2.2.0.25truefalse010002 - Document - Risk/Return Summary - Direxion/Wilshire Dynamic Fund {Unlabeled}falsefalsetrue1falsefalsetruefalse{dei_DocumentInformationDocumentAxis} : Direxion/Wilshire Dynamic Fund 3/1/2010 - 2/28/2011 TwelveMonthsEnded_28Feb2011_S000024977_Memberhttp://www.sec.gov/CIK0001040587duration2010-03-01T00:00:002011-02-28T00:00:00falsefalsedf1040587_S000024977Memberdei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldidf1040587_S000024977Memberdei_DocumentInformationDocumentAxisexplicitMemberPureStandardhttp://www.xbrl.org/2003/instancepurexbrli03false0rr_RiskReturnHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Direxion/Wilshire Dynamic FundfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Summary Investment Objectives/Goals Include the following information, in plain English under rule 421(d) under the Securities Act, in the order and subject matter indicatedReference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 falsefalseRisk/Return [Heading]4false0rr_ObjectiveHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Investment Objective.falsefalsefalsefalsefalseOtherxbrli: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 falsefalseObjective [Heading]5false0rr_ObjectivePrimaryTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00The Direxion/Wilshire Dynamic Fund seeks capital appreciation.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 falsefalseObjective, Primary [Text Block]6false0rr_ExpenseHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Fees and Expenses of the Fund.falsefalsefalsefalsefalseOtherxbrli: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 falsefalseExpense [Heading]7false0rr_ExpenseNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00The tables that follow describe the fees and expenses that you may pay if you buy and hold shares of the 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 falsefalseExpense Narrative [Text Block]8false0rr_ShareholderFeesCaptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Shareholder Fees&#160;(fees paid directly from your investment)falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringShareholder Fees (fees paid directly from your investment).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subsection table falsefalseShareholder Fees Caption [Text]9false0rr_ShareholderFeesTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div>&lt;div&gt; &amp;lt;div style="display:none;" &amp;gt;~ http://direxionfunds.com/role/ShareholderFeesDirexionWilshireDynamicFund column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row dei_DocumentInformationDocumentAxis compact df1040587 _S000024977_Member * ~&amp;lt;/div&amp;gt; &lt;/div&gt;</div>falsefalse<div>&lt;div&gt; &amp;lt;div style="display:none;" &amp;gt;~ http://direxionfunds.com/role/ShareholderFeesDirexionWilshireDynamicFund column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row dei_DocumentInformationDocumentAxis compact df1040587 _S000024977_Member * ~&amp;lt;/div&amp;gt; &lt;/div&gt;</div>falsehttp://direxionfunds.com/role/ShareholderFeesDirexionWilshireDynamicFundfalsefalse020012 - 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A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read "Maximum Sales Charge (Load)" and show the maximum cumulative percentage. 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"Redemption Fee" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 2 -Subparagraph b -Subsection instructions falsefalseRedemption Fee (as a percentage of amount redeemed on shares redeemed within 90 days of date of purchase, if applicable)0rr_RedemptionFeeOverRedemptiontruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01000.0100falsefalsefalsetruefalse2truetruetrue0.01000.0100falsefalsefalsetruefalse3truetruetrue0.00000.0000falsefalsefalsetruefalse4truetruetrue0.01000.0100falsefalsefalsetruefalseOthernanafalsefalseRedemption Fee (as a percentage of amount redeemed on shares redeemed within 90 days of date of purchase, if applicable)44Shareholder Fees - Direxion/Wilshire Dynamic Fund Direxion/Wilshire Dynamic FundUnKnownUnKnownUnKnownUnKnownfalsetrueColumnperiodPeriod*Columndei_DocumentInformationDocumentAxisAxis*Columnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to ShareholderFeesData.No authoritative reference available.falsefalseShareholder Fees [Table]10false0rr_OperatingExpensesCaptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Annual Fund Operating Expenses&#160;(expenses that you pay each year as a percentage of the value of your investment)falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringAnnual Fund Operating Expenses (ongoing expenses that you pay each year as a percentage of the value of your investment)Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 7 -Subsection table falsefalseOperating Expenses Caption [Text]11false0rr_AnnualFundOperatingExpensesTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div>&lt;div&gt; &amp;lt;div style="display:none;" &amp;gt;~ http://direxionfunds.com/role/AnnualFundOperatingExpensesDirexionWilshireDynamicFund column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row rr_DocumentInformationDocumentAxis compact