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FRANKLIN MUTUAL BEACON FUND  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Franklin Mutual Beacon Fund
Objective [Heading] rr_ObjectiveHeading Investment Goal
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

Capital appreciation, which may occasionally be short term. The secondary goal is income.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

These tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees (including on Class R6 and Class Z shares), 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 in Class A if you and your family invest, or agree to invest in the future, at least $25,000 in Franklin Templeton funds and certain other funds distributed through Franklin Distributors, LLC, the Fund’s distributor. More information about these and other discounts is available from your financial professional and under “Your Account” on page 114 in the Fund’s Prospectus and under “Buying and Selling Shares” on page 80 of the Fund’s Statement of Additional Information. In addition, more information about sales charge discounts and waivers for purchases of shares through specific financial intermediaries is set forth in Appendix A – “Intermediary Sales Charge Discounts and Waivers” to the Fund’s prospectus.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees
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)
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 Fund 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 15.03% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 15.03%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A if you and your family invest, or agree to invest in the future, at least $25,000 in Franklin Templeton funds and certain other funds distributed through Franklin Distributors, LLC, the Fund’s distributor.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 25,000
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 that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of the period. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption If you do not sell your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal market conditions, the Fund invests primarily to predominantly in equity securities (including securities convertible into, or that the investment manager expects to be exchanged for, common or preferred stock) of U.S. and foreign companies that the investment manager believes are available at market prices less than their value based on certain recognized or objective criteria (fundamental value). Following this value-oriented strategy, the Fund invests primarily in undervalued securities (securities trading at a discount to fundamental value). The equity securities in which the Fund invests are primarily common stock. To a lesser extent, the Fund may also invest in merger arbitrage securities and the debt and equity of distressed companies.

The Fund is not limited to pre-set maximums or minimums governing the size of the companies in which it may invest. However, the Fund currently invests the equity portion of its portfolio primarily to predominantly in large- and mid-cap companies,

with the remaining portion of its equity portfolio in smaller companies. While the Fund does not concentrate in any one industry, from time to time, based on economic conditions, it may make significant investments in certain sectors.

The Fund may, from time to time, attempt to hedge (protect) against currency risks, largely using currency forward contracts and currency futures contracts (including currency index futures contracts) when, in the investment manager’s opinion, it would be advantageous to the Fund to do so. The Fund may also, from time to time, attempt to hedge against market risk using a variety of derivatives.

The Fund may invest substantially and potentially up to 100% of its assets in foreign securities and participations in foreign government debt. The Fund presently does not intend to invest more than a portion (no more than 25%) of its assets in securities of issuers located in emerging market countries. Although the investment manager will search for investments across a large number of countries and regions, from time to time, based on economic conditions, the Fund may have significant positions in particular countries or regions.

Portfolio Selection

The investment manager employs a research driven, fundamental value strategy for the Fund. Investments are generally selected based on the investment manager's own analysis of the security's fundamental value, including for equity securities, an analysis of cash flow potential, long-term earnings, multiples of earnings, book value, and fundamental analysis, including environmental, social and governance (ESG) considerations. The investment manager examines each investment separately and there are no set criteria as to specific value parameters, asset size, earnings or industry type. The investment manager does not assess every investment for ESG factors and, when it does, not every ESG factor may be identified or evaluated. For example, the investment manager’s assessment of investments in special situations investments, notably merger arbitrage and distressed debt, generally does not include analysis of ESG factors.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal market conditions, the Fund invests primarily to predominantly in equity securities (including securities convertible into, or that the investment manager expects to be exchanged for, common or preferred stock) of U.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The following 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 A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance and an additional index with characteristics relevant to the Fund. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at www.franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.

Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone (800) DIAL BEN/342-5236
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress franklintempleton.com
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 Class A Annual Total Returns
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Sales charges are not reflected in the bar chart, and if those charges were included, returns would be less than those shown.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
   

Best Quarter:

2020, Q4

22.45%

Worst Quarter:

2020, Q1

-26.85%
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (figures reflect sales charges) For periods ended December 31, 2024
FRANKLIN MUTUAL BEACON FUND | Principal Risks  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Principal Risks

You could lose money by investing in the Fund. Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.
FRANKLIN MUTUAL BEACON FUND | Risk Lose Money [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock You could lose money by investing in the Fund.
FRANKLIN MUTUAL BEACON FUND | Risk Not Insured [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Mutual fund shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government.
FRANKLIN MUTUAL BEACON FUND | Market  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Market: The market values of securities or other investments owned by the Fund will go up or down, sometimes rapidly or unpredictably. The market value of a security or other investment may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all investments. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise. In addition, the value

