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Significant Accounting Policies
12 Months Ended
Mar. 31, 2013
Accounting Policies [Abstract]  
Significant Accounting Policies
1.
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation
Legg Mason, Inc. ("Parent") and its subsidiaries (collectively, "Legg Mason") are principally engaged in providing asset management and related financial services to individuals, institutions, corporations and municipalities.

The consolidated financial statements include the accounts of the Parent and its subsidiaries in which it has a controlling financial interest. Generally, an entity is considered to have a controlling financial interest when it owns a majority of the voting interest in an entity. Legg Mason is also required to consolidate any variable interest entity ("VIE") in which it is considered to be the primary beneficiary. See Note 17 for a further discussion of VIEs. All material intercompany balances and transactions have been eliminated.

Where appropriate, prior years financial statement amounts reflect reclassifications of certain less significant items to conform to the current year presentation.

All references to fiscal 2013, 2012 or 2011, refer to Legg Mason's fiscal year ended March 31 of that year.

Use of Estimates
The consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States of America and the applicable rules and regulations of the Securities and Exchange Commission (the "SEC"), which require management to make assumptions and estimates that affect the amounts reported in the financial statements and accompanying notes, including revenue recognition, valuation of financial instruments, intangible assets and goodwill, stock-based compensation, income taxes, and consolidation. Management believes that the estimates used are reasonable, although actual amounts could differ from the estimates and the differences could have a material impact on the consolidated financial statements.

Consolidation
Legg Mason applies Accounting Standards Codification ("ASC") Topic 810, "Consolidation," (Statement of Financial Accounting Standards No. 167, "Amendments to Financial Accounting Standards Board Interpretation No. 46(R)") ("SFAS No. 167"), relating to the consolidation of VIEs, which includes guidance for determining who should consolidate a VIE, when it is necessary to reassess who should consolidate a VIE, and for the assessment of which entities are VIEs. However, certain investment funds, including money market funds, qualify for a deferral of the application of SFAS No. 167 and continue to be assessed for consolidation under prior guidance, ASC Topic 810, "Consolidation," (Financial Accounting Standards Board Interpretation No. 46(R), "Consolidation of Variable Interest Entities — an interpretation of ARB No. 51") ("FIN 46(R)").

In the normal course of its business, Legg Mason sponsors and is the manager of various types of investment vehicles. Certain of these investment vehicles are considered to be VIEs while others are considered to be voting rights entities ("VREs") subject to traditional consolidation concepts based on ownership rights. For its services, Legg Mason is entitled to receive management fees and may be eligible, under certain circumstances, to receive additional subordinate management fees or other incentive fees. Legg Mason did not sell or transfer assets to any of the VIEs or VREs. Legg Mason's exposure to risk in these entities is generally limited to any equity investment it has made or is required to make and any earned but uncollected management fees. Uncollected management fees from these VIEs were not material at March 31, 2013 and 2012. Legg Mason has not issued any investment performance guarantees to these VIEs, VREs or their investors. Investment vehicles that are considered VREs are consolidated if Legg Mason has a controlling financial interest in the investment vehicle, absent substantive investor rights to replace the manager of the entity (kick-out rights).

Financial Accounting Standards Board Interpretation No. 46(R) (Accounting Standards Update 2010-10, "Amendments to Statement 167 for Certain Investment Funds")
For most sponsored investment funds, including money market funds, which qualify for the deferral of the revised accounting guidance, Legg Mason determines it is the primary beneficiary of a VIE if it absorbs a majority of the VIE's expected losses, or receives a majority of the VIE's expected residual returns, if any. Legg Mason's determination of expected residual returns excludes gross fees paid to a decision maker. It is unlikely that Legg Mason will be the primary beneficiary for VIEs created to manage assets for clients which qualify for the deferral unless Legg Mason's ownership interest in the VIE, including interests of related parties, is substantial, unless Legg Mason may earn significant performance fees from the VIE or unless Legg Mason is considered to have a material implied variable interest. In determining whether it is the primary beneficiary of a VIE which qualifies for the deferral, Legg Mason considers both qualitative and quantitative factors such as the voting rights of the equity holders, economic participation of all parties, including how fees are earned and paid to Legg Mason, related party ownership, guarantees and implied relationships. In determining the primary beneficiary, Legg Mason must make assumptions and estimates about, among other things, the future performance of the underlying assets held by the VIE, including investment returns, cash flows, and credit and interest rate risks. In determining whether a VIE is significant for disclosure purposes, Legg Mason considers the same factors used for determination of the primary beneficiary.

