| Label | Element | Value | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Document Type | dei_DocumentType | 485BPOS | ||||||||||||||||||||||
| Document Period End Date | dei_DocumentPeriodEndDate | Sep. 30, 2024 | ||||||||||||||||||||||
| Entity Registrant Name | dei_EntityRegistrantName | Northern Lights Fund Trust | ||||||||||||||||||||||
| Entity Central Index Key | dei_EntityCentralIndexKey | 0001314414 | ||||||||||||||||||||||
| Entity Inv Company Type | dei_EntityInvCompanyType | N-1A | ||||||||||||||||||||||
| Amendment Flag | dei_AmendmentFlag | false | ||||||||||||||||||||||
| Trading Symbol | dei_TradingSymbol | apt | ||||||||||||||||||||||
| Document Creation Date | dei_DocumentCreationDate | Jan. 23, 2025 | ||||||||||||||||||||||
| Document Effective Date | dei_DocumentEffectiveDate | Jan. 28, 2025 | ||||||||||||||||||||||
| Prospectus Date | rr_ProspectusDate | Jan. 28, 2025 | ||||||||||||||||||||||
| 13D Activist Fund | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Risk/Return [Heading] | rr_RiskReturnHeading | FUND SUMMARY | ||||||||||||||||||||||
| Objective [Heading] | rr_ObjectiveHeading | Investment Objective: | ||||||||||||||||||||||
| Objective, Primary [Text Block] | rr_ObjectivePrimaryTextBlock | The Funds investment objective is capital appreciation.
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| Expense [Heading] | rr_ExpenseHeading | Fees and Expenses of the Fund: | ||||||||||||||||||||||
| Expense Narrative [Text Block] | rr_ExpenseNarrativeTextBlock | This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. More information about these and other discounts is available from your financial intermediary and in How to Purchase Shares on page 10 of the Funds Prospectus.
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| Shareholder Fees Caption [Text] | rr_ShareholderFeesCaption | Shareholder Fees (fees paid directly from your investment) | ||||||||||||||||||||||
| Operating Expenses Caption [Text] | rr_OperatingExpensesCaption | Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||||||
| 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 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 Funds performance. During the most recent fiscal year, the Funds portfolio turnover rate was 104% of the average value of its portfolio. |
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| Portfolio Turnover, Rate | rr_PortfolioTurnoverRate | 104.00% | ||||||||||||||||||||||
| 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.
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| Expense Example by, Year, Caption [Text] | rr_ExpenseExampleByYearCaption | 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 those periods. The Example also assumes that your investment has a 5% return each year and that the Funds operating expenses remain the same. Although your actual costs may be higher or lower, based upon these assumptions your costs would be: | ||||||||||||||||||||||
| Strategy [Heading] | rr_StrategyHeading | Principal Investment Strategies: | ||||||||||||||||||||||
| Strategy Narrative [Text Block] | rr_StrategyNarrativeTextBlock | 13D Management LLC (the Adviser), seeks to achieve the Funds investment objective by investing primarily in common stocks of U.S. companies of any market capitalization that are the target of shareholder activism. The Adviser defines an activist as an investor who holds or takes a long position in a companys shares and either (A) has a history of activist investing and/or (B) has publicly disclosed a catalyst for change such as seeking board seats, improving operations and/or corporate governance practices, spinning-off an operating division or selling a significant amount of company assets (such an investor being referred to herein as an activist). The Adviser reviews all material activist situations and makes investment decisions based on its knowledge of the activist investor involved, the industry, the shareholder base, the activists average cost, its strategy and the Advisers determination of the chance of success and potential impact on share price. The Adviser only selects situations where the shareholder will be improving or participating in corporate governance or otherwise influencing management. Accordingly, approximately 75% of the Funds portfolio positions has historically had a shareholder representative on the board of directors who advocates for best-in-class corporate governance practices and a shareholder focused mentality. The Adviser does not only select companies with good corporate governance, because it believes there is more of a social and economic benefit in identifying poor corporate governance companies and supporting a transition to good corporate governance. Implementing best corporate governance practices can range from completely changing corporate culture to replacing entrenched, conflicted and self-dealing management teams. It is the Advisers experience that it is the governance element that also leads to environmental and social improvements in the business practices of the Funds portfolio companies. Every portfolio position contains an engaged investor and most contain a shareholder representative on the board of directors.
