second quarter of 2013, the nonspecific portion of the ALLL was not allocated to any specific loan class. This nonspecific portion reflected management's best estimate of the risks inherent in the calculation of the overall ALLL based upon economic conditions, loan concentrations and other relevant factors.

Management believes that the methodology enhancements will improve the granularity of historical net loss data and the precision of the segment analysis. Updated accounting policy disclosures for the ALLL and the reserve for unfunded commitments follow.

Allowance for Loan and Lease Losses

The ALLL represents management's best estimate of probable credit losses within the loan and lease portfolio at the balance sheet date. Management determines the ALLL based on an ongoing evaluation. This evaluation is inherently subjective because it requires material estimates, including the amount and timing of cash flows expected to be received on acquired loans. Those estimates are susceptible to significant change. Adjustments to the ALLL are recorded with a corresponding entry to provision for loan and lease losses. Loan and lease balances deemed to be uncollectible are charged off against the ALLL. Recoveries of amounts previously charged off are credited to the ALLL.

Accounting standards require the presentation of certain information at the portfolio segment level, which represents the level at which an entity develops and documents a systematic methodology to determine its ALLL. BancShares evaluates its loan and lease portfolio using three portfolio segments: originated commercial, originated noncommercial and acquired. The originated commercial segment includes commercial construction and land development, commercial mortgage, commercial and industrial, lease financing and other commercial real estate, and the related ALLL was calculated based on a risk-based approach as reflected in credit grades assigned to commercial segment loans. The originated noncommercial segment includes noncommercial construction and land development, residential mortgage, revolving mortgage and consumer loans, and the associated ALLL was determined based on a delinquency-based approach. The ALLL for acquired loans was determined based on the expected cash flows approach.

BancShares' methodology for calculating the ALLL includes estimating a general allowance for pools of loans and specific allocations for significant individual credits. The general allowance is based on net historical loan loss experience for homogeneous groups of loans with similar risk characteristics and performance trends. The general allowance estimate also contains qualitative components that allow management to adjust reserves based on historical loan loss experience for changes in the economic environment, portfolio trends and other factors. The specific allowance component is determined when management believes that the collectability of an individually reviewed loan has been impaired and a loss is probable. The fair value of impaired loans is based on the present value of expected cash flows, market prices of the loans, if available, or the value of the underlying collateral. Expected cash flows are discounted at the loans' effective interest rates.

The general allowance considers probable, incurred losses that are inherent within the loan portfolio but have not been specifically identified. Loans are divided into segments for analysis based in part on the risk profile inherent in each segment. Loans are further segmented into classes to appropriately recognize changes in inherent risk. A primary component of determining the general allowance for performing and classified loans not analyzed specifically is the actual loss history of the various classes. Loan loss factors based on historical experience may be adjusted for significant factors that, in management's judgment, affect the collectability of the portfolio at the balance sheet date. For originated commercial loans and leases, management incorporates historical net loss data to develop the applicable loan loss factors by utilizing information that further considers the class of the commercial loan and associated risk rating. For the originated noncommercial segment, management incorporates specific loan class and delinquency status trends into the loan loss factors. Loan loss factors may be adjusted quarterly based on changes in the level of historical net charge-offs and model adjustment parameter updates by management, such as the number of periods included in the calculation of loss factors, loss severity and portfolio attrition.

The quarterly ALLL evaluation process also includes a qualitative framework which considers economic conditions, composition of the loan portfolio, trends in delinquent and nonperforming loans, historical loss experience by categories of loans, concentrations of credit, changes in lending policies and underwriting standards, regulatory exam results and other factors indicative of potential losses remaining in the portfolio. Management may adjust the reserves calculated based on historical loan loss factors when assessing changes in the factors in the qualitative framework. The adjustments to reserves for the qualitative framework are based on economic data, data analysis of portfolio trends and management judgment. These adjustments are specific to the loan class level. Prior to the second quarter of 2013, a portion of the allowance for loan and lease losses was not allocated to any specific class of loans. This nonspecific portion reflected management's best estimate of the elements of imprecision and estimation risk inherent in the calculation of the overall allowance.