Statement of Financial Accounting Standards No. 167 (Accounting Standards Codification Topic 810, "Consolidation")
Legg Mason sponsors and is the manager for collateralized debt obligation entities ("CDOs") and collateralized loan obligations ("CLOs") that do not qualify for the deferral, and are assessed under the revised accounting guidance, as follows. Legg Mason determines whether it has a variable interest in a VIE by considering if, among other things, it has the obligation to absorb losses, or the right to receive benefits, that are expected to be significant to the VIE. Legg Mason also considers the management fee structure, including the seniority level of its fees, the current and expected economic performance of the entity, as well as other provisions included in the governing documents that might restrict or guarantee an expected loss or residual return. If Legg Mason has a significant variable interest, it determines it is the primary beneficiary of the VIE if it has both the power to direct the activities of the VIE that most significantly impact the entity's economic performance and the obligation to absorb losses, or the right to receive benefits, that potentially could be significant to the VIE.

In evaluating whether it has the obligation to absorb losses, or the right to receive benefits, that potentially could be significant to the VIE, Legg Mason considers factors regarding the design, terms, and characteristics of the investment vehicles, including, but not limited to, the following qualitative factors: if Legg Mason has involvement with the investment vehicle beyond providing management services; if Legg Mason holds equity or debt interests in the investment vehicle; if Legg Mason has transferred any assets to the investment vehicle; if the potential aggregate fees in future periods are insignificant relative to the potential cash flows of the investment vehicle; and if the variability of the expected fees in relation to the potential cash flows of the investment vehicle is more than insignificant.

Under both the revised accounting guidance and prior guidance, Legg Mason must consolidate VIEs for which it is deemed to be the primary beneficiary. As of March 31, 2013 and 2012, Legg Mason's Consolidated Balance Sheets reflect $224,193 and $291,853, respectively, in assets, and $207,835 and $271,707, respectively, in debt issued by a CLO, despite the fact that the assets cannot be used by Legg Mason, nor is Legg Mason obligated for the debt. The consolidation of the CLO had no impact on Net Income Attributable to Legg Mason, Inc.'s common shareholders. See Note 17 for additional information related to the application of the amended VIE consolidation model and the required disclosures.

Cash and Cash Equivalents
Cash equivalents are highly liquid investments with original maturities of 90 days or less.

Restricted Cash
Restricted cash primarily represents long-term escrow deposits and cash collateral required for market hedge arrangements. This cash is not available to Legg Mason for general corporate use.

Financial Instruments
Substantially all financial instruments are reflected in the financial statements at fair value or amounts that approximate fair value, except Legg Mason's long-term debt.

For equity investments where Legg Mason does not control the investee, and where it is not the primary beneficiary of a VIE, but can exert significant influence over the financial and operating policies of the investee, Legg Mason follows the equity method of accounting. The evaluation of whether Legg Mason can exert control or significant influence over the financial and operational policies of an investee requires significant judgment based on the facts and circumstances surrounding each individual investment. Factors considered in these evaluations may include investor voting or other rights, any influence Legg Mason may have on the governing board of the investee, the legal rights of other investors in the entity pursuant to the fund's operating documents and the relationship between Legg Mason and other investors in the entity. Substantially all of Legg Mason's equity method investees are investment companies which record their underlying investments at fair value. Therefore, under the equity method of accounting, Legg Mason's share of the investee's underlying net income or loss predominantly represents fair value adjustments in the investments held by the equity method investee. Legg Mason's share of the investee's net income or loss is based on the most current information available and is recorded as a net gain (loss) on investments within non-operating income (expense). A significant portion of earnings (losses) attributable to Legg Mason's equity method investments has offsetting compensation expense adjustments under revenue sharing agreements and deferred compensation arrangements, therefore, fluctuations in the market value of these investments will not have a material impact on Net Income (Loss) Attributable to Legg Mason, Inc.

