2.2.0.25truefalse0100000 - Document - Risk/Return Summary {Unlabeled}falsefalsetrue1falsefalseUSDtruefalse{dei_DocumentInformationDocumentAxis} : Longleaf Partners Fund
5/2/2010 - 5/1/2011
USD ($)
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5/2/2010 - 5/1/2011
USD ($)
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 2
falsefalse4false0rr_ObjectiveHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Investment Objective and PolicyfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 2
-Subsection a
falsefalse5false0rr_ObjectivePrimaryTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Longleaf Partners Fund seeks long-term capital growth. The Fund seeks to achieve this objective by investing primarily in a limited number of mid- and large-cap U.S. companies we believe to be significantly undervalued. Current income is not an objective.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 2
-Subsection a
falsefalse6false0rr_ExpenseHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Fees and ExpensesfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Summary Fee Table Includes the following information, in plain English under rule 421(d) under the Securities Act, after Item 2 Fees and expenses of the Fund This table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Shareholder Fees (fees paid directly from your investment) Example 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 you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be You would pay the following expenses if you did not redeem your shares The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher. Portfolio Turnover The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs. 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 __% of the average value of its whole portfolio. Instructions. A.3.instructions.6 New Funds. For purposes of this Item, a "New Fund" is a Fund that does not include in Form N-1A financial statements reporting operating results or that includes financial statements for the Fund's initial fiscal year reporting operating results for a period of 6 months or less. The following Instructions apply to New Funds.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph d
-Subsection instructions
falsefalse7false0rr_ExpenseNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00The following table shows the fees and expenses you may pay to buy and hold shares of the Partners Fund.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThis table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Include the narrative explanations in the order indicated. A Fund may modify the narrative explanations if the explanation contains comparable information to that shown.The narrative explanation regarding sales charge discounts is only required by a Fund that offers such discounts and should specify the minimum level of investment required to qualify for a discount. Modify the narrative explanation to state that Fund shares are sold on a national securities exchange at the end of the time periods indicated, and that brokerage commissions for buying and selling Fund shares through a broker are not reflected.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph b
-Subsection instructions
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-Publisher SEC
-Name Form
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-Subparagraph 7
-Subsection table
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph a
-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 9
-Subsection table
falsefalse0rr_DistributionAndService12b1FeesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalse3falseRowprimaryElement*6false0rr_OtherExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruetrue0.00150.0015falsefalsefalsetruefalseOtherrr:NonNegativePure4Typepure"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph c
-Clause i
-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph d
-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 4
-Subsection instructions
falsefalse12false0rr_ExpenseExampleNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00This example helps compare the cost of investing in the Partners Fund with other mutual funds. The table shows what you would pay in expenses over time, whether or not you sold your shares at the end of each period. The example assumes a $10,000 investment, a 5% total return each year, and no changes in expenses. Your actual costs may be higher or lower than those shown.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThe Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 1
-Subsection example
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 4
-Subsection instructions
falsefalse0rr_ExpenseExampleYear01truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue9393falsefalsefalsetruefalseOthernanafalsefalse2falseRowprimaryElement*5false0rr_ExpenseExampleYear03rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsetrue290290falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example
falsefalse0rr_ExpenseExampleYear03truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue290290falsefalsefalsetruefalseOthernanafalsefalse3falseRowprimaryElement*6false0rr_ExpenseExampleYear05rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsetrue504504falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example
falsefalse0rr_ExpenseExampleYear05truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue504504falsefalsefalsetruefalseOthernanafalsefalse4falseRowprimaryElement*7false0rr_ExpenseExampleYear10rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsetrue11201120falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example