A loan is considered to be impaired under ASC Topic 310 Receivables when, based upon current information and events, it is probable that BancShares will be unable to collect all amounts due according to the contractual terms of the loan. Originated impaired loans are placed on nonaccrual status. Originated loan relationships rated substandard or worse that are greater than or equal to $500 are reviewed for potential impairment on a quarterly basis. Loans classified as TDRs are also reviewed for potential impairment. Specific valuation allowances are established or partial charge-offs are recorded on impaired loans for the difference between the loan amount and the estimated fair value.

Management continuously monitors and actively manages the credit quality of the entire loan portfolio and adjusts the ALLL to an appropriate level. By assessing the probable estimated incurred losses in the loan portfolio on a quarterly basis, management is able to adjust specific and general loss estimates based upon the most recent information available. Future adjustments to the ALLL may be necessary based on changes in economic and other conditions. Additionally, various regulatory agencies, as an integral part of their examination process, periodically review BancShares' ALLL. Such agencies may require the recognition of adjustments to the ALLL based on their judgments of information available to them at the time of their examination. Management considers the established ALLL adequate to absorb probable losses that relate to loans and leases outstanding as of June 30, 2013.

Each portfolio segment and the classes within those segments are subject to risks that could have an adverse impact on the credit quality of the loan and lease portfolio and the related ALLL. Management has identified the most significant risks as described below that are generally similar among the segments and classes. While the list is not exhaustive, it provides a description of the risks management has determined are the most significant.

Originated Commercial Loans and Leases

Each commercial loan or lease is centrally underwritten based primarily upon the customer's ability to generate the required cash flow to service the debt in accordance with the contractual terms and conditions of the loan agreement. A complete understanding of the borrower's business, including the experience and background of the principals, is obtained prior to approval. To the extent that the loan or lease is secured by collateral, which is true for the majority of commercial loans and leases, the likely value of the collateral and what level of strength the collateral brings to the transaction is evaluated. To the extent that the principals or other parties provide personal guarantees, the relative financial strength and liquidity of each guarantor is assessed.

The significant majority of relationships in the originated commercial segment are assigned credit risk grades based upon an assessment of conditions that affect the borrower's ability to meet contractual obligations under the loan agreement. This process includes reviewing borrowers' financial information, payment history, credit documentation, public information and other information specific to each borrower. Credit risk grades are reviewed annually, or at any point management becomes aware of information affecting the borrowers' ability to fulfill their obligations. Our risk grading standards are described in Note C.

The impairment assessment and determination of the related specific reserve for each impaired loan is based on a loan's characteristics. Impairment measurement for loans that are not collateral dependent is based on the present value of expected cash flows discounted at the loan's effective interest rate. Specific valuation allowances are established or partial charge-offs are recorded for the difference between the loan amount and the estimated fair value. Impairment measurement for most real estate loans, particularly when a loan is considered to be a probable foreclosure, is based on the fair value of the underlying collateral. Collateral is appraised and market value, appropriately adjusted for an assessment of the sales and marketing costs as well as the total hold period, is used to calculate an anticipated fair value.

General reserves for collective impairment are based on estimated incurred losses related to non-impaired commercial loans and leases as of the balance sheet date. Incurred loss estimates for the originated commercial segment are based on average loss rates, which are estimated using historical experience and current risk mix as indicated by the risk grading process. Incurred loss estimates may be adjusted through a qualitative assessment to reflect current economic conditions and portfolio trends including credit quality, concentrations, aging of the portfolio and significant policy and underwriting changes.

Common risks to each class of commercial loans include general economic conditions within the markets BancShares serves, as well as risks that are specific to each transaction including demand for products and services, personal events such as disability or change in marital status and reductions in the value of collateral. Due to the concentration of loans in the medical, dental and related fields, BancShares is susceptible to risks that legislative and governmental actions will fundamentally alter the economic structure of the medical care industry in the United States.

In addition to these common risks for the majority of the originated commercial segment, additional risks are inherent in certain classes of originated commercial loans and leases.