Legg Mason also holds debt and marketable equity investments which are classified as available-for-sale, held-to-maturity or trading. Debt and marketable equity securities classified as available-for-sale are reported at fair value and resulting unrealized gains and losses are reflected in stockholders' equity, noncontrolling interests, and comprehensive income (loss), net of applicable income taxes. Debt securities, for which there is positive intent and ability to hold to maturity, are classified as held-to-maturity and are recorded at amortized cost. Amortization of discount or premium is recorded under the interest method and is included in interest income. Certain investment securities, including those held by consolidated investment vehicles ("CIVs"), are classified as trading securities. These investments are recorded at fair value and unrealized gains and losses are included in current period earnings. Realized gains and losses for all investments are included in current period earnings.

Equity and fixed income securities classified as trading or available-for-sale are valued using closing market prices for listed instruments or broker price quotations, when available. Fixed income securities may also be valued using valuation models and estimates based on spreads to actively traded benchmark debt instruments with readily available market prices.

Legg Mason evaluates its non-trading investment securities for "other-than-temporary" impairment. Impairment may exist when the fair value of an investment security has been below the adjusted cost for an extended period of time. If an "other-than-temporary" impairment is determined to exist, the amount of impairment that relates to credit losses is recognized as a charge to income. As of March 31, 2013, 2012 and 2011, the amount of temporary unrealized losses for investment securities not recognized in income was not material.

For investments in illiquid or privately-held securities for which market prices or quotations may not be readily available, including certain investments held by CIVs, management estimates the value of the securities using a variety of methods and resources, including the most current available financial information for the investment and the industry.

In addition to the financial instruments described above and the derivative instruments and CLO loans, bonds and debt, described below, other financial instruments that are carried at fair value or amounts that approximate fair value include Cash and cash equivalents and Short-term borrowings. The fair values of Long-term debt at March 31, 2013 and 2012, aggregated $1,206,166 and $1,214,245, respectively. The carrying value of the five-year term loan approximates fair value because the debt is a credit facility with a variable interest rate based on a short-term rate. These fair values were estimated using publicly quoted market prices or discounted cash flow analyses, as appropriate, and were classified as Level 2 in the fair value hierarchy as described below.

Derivative Instruments
The fair values of derivative instruments are recorded as assets or liabilities on the Consolidated Balance Sheets. Legg Mason has used foreign exchange forwards and interest rate swaps to hedge the risk of movement in exchange rates or interest rates on financial assets on a limited basis. Also, Legg Mason has used futures contracts on index funds to hedge the market risk of certain seed capital investments. In addition, certain CIVs use derivative instruments. However, there is no risk to Legg Mason in relation to the derivative assets and liabilities of the CIVs in excess of its investment in the funds, if any.

Legg Mason has not designated any financial instruments for hedge accounting, as defined in the accounting literature, during the periods presented. The gains or losses on derivative instruments not designated for hedge accounting are included as Other income (expense) or Other non-operating income (expense) in the Consolidated Statements of Income (Loss), with the exception of gains and losses on derivative instruments of CIVs, which are recorded as Other non-operating income (expense) of consolidated investment vehicles, net, in the Consolidated Statements of Income (Loss).

Fair Value Measurements
Accounting guidance for fair value measurements defines fair value and establishes a framework for measuring fair value. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Under accounting guidance, a fair value measurement should reflect all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset, and the risk of non-performance.