The Adviser uses the following selection guidelines to create and manage the Funds investment portfolio:
While these guidelines will define the trading horizon, this horizon may change based on other events. For example, an early exit may be warranted after the activist has attained most of its goals, there has been a sufficient return on the investment, and there are other activist opportunities that the Adviser believes offer a better return. The Fund is non-diversified, which means that it may invest in fewer issuers than a diversified fund. The Adviser may engage in frequent buying and selling of securities in managing the Funds portfolio.
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| Risk [Heading] | rr_RiskHeading | Principal Investment Risks: | ||||||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | As with all mutual funds, there is the risk that you could lose money through your investment in the Fund. Many factors affect the Funds net asset value and performance.
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| Bar Chart and Performance Table [Heading] | rr_BarChartAndPerformanceTableHeading | Performance: | ||||||||||||||||||||||
| Performance Narrative [Text Block] | rr_PerformanceNarrativeTextBlock | The bar chart and performance table below show the variability of the Funds returns, which is some indication of the risks of investing in the Fund. The bar chart shows performance of the Funds Class I shares for each of the last ten full calendar years. Class A and Class C shares will be similar because they invest in the same portfolio of securities and underlying funds, but their performance will vary due to differences in fees. The performance table compares the performance of the Funds Class I, Class A and Class C shares over time to the performance of a broad-based securities market index and a supplement index. You should be aware that the Funds past performance (before and after taxes) may not be an indication of how the Fund will perform in the future. Updated performance information is available at no cost by visiting www.13DActivistFund.com or by calling 1-877-413-3228.
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| Performance Information Illustrates Variability of Returns [Text] | rr_PerformanceInformationIllustratesVariabilityOfReturns | The bar chart and performance table below show the variability of the Funds returns, which is some indication of the risks of investing in the Fund. | ||||||||||||||||||||||
| Performance Availability Phone [Text] | rr_PerformanceAvailabilityPhone | 1-877-413-3228 | ||||||||||||||||||||||
| Performance Availability Website Address [Text] | rr_PerformanceAvailabilityWebSiteAddress | www.13DActivistFund.com | ||||||||||||||||||||||
| Performance Past Does Not Indicate Future [Text] | rr_PerformancePastDoesNotIndicateFuture | You should be aware that the Funds past performance (before and after taxes) may not be an indication of how the Fund will perform in the future. | ||||||||||||||||||||||
| Bar Chart [Heading] | rr_BarChartHeading | Class I Annual Total Return for Calendar Years Ended December 31 | ||||||||||||||||||||||
| Bar Chart Closing [Text Block] | rr_BarChartClosingTextBlock |
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| Highest Quarterly Return, Label | rr_HighestQuarterlyReturnLabel | Best Quarter | ||||||||||||||||||||||
| Highest Quarterly Return, Date | rr_BarChartHighestQuarterlyReturnDate | Jun. 30, 2020 | ||||||||||||||||||||||
| Highest Quarterly Return | rr_BarChartHighestQuarterlyReturn | 29.98% | ||||||||||||||||||||||
| Lowest Quarterly Return, Label | rr_LowestQuarterlyReturnLabel | Worst Quarter | ||||||||||||||||||||||
| Lowest Quarterly Return, Date | rr_BarChartLowestQuarterlyReturnDate | Mar. 31, 2020 | ||||||||||||||||||||||
| Lowest Quarterly Return | rr_BarChartLowestQuarterlyReturn | (30.25%) | ||||||||||||||||||||||
| Performance Table Heading | rr_PerformanceTableHeading | Performance Table Average Annual Total Returns (For periods ended December 31, 2024) | ||||||||||||||||||||||
| Performance Table Market Index Changed | rr_PerformanceTableMarketIndexChanged | This index has been selected as the Funds primary benchmark because it is more reflective of the Funds portfolio holdings. Investors cannot invest directly in an index or benchmark. | ||||||||||||||||||||||
| Performance Table Uses Highest Federal Rate | rr_PerformanceTableUsesHighestFederalRate | After-tax returns were calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. | ||||||||||||||||||||||
| Performance Table Not Relevant to Tax Deferred | rr_PerformanceTableNotRelevantToTaxDeferred | Actual after-tax returns depend on an investors tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold shares of the Fund through tax-deferred arrangements, such as 401(k) plans or Individual Retirement Accounts (IRAs). | ||||||||||||||||||||||