Commercial construction and land development

Commercial construction and land development loans are highly dependent on the supply and demand for commercial real estate in the markets served by BancShares as well as the demand for newly constructed residential homes and lots that customers are developing. Continuing deterioration in demand could result in significant decreases in the underlying collateral values and make repayment of the outstanding loans more difficult for customers.

Commercial mortgage, commercial and industrial and lease financing

Commercial mortgage and commercial and industrial loans and lease financing are primarily dependent on the ability of borrowers to achieve business results consistent with those projected at loan origination resulting in cash flow sufficient to service the debt. To the extent that a customer's business results are significantly unfavorable versus the original projections, the ability for the loan to be serviced on a basis consistent with the contractual terms may be at risk. While these loans and leases are generally secured by real property, personal property, or business assets such as inventory or accounts receivable, it is possible that the liquidation of the collateral will not fully satisfy the obligation.

Other commercial real estate

Other commercial real estate loans consist primarily of loans secured by multifamily housing and agricultural loans. The primary risk associated with multifamily loans is the ability of the income-producing property that collateralizes the loan to produce adequate cash flow to service the debt. High unemployment or generally weak economic conditions may result in customers having to provide rental rate concessions to achieve adequate occupancy rates. The performance of agricultural loans is highly dependent on favorable weather, reasonable costs for seed and fertilizer and the ability to successfully market the product at a profitable margin. The demand for these products is also dependent on macroeconomic conditions that are beyond the control of the borrower.

Originated Noncommercial Loans and Leases

Each originated noncommercial loan is centrally underwritten using automated credit scoring and analysis tools. These credit scoring tools take into account factors such as payment history, credit utilization, length of credit history, types of credit currently in use and recent credit inquiries. To the extent that the loan is secured by collateral, the likely value of that collateral is evaluated.

The ALLL for the originated noncommercial segment is primarily calculated on a pool basis using a delinquency-based approach. Estimates of incurred losses are based on historical loss experience and the current risk mix as indicated by prevailing delinquency rates. These estimates may be adjusted through a qualitative assessment to reflect current economic conditions, portfolio trends and other factors. The remaining portion of the ALLL related to the originated noncommercial segment results from loans that are deemed impaired. The impairment assessment and determination of the related specific reserve for each impaired loan is based on a loan's characteristics. Impairment measurement for loans that are not collateral dependent is based on the present value of expected cash flows discounted at the loan's effective interest rate. Specific valuation allowances are established or partial charge-offs are recorded for the difference between the loan amount and the estimated fair value. Impairment measurement for most real estate loans, particularly when a loan is considered to be a probable foreclosure, is based on the fair value of the underlying collateral. Collateral is appraised and market value, appropriately adjusted for an assessment of the sales and marketing costs as well as the total hold period, is used to calculate an anticipated fair value.

Common risks to each class of noncommercial loans include risks that are not specific to individual transactions such as general economic conditions within the markets BancShares serves, particularly unemployment and potential declines in real estate values. Personal events such as disability or change in marital status also add risk to noncommercial loans.

In addition to these common risks for the majority of noncommercial loans, additional risks are inherent in certain classes of noncommercial loans.

Revolving mortgage

Revolving mortgage loans are often secured by second liens on residential real estate, thereby making such loans particularly susceptible to declining collateral values. A substantial decline in collateral value could render a second lien position to be effectively unsecured. Additional risks include lien perfection inaccuracies, disputes with first lienholders and uncertainty regarding the customer's performance with respect to the first lien that may further weaken the collateral position. Further, the open-end structure of these loans creates the risk that customers may draw on the lines in excess of the collateral value if there have been significant declines since origination.

Consumer

The consumer loan portfolio includes loans secured by personal property such as automobiles, marketable securities, other titled recreational vehicles including boats and motorcycles, as well as unsecured consumer debt. The value of underlying collateral within this class is especially volatile due to potential rapid depreciation in values since date of loan origination, potentially in excess of principal balances.

