| Label | Element | Value | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BrandywineGLOBAL - Alternative Credit Fund | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk/Return [Heading] | rr_RiskReturnHeading | BRANDYWINEGLOBAL — ALTERNATIVE CREDIT FUND | ||||||||||||||||||
| Objective [Heading] | rr_ObjectiveHeading | Investment objective | ||||||||||||||||||
| Objective, Primary [Text Block] | rr_ObjectivePrimaryTextBlock | The fund’s objective is to provide positive returns independent of market cycles through a high level of income and capital appreciation.
|
||||||||||||||||||
| Expense [Heading] | rr_ExpenseHeading | Fees and expenses of the fund | ||||||||||||||||||
| Expense Narrative [Text Block] | rr_ExpenseNarrativeTextBlock | The accompanying table describes the fees and expenses that you may pay if you buy, hold and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in certain funds distributed through Franklin Distributors, LLC (“Franklin Distributors” or the “Distributor”), the fund’s distributor. More information about these and other discounts is available from your Service Agent, in the fund’s Prospectus on page 33 under the heading “Additional information about each share class,” in the appendix titled “Appendix: Waivers and Discounts Available from Certain Service Agents” on page A‑1 of the fund’s Prospectus and in the fund’s Statement of Additional Information (“SAI”) on page 82 under the heading “Sales Charge Waivers and Reductions for Class A Shares.” “Service Agents” include banks, brokers, dealers, insurance companies, investment advisers, financial consultants or advisers, mutual fund supermarkets and other financial intermediaries that have entered into an agreement with the Distributor to sell shares of the fund. If you purchase Class I shares or Class IS shares through a Service Agent acting solely as an agent on behalf of its customers, that Service Agent may charge you a commission. Such commissions, if any, are not charged by the fund and are not reflected in the fee table or expense example below.
|
||||||||||||||||||
| Shareholder Fees Caption [Text] | rr_ShareholderFeesCaption | Shareholder fees(fees paid directly from your investment) | ||||||||||||||||||
| Operating Expenses Caption [Text] | rr_OperatingExpensesCaption | Annual fund operating expenses (%)(expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination | December 31, 2026 | ||||||||||||||||||
| Portfolio Turnover [Heading] | rr_PortfolioTurnoverHeading | Portfolio turnover. | ||||||||||||||||||
| Portfolio Turnover [Text Block] | rr_PortfolioTurnoverTextBlock | The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 159% of the average value of its portfolio. | ||||||||||||||||||
| Portfolio Turnover, Rate | rr_PortfolioTurnoverRate | 159.00% | ||||||||||||||||||
| Expenses Deferred Charges [Text Block] | rr_ExpensesDeferredChargesTextBlock | You may buy Class A shares in amounts of $500,000 or more at net asset value (without an initial sales charge), but if you redeem those shares within 18 months of their purchase, you will pay a contingent deferred sales charge of 1.00%. | ||||||||||||||||||
| Expense Breakpoint Discounts [Text] | rr_ExpenseBreakpointDiscounts | You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in certain funds distributed through Franklin Distributors, LLC (“Franklin Distributors” or the “Distributor”), the fund’s distributor. | ||||||||||||||||||
| Expense Breakpoint, Minimum Investment Required [Amount] | rr_ExpenseBreakpointMinimumInvestmentRequiredAmount | $ 100,000 | ||||||||||||||||||
| Other Expenses, New Fund, Based on Estimates [Text] | rr_OtherExpensesNewFundBasedOnEstimates | Other expenses for Class R shares are estimated for the current fiscal year. Actual expenses may differ from estimates. | ||||||||||||||||||
| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees | Total annual fund operating expenses do not correlate with the ratios of expenses to average net assets reported in the fund’s financial highlights tables, which reflect the fund’s operating expenses and do not include acquired fund fees and expenses. | ||||||||||||||||||
| Expense Example [Heading] | rr_ExpenseExampleHeading | Example | ||||||||||||||||||
| Expense Example Narrative [Text Block] | rr_ExpenseExampleNarrativeTextBlock | This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes:
Although your actual costs may be higher or lower, based on these assumptions your costs would be:
|
||||||||||||||||||
| Expense Example by, Year, Caption [Text] | rr_ExpenseExampleByYearCaption | Number of years you own your shares ($) | ||||||||||||||||||
| Expense Example, No Redemption, By Year, Caption [Text] | rr_ExpenseExampleNoRedemptionByYearCaption | Number of years you own your shares ($) | ||||||||||||||||||
| Strategy [Heading] | rr_StrategyHeading | Principal investment strategies | ||||||||||||||||||
| Strategy Narrative [Text Block] | rr_StrategyNarrativeTextBlock | Under normal circumstances, the fund seeks to achieve its investment objective by taking a flexible, long and short global credit approach. The fund will rotate amongst the global credit opportunities (long or short) that the subadviser finds most attractive and navigate the credit quality spectrum throughout the different phases of the business cycle. The fund also has the flexibility to hedge or increase exposure to certain risks based on the subadviser’s macroeconomic views. The fund expects to trade actively. The fund may invest in securities, derivatives and other financial instruments of issuers located anywhere in the world. The fund may focus a significant portion of its investments in a single country or currency and may change a country or currency focus at any time based on the opportunities the subadviser finds most attractive. In selecting investment opportunities, the subadviser may consider whether the security is denominated in a currency that the subadviser expects to appreciate versus the U.S. dollar. The fund may hold debt securities of any credit quality, whether rated or unrated. As a general guideline, the fund over the long term normally aims to average at least 50% of its total assets in high yield securities (commonly known as “junk bonds”); however this allocation may range from 0%‑100% at any time. High yield bonds are those rated below investment grade (that is, securities rated below the Baa/BBB categories by at least one Nationally Recognized Statistical Rating Organization) or, if unrated, determined by the subadviser to be of comparable credit quality. The fund’s investments may be rated either below investment grade or investment grade and may include, but are not limited to: corporate bonds; sovereign or government debt securities, including U.S. municipal securities; debt of supranational agencies; convertible securities; agency and non‑agency mortgage-backed securities; asset-backed securities; bank loans; common and preferred stock; and currencies. The fund may invest a significant portion of its investments in certain types of investments, including agency and non‑agency mortgage-backed securities. The fund may invest in stripped mortgage-backed securities and other stripped securities. The fund may enter into dollar rolls (sometimes referred to as mortgage dollar rolls). The fund may hold instruments of any maturity or duration, and the securities may have fixed, floating or variable rates of interest. The maturity of a fixed income security is a measure of the time remaining until the final payment on the security is due. The weighted average effective duration of the fund’s portfolio, including derivatives, is expected to range from ‑10 to 10 years. Duration is a measure of the underlying portfolio’s price sensitivity to changes in prevailing interest rates. The fund may invest in the equities of issuers of any market capitalization. It will not invest more than 20% of its total assets in equity securities. The fund may also enter into various derivative transactions for both hedging and non‑hedging purposes, including as a substitute for buying or selling securities, for purposes of enhancing returns, which transactions may be regarded as speculative. These derivative transactions include, but are not limited to, forwards, futures, options, swaps, credit default swaps and commodity-linked investments. Further, the fund may establish short positions, mainly through, but not limited to derivatives, to a substantial degree. Derivatives will not be used in a way that would cause the fund to violate the guidelines stated in this section, but there are no other percentage limits on the use of derivatives. The fund may use one or more types of these instruments without limit. The fund will not be leveraged through borrowing. However, certain types of derivatives have a leverage-like effect on the portfolio, in that they require a relatively small premium or margin payment in relation to the size of the investment exposure the fund acquires. The fund is classified as “non‑diversified,” which means it may invest a larger percentage of its assets in a smaller number of issuers than a diversified fund.