falsefalse0rr_ExpenseExampleYear10truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue11201120falsefalsefalsetruefalseOthernanafalsefalse14Expense Example
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 5
-Subsection instructions
falsefalse15false0rr_PortfolioTurnoverTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00The 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 36.72% of the average value of its portfolio.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDisclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subsection example
falsefalse16false0rr_StrategyHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Principal Investment StrategyfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Subsection a
falsefalse17false0rr_StrategyNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>The Fund seeks superior long-term performance by acquiring equity securities that we believe meet our qualitative and quantitative criteria: </p>
<p>• Good businesses that are understandable, financially sound, competitively entrenched, and will generate growing free cash flow;</p>
<p>• Good management partners who are capable operators, responsible capital allocators, trustworthy, and shareholder-oriented; and </p>
<p>• Good price that is 60% or less of our conservative appraisal determined through fundamental financial analysis using disciplines we’ve applied over 34 years. We believe purchasing equities at prices substantially less than their intrinsic worth will protect capital from significant permanent loss and provide the opportunity for substantial appreciation if the market recognizes the company’s value. </p>
<p>We sell securities when they approach our appraisals, when we perceive a change in company fundamentals, a decline in attractiveness relative to other issues, or if the original reasons for purchase materially change. </p>
<p>The Fund primarily owns common stock but may purchase other types of securities. The Fund may invest up to 30% of assets in non-U.S. securities, which could include emerging market issuers, and may achieve its exposure to non-U.S. securities through investing in American depositary receipts (ADRs). The Fund may purchase and sell (write) put and call options, futures contracts and options on futures contracts, swaps and other similar instruments and may engage in short sales. Although the Fund reserves the right to invest in derivatives of any kind when Southeastern believes it would benefit the Fund, during the last fiscal year it employed forward currency agreements for the purpose of managing its exposure to currency risk, and wrote “covered” calls to seek enhanced returns. </p>
<p>The Fund is “non-diversified,” which means that it may invest a significant portion of its assets in a relatively small number of issuers, and generally invests in 15 to 25 companies. </p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Subsection a
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 1
-Subsection b
falsefalse19false0rr_RiskNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>The following are summaries of the principal risks of investing in the Fund. For additional risk information that you should consider, see Risks of Investing in the Fund’s statutory prospectus. </p>
<p><i><b>Stock Market Risk.</b></i> Equity prices fluctuate in response to actual or perceived developments at individual companies, within particular industries or sectors, or general economic conditions. If the Fund’s price declines and you redeem your shares, you could lose money. </p>
<p><i><b>Investment Selection Risk.</b></i> Investments might not reach what we believe are their true values either because the market fails to recognize the value or because we misjudged it. </p>
<p><i><b>Corporate Ownership Risks.</b></i> As partial owners of companies, we face a number of risks inherent in owning a business, such as operational, financial and regulatory risk. If businesses we own in the Funds do not successfully address these risks, their business values and stock prices may decline and negatively impact your Fund shares.</p>
<p><i><b>Non-Diversification Risk.</b></i> Because the Fund is non-diversified under federal securities laws and generally invests in 15 to 25 companies, each holding will have a greater impact on the Fund’s total return, and share value could fluctuate more than if a greater number of securities were held. </p>
<p><i><b>Non-U.S. Investment Risks.</b></i> Non-U.S. investment risks can include political and economic changes, non-U.S. withholding taxes, exchange controls, confiscation, non-U.S. governmental restrictions, differences in accounting and auditing standards, more limited availability of public information and market illiquidity. </p>
<p>In addition, non-U.S. securities are generally denominated and traded in non-U.S. currencies, and the Fund may invest in derivative instruments that provide exposure to non-U.S. currencies. The exchange rates between currencies can fluctuate daily. As a result, the values of a Fund's non-U.S. securities may be affected by changes in exchange rates between non-U.S. currencies and the U.S. dollar, as well as between currencies of countries other than the U.S. In some cases, the Fund may try to hedge to reduce the impact of currency exchange fluctuation, but does not intend to do so routinely. As a result, the Fund’s price will be more susceptible to currency fluctuations. </p>