FRANKLIN MUTUAL BEACON FUND | of the Fund’s investments may go up or down due to general market or other conditions that are not specifically related to a particular issuer, such as  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

of the Fund’s investments may go up or down due to general market or other conditions that are not specifically related to a particular issuer, such as: real or perceived adverse economic changes, including widespread liquidity issues and defaults in one or more industries; changes in interest or exchange rates; unexpected natural and man-made world events, such as diseases or disasters; financial, political or social disruptions, including terrorism and war; and U.S. trade disputes or other disputes with specific countries that could result in tariffs, trade barriers and investment restrictions in certain securities in those countries. Any of these conditions can adversely affect the economies of many companies, sectors, nations, regions and the market in general, in ways that cannot necessarily be foreseen.

Stock prices tend to go up and down more dramatically than those of debt securities. A slower-growth or recessionary economic environment could have an adverse effect on the prices of the various stocks held by the Fund.
FRANKLIN MUTUAL BEACON FUND | Value Style Investing  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Value Style Investing: A value stock may not increase in price as anticipated by the investment manager if other investors fail to recognize the company's value and bid up the price, the markets favor faster-growing companies, or the factors that the investment manager believes will increase the price of the security do not occur or do not have the anticipated effect.
FRANKLIN MUTUAL BEACON FUND | Foreign Securities (non-U.S.)  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Foreign Securities (non-U.S.): Investing in foreign securities typically involves more risks than investing in U.S. securities, including risks related to currency exchange rates and policies, country or government specific issues, less favorable trading practices or regulation and greater price volatility. Certain of these risks also may apply to securities of U.S. companies with significant foreign operations. The risks of investing in foreign securities are typically greater in less developed or emerging market countries.
FRANKLIN MUTUAL BEACON FUND | Focus  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Focus: To the extent that the Fund focuses on particular countries, regions, industries, sectors or types of investments from time to time, the Fund may be subject to greater risks of adverse developments in such areas of focus than a fund that invests in a wider variety of countries, regions, industries, sectors or investments.
FRANKLIN MUTUAL BEACON FUND | Regional  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Regional: To the extent that the Fund invests a significant portion of its assets in a specific geographic region or a particular country, including Europe, the Fund will generally have more exposure to the specific regional or country risks. In the event of economic or political turmoil or a deterioration of diplomatic relations in a region or country where a substantial portion of the Fund’s assets are invested, the Fund may experience substantial illiquidity or reduction in the value of the Fund’s investments. Adverse conditions in a certain region or country can adversely affect securities of issuers in other countries whose economies appear to be unrelated.

Current uncertainty concerning the economic consequences of Russia’s military invasion of Ukraine in February 2022 has increased market volatility.
FRANKLIN MUTUAL BEACON FUND | Small and Mid Capitalization Companies  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Small and Mid Capitalization Companies: Securities issued by small and mid capitalization companies may be more volatile in price than those of larger companies and may involve substantial risks. Such risks may include greater sensitivity to economic conditions, less certain growth prospects, lack of depth of management and funds for growth and development, and limited or less developed product lines and markets. In addition, small and mid capitalization companies may be particularly affected by interest rate increases, as they may find it more difficult to borrow money to continue or expand operations, or may have difficulty in repaying any loans. The markets for securities issued by small and mid capitalization companies also tend to be less liquid than the markets for securities issued by larger companies.

FRANKLIN MUTUAL BEACON FUND | Derivative Instruments  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Derivative Instruments: The performance of derivative instruments depends largely on the performance of an underlying instrument, such as a currency, security, interest rate or index, and such derivatives often have risks similar to the underlying instrument, in addition to other risks. Derivatives involve costs and can create economic leverage in the Fund’s portfolio which may result in significant volatility and cause the Fund to participate in losses (as well as gains) in an amount that significantly exceeds the Fund’s initial investment. Certain derivatives have the potential for unlimited loss, regardless of the size of the initial investment. Other risks include illiquidity, mispricing or improper valuation of the derivative, and imperfect correlation between the value of the derivative and the underlying instrument so that the Fund may not realize the intended benefits. Their successful use will usually depend on the investment manager’s ability to accurately forecast movements in the market relating to the underlying instrument. Should a market or markets, or prices of particular classes of investments move in an unexpected manner, especially in unusual or extreme market conditions, the Fund may not achieve the anticipated benefits of the transaction, and it may realize losses, which could be significant. If the investment manager is not successful in using such derivative instruments, the Fund’s performance may be worse than if the investment manager did not use such derivatives at all. When a derivative is used for hedging, the change in value of the derivative may also not correlate specifically with the currency, security, interest rate, index or other risk being hedged. Derivatives also may present the risk that the other party to the transaction will fail to perform. There is also the risk, especially under extreme market conditions, that a derivative, which usually would operate as a hedge, provides no hedging benefits at all.
FRANKLIN MUTUAL BEACON FUND | Merger Arbitrage Securities and Distressed Companies  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Merger Arbitrage Securities and Distressed Companies: A merger or other restructuring, or a tender or exchange offer, proposed or pending at the time the Fund invests in merger arbitrage securities may not be completed on the terms or