Residential mortgage and noncommercial construction and land development

Residential mortgage and noncommercial construction and land development loans are made to individuals and are typically secured by 1-4 family residential property, undeveloped land and partially developed land in anticipation of pending construction of a personal residence. Significant and rapid declines in real estate values can result in residential mortgage loan borrowers having debt levels in excess of the current market value of the collateral. Noncommercial construction and land development projects can experience delays in completion and cost overruns that exceed the borrower's financial ability to complete the project. Such cost overruns can routinely result in foreclosure of partially completed and unmarketable collateral.

Acquired loans

The risks associated with acquired loans are generally consistent with the risks identified for commercial and noncommercial originated loans and the classes of loans within those segments. However, these loans were underwritten by other institutions with weaker lending standards. Additionally, in some cases, collateral for acquired loans is located in regions that have experienced profound erosion of real estate values. Therefore, there is a significant risk that acquired loans are not adequately supported by borrower cash flow or the values of underlying collateral.

Reserve for Unfunded Commitments

The reserve for unfunded commitments represents the estimated probable losses related to unfunded lending commitments, such as letters of credit and financial guarantees. The reserve is calculated in a manner similar to the loans evaluated collectively for impairment, considering the likelihood that the available credit will be utilized as well as the exposure to default. The reserve for unfunded commitments is presented within other liabilities on the consolidated balance sheets separately from the ALLL and adjustments to the reserve for unfunded commitments are included in other noninterest expense in the consolidated statements of income.

Recent Accounting and Regulatory Pronouncements

Financial Accounting Standards Board (FASB) Accounting Standards Update (ASU ) 2013-11, “Income Taxes (Topic 740)”

This ASU states that an unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require BancShares to use, and BancShares does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. The assessment of whether a deferred tax asset is available is based on the unrecognized tax benefit and deferred tax asset that exist at the reporting date and should be made presuming disallowance of the tax position at the reporting date.

The amendments in this Update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Early adoption is permitted.

The amendments should be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. BancShares will adopt this ASU by the date required and does not anticipate that the ASU will have a material effect on its financial position or results of operations.

FASB ASU 2013-10, “Derivatives and Hedging (Topic 815)"

This ASU permits the use of the Fed Funds Effective Swap Rate (OIS) by BancShares as a U.S. benchmark interest rate for hedge accounting purposes under Topic 815, in addition to United States Treasury (UST) and London Interbank Offered Rate (LIBOR). The amendments also remove the restriction on using different benchmark rates for similar hedges.

The amendments are effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. BancShares will adopt this ASU by the date required and does not anticipate that the ASU will have a material effect on its financial position or results of operations.

FASB ASU 2013-04, “Liabilities”

This ASU provides guidance for the recognition, measurement, and disclosure of obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this Update is fixed at the reporting date, except for obligations addressed within existing guidance in GAAP.

The guidance requires BancShares to measure those obligations as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance in this Update also requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations.

The amendments in this update are effective for fiscal years beginning after December 31, 2013. Early adoption is permitted. BancShares will adopt the methodologies prescribed by this ASU by the date required, and does not anticipate that the ASU will have a material effect on its financial position or results of operations.

FASB ASU 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income”

This ASU requires BancShares to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts, BancShares is required to cross-reference to other disclosures required under GAAP that provide additional detail about those amounts.

For public entities, the amendments are effective prospectively for reporting periods beginning after December 15, 2012. BancShares has adopted the methodologies prescribed by this ASU by the date required, and the ASU did not have a material effect on its financial position or results of operations. BancShares has included the required disclosures in Note L.

FASB ASU 2013-01, “Balance Sheet”

This ASU's objective is to clarify that the scope of ASU No. 2011-11, Disclosures about Offsetting Assets and Liabilities, would apply to derivatives including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that are either offset in accordance with Section 210-20-45 or Section 815-10-45 or are subject to a master netting arrangement or similar agreement.

BancShares is required to apply the amendments for fiscal years beginning on or after January 1, 2013, and interim periods within those annual periods. The effective date is the same as the effective date of Update 2011-11. BancShares has adopted the methodologies prescribed by this ASU by the date required, and the ASU did not have a material effect on its financial position or results of operations.