|
||||||||||||||||||
| Risk [Heading] | rr_RiskHeading | Principal risks | ||||||||||||||||||
| Bar Chart and Performance Table [Heading] | rr_BarChartAndPerformanceTableHeading | Performance | ||||||||||||||||||
| Performance Narrative [Text Block] | rr_PerformanceNarrativeTextBlock | The accompanying bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund’s performance from year to year for Class IS shares. The table shows the average annual total returns of each class of the fund that has been in operation for at least one full calendar year and also compares the fund’s performance with the average annual total returns of a broad measure of market performance and an additional index with characteristics relevant to the fund. Performance for classes other than those shown may vary from the performance shown to the extent the expenses for those classes differ. The fund makes updated performance information, including its current net asset value, available at www.franklintempleton.com/prospectus (select fund and share class), or by calling the fund at 877‑6LM‑FUND/656‑3863. The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. Sales charges are not reflected in the accompanying bar chart, and if those charges were included, returns would be less than those shown.
|
||||||||||||||||||
| Performance Information Illustrates Variability of Returns [Text] | rr_PerformanceInformationIllustratesVariabilityOfReturns | The bar chart shows changes in the fund’s performance from year to year for Class IS shares. The table shows the average annual total returns of each class of the fund that has been in operation for at least one full calendar year and also compares the fund’s performance with the average annual total returns of a broad measure of market performance and an additional index with characteristics relevant to the fund. | ||||||||||||||||||
| Performance Availability Phone [Text] | rr_PerformanceAvailabilityPhone | 877‑6LM‑FUND/656‑3863 | ||||||||||||||||||
| Performance Availability Website Address [Text] | rr_PerformanceAvailabilityWebSiteAddress | www.franklintempleton.com/prospectus (select fund and share class) | ||||||||||||||||||
| Performance Past Does Not Indicate Future [Text] | rr_PerformancePastDoesNotIndicateFuture | The fund’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. | ||||||||||||||||||
| Bar Chart [Heading] | rr_BarChartHeading | Total returns (%) Before taxes | ||||||||||||||||||
| Bar Chart Does Not Reflect Sales Loads [Text] | rr_BarChartDoesNotReflectSalesLoads | Sales charges are not reflected in the accompanying bar chart, and if those charges were included, returns would be less than those shown. | ||||||||||||||||||
| Bar Chart Closing [Text Block] | rr_BarChartClosingTextBlock | Calendar Years ended December 31 Best Quarter (06/30/2020): 6.52 Worst Quarter (03/31/2020): (11.43) | ||||||||||||||||||
| Performance Table Heading | rr_PerformanceTableHeading | Average annual total returns (%)(for periods ended December 31, 2024) | ||||||||||||||||||
| Performance Table Uses Highest Federal Rate | rr_PerformanceTableUsesHighestFederalRate | The after‑tax returns are shown only for Class IS shares, are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. | ||||||||||||||||||
| Performance Table Not Relevant to Tax Deferred | rr_PerformanceTableNotRelevantToTaxDeferred | Actual after‑tax returns depend on an investor’s tax situation and may differ from those shown, and the after‑tax returns shown are not relevant to investors who hold their fund shares through tax‑advantaged arrangements, such as 401(k) plans or individual retirement accounts. | ||||||||||||||||||
| Performance Table One Class of after Tax Shown [Text] | rr_PerformanceTableOneClassOfAfterTaxShown | The after‑tax returns are shown only for Class IS shares, are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after‑tax returns depend on an investor’s tax situation and may differ from those shown, and the after‑tax returns shown are not relevant to investors who hold their fund shares through tax‑advantaged arrangements, such as 401(k) plans or individual retirement accounts. After‑tax returns for classes other than Class IS will vary from returns shown for Class IS. | ||||||||||||||||||
| Performance Table Narrative | rr_PerformanceTableNarrativeTextBlock | The after‑tax returns are shown only for Class IS shares, are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after‑tax returns depend on an investor’s tax situation and may differ from those shown, and the after‑tax returns shown are not relevant to investors who hold their fund shares through tax‑advantaged arrangements, such as 401(k) plans or individual retirement accounts. After‑tax returns for classes other than Class IS will vary from returns shown for Class IS. Important data provider notices and terms are available at www.franklintempletondatasources.com. All data is subject to change.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Risk Nondiversified Status [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Non‑diversification risk. The fund is classified as “non‑diversified,” which means it may invest a larger percentage of its assets in a smaller number of issuers than a diversified fund. To the extent the fund invests its assets in a smaller number of issuers, the fund will be more susceptible to negative events affecting those issuers than a diversified fund.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Risk Lose Money [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | You may lose part or all of your investment in the fund or your investment may not perform as well as other similar investments. | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Risk Not Insured Depository Institution [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | An investment in the fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or by any bank or government agency. | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Foreign investments and emerging markets risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Foreign investments and emerging markets risk. The fund’s investments in securities of foreign issuers or issuers with significant exposure to foreign markets involve additional risk as compared to investments in U.S. securities or issuers with predominantly U.S. exposure, such as less liquid, less transparent, less regulated and more volatile markets. The value of the fund’s investments may decline because of factors affecting the particular issuer as well as foreign markets and issuers generally, such as unfavorable or unsuccessful government actions, reduction of government or central bank support, inadequate accounting standards and auditing and financial recordkeeping requirements, lack of information, political, economic, financial or social instability, terrorism, armed conflicts and other geopolitical events, and the impact of tariffs and other restrictions on trade or economic sanctions. Geopolitical or other events such as nationalization or expropriation could even cause the loss of the fund’s entire investment in one or more countries. In addition, there may be significant obstacles