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Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2011
Summary of Significant Accounting Policies [Abstract]  
Summary of Significant Accounting Policies
Note 1:  Summary of Significant Accounting Policies

Basis of Presentation:  The consolidated financial statements include the accounts of Bank of Marin Bancorp (“Bancorp”), a bank holding company, and its sole and wholly-owned bank subsidiary, Bank of Marin (the “Bank”, a California state-chartered commercial bank). All material intercompany transactions have been eliminated. In the opinion of Management, the consolidated financial statements contain all adjustments necessary to present fairly the financial position, results of operations, changes in stockholders' equity and cash flows.  All adjustments are of a normal, recurring nature. We have evaluated subsequent events through the date of filing with the Securities and Exchange Commission (“SEC”) and have determined that there are no subsequent events that require additional recognition or disclosure.

Nature of Operations:  Bancorp, headquartered in Novato, CA, conducts business primarily through its wholly-owned subsidiary, the Bank, which provides a wide range of financial services to customers, who are predominantly professionals, small and middle-market businesses, and individuals who work and/or reside in Marin, Napa, San Francisco and Sonoma counties. Besides the headquarter office in Novato, CA, the Bank operates ten branches in Marin County, one in Napa County, one in San Francisco and five in Sonoma County.  Our accounting and reporting policies conform to generally accepted accounting principles and general practice within the banking industry.  A summary of our significant policies follows.

Cash and Cash Equivalents include cash, due from banks, Federal funds sold and other short-term investments with maturity less than three months at the time of origination.

Investment Securities are classified as "held to maturity," "trading securities" or "available for sale."  Investments classified as held to maturity are those that we have the ability and intent to hold until maturity and are reported at cost, adjusted for the amortization or accretion of premiums or discounts.  Investments held for resale in anticipation of short-term market movements are classified as trading securities and are reported at fair value, with unrealized gains and losses included in earnings.  Investments that are neither held to maturity nor trading are classified as available for sale and are reported at fair value. Unrealized gains and losses, net of related tax, are reported as a separate component of comprehensive income and included in stockholders' equity until realized.  For discussion of our methodology in determining fair value, see Note 10.

At each financial statement date, Management assesses whether declines in the fair value of held-to-maturity and available-for-sale securities below their costs are deemed to be other-than-temporary. Management considers, among other things, (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer, and (iii) our intent and ability to retain the investment for a period of time sufficient to allow for any anticipated recovery in fair value. Evidence evaluated includes, but is not limited to, the remaining payment terms of the instrument and economic factors that are relevant to the collectability of the instrument, such as: current prepayment speeds, the current financial condition of the issuer(s), industry analyst reports, credit ratings, credit default rates, interest rate trends and the value of any underlying collateral.

For each security in an unrealized loss position, we assess whether we intend to sell the security, or it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis less any current-period credit losses. For debt securities that are considered other-than-temporarily impaired, are not intended for sale and will not be required to be sold prior to recovery of our amortized cost basis, we separate the amount of the impairment into the amount that is credit related (credit loss component) and the amount due to all other factors. The credit loss component is recognized in earnings and is calculated as the difference between the security's amortized cost basis and the present value of its expected future cash flows. The remaining difference between the security's fair value and the present value of future expected cash flows is deemed to be due to factors that are not credit related and is recognized in other comprehensive income, net of applicable taxes. The other-than-temporary impairment recognized in other comprehensive income for debt securities classified as held-to-maturity is accreted from other comprehensive income to the amortized cost of the debt security over the remaining life of the debt security in a prospective manner on the basis of the amount and timing of future estimated cash flows.

Premiums and discounts are amortized or accreted over the life of the related security as an adjustment to yield using the effective interest method.  Dividend and interest income are recognized when earned.  Realized gains and losses for securities are included in earnings and are derived using the specific identification method for determining the cost of securities sold.