df1040587 _S000024977_Member * ~&amp;lt;/div&amp;gt; &lt;/div&gt;</div>falsefalse<div>&lt;div&gt; &amp;lt;div style="display:none;" &amp;gt;~ http://direxionfunds.com/role/AnnualFundOperatingExpensesDirexionWilshireDynamicFund column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row rr_DocumentInformationDocumentAxis compact df1040587 _S000024977_Member * ~&amp;lt;/div&amp;gt; &lt;/div&gt;</div>falsehttp://direxionfunds.com/role/AnnualFundOperatingExpensesDirexionWilshireDynamicFundfalsefalse020022 - 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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 falsefalseDistribution and/or Service (12b-1) Fees0rr_DistributionAndService12b1FeesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00250.0025falsefalsefalsetruefalse2truetruetrue0.00000.0000falsefalsefalsetruefalse3truetruetrue0.00750.0075falsefalsefalsetruefalse4truetruetrue0.00750.0075falsefalsefalsetruefalseOthernanafalsefalseDistribution and/or Service (12b-1) Fees3falseRowprimaryElement*6false0rr_OtherExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruetrue0.00400.0040falsefalsefalsetruefalse2truetruetrue0.00450.0045falsefalsefalsetruefalse3truetruetrue0.00550.0055falsefalsefalsetruefalse4truetruetrue0.00400.0040falsefalsefalsetruefalseOtherrr: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 falsefalseOther Expenses0rr_OtherExpensesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00400.0040falsefalsefalsetruefalse2truetruetrue0.00450.0045falsefalsefalsetruefalse3truetruetrue0.00550.0055falsefalsefalsetruefalse4truetruetrue0.00400.0040falsefalsefalsetruefalseOthernanafalsefalseOther Expenses4falseRowprimaryElement*7false0rr_Component1OtherExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruetrue0.00300.0030falsefalsefalsetruefalse2truetruetrue0.00300.0030falsefalsefalsetruefalse3truetruetrue0.00300.0030falsefalsefalsetruefalse4truetruetrue0.00300.0030falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureThe Fund may subdivide this caption into no more than three subcaptions that identify the largest expense or expenses comprising "Other Expenses," but must include a total of all "Other Expenses." 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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 falsefalseExpense Example, By Year, Column [Text]falseUSDfalsefalse$2falseColumnprimaryElement*5false0rr_ExpenseExampleYear01rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsetrue161161falsefalsefalsetruefalse2truefalsetrue140140falsefalsefalsetruefalse3truefalsetrue322322falsefalsefalsetruefalse4truefalsetrue211211falsefalsefalsetruefalseMonetaryrr: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 4 -Subsection instructions falsefalse1 YearfalseUSDfalsefalse$3falseColumnprimaryElement*6false0rr_ExpenseExampleYear03rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsetrue499499falsefalsefalsetruefalse2truefalsetrue437437falsefalsefalsetruefalse3truefalsetrue784784falsefalsefalsetruefalse4truefalsetrue652652falsefalsefalsetruefalseMonetaryrr: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 falsefalse3 YearsfalseUSDfalsefalse$4falseColumnprimaryElement*7false0rr_ExpenseExampleYear05rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsetrue860860falsefalsefalsetruefalse2truefalsetrue755755falsefalsefalsetruefalse3truefalsetrue12731273falsefalsefalsetruefalse4truefalsetrue11191119falsefalsefalsetruefalseMonetaryrr: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 falsefalse5 YearsfalseUSDfalsefalse$5falseColumnprimaryElement*8false0rr_ExpenseExampleYear10rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsetrue18781878falsefalsefalsetruefalse2truefalsetrue16571657falsefalsefalsetruefalse3truefalsetrue26192619falsefalsefalsetruefalse4truefalsetrue24102410falsefalsefalsetruefalseMonetaryrr: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. 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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 5 -Subsection instructions falsefalsePortfolio Turnover [Heading]16false0rr_PortfolioTurnoverTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &#8220;turns over&#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes to shareholders who hold Fund shares in a taxable account. These costs, which are not reflected in Annual Fund&#160;Operating Expenses or in the example, affect the Fund&#8217;s performance. 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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 falsefalseStrategy [Heading]18false0rr_StrategyNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>Under normal circumstances, the Fund is managed by the Rafferty Asset Management, LLC (&#8220;Rafferty&#8221; or the &#8220;Adviser&#8221;) pursuant to Wilshire Associates Incorporated&#8217;s (&#8220;Wilshire&#8221; or the &#8220;Subadviser&#8221;) traditional asset allocation model which allocates approximately 60% of the Fund&#8217;s total assets to equity securities and 40% to fixed income securities, with a tactical overlay to increase or decrease the Fund&#8217;s risk exposure based on the Subadviser&#8217;s outlook for the market. By comparing the Subadviser&#8217;s own forecasts with those forecasts of a universe of institutional investors, the Subadviser is able to identify asset classes that it believes are over- and under-valued. The differences between the Subadviser&#8217;s forecasts and those of the universe of institutional investors represent opportunities that can be exploited through disciplined tactical, or short-term, asset allocation strategies. The Subadviser&#8217;s tactical model evaluates asset class allocations on a monthly basis and makes relevant adjustments, which may result in a high portfolio turnover rate for the Fund.