to obtaining information necessary for investigations into or litigation against issuers located in or operating in certain foreign markets, particularly emerging market countries, and shareholders may have limited legal remedies. To the extent the fund focuses its investments in a single country or only a few countries in a particular geographic region, economic, political, regulatory or other conditions affecting such country or region may have a greater impact on fund performance relative to a more geographically diversified fund. The value of investments in securities denominated in foreign currencies increases or decreases as the rates of exchange between those currencies and the U.S. dollar change. Currency conversion costs and currency fluctuations could erase investment gains or add to investment losses. Currency exchange rates can be volatile, and are affected by factors such as general economic and political conditions, the actions of the U.S. and foreign governments or central banks, the imposition of currency controls and speculation. The fund may be unable or may choose not to hedge its foreign currency exposure. Less developed markets are more likely to experience problems with the clearing and settling of trades and the holding of securities by local banks, agents and depositories. Settlement of trades in these markets can take longer than in other markets and the fund may not receive its proceeds from the sale of certain securities for an extended period (possibly several weeks or even longer). The risks of foreign investments are heightened when investing in issuers in emerging market countries. Emerging market countries tend to have economic, political and legal systems that are less developed and are less stable than those of more developed countries. Their economies tend to be less diversified than those of more developed countries. They typically have fewer medical and economic resources than more developed countries, and thus they may be less able to control or mitigate the effects of a pandemic or a natural disaster. They are often particularly sensitive to market movements because their market prices tend to reflect speculative expectations. Low trading volumes may result in a lack of liquidity and in extreme price volatility.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Market events risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Market events risk. The market values of securities or other assets will fluctuate, sometimes sharply and unpredictably, due to factors such as economic events, governmental actions or intervention, actions taken by the U.S. Federal Reserve or foreign central banks, market disruptions caused by trade disputes, labor strikes or other factors, political developments, armed conflicts, economic sanctions and countermeasures in response to sanctions, major cybersecurity events, the global and domestic effects of widespread or local health, weather or climate events, and other factors that may or may not be related to the issuer of the security or other asset. Economies and financial markets throughout the world are increasingly interconnected. Economic, financial or political events, trading and tariff arrangements, public health events, terrorism, wars, natural disasters and other circumstances in one country or region could have profound impacts on global economies or markets. As a result, whether or not the fund invests in securities of issuers located in or with significant exposure to the countries or markets directly affected, the value and liquidity of the fund’s investments may be negatively affected. Ongoing armed conflicts between Russia and Ukraine in Europe and among Israel, Hamas and other militant groups in the Middle East have caused and could continue to cause significant market disruptions and volatility. The hostilities and sanctions resulting from those hostilities have and could continue to have a significant impact on certain fund investments as well as fund performance and liquidity. Following Russia’s invasion of Ukraine in 2022, Russian stocks lost all, or nearly all, of their market value. Other securities or markets could be similarly affected by past or future geopolitical or other events or conditions. Furthermore, events involving limited liquidity, defaults, non‑performance or other adverse developments that affect one industry, such as the financial services industry, or concerns or rumors about any events of these kinds, have in the past and may in the future lead to market-wide liquidity problems, may spread to other industries, and could negatively affect the value and liquidity of the fund’s investments. Raising the ceiling on U.S. government debt has become increasingly politicized. Any failure to increase the total amount that the U.S. government is authorized to borrow could lead to a default on U.S. government obligations, with unpredictable consequences for economies and markets in the U.S. and elsewhere. Recently, inflation and interest rates have been volatile and may increase in the future. These circumstances could adversely affect the value and liquidity of the fund’s investments, impair the fund’s ability to satisfy redemption requests, and negatively impact the fund’s performance. The United States and other countries are periodically involved in disputes over trade and other matters, which may result in tariffs, investment restrictions and adverse impacts on affected companies and securities. For example, the United States has imposed tariffs and other trade barriers on Chinese exports, has restricted sales of certain categories of goods to China, and has established barriers to investments in China. Trade disputes may adversely affect the economies of the United States and its trading partners, as well as companies directly or indirectly affected and financial markets generally. The United States government has prohibited U.S. persons from investing in Chinese companies designated as related to the Chinese military. These and possible future restrictions could limit the fund’s opportunities for investment and require the sale of securities at a loss or make them illiquid. Moreover, the Chinese government is involved in a longstanding dispute with Taiwan that has included threats of invasion. If the political climate between the United States and China does not improve or continues to deteriorate, if China were to attempt unification of Taiwan by force, or if other geopolitical conflicts develop or get worse, economies, markets and individual securities may be severely affected both regionally and globally, and the value of the fund’s assets may go down.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Issuer risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Issuer risk. The market price of a security held by the fund can go up or down more than the market as a whole and can perform differently from the value of the market as a whole due to factors specifically relating to the security’s issuer, such as disappointing earnings reports by the issuer, unsuccessful products or services, loss of major customers, changes in management, corporate actions, negative perception in the marketplace, or major litigation or changes in government regulations affecting the issuer or the competitive environment. An individual security may also be affected by factors relating to the industry or sector of the issuer or the securities markets as a whole, and conversely an industry or sector or the securities markets may be affected by a change in financial condition or other event affecting a single issuer. The fund may experience a substantial or complete loss on an individual security.