| Performance Table One Class of after Tax Shown [Text] | rr_PerformanceTableOneClassOfAfterTaxShown | After tax returns for Class A and Class C shares, which are not shown, will vary from Class I shares. | ||||||||||||||||||||||
| Performance Table Closing [Text Block] | rr_PerformanceTableClosingTextBlock | After-tax returns were calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investors tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold shares of the Fund through tax-deferred arrangements, such as 401(k) plans or Individual Retirement Accounts (IRAs). After tax returns for Class A and Class C shares, which are not shown, will vary from Class I shares. |
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| 13D Activist Fund | Russell 2500 Total Return Index | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 11.99% | [1] | |||||||||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 8.77% | [1] | |||||||||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 8.85% | [1] | |||||||||||||||||||||
| 13D Activist Fund | Russell 2000Total Return Index | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 11.54% | [2] | |||||||||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 7.40% | [2] | |||||||||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 7.82% | [2] | |||||||||||||||||||||
| 13D Activist Fund | Market And Geopolitical Risk [Member] | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
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| 13D Activist Fund | Equity Securities Risk [Member] | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
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| 13D Activist Fund | Risk Nondiversified Status [Member] | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
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| 13D Activist Fund | Small And Medium Capitalization Company Risk [Member] | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
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| 13D Activist Fund | Conflicts Of Interest Risk [Member] | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
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| 13D Activist Fund | Management Risk [Member] | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
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| 13D Activist Fund | Regulatory Risk [Member] | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock |
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| 13D Activist Fund | Shareholder Concentration Risk [Member] | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | |||||||||||||||||||||||
| 13D Activist Fund | 13D Activist Fund Class A | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Trading Symbol | dei_TradingSymbol | DDDAX | ||||||||||||||||||||||
| Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | 5.75% | ||||||||||||||||||||||
| Maximum Deferred Sales Charge (as a percentage of Offering Price) | rr_MaximumDeferredSalesChargeOverOfferingPrice | 1.00% | ||||||||||||||||||||||
| Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) | rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther | none | ||||||||||||||||||||||
| Redemption Fee (as a percentage of Amount Redeemed) | rr_RedemptionFeeOverRedemption | none | ||||||||||||||||||||||
| Management Fees (as a percentage of Assets) | rr_ManagementFeesOverAssets | 1.50% | ||||||||||||||||||||||
| Distribution and Service (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | 0.25% | ||||||||||||||||||||||
| Other Expenses (as a percentage of Assets): | rr_OtherExpensesOverAssets | none | ||||||||||||||||||||||
| Acquired Fund Fees and Expenses | rr_AcquiredFundFeesAndExpensesOverAssets | 0.01% | [3] | |||||||||||||||||||||
| Expenses (as a percentage of Assets) | rr_ExpensesOverAssets | 1.76% | [4] | |||||||||||||||||||||
| Expense Breakpoint Discounts [Text] | rr_ExpenseBreakpointDiscounts | You may qualify for sales charge discounts on purchases of Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in the Fund. | ||||||||||||||||||||||
| Expense Breakpoint, Minimum Investment Required [Amount] | rr_ExpenseBreakpointMinimumInvestmentRequiredAmount | $ 50,000 | ||||||||||||||||||||||
| Expense Example, with Redemption, 1 Year | rr_ExpenseExampleYear01 | 744 | ||||||||||||||||||||||
| Expense Example, with Redemption, 3 Years | rr_ExpenseExampleYear03 | 1,097 | ||||||||||||||||||||||
| Expense Example, with Redemption, 5 Years | rr_ExpenseExampleYear05 | 1,474 | ||||||||||||||||||||||
| Expense Example, with Redemption, 10 Years | rr_ExpenseExampleYear10 | $ 2,529 | ||||||||||||||||||||||
| Label | rr_AverageAnnualReturnLabel | return before taxes with sales load | ||||||||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | (4.42%) | ||||||||||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 4.25% | ||||||||||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 5.84% | ||||||||||||||||||||||
| 13D Activist Fund | 13D Activist Fund Class C | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Trading Symbol | dei_TradingSymbol | DDDCX | ||||||||||||||||||||||