</p><p>The Adviser will implement these strategies for the Fund through the use of financial instruments, including futures contracts; options on securities, indices and futures contracts; equity caps, collars and floors; swap agreements; forward contracts, repurchase agreements and reverse repurchase agreements (collectively, &#8220;Financial Instruments&#8221;), to maximize the Fund&#8217;s risk-adjusted return. The equity portion of the Fund is comprised of the common stocks, preferred stocks, convertible securities and warrants of U.S. and foreign issuers, including small and mid capitalization companies and open- and closed-end investment companies, exchange-traded funds (&#8220;ETFs&#8221;) and Financial Instruments that provide exposure to U.S. and foreign equity indices. The fixed income portion of the Fund&#8217;s portfolio is comprised of high-quality fixed income securities including investment-grade bonds, debt securities issued by U.S. government and corporate issuers and Financial Instruments.</p><p>In response to market conditions, the Subadviser may recommend that the Adviser rebalance the Fund&#8217;s portfolio, use short positions and/or employ leverage in its tactical allocations. The Fund is a &#8220;non-diversified&#8221; fund, meaning that a relatively high percentage of its assets may be invested in a limited number of issuers of securities.</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 falsefalseStrategy Narrative [Text Block]19false0rr_RiskHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Principal Investment RisksfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNarrative Risk Disclosure.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 1 -Subsection b falsefalseRisk [Heading]20false0rr_RiskNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>An investment in the Fund entails risk. The Fund could lose money or its performance could trail that of other investment alternatives. Rafferty Asset Management, LLC (&#8220;Rafferty&#8221; or the &#8220;Adviser&#8221;) cannot guarantee that the Fund will achieve its objective. In addition, the Fund presents some risks not traditionally associated with most mutual funds. It is important that investors closely review and understand these risks before making an investment in the Fund. Turbulence in financial markets and reduced liquidity in equity, credit and fixed income markets could negatively affect many issuers worldwide, including the Fund. There is the risk that you could lose all or a portion of your money on your investment in the Fund.</p><p><i>&#8226; Active and Frequent Trading Risk</i> &#8212; The Fund may engage in active and frequent trading, leading to increased portfolio turnover, higher transaction costs, and the possibility of increased net realized capital gains, including net short-term capital gains that will generally be taxable to shareholders as ordinary income when distributed to them.</p><p><i>&#8226; Adverse Market Conditions Risk</i> &#8212; The performance of the Fund is designed to correlate to the performance of an index or benchmark. As a consequence, the Fund&#8217;s performance will suffer during conditions which are adverse to the Fund&#8217;s investment goals.</p><p><i>&#8226; Counterparty Risk</i> &#8212; The Fund may invest in financial instruments involving counterparties for the purpose of attempting to gain exposure to particular securities, asset classes, or an index without actually purchasing those securities or investments, or to hedge a position. The Fund may enter into swap agreements with a limited number of counterparties, which may increase the Fund&#8217;s exposure to counterparty credit risk. Swap agreements also may be considered to be illiquid.</p><p><i>&#8226; Credit Risk</i> &#8212; The Fund could lose money if the issuer of a debt security is unable to meet its financial obligations or goes bankrupt or if a debt security in which it has a short position is upgraded or generally improves its standing.</p><p><i>&#8226; Derivatives Risk</i> &#8212; The Fund uses investment techniques, including investments in derivatives, which may be considered aggressive. Investments in derivatives are subject to market risks that may cause their prices to fluctuate over time and may increase the volatility of the Fund. The use of derivatives may expose the Fund to additional risks that it would not be subject to if it invested directly in the securities underlying those derivatives. The use of derivatives may result in larger losses or smaller gains than otherwise would be the case.