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Portfolio management risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Portfolio management risk. The value of your investment may decrease if the subadviser’s judgment about the quality, relative yield, value or market trends affecting a particular security, industry, sector or region, or about interest rates or other market factors, is incorrect or does not produce the desired results, or if there are imperfections, errors or limitations in the models, tools and data used by the subadviser. In addition, the fund’s investment strategies or policies may change from time to time. Those changes may not lead to the results intended by the subadviser and could have an adverse effect on the value or performance of the fund.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Valuation risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Valuation risk. The sales price the fund could receive for any particular portfolio investment may differ from the fund’s valuation of the investment, particularly for securities that trade in thin or volatile markets or that are valued using a fair value methodology. These differences may increase significantly and affect fund investments more broadly during periods of market volatility. Investors who purchase or redeem fund shares on days when the fund is holding fair-valued securities may receive fewer or more shares or lower or higher redemption proceeds than they would have received if the fund had not fair-valued securities or had used a different valuation methodology. The fund’s ability to value its investments may be impacted by technological issues and/or errors by pricing services or other third party service providers. The valuation of the fund’s investments involves subjective judgment, which may prove to be incorrect.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Industry or sector focus risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Industry or sector focus risk. The fund may be susceptible to an increased risk of loss, including losses due to events that adversely affect the fund’s investments more than the market as a whole, to the extent that the fund may, from time to time, have greater exposure to the securities of a particular issuer or issuers within the same industry or sector.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Illiquidity risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Illiquidity risk. Some assets held by the fund may be or become impossible or difficult to sell and some assets that the fund wants to invest in may be impossible or difficult to purchase, particularly during times of market turmoil or due to adverse changes in the conditions of a particular issuer. These illiquid assets may also be volatile and difficult to value. Markets may become illiquid quickly. Markets may become illiquid when, for instance, there are few, if any, interested buyers or sellers or when dealers are unwilling or unable to make a market for certain securities. As a general matter, dealers have been less willing to make markets in recent years. Federal banking regulations may also cause certain dealers to reduce their inventories of certain securities, which may further decrease the fund’s ability to buy or sell such securities. During times of market turmoil, there have been, and may be, no buyers or sellers for securities in entire asset classes. If the fund is forced to sell an illiquid asset to meet redemption requests or other cash needs, or to try to limit losses, the fund may be forced to sell at a substantial loss or may not be able to sell at all. The fund may not receive its proceeds from the sale of certain securities for an extended period (for example, several weeks or even longer).
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Cybersecurity risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Cybersecurity risk. Like other funds and business enterprises, the fund, the manager, the subadviser and their service providers are subject to the risk of cyber incidents occurring from time to time. Cybersecurity incidents, whether intentionally caused by third parties or otherwise, may allow an unauthorized party to gain access to fund assets, fund or customer data (including private shareholder information) or proprietary information, cause the fund, the manager, the subadviser and/or their service providers (including, but not limited to, fund accountants, custodians, sub‑custodians, transfer agents and financial intermediaries) to suffer data breaches, data corruption or loss of operational functionality, or prevent fund investors from purchasing, redeeming or exchanging shares, receiving distributions or receiving timely information regarding the fund or their investment in the fund. The fund, the manager, and the subadviser have limited ability to prevent or mitigate cybersecurity incidents affecting third party service providers, and such third party service providers may have limited indemnification obligations to the fund, the manager, and/or the subadviser. Cybersecurity incidents may result in financial losses to the fund and its shareholders, and substantial costs may be incurred in order to prevent or mitigate any future cybersecurity incidents. Issuers of securities in which the fund invests are also subject to cybersecurity risks, and the value of these securities could decline if the issuers experience cybersecurity incidents. New ways to carry out cyber attacks continue to develop. There is a chance that some risks have not been identified or prepared for, or that an attack may not be detected, which puts limitations on the fund’s ability to plan for or respond to a cyber attack.