The objective of fair value accounting measurements is to reflect, at the date of the financial statements, how much an asset would be sold for in an orderly transaction (as opposed to a distressed or forced transaction) under current market conditions. Specifically, it requires the use of judgment to ascertain if a formerly active market has become inactive and in determining fair values when markets have become inactive. This accounting guidance also relates to other-than-temporary impairments and is intended to bring greater consistency to the timing of impairment recognition. It is also intended to provide greater clarity to investors about the credit and noncredit components of impaired debt securities that are not expected to be sold. The guidance also requires timely disclosures regarding expected cash flows, credit losses, and an aging of securities with unrealized losses.

Fair value accounting guidance also establishes a hierarchy that prioritizes the inputs for valuation techniques used to measure fair value. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs.

Legg Mason's financial instruments are measured and reported at fair value and are classified and disclosed in one of the following categories:

Level 1 — Financial instruments for which prices are quoted in active markets, which, for Legg Mason, include investments in publicly traded mutual funds with quoted market prices and equities listed in active markets.

Level 2 — Financial instruments for which: prices are quoted for similar assets and liabilities in active markets; prices are quoted for identical or similar assets in inactive markets; or prices are based on observable inputs, other than quoted prices, such as models or other valuation methodologies. For Legg Mason, this category may include repurchase agreements, fixed income securities, and certain proprietary fund products. This category also includes CLO loans and derivative liabilities of a CIV.

Level 3 — Financial instruments for which values are based on unobservable inputs, including those for which there is little or no market activity. This category includes investments in partnerships, limited liability companies, private equity funds and CLO debt of a CIV. This category may also include certain proprietary fund products with redemption restrictions.

The valuation of an asset or liability may involve inputs from more than one level of the hierarchy. The level in the fair value hierarchy in which a fair value measurement falls in its entirety is determined based on the lowest level input that is significant to the fair value measurement in its entirety.

Proprietary fund products and certain investments held by CIVs are valued at net asset value ("NAV") determined by the applicable fund administrator. These funds are typically invested in exchange traded investments with observable market prices. Their valuations may be classified as Level 1, Level 2 or Level 3 based on whether the fund is exchange traded, the frequency of the related NAV determinations and the impact of redemption restrictions. For investments in illiquid and privately-held securities (private equity and investment partnerships) for which market prices or quotations may not be readily available, including certain investments held by CIVs, management must estimate the value of the securities using a variety of methods and resources, including the most current available financial information for the investment and the industry to which it applies in order to determine fair value. These valuation processes for illiquid and privately-held securities inherently require management's judgment and are therefore classified in Level 3.

The fair values of CLO loans and bonds are determined based on prices from well-recognized third-party pricing services that utilize available market data and are therefore classified as Level 2. Legg Mason has established controls designed to assess the reasonableness of the prices provided. The fair value of CLO debt is valued using a discounted cash flow methodology. Inputs used to determine the expected cash flows include assumptions about forecasted default and recovery rates that a market participant would use in determining the fair value of the CLO's underlying collateral assets. Given the significance of the unobservable inputs to the fair value measurement, the CLO debt valuation is classified as Level 3.

Exchange traded options are valued using the last sale price or, in the absence of a sale, the last offering price. Options traded over the counter are valued using dealer supplied valuations. Options are classified as Level 1. Futures contracts are valued at the last settlement price at the end of each day on the exchange upon which they are traded and are classified as Level 1.

As a practical expedient, Legg Mason relies on the NAV of certain investments as their fair value. The NAVs that have been provided by investees are derived from the fair values of the underlying investments as of the reporting date.

Any transfers between categories are measured at the beginning of the period.

See Note 3 for additional information regarding fair value measurements.