<p>Non-U.S. investment risks may be more pronounced in emerging markets. </p>
<p><i><b>Derivatives Risks.</b></i> The Fund’s use of derivative instruments involves risks different from, and possibly greater than, the risks associated with investing directly in securities, currencies and other traditional investments. To the extent it invests in derivative instruments, the Fund could lose more than the principal amount invested, and the use of certain derivatives may subject the Fund to the potential for unlimited loss. A derivative investment may not perform as we expect, may become illiquid and may result in loss if the Fund’s counterparty is unable or unwilling to meet its obligations. Derivatives also involve the risk of mispricing or improper valuation, the risk of ambiguous documentation, and the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. In addition, the use of derivatives may increase or accelerate the amount of taxes payable by shareholders. </p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringNarrative Risk Disclosure. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.Reference 1: 1
-Publisher SEC
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-Number N-1A
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-Publisher SEC
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-Publisher SEC
-Name Form
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-Subsection b
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5/2/2010 - 5/1/2011
USD ($)
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-Publisher SEC
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-Subsection a
falsefalse31false0rr_ObjectivePrimaryTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Longleaf Partners Small-Cap Fund seeks long-term capital growth. The Fund seeks to achieve this objective by investing primarily in a limited number of small-cap U.S. companies we believe to be significantly undervalued. Current income is not an objective.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 2
-Subsection a
falsefalse32false0rr_ExpenseHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Fees and ExpensesfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Summary Fee Table Includes the following information, in plain English under rule 421(d) under the Securities Act, after Item 2 Fees and expenses of the Fund This table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Shareholder Fees (fees paid directly from your investment) Example 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 you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be You would pay the following expenses if you did not redeem your shares The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher. Portfolio Turnover The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs. 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 __% of the average value of its whole portfolio. Instructions. A.3.instructions.6 New Funds. For purposes of this Item, a "New Fund" is a Fund that does not include in Form N-1A financial statements reporting operating results or that includes financial statements for the Fund's initial fiscal year reporting operating results for a period of 6 months or less. The following Instructions apply to New Funds.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph d
-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
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-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph a
-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 9
-Subsection table
falsefalse0rr_DistributionAndService12b1FeesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalse3falseRowprimaryElement*6false0rr_OtherExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruetrue0.00140.0014falsefalsefalsetruefalseOtherrr:NonNegativePure4Typepure"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph c
-Clause i
-Subsection instructions
falsefalse0rr_OtherExpensesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00140.0014falsefalsefalsetruefalseOthernanafalsefalse4falseRowprimaryElement*7false0rr_ExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruetrue0.00930.0093falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses. If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds. If the prospectus offers more than one Class of a Multiple Class Fund or more than one Feeder Fund that invests in the same Master Fund, provide a separate response for each Class or Feeder Fund. Base the percentages of "Annual Fund Operating Expenses" on amounts incurred during the Fund's most recent fiscal year, but include in expenses amounts that would have been incurred absent expense reimbursement or fee waiver arrangements. If the Fund has changed its fiscal year and, as a result, the most recent fiscal year is less than three months, use the fiscal year prior to the most recent fiscal year as the basis for determining "Annual Fund Operating Expenses."Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph d
-Subsection instructions
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-Section 3
-Paragraph 4
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-Publisher SEC
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-Section 3
-Paragraph 1
-Subparagraph 1
-Subsection example
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 4
-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example