Originated Loans are reported at the principal amount outstanding net of deferred fees, charge-offs and the allowance for loan losses (“ALLL”).  Interest income is accrued daily using the simple interest method.  Loans are placed on non-accrual status when Management believes that there is doubt as to the collection of principal or interest, generally when they become contractually past due by ninety days or more with respect to principal or interest, except for loans that are well-secured and in the process of collection.  When loans are placed on non-accrual status, any accrued but uncollected interest is reversed from current-period interest income and interest income is recorded only after the loan is brought current or after all principal and past due interest has been collected. For loans whose contractual terms have been restructured in a manner which grants a concession to a borrower experiencing financial difficulties (“troubled debt restructuring”), they are returned to accrual status when there has been a sustained period of repayment performance (generally, six consecutive monthly payments) according to the modified terms and there is reasonable assurance of repayment and of performance.

Loan origination fees and commitment fees, offset by certain direct loan origination costs, are deferred and amortized as yield adjustments over the contractual lives of the related loans.

Loan Charge-Off Policy: For all types of loans except overdraft accounts, we generally fully or partially charge down to its net realizable value for a non-collateral-dependent loan, or the fair value of collateral securing the loan for a collateral-dependent loan when: (1) it is deemed uncollectable; (2) the loan has been classified as a loss by either our internal loan review process or external examiners; or (3) the loan is 180 days past due unless both well secured and in the process of collection. For an overdraft account, we generally charge it off when it is more than 90 days delinquent.

Allowance for Loan Losses is based upon estimates of loan losses and is maintained at a level considered adequate to provide for probable losses inherent in the loan portfolio.  The allowance is increased by provisions for loan losses charged against earnings and reduced by charge-offs, net of recoveries.

In periodic evaluations of the adequacy of the allowance balance,  Management considers current economic conditions, known and inherent risks in the portfolio, adverse situations that may affect the borrower's ability to repay, the estimated value of any underlying collateral, our past loan loss experience and other factors. The ALLL is based on estimates and ultimate losses may vary from current estimates. Our Asset/Liability Management Committee (“ALCO”) reviews the adequacy of the ALLL at least quarterly, to include consideration of the relative risks in the portfolio and current economic conditions.  The allowance is adjusted based on that review if, in the judgment of the ALCO and Management, changes are warranted.

The overall allowance consists of specific allowances for individually identified impaired loans, an allowance factor for pools of credits and allowances for changing environmental factors (e.g., portfolio trends, concentration of credit, growth, economic factors, etc.).

The first component, the specific allowance, results from the analysis of identified problem credits and the evaluation of sources of repayment including collateral, as applicable. Through Management's ongoing loan grading and credit monitoring process, individual loans are identified that have conditions that indicate the borrower may be unable to pay all amounts due under the contractual terms. These loans are evaluated for impairment individually by Management. Management considers a loan to be impaired when it is probable we will be unable to collect all amounts due according to the contractual terms of the loan agreement.  When the fair value of the impaired loan is less than the recorded investment in the loan, the difference is recorded as the impairment through the establishment of the specific allowance. For loans determined to be impaired, the extent of the impairment is measured based on the present value of expected future cash flows discounted at the loan's effective interest rate at origination, based on the loan's observable market price, or based on the fair value of the collateral, if the loan is collateral dependent.  Generally with problem credits that are collateral-dependent, we obtain appraisals of the collateral at least annually. We may obtain appraisals more frequently if we believe the collateral value is subject to market volatility, if a specific event has occurred to the collateral, or if we believe foreclosure is imminent.

The second component is an estimate of the probable inherent losses in each loan pool stratified by major segments of loans with similar characteristics in our loan portfolio. This analysis encompasses our entire loan portfolio and excludes acquired loans where the discount has not been fully accreted. Loans are segmented into the following pools: commercial real estate, construction, commercial, and consumer loans. Management also sub-segments these segments into classes based on the associated risks within those segments. Commercial real estate loans are divided into the following two classes: owner-occupied and non-owner-occupied. Consumer loans are divided into three classes: residential real estate, home equity and other consumer loans. The total amount allocated for the second component is determined by applying loss multipliers to outstanding loans in each loan pool. Loss multipliers for loan pools are based on analysis of local economic factors, current loan portfolio quality, historical loss experience and trends applicable to each loan pool.  Local economic factors considered include state and local unemployment rates, occupancy rates and sales statistics as external criteria for loan loss estimation.  In addition, additional loss factors are applied to substandard loans based on the increased risk of loss inherent in those credits.