Fair Value Option
Legg Mason has elected the fair value option for certain eligible assets and liabilities, including corporate loans and debt, of a CLO it is consolidating (see Note 17). Management believes that the use of the fair value option eliminates certain timing differences and better matches the changes in fair value of assets and liabilities related to the CLO. Unrealized gains and losses on assets and liabilities for which the fair value option has been elected are reported in earnings. The decision to elect the fair value option is determined on an instrument by instrument basis, must be applied to an entire instrument, and is irrevocable once elected. Assets and liabilities which are measured at fair value pursuant to the fair value option are included in the assets and liabilities of consolidated investment vehicles in the Consolidated Balance Sheets. At this time, the Company has not elected to apply the fair value option to any of its other financial instruments.

Appropriated Retained Earnings
Upon the election of the fair value option for eligible assets and liabilities of the CLO described above, Legg Mason recorded a cumulative effect adjustment to Appropriated retained earnings for consolidated investment vehicle on the Consolidated Balance Sheets equal to the difference between the fair values of the CLO's assets and liabilities. This difference is recorded as "Appropriated retained earnings" because the investors in the CLO, not Legg Mason shareholders, will ultimately realize any benefits or losses associated with the CLO. Changes in the fair values of the CLO assets and liabilities are recorded as Net income (loss) attributable to noncontrolling interests in the Consolidated Statements of Income (Loss) and Appropriated retained earnings for consolidated investment vehicle in the Consolidated Balance Sheets.

Fixed Assets
Fixed assets primarily consist of equipment, software and leasehold improvements. Equipment consists primarily of communications and technology hardware and furniture and fixtures. Software includes both purchased software and internally developed software. Fixed assets are reported at cost, net of accumulated depreciation and amortization. Depreciation and amortization are determined by use of the straight-line method. Equipment is depreciated over the estimated useful lives of the assets, generally ranging from three to eight years. Software is amortized over the estimated useful lives of the assets, which are generally three years. Leasehold improvements are amortized or depreciated over the initial term of the lease unless options to extend are likely to be exercised. Maintenance and repair costs are expensed as incurred. Internally developed software is reviewed periodically to determine if there is a change in the useful life, or if an impairment in value may exist. If impairment is deemed to exist, the asset is written down to its fair value or is written off if the asset is determined to no longer have any value.

Intangible Assets and Goodwill
Legg Mason's intangible assets consist principally of asset management contracts, contracts to manage proprietary funds and trade names resulting from acquisitions. Intangible assets are amortized over their estimated useful lives, using the straight-line method, unless the asset is determined to have an indefinite useful life. Asset management contracts are amortizable intangible assets that are capitalized at acquisition and amortized over the expected life of the contract. The value of contracts to manage assets in proprietary funds and the value of trade names are classified as indefinite-life intangible assets. The assignment of indefinite lives to proprietary fund contracts is based upon the assumption that there is no foreseeable limit on the contract period to manage proprietary funds due to the likelihood of continued renewal at little or no cost. The assignment of indefinite lives to trade names is based on the assumption that they are expected to generate cash flows indefinitely.