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-Publisher SEC
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-Chapter A
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
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-Subsection example
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-Publisher SEC
-Name Form
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-Section 4
-Subsection a
falsefalse43false0rr_StrategyNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>The Fund seeks superior long-term performance by acquiring equity securities that we believe meet our qualitative and quantitative criteria: </p>
<p>• Good businesses that are understandable, financially sound, competitively entrenched, and will generate growing free cash flow; </p>
<p>• Good management partners who are capable operators, responsible capital allocators, trustworthy, and shareholder-oriented; and </p>
<p>• Good price that is 60% or less of our conservative appraisal determined through fundamental financial analysis using disciplines we’ve applied over 34 years. We believe purchasing equities at prices substantially less than their intrinsic worth will protect capital from significant permanent loss and provide the opportunity for substantial appreciation if the market recognizes the company’s value. </p>
<p>We sell securities when they approach our appraisals, when we perceive a change in company fundamentals, a decline in attractiveness relative to other issues, or if the original reasons for purchase materially change. </p>
<p>The Small-Cap Fund normally invests at least 80% of net assets plus any borrowings for investment purposes in the equity securities, including convertible securities, of a limited number of companies whose market capitalizations at the time of purchase are considered small cap. The Fund primarily owns common stock but may purchase other types of securities. The Fund may invest up to 30% of assets in non-U.S. securities, which could include emerging market issuers, and may achieve its exposure to non-U.S. securities through investing in American depositary receipts (ADRs). The Fund may purchase and sell (write) put and call options, futures contracts and options on futures contracts, swaps and other similar instruments and may engage in short sales. Although the Fund did not invest significantly in derivative instruments over its last fiscal year, it reserves the right to do so at any time when Southeastern believes it would benefit the Fund. </p>
<p>The Fund is “non-diversified,” which means that it may invest a significant portion of its assets in a relatively small number of issuers, and generally invests in 15 to 25 companies. </p>
<p>Definition of Small-Cap. Currently, a company will be considered small cap if its market capitalization at the time of purchase is within the range of companies in the Russell 2000 Index, the S&P Small-Cap 600 Index, or the Wilshire US Small-Cap Index during the most recent 12-month period (based on month-end data). This capitalization range will change over time. At March 31, 2011, the top of this range was $6.728 billion. </p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: 1
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falsefalse45false0rr_RiskNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>The following are summaries of the principal risks of investing in the Fund. For additional risk information that you should consider, see Risks of Investing in the Fund's statutory prospectus. </p>
<p><i><b>Stock Market Risk.</b></i> Equity prices fluctuate in response to actual or perceived developments at individual companies, within particular industries or sectors, or general economic conditions. If the Fund’s price declines and you redeem your shares, you could lose money. </p>
<p><i><b>Investment Selection Risk.</b></i> Investments might not reach what we believe are their true values either because the market fails to recognize the value or because we misjudged it. </p>
<p><i><b>Corporate Ownership Risks.</b></i> As partial owners of companies, we face a number of risks inherent in owning a business, such as operational, financial and regulatory risk. If businesses we own in the Funds do not successfully address these risks, their business values and stock prices may decline and negatively impact your Fund shares. </p>
<p><i><b>Non-Diversification Risk.</b></i> Because the Fund is non-diversified under federal securities laws and generally invests in 15 to 25 companies, each holding will have a greater impact on the Fund’s total return, and share value could fluctuate more than if a greater number of securities were held. </p>
<p><i><b>Non-U.S. Investment Risks.</b></i> Non-U.S. investment risks can include political and economic changes, non-U.S. withholding taxes, exchange controls, confiscation, non-U.S. governmental restrictions, differences in accounting and auditing standards, more limited availability of public information and market illiquidity. </p>
<p>In addition, non-U.S. securities are generally denominated and traded in non-U.S. currencies, and the Fund may invest in derivative instruments that provide exposure to non-U.S. currencies. The exchange rates between currencies can fluctuate daily. As a result, the values of a Fund’s non-U.S. securities may be affected by changes in exchange rates between non-U.S. currencies and the U.S. dollar, as well as between currencies of countries other than the U.S. In some cases, the Fund may try to hedge to reduce the impact of currency exchange fluctuation, but does not intend to do so routinely. As a result, the Fund’s price will be more susceptible to currency fluctuations. </p>