The third component of the ALLL is an economic component, which is Management's best estimate of the probable impact that economic changes may have on the loan portfolio as a whole. It is not allocated to specific loans or groups of loans, but rather is intended to absorb losses caused by portfolio trends, concentration of credit, growth, and economic trends.
 
Acquired Loans are recorded at their estimated fair values at acquisition date, factoring in credit losses expected to be incurred over the life of the loan. Accordingly, an allowance for loan losses is not carried over or recorded for acquired loans as of the acquisition date.
 
Purchased credit-impaired (“PCI”) loans are those acquired with evidence of credit quality deterioration subsequent to their origination and for which it was probable, at acquisition, that we would be unable to collect all contractually required payments. Management has applied significant judgment in determining which loans are PCI loans. Evidence of credit quality deterioration as of the purchase date may include statistics such as past due and nonaccrual status, risk grades and recent loan-to-value percentages. Revolving credit agreements (e.g. home equity lines of credit and revolving commercial loans), if at the acquisition date the borrower had revolving privileges, are not considered PCI loans as cash flows cannot be reasonably estimated.
 
The excess of the cash flows of PCI loans initially expected to be collected over the fair value of the loans at the acquisition date (i.e., the accretable yield) is accreted into interest income using the effective yield method, provided that the timing and amount of future cash flows is reasonably estimable. The difference between the contractually required payments and the cash flows expected to be collected at acquisition, considering the impact of prepayments, is referred to as the nonaccretable difference and is not recorded. The estimate of cash flows expected to be collected is updated quarterly and requires the continued usage of key assumptions and estimates similar to the initial estimate of fair value. For discussion of the initial assumptions used in determining the fair value of the acquired loans, see Note 2.
 
For purposes of accounting for the PCI loans purchased in the FDIC1-assisted acquisition of certain assets and the assumption of certain liabilities of the former Charter Oak Bank on February 18, 2011 (the “Acquisition”), we elected to account for these loans individually. Resolution of loans, which may include sales of loans to third parties, receipt of payments in full by the borrower and foreclosure of the collateral, result in removal of the loans from the PCI loan portfolio at its carrying amount, and any gains and losses as a result of resolutions are included in interest income.
 
Subsequent to the Acquisition, if we have probable decreases in cash flows expected to be collected (other than due to decreases in interest rate indices), we charge the provision for loan losses and specific allowances are allocated to PCI loans that have experienced credit deterioration. If we have probable and significant increases in cash flows expected to be collected on PCI loans, we first reverse any previously established specific allowances and then increase interest income as a prospective yield adjustment over the remaining life of the loans. Changes in cash flows due to changes in interest rate indices for variable rate loans and prepayment assumptions are recorded in interest income via prospective yield adjustment.  At Acquisition, PCI loans with future cash flows that could be reasonably estimated were not classified as nonperforming because we believed that we would fully collect the new carrying value of these loans. When there is doubt as to the timing and amount of future cash flows to be collected, PCIs are classified as non-accrual loans. It is important to note that judgment is required to classify PCI loans as performing or non-accrual, and is dependent on having a reasonable expectation about the timing and amount of cash flows expected to be collected.
 
For acquired loans not considered credit-impaired, the difference between the contractual amounts due (unpaid principal amount) and the fair value is accreted to interest income over the lives of the loans. We elect to recognize the entire fair value discount based on the acquired loan's contractual cash flows using an effective interest rate method for term loans, and a straight line method for revolving lines, as the timing and amount of cash flows under revolving lines are not predictable. The accretion is recognized through the net interest margin. Subsequent to the Acquisition, if the probable and estimable losses for non-PCI loans exceed the amount of the remaining unaccreted discount, the excess is established as an ALLL.
 
For further information regarding our acquired loans, see Note 2 and Note 4.

Transfers of Financial Assets: We have entered into certain participation agreements with other organizations. We account for these transfers of financial assets as sales when control over the transferred financial assets has been surrendered.  Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from us, (2) the transferee has the right to pledge or exchange the assets (or beneficial interests) it received, free of conditions that constrain it from taking advantage of that right, and (3) we do not maintain effective control over the transferred financial assets or third-party beneficial interests related to those transferred assets. No gain or loss has been recognized by us on the sale of these participation interests through December 31, 2011.