</p><p><i>&#8226; Equity Securities Risk</i> &#8212; Investments in publicly issued equity securities in general are subject to market risks that may cause their prices to fluctuate over time and in turn cause the Fund&#8217;s net asset value to fluctuate.</p><p><i>&#8226; Foreign Securities Risk</i> &#8212; Indirectly investing in foreign instruments may involve greater risks than investing in domestic instruments. As a result, the Fund&#8217;s returns and net asset values may be affected to a large degree by fluctuations in currency exchange rates, political, diplomatic or economic conditions and regulatory requirements in other countries.</p><p><i>&#8226; Interest Rate Risk</i> &#8212; Debt securities have varying levels of sensitivity to changes in interest rates. The longer the maturity of a security, the greater the impact a change in interest rates could have on the security&#8217;s price.</p><p><i>&#8226; Leverage Risk</i> &#8212; The Fund may employ leveraged investment techniques, including the use of financial instruments to produce leveraged results as well as borrowing money for investment purposes. Use of leverage can magnify the effects of changes in the value of the Fund and makes the Fund&#8217;s returns more volatile, which may affect the performance of the Fund. The leveraged investment techniques that the Fund employs could cause investors in the Fund to lose more money in adverse environments.</p><p><i>&#8226; Market Risk</i> &#8212; The Fund is subject to market risks that can affect the value of its shares. These risks include political, regulatory, market and economic developments, including developments that impact specific economic sectors, industries or segments of the market.</p><p><i>&#8226; Non-Diversification Risk</i> &#8212; A non-diversified fund invests a high percentage of its assets in a limited number of securities, exposing the Fund to fluctuations in net asset value and total return.</p><p><i>&#8226; Options and Futures Contracts Risk</i> &#8212; Options and futures prices may diverge from prices of their underlying instruments. Losses may occur due to unanticipated market price movements, the lack of a liquid market for an option or futures contract at a particular time or premiums paid by a Fund.</p><p><i>&#8226; Other Investment Companies and Exchange Traded Funds Risk</i> &#8212; Investments in the securities of other investment companies and ETFs may involve duplication of advisory fees and certain other expenses. Fund shareholders indirectly bear the Fund&#8217;s proportionate share of the fees and expenses paid by shareholders of the other investment company or ETF, in addition to the fees and expenses Fund shareholders directly bear in connection with the Fund&#8217;s own operations. If the investment company or ETF fails to achieve its investment objective, the value of the Fund&#8217;s investment will decline, adversely affecting the Fund&#8217;s performance. In addition, ETF shares potentially may trade at a discount or a premium and are subject to brokerage and other trading costs, which could result in greater expenses to a Fund. Finally, because the value of ETF shares depends on the demand in the market, the Adviser may not be able to liquidate a Fund&#8217;s holdings in an ETF&#8217;s shares at the most optimal time, adversely affecting the Fund&#8217;s performance.</p><p><i>&#8226; Security Selection Risk</i> &#8212; Securities selected by the portfolio manager may perform differently than the overall market or may not meet the portfolio manager&#8217;s expectations.</p><p><i>&#8226; Shorting Securities Risk</i> &#8212; Short positions are designed to profit from a decline in the price of particular securities, baskets of securities or indices. The Fund will lose value if and when the instrument&#8217;s price rises &#8211; a result that is the opposite from traditional mutual funds.</p><p><i>&#8226; Small- and Mid-Capitalization Companies Risk</i> &#8212; Investing in the securities of small and mid capitalization companies involves greater risks and the possibility of greater price volatility than investing in more established, larger capitalization companies, since smaller companies may have more limited operating history, product lines, and financial resources than larger companies.</p><p><i>&#8226; Valuation Time Risk</i> &#8212; The Fund values its portfolio as of the close of regular trading on the NYSE (generally 4:00 p.m. Eastern time). Foreign market indices may close before the NYSE opens or may not be open for business on the same calendar days as the Fund. As a result, the daily performance of the Fund, if it tracks a foreign market index, can vary from the performance of that index.</p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringNarrative Risk Disclosure. 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Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. 