Goodwill represents the excess cost of a business acquisition over the fair value of the net assets acquired. Indefinite-life intangible assets and goodwill are not amortized for book purposes. Given the relative significance of intangible assets and goodwill to the Company's consolidated financial statements, on a quarterly basis Legg Mason considers if triggering events have occurred that may indicate that the fair values have declined below their respective carrying amounts. Triggering events may include significant adverse changes in the Company's business, legal or regulatory environment, loss of key personnel, significant business dispositions, or other events, including changes in economic arrangements with our affiliates that will impact future operating results. If a triggering event has occurred, the Company will perform tests, which include critical reviews of all significant assumptions, to determine if any intangible assets or goodwill are impaired. At a minimum, the Company performs these tests annually at December 31, for indefinite-life intangible assets and goodwill, considering factors such as projected cash flows and revenue multiples, to determine whether the value of the assets is impaired and the indefinite-life assumptions are appropriate. If an asset is impaired, the difference between the value of the asset reflected on the financial statements and its current fair value is recognized as an expense in the period in which the impairment is determined. The fair values of intangible assets subject to amortization are reviewed at each reporting period using an undiscounted cash flow analysis. For intangible assets with indefinite lives, fair value is determined from a market participant's perspective based on projected discounted cash flows, which take into consideration estimates of future fees, profit margins, growth rates, taxes, and discount rates. Goodwill is evaluated at the reporting unit level, and is considered for impairment when the carrying value of the reporting unit exceeds the implied fair value of the reporting unit. In estimating the fair value of the reporting unit, Legg Mason uses valuation techniques principally based on discounted projected cash flows and EBITDA multiples, similar to techniques employed in analyzing the purchase price of an acquisition. Goodwill is deemed to be recoverable at the reporting unit level, which is also the operating segment level that Legg Mason defines as the Global Asset Management segment. This results from the fact that the chief operating decision maker, Legg Mason's Chief Executive Officer, regularly receives discrete financial information at the consolidated Global Asset Management business level and does not regularly receive discrete financial information, such as operating results, at any lower level, such as the asset management affiliate level. Prior to fiscal 2012, Legg Mason's reporting units were its Americas and International divisions. Allocations of goodwill for management restructures, acquisitions and dispositions are based on relative fair values of the respective businesses restructured, added to or sold from the divisions.

See Note 5 for additional information regarding intangible assets and goodwill and Note 16 for additional business segment information.

Translation of Foreign Currencies
Assets and liabilities of foreign subsidiaries that are denominated in non-U.S. dollar functional currencies are translated at exchange rates as of the Consolidated Balance Sheet dates. Revenues and expenses are translated at average exchange rates during the period. The gains or losses resulting from translating foreign currency financial statements into U.S. dollars are included in stockholders' equity and comprehensive income (loss). Gains or losses resulting from foreign currency transactions are included in Net Income (Loss).

Investment Advisory Fees
Legg Mason earns investment advisory fees on assets in separately managed accounts, investment funds, and other products managed for Legg Mason's clients. These fees are primarily based on predetermined percentages of the market value of the assets under management ("AUM"), are recognized over the period in which services are performed and may be billed in advance of the period earned based on AUM at the beginning of the billing period in accordance with the related advisory contracts. Revenue associated with advance billings is deferred and included in Other (current) liabilities in the Consolidated Balance Sheets and is recognized over the period earned. Performance fees may be earned on certain investment advisory contracts for exceeding performance benchmarks on a relative or absolute basis, depending on the product, and are recognized at the end of the performance measurement period. Accordingly, neither advanced billings nor performance fees are subject to reversal. The largest portion of performance fees are earned based on 12-month performance periods that end in differing quarters during the year, with a portion also based on quarterly performance periods. Of Legg Mason's total AUM at each period ended as of March 31, 2013, 2012 and 2011, approximately 6% was in accounts that were eligible to earn performance fees.

Legg Mason has responsibility for the valuation of AUM, substantially all of which is based on observable market data from independent pricing services, fund accounting agents, custodians or brokers.

Distribution and Service Fees Revenue and Expense
Distribution and service fees represent fees earned from funds to reimburse the distributor for the costs of marketing and selling fund shares and servicing proprietary funds and are generally determined as a percentage of client assets. Reported amounts also include fees earned from providing client or shareholder servicing, including record keeping or administrative services to proprietary funds. Distribution fees earned on company-sponsored investment funds are reported as revenue. When Legg Mason enters into arrangements with broker-dealers or other third parties to sell or market proprietary fund shares, distribution and servicing expense is accrued for the amounts owed to third parties, including finders' fees and referral fees paid to unaffiliated broker-dealers or introducing parties. Distribution and servicing expense also includes payments to third parties for certain shareholder administrative services and sub-advisory fees paid to unaffiliated asset managers.