Premises and Equipment consist of leasehold improvements, furniture, fixtures and equipment and are stated at cost, less accumulated depreciation and amortization, which are calculated on a straight-line basis over the estimated useful life of the property or the term of the lease (if less).  Furniture and fixtures are depreciated over eight years and equipment is generally depreciated over three to twenty years.  Leasehold improvements are amortized over the lesser of their estimated useful lives or the terms of the leases.  When assets are sold or otherwise disposed of, the cost and related accumulated depreciation or amortization are removed from the accounts and any resulting gain or loss is recognized in income for the period.  The cost of maintenance and repairs is charged to expense as incurred.

Employee Stock Ownership Plan (“ESOP”):  We recognize compensation cost of the ESOP contribution when funds become committed for the purchase of Bancorp's common shares into the ESOP in the year in which the employees render service entitling them to the contribution.  If we contribute stock, the compensation cost is the fair value of the shares when they are committed to be released, i.e. when the number of shares becomes known.  During 2011 and 2010, the Bank only made cash contributions to the ESOP without leveraging.

Income Taxes reported in the consolidated financial statements are computed based on an asset and liability approach.  We recognize the amount of taxes payable or refundable for the current year, and deferred tax assets and liabilities for the future tax consequences that have been recognized in the financial statement or tax returns.  The measurement of tax assets and liabilities is based on the provisions of enacted tax laws. Bancorp files consolidated federal and combined state income tax returns.

Earnings per share (“EPS”) are based upon the weighted average number of common shares outstanding during each year.  The following table shows: (1) weighted average basic shares, (2) potential common shares related to stock options, non-vested restricted stock, and stock warrant, and (3) weighted average diluted shares. Net income available to common stockholders is calculated as net income reduced by dividends accumulated on preferred stock and amortization of discounts on the preferred stock. Basic EPS are calculated by dividing net income available to common stockholders by the weighted average number of common shares outstanding during each period, excluding unvested restricted stock awards.  Diluted EPS are calculated using the weighted average diluted shares. The number of potential common shares included in annual diluted EPS is a year-to-date weighted average of the number of potential common shares included in each quarterly diluted EPS computation under the treasury stock method. We have two forms of outstanding common stock: common stock and unvested restricted stock awards. Holders of restricted stock awards receive non-forfeitable dividends at the same rate as common stockholders and they both share equally in undistributed earnings.
 
(in thousands, except per share data)
 
2011
  
2010
  
2009
 
Weighted average basic shares outstanding
  5,302   5,238   5,182 
Add: Potential common shares related to stock options
  41   46   47 
Potential common shares related to non-vested restricted stock
  4   4   2 
Potential common shares related to warrant
  37   26   11 
Weighted average diluted shares outstanding
  5,384   5,314   5,242 
              
Net income
 $15,564  $13,552  $12,765 
Preferred stock dividends and accretion
  ---   ---   (1,299)
Net income available to common stockholders
 $15,564  $13,552  $11,466 
              
Basic EPS
 $2.94  $2.59  $2.21 
Diluted EPS
 $2.89  $2.55  $2.19 
              
Weighted average anti-dilutive shares not included in the calculation of diluted EPS-Stock options
  70   151   156 

Share-Based Compensation: All share-based payments granted subsequent to January 1, 2006, including stock options and restricted stock, are recognized as stock-based compensation expense in the statements of income based on the grant-date fair value of the award with a corresponding increase in common stock.  The grant-date fair value of the award is amortized over the requisite service period, which is generally the vesting period. The stock-based compensation expense also includes share-based awards granted prior to, but not yet vested as of January 1, 2006, the date we adopted grant-date fair value accounting for share-based payments.

We determine fair value at grant date using the Black-Scholes pricing model that takes into account the stock price at the grant date, the exercise price, the expected life of the option, the volatility of the underlying stock, the expected dividend yield and the risk-free interest rate over the expected life of the option.  The Black-Scholes option valuation model requires the input of highly subjective assumptions, including the expected life of the stock-based award and stock price volatility.  The assumptions used represent Management's best estimates based on historical information, but these estimates involve inherent uncertainties and the application of Management's judgment. As a result, if other assumptions had been used, the recorded stock-based compensation expense could have been materially different from that recorded in its financial statements.  In addition, we are required to estimate the expected forfeiture rates.  If our actual forfeiture rate is materially different from the estimate, the share-based compensation expense could be materially different.
 