<p>Non-U.S. investment risks may be more pronounced in emerging markets. </p>
<p><i><b>Small-Cap Risks.</b></i> Smaller companies may have more limited product lines, markets, and financial resources than larger companies, and to the extent recently established, may have limited or no operating history to evaluate. In addition, their securities may trade less frequently and in more limited volume than those of larger companies. Small-cap stocks may be more volatile than those of larger companies and, where trading volume is thin, our ability to dispose of such securities may be more limited. </p>
<p><i><b>Derivatives Risks.</b></i> The Fund’s use of derivative instruments involves risks different from, and possibly greater than, the risks associated with investing directly in securities, currencies and other traditional investments. To the extent it invests in derivative instruments, the Fund could lose more than the principal amount invested, and the use of certain derivatives may subject the Fund to the potential for unlimited loss. A derivative investment may not perform as we expect, may become illiquid and may result in loss if the Fund’s counterparty is unable or unwilling to meet its obligations. Derivatives also involve the risk of mispricing or improper valuation, the risk of ambiguous documentation, and the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. In addition, the use of derivatives may increase or accelerate the amount of taxes payable by shareholders.</p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringNarrative Risk Disclosure. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.Reference 1: 1
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falsefalsefalseUSDfalsefalse$5falseColumnprimaryElement*8false0rr_AverageAnnualReturnYear10rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruetrue0.09110.0911falsefalsefalsetruefalse2truetruetrue0.07760.0776[1]falsefalsefalsetruefalse3truetruetrue0.07620.0762[1]falsefalsefalsetruefalse4truetruetrue0.06330.0633falsefalsefalsetruefalseOtherxbrli:pureItemTypepureReturn Before Taxes.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
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-Subsection b
falsefalsefalseUSDfalsefalse$1falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-05-02T00:00:002011-05-01T00:00:00falsefalseLongleaf Partners Small-Cap Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_S000009312Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseReturn Before Taxesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_ReturnBeforeTaxesMemberrr_PerformanceMeasureAxisexplicitMemberLongleaf Partners Small-Cap FundReturn Before TaxesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00Longleaf Partners Small-Cap Fund (net of fees and expenses)Longleaf Partners Small-Cap Fund (net of fees and expenses)falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsefalsefalse3truetruetrue0.22320.2232falsefalsefalsetruefalse4truetruetrue0.05200.0520falsefalsefalsetruefalse5truetruetrue0.09110.0911falsefalsefalsetruefalseOthernanafalsefalse2falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-05-02T00:00:002011-05-01T00:00:00falsefalseLongleaf Partners Small-Cap Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_S000009312Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseReturn After Taxes on Distributionsrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsMemberrr_PerformanceMeasureAxisexplicitMemberLongleaf Partners Small-Cap FundReturn After Taxes on DistributionsStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00Longleaf Partners Small-Cap Fund (net of fees and expenses)Longleaf Partners Small-Cap Fund (net of fees and expenses)falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsefalsefalse3truetruetrue0.22150.2215[1]falsefalsefalsetruefalse4truetruetrue0.0430.043[1]falsefalsefalsetruefalse5truetruetrue0.07760.0776[1]falsefalsefalsetruefalseOthernanafalsefalse3falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-05-02T00:00:002011-05-01T00:00:00falsefalseLongleaf Partners Small-Cap Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_S000009312Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseReturn After Taxes on Distributions and Sale of Fund Sharesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsAndSalesMemberrr_PerformanceMeasureAxisexplicitMemberLongleaf Partners Small-Cap FundReturn After Taxes on Distributions and Sale of Fund SharesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00Longleaf Partners Small-Cap Fund (net of fees and expenses)Longleaf Partners Small-Cap Fund (net of fees and expenses)falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsefalsefalse3truetruetrue0.14510.1451[1]falsefalsefalsetruefalse4truetruetrue0.04350.0435[1]falsefalsefalsetruefalse5truetruetrue0.07620.0762[1]falsefalsefalsetruefalseOthernanafalsefalse4falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-05-02T00:00:002011-05-01T00:00:00falsefalseLongleaf Partners Small-Cap Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_S000009312Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseRussell 2000 Indexrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_RussellTwoThousandIndexMemberrr_PerformanceMeasureAxisexplicitMemberLongleaf Partners Small-Cap FundRussell 2000 IndexStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00Comparative IndexComparative Indexfalsefalsefalsetruefalse2falsefalsefalse00(reflects no deductions for fees, expenses, or taxes)(reflects no deductions for fees, expenses, or taxes)falsefalsefalsetruefalse3truetruetrue0.26850.2685falsefalsefalsetruefalse4truetruetrue0.04470.0447falsefalsefalsetruefalse5truetruetrue0.06330.0633falsefalsefalsetruefalseOthernanafalsefalse1After-tax returns 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 the investor's tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.54Average Annual Total Returns