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Market and interest rate risks [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Market and interest rate risk. The market prices of securities held by the fund may go up or down, sometimes rapidly or unpredictably. If the market prices of the fund’s securities fall, the value of your investment in the fund will decline. The market price of a security may fall due to general market conditions, such as real or perceived adverse economic or political conditions or trends, tariffs and trade disruptions, inflation, substantial economic downturn or recession, changes in interest rates, lack of liquidity in the bond markets or adverse investor sentiment. Changes in market conditions will not typically have the same impact on all types of securities. The value of your investment will generally go down when interest rates rise. A rise in rates tends to have a greater impact on the prices of longer term or duration securities. A general rise in interest rates may cause investors to move out of fixed income securities on a large scale, which could adversely affect the price and liquidity of fixed income securities and could also result in increased redemptions from the fund. Recently, there have been inflationary price movements. As a result, fixed income securities markets may experience heightened levels of interest rate volatility and liquidity risk. The U.S. government and the U.S. Federal Reserve, as well as certain foreign governments and central banks, have from time to time taken steps to support financial markets. The U.S. government and the U.S. Federal Reserve may, conversely, reduce market support activities, including by taking action intended to increase certain interest rates. This and other government intervention may not work as intended, particularly if the efforts are perceived by investors as being unlikely to achieve the desired results. Changes in government activities in this regard, such as changes in interest rate policy, can negatively affect financial markets generally, increase market volatility and reduce the value and liquidity of securities in which the fund invests. The maturity of a security may be significantly longer than its duration. A security’s maturity and other features may be more relevant than its duration in determining the security’s sensitivity to other factors affecting the issuer or markets generally such as changes in credit quality or in the yield premium that the market may establish for certain types of securities.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Credit risks [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Credit risk. If an issuer or guarantor of a security held by the fund or a counterparty to a financial contract with the fund defaults or its credit is downgraded, or is perceived to be less creditworthy, or if the value of the assets underlying a security declines, the value of your investment will typically decline. Changes in actual or perceived creditworthiness may occur quickly. The fund could be delayed or hindered in its enforcement of rights against an issuer, guarantor or counterparty. Subordinated securities (meaning securities that rank below other securities with respect to claims on the issuer’s assets) are more likely to suffer a credit loss than non‑subordinated securities of the same issuer and will be disproportionately affected by a default, downgrade or perceived decline in creditworthiness.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | High yield junk bonds risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | High yield (“junk”) bonds risk. High yield bonds are generally subject to greater credit risks than higher-grade bonds, including the risk of default on the payment of interest or principal. High yield bonds are considered speculative, typically have lower liquidity and are more difficult to value than higher grade bonds. High yield bonds tend to be volatile and more susceptible to adverse events, credit downgrades and negative sentiments and may be difficult to sell at a desired price, or at all, during periods of uncertainty or market turmoil.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Prepayment or call risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Prepayment or call risk. Many issuers have a right to prepay their fixed income securities. Issuers may be more likely to prepay their securities if interest rates fall. If this happens, the fund may not benefit from the rise in the market price of the securities that normally accompanies a decline in interest rates, and will be forced to reinvest prepayment proceeds at a time when yields on securities available in the market are lower than the yield on prepaid securities. The fund may also lose any premium it paid to purchase the securities.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Mortgage backed and asset backed securities risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Mortgage-backed and asset-backed securities risk. When market interest rates increase, the market values of mortgage-backed securities decline. At the same time, mortgage refinancings and prepayments slow, which lengthens the effective duration of these securities. As a result, the negative effect of the interest rate increase on the market value of mortgage-backed securities is usually more pronounced than it is for other types of fixed income securities, potentially increasing the volatility of the fund. Conversely, when market interest rates decline, while the value of mortgage-backed securities may increase, the rate of prepayment of the underlying mortgages also tends to increase, which shortens the effective duration of these securities. Mortgage-backed securities are also subject to the risk that underlying borrowers will be unable to meet their obligations and the value of property that secures the mortgage may decline in value and be insufficient, upon foreclosure, to repay the associated loan. Investments in asset-backed securities are subject to similar risks. The ability of an issuer of asset-backed securities to enforce its security interest in the underlying assets may be limited, and therefore certain asset-backed securities present a heightened level of risk.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Extension risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Extension risk. When interest rates rise, repayments of fixed income securities, particularly asset- and mortgage- backed securities, may occur more slowly than anticipated, extending the effective duration of these fixed income securities at below market interest rates and causing their market prices to decline more than they would have declined due to the rise in interest rates alone. This may cause the fund’s share price to be more volatile.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Derivatives risks [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Derivatives risk. Using derivatives can increase fund losses and reduce opportunities for gains, such as when market prices, interest rates, currencies, or the derivatives themselves behave in a way not anticipated by the fund’s subadviser. Using derivatives also can have a leveraging effect and increase fund volatility. Certain derivatives have the potential for unlimited loss, regardless of the size of the initial investment. Derivatives may not be available at the time or price desired, may be difficult to sell, unwind or value, and the counterparty may default on its obligations to the fund. Derivatives are generally subject to the risks applicable to the assets, rates, indices or other indicators underlying the derivative. The value of a derivative may fluctuate more than the underlying assets, rates, indices or other indicators to which it relates. Use of derivatives may have different tax consequences for the fund than an investment in the underlying asset, and those differences may affect the amount, timing and character of income distributed to shareholders. The U.S. government and non‑U.S. governments have adopted and implemented regulations governing derivatives markets, including mandatory clearing of certain derivatives, margin and reporting requirements. The ultimate impact of the regulations remains unclear. Additional regulation of derivatives may make derivatives more costly, limit their availability or utility, otherwise adversely affect their performance or disrupt markets. Credit default swap contracts involve heightened risks and may result in losses to the fund. Credit default swaps may be illiquid and difficult to value. When the fund sells credit protection via a credit default swap, credit risk increases since the fund has exposure to both the issuer whose credit is the subject of the swap and the counterparty to the swap.