Derivative Financial Instruments and Hedging Activities:

Fair Value Hedges: All of our interest rate swap contracts are designated and qualified as fair value hedges. We apply shortcut hedge accounting for one of our interest rate swap contracts, as it is structured to mirror all of the provisions of the hedged loan agreement.  This interest rate swap is carried on the consolidated statements of condition at its fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative).  The change in the fair value of the interest rate swap is recorded in other non-interest income.  As a result of interest rate fluctuations, the hedged fixed-rate loan also gains or loses market value.  The unrealized gain or loss resulting from the change in market value of the hedged-loan is recorded as an adjustment to the hedged loan and offset in other non-interest income. Under shortcut hedge accounting treatment, the change in fair value of the interest rate swap is deemed perfectly offset by the change in fair value of the hedged loan, resulting in zero impact to net income.

Six of our interest rate swap contracts are accounted for using non-shortcut hedge accounting treatment. The interest rate swaps are closely aligned to the terms of the designated fixed-rate loans. The hedging relationships are tested for effectiveness on a quarterly basis. The interest rate swaps are carried on the consolidated statements of condition at their fair value in other assets (when the fair value is positive) or in other liabilities (when the fair value is negative). The changes in the fair value of the interest rate swaps are recorded in interest income. The unrealized gains or losses due to changes in fair value of the hedged fixed-rate loans are recorded as an adjustment to the hedged loans and offset in interest income. For derivative instruments executed with the same counterparty under a master netting arrangement, we do not offset fair value amounts of interest rate swaps in liability position with the ones in asset position. For further detail, see Note 15.
 
Advertising Costs are expensed as incurred.  For the years ended December 31, 2011, 2010, and 2009, advertising costs totaled $589 thousand, $459 thousand, and $528 thousand, respectively.

Comprehensive Income for Bancorp includes net income reported on the statements of income and changes in the fair value of investment securities available for sale, net of related taxes, reported as a component of stockholders' equity.

Segment Information: Our two operating segments include the traditional community banking activities provided through our branch network and our Wealth Management and Trust Services (“WMTS”).  The activities of these two segments are monitored and reported by Management as separate operating segments.  The accounting policies of the segments are the same as those described in this note.  We evaluate segment performance based on total segment revenue and do not allocate expenses between the segments.  WMTS revenues were $1.8 million, $1.5 million and $1.4 million in 2011, 2010 and 2009, respectively, which are included in non-interest income in the statements of income.  Non-interest expenses applicable to WMTS totaled $1.3 million, $1.3 million and $1.2 million in 2011, 2010 and 2009, respectively. The revenues of the community banking segment are reflected in all other income lines in the statements of income.

Use of Estimates: The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent amounts of revenues and expenses during the reporting period.  Actual results could differ from those estimates. Significant accounting estimates reflected in the consolidated financial statements include ALLL, other-than-temporary impairment of investment securities, estimated cash flows on PCI loans,  accounting for income taxes and fair value measurements as discussed in the Notes herein.

Recently Issued Accounting Standards

In December 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2011-11 Balance Sheet (Topic 210) Disclosures about Offsetting Assets and Liabilities. The ASU enhances disclosures in order to improve the comparability of offsetting (netting) assets and liabilities reported in accordance with U.S. generally accepted accounting principles (“GAAP”) and International Financial Reporting Standards (“IFRS”) by requiring entities to disclose both gross information and net information about both instruments and transactions eligible for offset in the statements of condition and instruments and transactions subject to an agreement similar to a master netting arrangement.  This scope would include derivatives, sale and repurchase agreements and reverse sale and repurchase agreements, and securities borrowing and securities lending arrangements.  This ASU is effective for annual periods beginning on or after January 1, 2013, and interim periods within those annual periods. We do not expect this ASU to have a significant impact on our financial condition or results of operations.