Deferred Sales Commissions
Commissions paid to financial intermediaries in connection with sales of certain classes of company-sponsored mutual funds are capitalized as deferred sales commissions. The asset is amortized over periods not exceeding six years, which represent the periods during which commissions are generally recovered from distribution and service fee revenues and from contingent deferred sales charges ("CDSC") received from shareholders of those funds upon redemption of their shares. CDSC receipts are recorded as distribution and service fee revenue when received and a reduction of the unamortized balance of deferred sales commissions, with a corresponding expense.

Management periodically tests the deferred sales commission asset for impairment by reviewing the changes in value of the related shares, the relevant market conditions and other events and circumstances that may indicate an impairment in value has occurred. If these factors indicate an impairment in value, management compares the carrying value to the estimated undiscounted cash flows expected to be generated by the asset over its remaining life. If management determines that the deferred sales commission asset is not fully recoverable, the asset will be deemed impaired and a loss will be recorded in the amount by which the recorded amount of the asset exceeds its estimated fair value. For the years ended March 31, 2013, 2012 and 2011, no impairment charges were recorded. Deferred sales commissions, included in Other non-current assets in the Consolidated Balance Sheets, were $8,259 and $9,510 at March 31, 2013 and 2012, respectively.

Income Taxes
Deferred income taxes are provided for the effects of temporary differences between the tax basis of an asset or liability and its reported amount in the financial statements. Deferred income tax assets are subject to a valuation allowance if, in management's opinion, it is more likely than not that these benefits will not be realized. Legg Mason's deferred income taxes principally relate to net operating loss and other carryforward benefits, business combinations, amortization of intangible assets and accrued compensation.

Under applicable accounting guidance, a tax benefit should only be recognized if it is more likely than not that the position will be sustained based on its technical merits. A tax position that meets this threshold is measured as the largest amount of benefit that has a greater than 50% likelihood of being realized upon settlement by the appropriate taxing authority having full knowledge of all relevant information.

The Company's accounting policy is to classify interest related to tax matters as interest expense and related penalties, if any, as other operating expense.

See Note 7 for additional information regarding income taxes.

Loss Contingencies
Legg Mason accrues estimates for loss contingencies related to legal actions, investigations, and proceedings, exclusive of legal fees, when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated.

Stock-Based Compensation
Legg Mason's stock-based compensation includes stock options, employee stock purchase plans, restricted stock awards, market-based performance shares payable in common stock and deferred compensation payable in stock. Under its stock compensation plans, Legg Mason issues equity awards to directors, officers, and other key employees.

In accordance with the applicable accounting guidance, compensation expense includes costs for all non-vested share-based awards at their grant date fair value amortized over the respective vesting periods on the straight-line method. Legg Mason determines the fair value of stock options using the Black-Scholes option-pricing model, with the exception of market-based performance grants, which would be valued with a Monte Carlo option-pricing model. See Note 11 for additional information regarding stock-based compensation.

Earnings Per Share
Basic earnings per share attributable to Legg Mason, Inc. common shareholders ("EPS") is calculated by dividing Net Income (Loss) Attributable to Legg Mason, Inc. by the weighted-average number of shares outstanding. The calculation of weighted-average shares includes common shares, shares exchangeable into common stock and certain unvested share-based payment awards that are considered participating securities because they contain nonforfeitable rights to dividends. Diluted EPS is similar to basic EPS, but adjusts for the effect of potential common shares unless they are antidilutive. For periods with a net loss, potential common shares are considered antidilutive. See Note 12 for additional discussion of EPS.

Restructuring Costs
In May 2010, Legg Mason's management committed to a plan to streamline its business model as further described in Note 15. The streamlining initiative was completed as of March 31, 2012. The costs associated with this initiative primarily related to employee termination benefits, incentives to retain employees during the transition period, charges for consolidating leased office space, and contract termination costs. Termination benefits, including severance and retention incentives, were recorded as Transition-related compensation in the Consolidated Statements of Income (Loss). These compensation items required employees to provide future service and were therefore expensed ratably over the required service period. Contract termination and other costs were expensed when incurred.