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5/2/2010 - 5/1/2011
USD ($)
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-Publisher SEC
-Name Form
-Number N-1A
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falsefalse56false0rr_ObjectiveHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Investment Objective and PolicyfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 2
-Subsection a
falsefalse57false0rr_ObjectivePrimaryTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Longleaf Partners International Fund seeks long-term capital growth. The Fund seeks to achieve this objective by investing primarily in a limited number of international or non-U.S. companies we believe to be significantly undervalued. Current income is not an objective.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 2
-Subsection a
falsefalse58false0rr_ExpenseHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Fees and ExpensesfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Summary Fee Table Includes the following information, in plain English under rule 421(d) under the Securities Act, after Item 2 Fees and expenses of the Fund This table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Shareholder Fees (fees paid directly from your investment) Example 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 you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be You would pay the following expenses if you did not redeem your shares The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher. Portfolio Turnover The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs. 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 __% of the average value of its whole portfolio. Instructions. A.3.instructions.6 New Funds. For purposes of this Item, a "New Fund" is a Fund that does not include in Form N-1A financial statements reporting operating results or that includes financial statements for the Fund's initial fiscal year reporting operating results for a period of 6 months or less. The following Instructions apply to New Funds.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph d
-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph b
-Subsection instructions
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-Publisher SEC
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-Subsection table
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-Publisher SEC
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-Section 3
-Paragraph 1
-Subparagraph 7
-Subsection table
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph a
-Subsection instructions
falsefalse0rr_ManagementFeesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01200.0120falsefalsefalsetruefalseOthernanafalsefalse2falseRowprimaryElement*5false0rr_DistributionAndService12b1FeesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruetrue0.00000.0000falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureDistribution [and/or Service] (12b-1) Fees" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of "Other Expenses," disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 9
-Subsection table
falsefalse0rr_DistributionAndService12b1FeesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalse3falseRowprimaryElement*6false0rr_OtherExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruetrue0.00180.0018falsefalsefalsetruefalseOtherrr:NonNegativePure4Typepure"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph c
-Clause i
-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph d
-Subsection instructions
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-Section 3
-Paragraph 1
-Subparagraph 1
-Subsection example
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 4
-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
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-Subsection example
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 2
-Subsection example
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subsection example
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-Publisher SEC
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falsefalse69false0rr_StrategyNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>The Fund seeks superior long-term performance by acquiring equity securities that we believe meet our qualitative and quantitative criteria: </p>
<p>• Good businesses that are understandable, financially sound, competitively entrenched, and will generate growing free cash flow; </p>
<p>• Good management partners who are capable operators, responsible capital allocators, trustworthy, and shareholder-oriented; and </p>
<p>• Good price that is 60% or less of our conservative appraisal determined through fundamental financial analysis using disciplines we've applied over 34 years. We believe purchasing equities at prices substantially less than their intrinsic worth will protect capital from significant permanent loss and provide the opportunity for substantial appreciation if the market recognizes the company’s value. </p>