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Leverage risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Leverage risk. The value of your investment may be more volatile if the fund borrows or uses instruments, such as derivatives, that have a leveraging effect on the fund’s portfolio. Other risks described in the Prospectus also will be compounded because leverage generally magnifies the effect of a change in the value of an asset and creates a risk of loss of value on a larger pool of assets than the fund would otherwise have had. The fund may also have to sell assets at inopportune times to satisfy its obligations created by the use of leverage or derivatives. The use of leverage is considered to be a speculative investment practice and may result in the loss of a substantial amount, and possibly all, of the fund’s assets. In addition, the fund’s portfolio will be leveraged if it exercises its right to delay payment on a redemption, and losses will result if the value of the fund’s assets declines between the time a redemption request is deemed to be received by the fund and the time the fund liquidates assets to meet redemption requests. The subadviser expects that the implementation of the fund’s investment strategy, which may include a significant level of investment in derivatives, will have the effect of creating leverage in the fund in that the fund’s potential exposure may be greater than its net assets.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Short positions risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Short positions risk. Short positions involve leverage and there is no limit on the potential amount of loss on a security that is sold short. The fund may suffer significant losses if assets that the fund sells short appreciate rather than depreciate in value. The amount of any gain will be decreased, and the amount of any loss increased, by the amount of the premium, dividends, interest, or expenses the fund may be required to pay in connection with the short sale.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Redemption risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Redemption risk. The fund may experience heavy redemptions that could cause the fund to liquidate its assets at inopportune times or unfavorable prices or increase or accelerate taxable gains or transaction costs and may negatively affect the fund’s net asset value, performance, or ability to satisfy redemptions in a timely manner, which could cause the value of your investment to decline.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Portfolio turnover risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Portfolio turnover risk. Active and frequent trading will increase a shareholder’s tax liability and the fund’s transaction costs, which could detract from fund performance.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Commodities risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Commodities risk. Commodity prices can be extremely volatile and are affected by many factors. Exposure to commodities can cause the value of the fund’s shares to decline or fluctuate in a rapid and unpredictable manner. Investments in commodity-linked instruments may subject the fund to greater volatility than investments in traditional securities or the commodity, commodities or commodity index to which they relate. The value of commodities and commodity-linked instruments may be affected, for example, by changes in overall market movements, real or perceived inflationary trends, commodity index volatility, prolonged or intense speculation by investors, changes in interest rates or factors affecting a particular industry or commodity, such as drought, floods, other weather phenomena, livestock disease, embargoes, tariffs, economic sanctions, armed conflicts and international economic, political and regulatory developments. The prices of commodities can also fluctuate widely due to supply and demand disruptions in major producing or consuming regions. The fund’s ability to gain exposure to commodities using derivatives or other means may be limited by tax considerations. If the fund has taken a long or short position in a commodity using futures contracts or other derivatives, it might be required to take or make delivery of the underlying commodity under undesirable circumstances. This would cause the fund to incur a number of costs. To the extent the fund focuses its investments in a particular commodity, the fund will be more susceptible to risks associated with the particular commodity. No active trading market may exist for certain commodities investments.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Energy sector risk [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Energy sector risk. The market value of securities in the energy sector may decline for many reasons, including, among others, changes in energy prices, energy supply and demand, government regulations and energy conservation efforts.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Transactions by affiliated funds and by other significant investors [Member] | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | Transactions by affiliated funds and by other significant investors. The fund may be an investment option for mutual funds and exchange-traded funds (“ETFs”) that are managed by Franklin Templeton Fund Adviser, LLC and its affiliates, unaffiliated mutual funds and ETFs and other investors with substantial investments in the fund. As a result, from time to time, the fund may experience relatively large redemptions and could be required to liquidate its assets at inopportune times or at a loss or depressed value, which could cause the value of your investment to decline. These transactions may also accelerate the realization of taxable income to shareholders if such sales of investments result in gains, and may also increase transaction costs. Similarly, large fund share purchases may adversely affect the fund’s performance to the extent that the fund is delayed in investing new cash or otherwise maintains a larger cash position than it ordinarily would.
|
||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Class A | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Maximum sales charge (load) imposed on purchases (as a % of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | 3.75% | [1],[2] | |||||||||||||||||