Capital Plan
In May 2012, Legg Mason implemented a capital plan for the refinancing/restructuring of debt, the completion of the existing share repurchase authorization, and the authorization of further share repurchases. As a result, Net Income (Loss) Attributable to Legg Mason, Inc. for the year ended March 31, 2013, includes a pre-tax loss on debt extinguishment of $68,975 and a net reduction in outstanding debt obligations of $350,000. See Notes 6 and 12 for further details.

Other Developments
On December 12, 2012, the Company modified its employment and other arrangements with the management of its investment management affiliate The Permal Group, Ltd ("Permal"). These modifications included the Company investing in the Permal business in part by sharing certain compensation and other costs that result in lower margins from the business at current revenue levels in exchange for higher margins at significantly increased revenue levels. In addition, the Company and Permal are engaged in implementing a profits interest management equity plan for key employees that will entitle them to participate in 15% of the future growth in value of the Permal business.

Noncontrolling Interests
Noncontrolling interests related to CIVs are classified as redeemable noncontrolling interests if investors in these funds may request withdrawals at any time. There are no nonredeemable noncontrolling interests as of March 31, 2013, 2012 and 2011. As noted above, Net income (loss) attributable to noncontrolling interests in the Consolidated Statements of Income (Loss) also includes Net income (loss) reclassified to appropriated retained earnings for consolidated investment vehicle in the Consolidated Balance Sheets.

Net income (loss) attributable to noncontrolling interests for the years ended March 31, 2013, 2012 and 2011, included the following amounts:
 
 
2013
 
2012
 
2011
Net income attributable to redeemable noncontrolling interests
 
$
971

 
$
8,915

 
$
5,584

Net Income (loss) reclassified to appropriated retained earnings for consolidated investment vehicle
 
(7,392
)
 
1,299

 
(13,744
)
Total
 
$
(6,421
)
 
$
10,214

 
$
(8,160
)


Redeemable noncontrolling interests as of and for the years ended March 31, 2013, 2012 and 2011, included the following amounts:
 
 
2013
 
2012
 
2011
Balance, beginning of period
 
$
24,031

 
$
36,712

 
$
29,577

Net income attributable to redeemable noncontrolling interests
 
971

 
8,915

 
5,584

Net (redemptions/distributions paid to)/subscriptions received from noncontrolling interest holders
 
(3,993
)
 
(21,596
)
 
1,551

Balance, end of period
 
$
21,009

 
$
24,031

 
$
36,712



Recent Accounting Developments
In December 2011, the Financial Accounting Standards Board ("FASB") updated the guidance on disclosures for offsetting assets and liabilities to require both gross and net information about instruments and transactions, including derivatives, repurchase and reverse repurchase and other arrangements that are eligible for offset in the balance sheet. The disclosures will be effective for Legg Mason in fiscal 2014, and are not expected to have a material impact on Legg Mason's consolidated financial statements.

In July 2012, the FASB updated the guidance on the annual indefinite-lived intangible asset tests for impairment. The update permits companies to assess qualitative factors to determine if it is more likely than not that the fair value of the intangible asset is less than its carrying amount as a basis for determining whether it is necessary to perform the currently required quantitative fair value assessment. This update will be effective for Legg Mason in fiscal 2014. This update is not expected to have a material effect on Legg Mason's recorded indefinite-lived assets, and Legg Mason is still evaluating its adoption.

In January 2013, the FASB updated the guidance on a parent's accounting for a cumulative translation adjustment upon the sale, transfer, or liquidation of a foreign subsidiary entity. The update states that a cumulative translation adjustment should be released into earnings only if an entity ceases to have a controlling financial interest in a foreign subsidiary or a group of assets within a foreign subsidiary, and the sale or transfer results in the complete or substantially complete liquidation of the foreign entity. This update will be effective for Legg Mason in fiscal 2014. This update is not expected to have a material effect on Legg Mason's cumulative translation adjustment and Legg Mason is still evaluating the impact of its adoption.