| 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% | ||||||||||||||||||||||
| Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) | rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther | none | ||||||||||||||||||||||
| Redemption Fee (as a percentage of Amount Redeemed) | rr_RedemptionFeeOverRedemption | none | ||||||||||||||||||||||
| Management Fees (as a percentage of Assets) | rr_ManagementFeesOverAssets | 1.50% | ||||||||||||||||||||||
| Distribution and Service (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | 1.00% | ||||||||||||||||||||||
| Other Expenses (as a percentage of Assets): | rr_OtherExpensesOverAssets | none | ||||||||||||||||||||||
| Acquired Fund Fees and Expenses | rr_AcquiredFundFeesAndExpensesOverAssets | 0.01% | [3] | |||||||||||||||||||||
| Expenses (as a percentage of Assets) | rr_ExpensesOverAssets | 2.51% | [4] | |||||||||||||||||||||
| Expense Example, with Redemption, 1 Year | rr_ExpenseExampleYear01 | $ 254 | ||||||||||||||||||||||
| Expense Example, with Redemption, 3 Years | rr_ExpenseExampleYear03 | 782 | ||||||||||||||||||||||
| Expense Example, with Redemption, 5 Years | rr_ExpenseExampleYear05 | 1,335 | ||||||||||||||||||||||
| Expense Example, with Redemption, 10 Years | rr_ExpenseExampleYear10 | $ 2,846 | ||||||||||||||||||||||
| Label | rr_AverageAnnualReturnLabel | return before taxes | ||||||||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 0.63% | ||||||||||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 4.70% | ||||||||||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 5.67% | ||||||||||||||||||||||
| 13D Activist Fund | 13D Activist Fund Class I | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| Trading Symbol | dei_TradingSymbol | DDDIX | ||||||||||||||||||||||
| 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 | ||||||||||||||||||||||
| Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) | rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther | none | ||||||||||||||||||||||
| Redemption Fee (as a percentage of Amount Redeemed) | rr_RedemptionFeeOverRedemption | none | ||||||||||||||||||||||
| Management Fees (as a percentage of Assets) | rr_ManagementFeesOverAssets | 1.50% | ||||||||||||||||||||||
| Distribution and Service (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | none | ||||||||||||||||||||||
| Other Expenses (as a percentage of Assets): | rr_OtherExpensesOverAssets | none | ||||||||||||||||||||||
| Acquired Fund Fees and Expenses | rr_AcquiredFundFeesAndExpensesOverAssets | 0.01% | [3] | |||||||||||||||||||||
| Expenses (as a percentage of Assets) | rr_ExpensesOverAssets | 1.51% | [4] | |||||||||||||||||||||
| Expense Example, with Redemption, 1 Year | rr_ExpenseExampleYear01 | $ 154 | ||||||||||||||||||||||
| Expense Example, with Redemption, 3 Years | rr_ExpenseExampleYear03 | 477 | ||||||||||||||||||||||
| Expense Example, with Redemption, 5 Years | rr_ExpenseExampleYear05 | 824 | ||||||||||||||||||||||
| Expense Example, with Redemption, 10 Years | rr_ExpenseExampleYear10 | $ 1,802 | ||||||||||||||||||||||
| Annual Return 2015 | rr_AnnualReturn2015 | (10.92%) | ||||||||||||||||||||||
| Annual Return 2016 | rr_AnnualReturn2016 | 19.57% | ||||||||||||||||||||||
| Annual Return 2017 | rr_AnnualReturn2017 | 23.78% | ||||||||||||||||||||||
| Annual Return 2018 | rr_AnnualReturn2018 | (13.47%) | ||||||||||||||||||||||
| Annual Return 2019 | rr_AnnualReturn2019 | 27.15% | ||||||||||||||||||||||
| Annual Return 2020 | rr_AnnualReturn2020 | 18.93% | ||||||||||||||||||||||
| Annual Return 2021 | rr_AnnualReturn2021 | 19.55% | ||||||||||||||||||||||
| Annual Return 2022 | rr_AnnualReturn2022 | (17.51%) | ||||||||||||||||||||||
| Annual Return 2023 | rr_AnnualReturn2023 | 10.85% | ||||||||||||||||||||||
| Annual Return 2024 | rr_AnnualReturn2024 | 1.68% | ||||||||||||||||||||||
| Label | rr_AverageAnnualReturnLabel | return before taxes | ||||||||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 1.68% | ||||||||||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 5.74% | ||||||||||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 6.73% | ||||||||||||||||||||||
| 13D Activist Fund | 13D Activist Fund Class I | return after taxes on distributions | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 0.56% | ||||||||||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 4.07% | ||||||||||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 5.60% | ||||||||||||||||||||||
| 13D Activist Fund | 13D Activist Fund Class I | return after taxes on distributions and sale of Fund shares | ||||||||||||||||||||||||
| Prospectus [Line Items] | rr_ProspectusLineItems | |||||||||||||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 1.89% | ||||||||||||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 4.41% | ||||||||||||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 5.30% | ||||||||||||||||||||||
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