| Maximum deferred sales charge (load) (as a % of the lower of net asset value at purchase or redemption) | rr_MaximumDeferredSalesChargeOverOther | none | [3],[4] | |||||||||||||||||
| Small account fee ($) | rr_MaximumAccountFee | $ 15 | [5] | |||||||||||||||||
| Management fees | rr_ManagementFeesOverAssets | 1.15% | ||||||||||||||||||
| Distribution and/or service (12b-1) fees | rr_DistributionAndService12b1FeesOverAssets | 0.25% | ||||||||||||||||||
| Other expenses | rr_OtherExpensesOverAssets | 0.51% | ||||||||||||||||||
| Acquired fund fees and expenses | rr_AcquiredFundFeesAndExpensesOverAssets | 0.01% | ||||||||||||||||||
| Total annual fund operating expenses | rr_ExpensesOverAssets | 1.92% | [6] | |||||||||||||||||
| Fees waived and/or expenses reimbursed | rr_FeeWaiverOrReimbursementOverAssets | (0.26%) | [7] | |||||||||||||||||
| Total annual fund operating expenses after waiving fees and/or reimbursing expenses | rr_NetExpensesOverAssets | 1.66% | [8] | |||||||||||||||||
| 1 year | rr_ExpenseExampleYear01 | $ 537 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleYear03 | 931 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleYear05 | 1,349 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleYear10 | 2,514 | ||||||||||||||||||
| 1 year | rr_ExpenseExampleNoRedemptionYear01 | 537 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleNoRedemptionYear03 | 931 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleNoRedemptionYear05 | 1,349 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleNoRedemptionYear10 | $ 2,514 | ||||||||||||||||||
| 1 year | rr_AverageAnnualReturnYear01 | 1.98% | ||||||||||||||||||
| 5 years | rr_AverageAnnualReturnYear05 | 0.23% | ||||||||||||||||||
| 10 years | rr_AverageAnnualReturnYear10 | 1.44% | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Class C | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Maximum sales charge (load) imposed on purchases (as a % of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | none | ||||||||||||||||||
| Maximum deferred sales charge (load) (as a % of the lower of net asset value at purchase or redemption) | rr_MaximumDeferredSalesChargeOverOther | 1.00% | [3] | |||||||||||||||||
| Small account fee ($) | rr_MaximumAccountFee | $ 15 | [5] | |||||||||||||||||
| Management fees | rr_ManagementFeesOverAssets | 1.15% | ||||||||||||||||||
| Distribution and/or service (12b-1) fees | rr_DistributionAndService12b1FeesOverAssets | 1.00% | ||||||||||||||||||
| Other expenses | rr_OtherExpensesOverAssets | 0.44% | ||||||||||||||||||
| Acquired fund fees and expenses | rr_AcquiredFundFeesAndExpensesOverAssets | 0.01% | ||||||||||||||||||
| Total annual fund operating expenses | rr_ExpensesOverAssets | 2.60% | [6] | |||||||||||||||||
| Fees waived and/or expenses reimbursed | rr_FeeWaiverOrReimbursementOverAssets | (0.19%) | [7] | |||||||||||||||||
| Total annual fund operating expenses after waiving fees and/or reimbursing expenses | rr_NetExpensesOverAssets | 2.41% | [8] | |||||||||||||||||
| 1 year | rr_ExpenseExampleYear01 | $ 344 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleYear03 | 790 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleYear05 | 1,363 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleYear10 | 2,754 | ||||||||||||||||||
| 1 year | rr_ExpenseExampleNoRedemptionYear01 | 244 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleNoRedemptionYear03 | 790 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleNoRedemptionYear05 | 1,363 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleNoRedemptionYear10 | $ 2,754 | ||||||||||||||||||
| 1 year | rr_AverageAnnualReturnYear01 | 4.17% | ||||||||||||||||||
| 5 years | rr_AverageAnnualReturnYear05 | 0.37% | ||||||||||||||||||
| 10 years | rr_AverageAnnualReturnYear10 | 1.15% | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Class FI | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Maximum sales charge (load) imposed on purchases (as a % of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | none | ||||||||||||||||||
| Maximum deferred sales charge (load) (as a % of the lower of net asset value at purchase or redemption) | rr_MaximumDeferredSalesChargeOverOther | none | [3] | |||||||||||||||||
| Small account fee ($) | rr_MaximumAccountFee | none | [5] | |||||||||||||||||
| Management fees | rr_ManagementFeesOverAssets | 1.15% | ||||||||||||||||||
| Distribution and/or service (12b-1) fees | rr_DistributionAndService12b1FeesOverAssets | 0.25% | ||||||||||||||||||
| Other expenses | rr_OtherExpensesOverAssets | 0.57% | ||||||||||||||||||
| Acquired fund fees and expenses | rr_AcquiredFundFeesAndExpensesOverAssets | 0.01% | ||||||||||||||||||
| Total annual fund operating expenses | rr_ExpensesOverAssets | 1.98% | [6] | |||||||||||||||||
| Fees waived and/or expenses reimbursed | rr_FeeWaiverOrReimbursementOverAssets | (0.32%) | [7] | |||||||||||||||||
| Total annual fund operating expenses after waiving fees and/or reimbursing expenses | rr_NetExpensesOverAssets | 1.66% | [8] | |||||||||||||||||
| 1 year | rr_ExpenseExampleYear01 | $ 169 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleYear03 | 591 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleYear05 | 1,038 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleYear10 | 2,281 | ||||||||||||||||||
| 1 year | rr_ExpenseExampleNoRedemptionYear01 | 169 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleNoRedemptionYear03 | 591 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleNoRedemptionYear05 | 1,038 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleNoRedemptionYear10 | $ 2,281 | ||||||||||||||||||
| 1 year | rr_AverageAnnualReturnYear01 | 5.75% | ||||||||||||||||||
| 5 years | rr_AverageAnnualReturnYear05 | 1.02% | ||||||||||||||||||
| 10 years | rr_AverageAnnualReturnYear10 | 1.83% | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Class R | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Maximum sales charge (load) imposed on purchases (as a % of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | none | ||||||||||||||||||
| Maximum deferred sales charge (load) (as a % of the lower of net asset value at purchase or redemption) | rr_MaximumDeferredSalesChargeOverOther | none | [3] | |||||||||||||||||
| Small account fee ($) | rr_MaximumAccountFee | none | [5] | |||||||||||||||||
| Management fees | rr_ManagementFeesOverAssets | 1.15% | ||||||||||||||||||
| Distribution and/or service (12b-1) fees | rr_DistributionAndService12b1FeesOverAssets | 0.50% | ||||||||||||||||||
| Other expenses | rr_OtherExpensesOverAssets | 0.61% | [9] | |||||||||||||||||
| Acquired fund fees and expenses | rr_AcquiredFundFeesAndExpensesOverAssets | 0.01% | ||||||||||||||||||
| Total annual fund operating expenses | rr_ExpensesOverAssets | 2.27% | [6] | |||||||||||||||||
| Fees waived and/or expenses reimbursed | rr_FeeWaiverOrReimbursementOverAssets | (0.31%) | [7] | |||||||||||||||||
| Total annual fund operating expenses after waiving fees and/or reimbursing expenses | rr_NetExpensesOverAssets | 1.96% | [8] | |||||||||||||||||
| 1 year | rr_ExpenseExampleYear01 | $ 199 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleYear03 | 680 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleYear05 | 1,187 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleYear10 | 2,581 | ||||||||||||||||||