within the time frame contemplated, which may result in losses to the Fund. Debt obligations of distressed companies typically are unrated, lower-rated, in default or close to default and are generally more likely to become worthless than the securities of more financially stable companies.
FRANKLIN MUTUAL BEACON FUND | Liquidity  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Liquidity: The trading market for a particular security or type of security or other investments in which the Fund invests may become less liquid or even illiquid. Reduced liquidity will have an adverse impact on the Fund’s ability to sell such securities or other investments when necessary to meet the Fund’s liquidity needs, which may arise or increase in response to a specific economic event or because the investment manager wishes to purchase particular investments or believes that a higher level of liquidity would be advantageous. Reduced liquidity will also generally lower the value of such securities or other investments. Market prices for such securities or other investments may be relatively volatile.
FRANKLIN MUTUAL BEACON FUND | Management  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Management: The Fund is subject to management risk because it is an actively managed investment portfolio. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.
FRANKLIN MUTUAL BEACON FUND | ESG Considerations  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

ESG Considerations: ESG considerations are one of a number of factors that the investment manager examines when considering investments for the Fund’s portfolio. In light of this, the issuers in which the Fund invests may not be considered ESG-focused companies. In addition, ESG considerations assessed as part of the Fund’s investment process may vary across types of eligible investments and issuers. The investment manager does not assess every investment for ESG factors and, when it does, not every ESG factor may be identified or evaluated. The investment manager’s assessment of an issuer may differ from that of investors, third-party service providers, such as ratings providers, and other funds. As a result, securities selected by the investment manager may not reflect the beliefs and values of any particular investor. The investment manager also may be dependent on the availability of timely, complete and accurate ESG data being reported by issuers and/or third-party research providers to evaluate ESG factors. ESG factors are often not uniformly measured or defined, which could impact the investment manager’s ability to assess an issuer. While the investment manager views ESG considerations as having the potential to contribute to the Fund’s long-term performance, there is no guarantee that such results will be achieved.
FRANKLIN MUTUAL BEACON FUND | Cybersecurity  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Cybersecurity: Cybersecurity incidents, both intentional and unintentional, 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 investment manager, 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 or receiving distributions. The investment manager has 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 or the investment manager. Cybersecurity incidents may result in financial losses to the Fund and its shareholders, and substantial costs may be incurred in an effort to prevent or mitigate 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.