<p>We sell securities when they approach our appraisals, when we perceive a change in company fundamentals, a decline in attractiveness relative to other issues, or if the original reasons for purchase materially change. </p>
<p>The International Fund normally invests at least 65% of total assets in the equity securities of international issuers, which could include emerging market issuers, and may achieve its exposure to non-U.S. securities through investing in American depositary receipts (ADRs). The Fund primarily owns common stock but may purchase other types of securities as long as the investment meets our criteria. The Fund may purchase and sell (write) put and call options, futures contracts and options on futures contracts, swaps and other similar instruments and may engage in short sales. Although the Fund reserves the right to invest in derivatives of any kind when Southeastern believes it would benefit the Fund, during the last fiscal year it employed forward currency agreements for the purpose of managing its exposure to currency risk. </p>
<p>The Fund is “non-diversified,” which means that it may invest a significant portion of its assets in a relatively small number of issuers, and generally invests in 15 to 25 companies. </p>
<p>Definition of International. A company will generally be considered international if headquartered outside the United States or if at least 50% of its assets are outside the U.S. or 50% of its gross income is from non-U.S. sources. </p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Subsection a
falsefalse70false0rr_RiskHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Principal Investment RisksfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNarrative Risk Disclosure.Reference 1: 1
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falsefalse71false0rr_RiskNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>The following are summaries of the principal risks of investing in the Fund. For additional risk information that you should consider, see Risks of Investing in the Fund’s statutory prospectus. </p>
<p><i><b>Stock Market Risk.</b></i> Equity prices fluctuate in response to actual or perceived developments at individual companies, within particular industries or sectors, or general economic conditions. If the Fund’s price declines and you redeem your shares, you could lose money. </p>
<p><i><b>Investment Selection Risk.</b></i> Investments might not reach what we believe are their true values either because the market fails to recognize the value or because we misjudged it. </p>
<p><i><b>Corporate Ownership Risks.</b></i> As partial owners of companies, we face a number of risks inherent in owning a business, such as operational, financial and regulatory risk. If businesses we own in the Funds do not successfully address these risks, their business values and stock prices may decline and negatively impact your Fund shares. </p>
<p><i><b>Non-Diversification Risk.</b></i> Because the Fund is non-diversified under federal securities laws and generally invests in 15 to 25 companies, each holding will have a greater impact on the Fund’s total return, and share value could fluctuate more than if a greater number of securities were held. </p>
<p><i><b>Non-U.S. Investment Risks.</b></i> Non-U.S. investment risks can include political and economic changes, non-U.S. withholding taxes, exchange controls, confiscation, non-U.S. governmental restrictions, differences in accounting and auditing standards, more limited availability of public information and market illiquidity. </p>
<p>In addition, non-U.S. securities are generally denominated and traded in non-U.S. currencies, and the Fund may invest in derivative instruments that provide exposure to non-U.S. currencies. The exchange rates between currencies can fluctuate daily. As a result, the values of a Fund’s non-U.S. securities may be affected by changes in exchange rates between non-U.S. currencies and the U.S. dollar, as well as between currencies of countries other than the U.S. In some cases, the Fund may try to hedge to reduce the impact of currency exchange fluctuation, but does not intend to do so routinely. As a result, the Fund’s price will be more susceptible to currency fluctuations. </p>
<p>Non-U.S. investment risks may be more pronounced in emerging markets. </p>
<p><i><b>Focused Investment Risks.</b></i> The Fund does not limit the percentage of assets invested in any particular geographic region or country. Accordingly, there may be periods when the Fund has significant exposure to a particular region or country, so that negative events occurring in that area would have a greater adverse impact on performance than they would on more geographically diversified funds. </p>
<p><i><b>Derivatives Risks.</b></i> The Fund’s use of derivative instruments involves risks different from, and possibly greater than, the risks associated with investing directly in securities, currencies and other traditional investments. To the extent it invests in derivative instruments, the Fund could lose more than the principal amount invested, and the use of certain derivatives may subject the Fund to the potential for unlimited loss. A derivative investment may not perform as we expect, may become illiquid and may result in loss if the Fund’s counterparty is unable or unwilling to meet its obligations. Derivatives also involve the risk of mispricing or improper valuation, the risk of ambiguous documentation, and the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. In addition, the use of derivatives may increase or accelerate the amount of taxes payable by shareholders. </p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringNarrative Risk Disclosure. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