In June 2011, the FASB issued ASU No. 2011-05 Comprehensive Income (Topic 220) Presentation of Comprehensive Income. The ASU improves the comparability, consistency, and transparency of financial reporting and increases the prominence of items reported in other comprehensive income. The amendments to Topic 220, Comprehensive Income, require entities to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. Entities are no longer permitted to present components of other comprehensive income as part of the statement of changes in stockholders' equity. Any adjustments for items that are reclassified from other comprehensive income to net income are to be presented on the face of the entities' financial statement regardless of the method of presentation for comprehensive income. The amendments do not change items to be reported in comprehensive income or when an item of other comprehensive income must be reclassified to net income, nor do the amendments change the option to present the components of other comprehensive income either net of related tax effects or before related tax effects. In December 2011, the FASB issued ASU No. 2011-12 Comprehensive Income (Topic 220) Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards which supersedes certain pending paragraphs in ASU No. 2011-05 that pertain to how, when, and where reclassification adjustments are presented. This ASU is effective for fiscal years, and interim periods beginning on or after December 15, 2011. The specific requirement to present items that are reclassified from other comprehensive income to net income alongside their respective components of net income and other comprehensive income is deferred until the FASB re-deliberates. We do not expect this ASU to have an impact on our financial condition or results of operations as it affects presentation only.

In May 2011, the FASB issued ASU No. 2011-04 Fair Value Measurement (Topic 820) Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs. The ASU improves the comparability of fair value measurements presented and disclosed in accordance with U.S. GAAP and IFRS by changing the wording used to describe many of the requirements in U.S GAAP for measuring fair value and disclosure of information. The amendments to this ASU provide explanations on how to measure fair value but do not require any additional fair value measurements and do not establish valuation standards or affect valuation practices outside of financial reporting. The amendments clarify existing fair value measurements and disclosure requirements to include application of the highest and best use and valuation premises concepts; measuring fair value of an instrument classified in a reporting entity's shareholders' equity; and disclosure requirements regarding quantitative information about unobservable inputs categorized within Level 3 of the fair value hierarchy. In addition, clarification is provided for measuring the fair value of financial instruments that are managed in a portfolio and the application of premiums and discounts in a fair value measurement. For public entities, ASU 2011-04 is effective during interim and annual periods beginning after December 15, 2011. We do not expect this ASU to have a significant impact on our financial condition or results of operations.

In April 2011, the FASB issued ASU No. 2011-02, Receivables (Topic 310): A Creditor's Determination of Whether a Restructuring Is a Troubled Debt Restructuring.  The ASU clarifies which loan modifications constitute troubled debt restructurings. It is intended to assist creditors in determining whether a modification of the terms of a receivable meets the criteria to be considered a troubled debt restructuring (“TDR”), both for purposes of recording an impairment loss and for disclosure of a TDR. In evaluating whether a restructuring constitutes a TDR, a creditor must separately conclude that both of the following exist: (a) the restructuring constitutes a concession; and (b) the debtor is experiencing financial difficulties. The amendments to ASU Topic 310, Receivables, clarify the guidance on a creditor's evaluation of whether it has granted a concession and whether a debtor is experiencing financial difficulties. ASU No. 2011-02 is effective for interim and annual periods beginning on or after June 15, 2011, and applies retrospectively to restructurings occurring on or after the beginning of the fiscal year of adoption. We have adopted this ASU in the third quarter of 2011 and provided the applicable disclosure in Note 4 herein.

In December 2010, the FASB issued ASU No. 2010-29, Business Combinations (Topic 805): Disclosure of Supplementary Pro Forma Information for Business Combinations to address diversity in practice about the interpretation of the pro forma revenue and earnings disclosure requirements for business combinations. This ASU is effective prospectively for business combinations for which the acquisition date is on or after the beginning of the first annual reporting period beginning January 1, 2011. It requires a public entity to disclose pro forma revenue and earnings of the combined entity for the current reporting period as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. If comparative financial statements are presented, the pro forma revenue and earnings of the combined entity for the comparable prior reporting period should be reported as though the acquisition date for all business combinations that occurred during the current year had been as of the beginning of the comparable prior annual reporting period. The amendments also expand the supplemental pro forma disclosures to include a description of the nature and amount of material, nonrecurring pro forma adjustments directly attributable to the business combination included in the reported pro forma revenue and earnings. Refer to Note 2 for further information.