Because technology is frequently changing, new ways to carry out cyber attacks are always developing. Therefore, 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. Like other funds and business enterprises, the Fund, the investment manager, and their service providers are subject to the risk of cyber incidents occurring from time to time.
FRANKLIN MUTUAL BEACON FUND | MSCI All Country World Index-NR  
Risk/Return: rr_RiskReturnAbstract  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (index reflects no deduction for fees, expenses or taxes but are net of dividend tax withholding)
Label rr_AverageAnnualReturnLabel MSCI All Country World Index-NR
1 Year rr_AverageAnnualReturnYear01 17.49%
5 Years rr_AverageAnnualReturnYear05 10.06%
10 Years rr_AverageAnnualReturnYear10 9.23%
FRANKLIN MUTUAL BEACON FUND | MSCI World Value Index-NR  
Risk/Return: rr_RiskReturnAbstract  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (index reflects no deduction for fees, expenses or taxes but are net of dividend tax withholding)
Label rr_AverageAnnualReturnLabel MSCI World Value Index-NR
1 Year rr_AverageAnnualReturnYear01 11.47%
5 Years rr_AverageAnnualReturnYear05 6.97%
10 Years rr_AverageAnnualReturnYear10 6.65%
FRANKLIN MUTUAL BEACON FUND | CLASS A  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none [1]
Management fees rr_ManagementFeesOverAssets 0.68%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other expenses rr_OtherExpensesOverAssets 0.09%
Total annual Fund operating expenses rr_ExpensesOverAssets 1.02%
1 Year rr_ExpenseExampleYear01 $ 648
3 Years rr_ExpenseExampleYear03 856
5 Years rr_ExpenseExampleYear05 1,082
10 Years rr_ExpenseExampleYear10 $ 1,728
Annual Return 2015 rr_AnnualReturn2015 (4.33%)
Annual Return 2016 rr_AnnualReturn2016 15.80%
Annual Return 2017 rr_AnnualReturn2017 14.09%
Annual Return 2018 rr_AnnualReturn2018 (8.49%)
Annual Return 2019 rr_AnnualReturn2019 24.69%
Annual Return 2020 rr_AnnualReturn2020 3.75%
Annual Return 2021 rr_AnnualReturn2021 16.46%
Annual Return 2022 rr_AnnualReturn2022 (11.91%)
Annual Return 2023 rr_AnnualReturn2023 15.19%
Annual Return 2024 rr_AnnualReturn2024 7.52%
Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 22.45%
Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (26.85%)
Label rr_AverageAnnualReturnLabel Return before taxes
1 Year rr_AverageAnnualReturnYear01 1.58%
5 Years rr_AverageAnnualReturnYear05 4.48%
10 Years rr_AverageAnnualReturnYear10 6.03%
FRANKLIN MUTUAL BEACON FUND | CLASS A | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return after taxes on distributions
1 Year rr_AverageAnnualReturnYear01 0.17%
5 Years rr_AverageAnnualReturnYear05 2.96%
10 Years rr_AverageAnnualReturnYear10 4.30%
FRANKLIN MUTUAL BEACON FUND | CLASS A | After Taxes on Distributions and Sales  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return after taxes on distributions and sale of Fund shares
1 Year rr_AverageAnnualReturnYear01 1.87%
5 Years rr_AverageAnnualReturnYear05 3.33%
10 Years rr_AverageAnnualReturnYear10 4.43%
FRANKLIN MUTUAL BEACON FUND | CLASS C  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management fees rr_ManagementFeesOverAssets 0.68%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other expenses rr_OtherExpensesOverAssets 0.09%
Total annual Fund operating expenses rr_ExpensesOverAssets 1.77%
1 Year rr_ExpenseExampleYear01 $ 280
3 Years rr_ExpenseExampleYear03 558
5 Years rr_ExpenseExampleYear05 960
10 Years rr_ExpenseExampleYear10 1,887
1 Year rr_ExpenseExampleNoRedemptionYear01 180
3 Years rr_ExpenseExampleNoRedemptionYear03 558
5 Years rr_ExpenseExampleNoRedemptionYear05 960
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,887
1 Year rr_AverageAnnualReturnYear01 5.77%
5 Years rr_AverageAnnualReturnYear05 4.89%
10 Years rr_AverageAnnualReturnYear10 5.83%
FRANKLIN MUTUAL BEACON FUND | CLASS R  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.68%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.09%
Total annual Fund operating expenses rr_ExpensesOverAssets 1.27%
1 Year rr_ExpenseExampleYear01 $ 129
3 Years rr_ExpenseExampleYear03 402
5 Years rr_ExpenseExampleYear05 696
10 Years rr_ExpenseExampleYear10 $ 1,532
1 Year rr_AverageAnnualReturnYear01 7.24%
5 Years rr_AverageAnnualReturnYear05 5.41%
10 Years rr_AverageAnnualReturnYear10 6.37%
FRANKLIN MUTUAL BEACON FUND | Class R6  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.68%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.04%
Total annual Fund operating expenses rr_ExpensesOverAssets 0.72%
1 Year rr_ExpenseExampleYear01 $ 74
3 Years rr_ExpenseExampleYear03 231
5 Years rr_ExpenseExampleYear05 401
10 Years rr_ExpenseExampleYear10 $ 896
1 Year rr_AverageAnnualReturnYear01 7.88%
5 Years rr_AverageAnnualReturnYear05 6.01%
10 Years rr_AverageAnnualReturnYear10 6.98%
FRANKLIN MUTUAL BEACON FUND | CLASS Z  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management fees rr_ManagementFeesOverAssets 0.68%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets 0.09%
Total annual Fund operating expenses rr_ExpensesOverAssets 0.77%
1 Year rr_ExpenseExampleYear01 $ 79
3 Years rr_ExpenseExampleYear03 246
5 Years rr_ExpenseExampleYear05 428
10 Years rr_ExpenseExampleYear10 $ 955
1 Year rr_AverageAnnualReturnYear01 7.83%
5 Years rr_AverageAnnualReturnYear05 5.96%
10 Years rr_AverageAnnualReturnYear10 6.91%
[1]

There is a 1% contingent deferred sales charge that applies to investments of $1 Million or more (see "Investments of $1 Million or More" under "Choosing a Share Class") and purchases by certain retirement plans without an initial sales charge on shares sold within 18 months of purchase.