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-Section 4
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-Subsection b
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-Publisher SEC
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-Publisher SEC
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-Publisher SEC
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-Exhibit 2
-Subsection b
falsefalsefalseUSDfalsefalse$5falseColumnprimaryElement*8false0rr_AverageAnnualReturnYear10rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruetrue0.06370.0637falsefalsefalsetruefalse2truetruetrue0.05570.0557[1]falsefalsefalsetruefalse3truetruetrue0.05320.0532[1]falsefalsefalsetruefalse4truetruetrue0.03500.0350falsefalsefalsetruefalseOtherxbrli:pureItemTypepureReturn Before Taxes.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph iii
-Clause 1
-Exhibit 2
-Subsection b
falsefalsefalseUSDfalsefalse$1falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-05-02T00:00:002011-05-01T00:00:00falsefalseLongleaf Partners International Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_S000009313Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseReturn Before Taxesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_ReturnBeforeTaxesMemberrr_PerformanceMeasureAxisexplicitMemberLongleaf Partners International FundReturn Before TaxesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00Longleaf Partners International Fund (net of fees and expenses)Longleaf Partners International Fund (net of fees and expenses)falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsefalsefalse3truetruetrue0.13690.1369falsefalsefalsetruefalse4truetruetrue0.02690.0269falsefalsefalsetruefalse5truetruetrue0.06370.0637falsefalsefalsetruefalseOthernanafalsefalse2falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-05-02T00:00:002011-05-01T00:00:00falsefalseLongleaf Partners International Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_S000009313Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseReturn After Taxes on Distributionsrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsMemberrr_PerformanceMeasureAxisexplicitMemberLongleaf Partners International FundReturn After Taxes on DistributionsStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00Longleaf Partners International Fund (net of fees and expenses)Longleaf Partners International Fund (net of fees and expenses)falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsefalsefalse3truetruetrue0.13200.1320[1]falsefalsefalsetruefalse4truetruetrue0.01830.0183[1]falsefalsefalsetruefalse5truetruetrue0.05570.0557[1]falsefalsefalsetruefalseOthernanafalsefalse3falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-05-02T00:00:002011-05-01T00:00:00falsefalseLongleaf Partners International Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_S000009313Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseReturn After Taxes on Distributions and Sale of Fund Sharesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsAndSalesMemberrr_PerformanceMeasureAxisexplicitMemberLongleaf Partners International FundReturn After Taxes on Distributions and Sale of Fund SharesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00Longleaf Partners International Fund (net of fees and expenses)Longleaf Partners International Fund (net of fees and expenses)falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsefalsefalse3truetruetrue0.08900.0890[1]falsefalsefalsetruefalse4truetruetrue0.02200.0220[1]falsefalsefalsetruefalse5truetruetrue0.05320.0532[1]falsefalsefalsetruefalseOthernanafalsefalse4falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-05-02T00:00:002011-05-01T00:00:00falsefalseLongleaf Partners International Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_S000009313Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseMSCI EAFE Index (Net of Dividend Tax Withholding)rr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldilpft806636_MSCIEAFEIndexMemberrr_PerformanceMeasureAxisexplicitMemberLongleaf Partners International FundMSCI EAFE Index (Net of Dividend Tax Withholding)Standard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse00Comparative IndexComparative Indexfalsefalsefalsetruefalse2falsefalsefalse00(reflects no deductions for fees or expenses)(reflects no deductions for fees or expenses)falsefalsefalsetruefalse3truetruetrue0.07750.0775falsefalsefalsetruefalse4truetruetrue0.02460.0246falsefalsefalsetruefalse5truetruetrue0.03500.0350falsefalsefalsetruefalseOthernanafalsefalse1After-tax returns 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 the investor's tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. In some cases the return after taxes may exceed the return before taxes due to an assumed tax benefit from any losses on a sale of Fund shares at the end of the measurement period.54Average Annual Total Returns
Longleaf Partners International FundUnKnownUnKnownUnKnownUnKnownfalsetrueColumnprimaryElement*RowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to PerformanceTableData.No authoritative reference available.falsefalse175Risk/Return SummaryUnKnownUnKnownUnKnownUnKnownfalsetrue