| 1 year | rr_ExpenseExampleNoRedemptionYear01 | 199 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleNoRedemptionYear03 | 680 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleNoRedemptionYear05 | 1,187 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleNoRedemptionYear10 | $ 2,581 | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Class I | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Maximum sales charge (load) imposed on purchases (as a % of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | none | ||||||||||||||||||
| Maximum deferred sales charge (load) (as a % of the lower of net asset value at purchase or redemption) | rr_MaximumDeferredSalesChargeOverOther | none | [3] | |||||||||||||||||
| Small account fee ($) | rr_MaximumAccountFee | none | [5] | |||||||||||||||||
| Management fees | rr_ManagementFeesOverAssets | 1.15% | ||||||||||||||||||
| Distribution and/or service (12b-1) fees | rr_DistributionAndService12b1FeesOverAssets | none | ||||||||||||||||||
| Other expenses | rr_OtherExpensesOverAssets | 0.59% | ||||||||||||||||||
| Acquired fund fees and expenses | rr_AcquiredFundFeesAndExpensesOverAssets | 0.01% | ||||||||||||||||||
| Total annual fund operating expenses | rr_ExpensesOverAssets | 1.75% | [6] | |||||||||||||||||
| Fees waived and/or expenses reimbursed | rr_FeeWaiverOrReimbursementOverAssets | (0.39%) | [7] | |||||||||||||||||
| Total annual fund operating expenses after waiving fees and/or reimbursing expenses | rr_NetExpensesOverAssets | 1.36% | [8] | |||||||||||||||||
| 1 year | rr_ExpenseExampleYear01 | $ 138 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleYear03 | 512 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleYear05 | 911 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleYear10 | 2,028 | ||||||||||||||||||
| 1 year | rr_ExpenseExampleNoRedemptionYear01 | 138 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleNoRedemptionYear03 | 512 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleNoRedemptionYear05 | 911 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleNoRedemptionYear10 | $ 2,028 | ||||||||||||||||||
| 1 year | rr_AverageAnnualReturnYear01 | 6.11% | ||||||||||||||||||
| 5 years | rr_AverageAnnualReturnYear05 | 1.37% | ||||||||||||||||||
| 10 years | rr_AverageAnnualReturnYear10 | 2.18% | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Class IS | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| Maximum sales charge (load) imposed on purchases (as a % of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | none | ||||||||||||||||||
| Maximum deferred sales charge (load) (as a % of the lower of net asset value at purchase or redemption) | rr_MaximumDeferredSalesChargeOverOther | none | [3] | |||||||||||||||||
| Small account fee ($) | rr_MaximumAccountFee | none | [5] | |||||||||||||||||
| Management fees | rr_ManagementFeesOverAssets | 1.15% | ||||||||||||||||||
| Distribution and/or service (12b-1) fees | rr_DistributionAndService12b1FeesOverAssets | none | ||||||||||||||||||
| Other expenses | rr_OtherExpensesOverAssets | 0.41% | ||||||||||||||||||
| Acquired fund fees and expenses | rr_AcquiredFundFeesAndExpensesOverAssets | 0.01% | ||||||||||||||||||
| Total annual fund operating expenses | rr_ExpensesOverAssets | 1.57% | [6] | |||||||||||||||||
| Fees waived and/or expenses reimbursed | rr_FeeWaiverOrReimbursementOverAssets | (0.31%) | [7] | |||||||||||||||||
| Total annual fund operating expenses after waiving fees and/or reimbursing expenses | rr_NetExpensesOverAssets | 1.26% | [8] | |||||||||||||||||
| 1 year | rr_ExpenseExampleYear01 | $ 128 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleYear03 | 465 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleYear05 | 825 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleYear10 | 1,841 | ||||||||||||||||||
| 1 year | rr_ExpenseExampleNoRedemptionYear01 | 128 | ||||||||||||||||||
| 3 years | rr_ExpenseExampleNoRedemptionYear03 | 465 | ||||||||||||||||||
| 5 years | rr_ExpenseExampleNoRedemptionYear05 | 825 | ||||||||||||||||||
| 10 years | rr_ExpenseExampleNoRedemptionYear10 | $ 1,841 | ||||||||||||||||||
| 2015 | rr_AnnualReturn2015 | (5.76%) | ||||||||||||||||||
| 2016 | rr_AnnualReturn2016 | 5.90% | ||||||||||||||||||
| 2017 | rr_AnnualReturn2017 | 9.36% | ||||||||||||||||||
| 2018 | rr_AnnualReturn2018 | 0.18% | ||||||||||||||||||
| 2019 | rr_AnnualReturn2019 | 6.60% | ||||||||||||||||||
| 2020 | rr_AnnualReturn2020 | 1.34% | ||||||||||||||||||
| 2021 | rr_AnnualReturn2021 | 5.01% | ||||||||||||||||||
| 2022 | rr_AnnualReturn2022 | (2.07%) | ||||||||||||||||||
| 2023 | rr_AnnualReturn2023 | (2.88%) | ||||||||||||||||||
| 2024 | rr_AnnualReturn2024 | 6.22% | ||||||||||||||||||
| Highest Quarterly Return, Label | rr_HighestQuarterlyReturnLabel | Best Quarter | ||||||||||||||||||
| Highest Quarterly Return, Date | rr_BarChartHighestQuarterlyReturnDate | Jun. 30, 2020 | ||||||||||||||||||
| Highest Quarterly Return | rr_BarChartHighestQuarterlyReturn | 6.52% | ||||||||||||||||||
| Lowest Quarterly Return, Label | rr_LowestQuarterlyReturnLabel | Worst Quarter | ||||||||||||||||||
| Lowest Quarterly Return, Date | rr_BarChartLowestQuarterlyReturnDate | Mar. 31, 2020 | ||||||||||||||||||
| Lowest Quarterly Return | rr_BarChartLowestQuarterlyReturn | (11.43%) | ||||||||||||||||||
| 1 year | rr_AverageAnnualReturnYear01 | 6.22% | ||||||||||||||||||
| 5 years | rr_AverageAnnualReturnYear05 | 1.46% | ||||||||||||||||||
| 10 years | rr_AverageAnnualReturnYear10 | 2.28% | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Return after taxes on distributions | Class IS | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| 1 year | rr_AverageAnnualReturnYear01 | 1.33% | ||||||||||||||||||
| 5 years | rr_AverageAnnualReturnYear05 | (0.87%) | ||||||||||||||||||
| 10 years | rr_AverageAnnualReturnYear10 | 0.45% | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Return after taxes on distributions and sale of fund shares | Class IS | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| 1 year | rr_AverageAnnualReturnYear01 | 3.65% | ||||||||||||||||||
| 5 years | rr_AverageAnnualReturnYear05 | 0.14% | ||||||||||||||||||
| 10 years | rr_AverageAnnualReturnYear10 | 0.95% | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | Bloomberg U.S. Aggregate Index (reflects no deduction for fees, expenses or taxes) | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| 1 year | rr_AverageAnnualReturnYear01 | 1.25% | ||||||||||||||||||
| 5 years | rr_AverageAnnualReturnYear05 | (0.33%) | ||||||||||||||||||
| 10 years | rr_AverageAnnualReturnYear10 | 1.35% | ||||||||||||||||||
| BrandywineGLOBAL - Alternative Credit Fund | FTSE 3-Month U.S. Treasury Bill Index (reflects no deduction for fees, expenses or taxes) | ||||||||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||||||||||||||
| 1 year | rr_AverageAnnualReturnYear01 | 5.45% | ||||||||||||||||||
| 5 years | rr_AverageAnnualReturnYear05 | 2.54% | ||||||||||||||||||
| 10 years | rr_AverageAnnualReturnYear10 | 1.79% | ||||||||||||||||||
| ||||||||||||||||||||