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Investor ClassThe Direxion/Wilshire Fund&#160;&#8212; Investor Classfalsefalsefalsetruefalse3falsetruefalse00Return Before TaxesReturn Before Taxesfalsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsefalsefalse5truetruetrue0.09270.0927falsefalsefalsetruefalse6truetruetrue0.28210.2821falsefalsefalsetruefalse7falsetruefalse002009-03-022009-03-02falsefalsetruetruefalseOthernanafalsefalseDirexion/Wilshire Dynamic Fund Investor Class, Direxion/Wilshire Dynamic Fund Return Before Taxes3falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-03-01T00:00:002011-02-28T00:00:00falsefalseDirexion/Wilshire Dynamic Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldidf1040587_S000024977Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseInvestor Class, Direxion/Wilshire Dynamic Fundrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidf1040587_C000074301Memberrr_ProspectusShareClassAxisexplicitMemberfalsefalseAfter Taxes on Distributionsrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsMemberrr_PerformanceMeasureAxisexplicitMemberDirexion/Wilshire Dynamic FundInvestor Class, Direxion/Wilshire Dynamic FundAfter Taxes on DistributionsStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsetruefalse00The Direxion/Wilshire Fund&#160;&#8212; Investor ClassThe Direxion/Wilshire Fund&#160;&#8212; Investor Classfalsefalsefalsetruefalse3falsetruefalse00Return After Taxes on DistributionsReturn After Taxes on Distributionsfalsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsefalsefalse5truetruetrue0.07260.0726falsefalsefalsetruefalse6truetruetrue0.26330.2633falsefalsefalsetruefalse7falsetruefalse002009-03-022009-03-02falsefalsetruetruefalseOthernanafalsefalseDirexion/Wilshire Dynamic Fund Investor Class, Direxion/Wilshire Dynamic Fund After Taxes on Distributions4falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-03-01T00:00:002011-02-28T00:00:00falsefalseDirexion/Wilshire Dynamic Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldidf1040587_S000024977Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseInvestor Class, Direxion/Wilshire Dynamic Fundrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidf1040587_C000074301Memberrr_ProspectusShareClassAxisexplicitMemberfalsefalseAfter Taxes on Distributions and Salesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsAndSalesMemberrr_PerformanceMeasureAxisexplicitMemberDirexion/Wilshire Dynamic FundInvestor Class, Direxion/Wilshire Dynamic FundAfter Taxes on Distributions and SalesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsetruefalse00The Direxion/Wilshire Fund&#160;&#8212; Investor ClassThe Direxion/Wilshire Fund&#160;&#8212; Investor Classfalsefalsefalsetruefalse3falsetruefalse00Return After Taxes on Distributions and Sale of Fund&#160;SharesReturn After Taxes on Distributions and Sale of Fund&#160;Sharesfalsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsefalsefalse5truetruetrue0.06060.0606falsefalsefalsetruefalse6truetruetrue0.23250.2325falsefalsefalsetruefalse7falsetruefalse002009-03-022009-03-02falsefalsetruetruefalseOthernanafalsefalseDirexion/Wilshire Dynamic Fund Investor Class, Direxion/Wilshire Dynamic Fund After Taxes on Distributions and Sales5falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-03-01T00:00:002011-02-28T00:00:00falsefalseMSCI World Indexdei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldidf1040587_MSCIWorldIndexMemberdei_DocumentInformationDocumentAxisexplicitMembertruefalseShare Classesrr_ProspectusShareClassAxisrr_ShareClassDomainrr_ProspectusShareClassAxisexplicitMembertruefalsePerformance Measurerr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberMSCI World IndexShare ClassesPerformance MeasureStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsetruefalse00MSCI World IndexMSCI World Indexfalsefalsefalsetruefalse4falsefalsefalse00(reflects no deduction for fees, expenses or taxes)(reflects no deduction for fees, expenses or taxes)falsefalsefalsetruefalse5truetruetrue0.09550.0955falsefalsefalsetruefalse6truetruetrue0.37520.3752falsefalsefalsetruefalse7falsetruefalse002009-03-022009-03-02falsefalsetruetruefalseOthernanafalsefalseMSCI World Index6falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2010-03-01T00:00:002011-02-28T00:00:00falsefalseBarclays Capital Aggregate Bond Indexdei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldidf1040587_BarclaysCapitalAggregateBondIndexMemberdei_DocumentInformationDocumentAxisexplicitMembertruefalseShare Classesrr_ProspectusShareClassAxisrr_ShareClassDomainrr_ProspectusShareClassAxisexplicitMembertruefalsePerformance Measurerr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberBarclays Capital Aggregate Bond IndexShare ClassesPerformance MeasureStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsetruefalse00Barclays Capital Aggregate Bond IndexBarclays Capital Aggregate Bond Indexfalsefalsefalsetruefalse4falsefalsefalse00(reflects no deduction for fees, expenses or taxes)(reflects no deduction for fees, expenses or taxes)falsefalsefalsetruefalse5truetruetrue0.06540.0654falsefalsefalsetruefalse6truetruetrue0.07360.0736falsefalsefalsetruefalse7falsetruefalse002009-03-022009-03-02falsefalsetruetruefalseOthernanafalsefalseBarclays Capital Aggregate Bond Index76Average Annual Total Returns - Direxion/Wilshire Dynamic Fund UnKnownUnKnownUnKnownUnKnownfalsetrueColumnprimaryElement*RowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to PerformanceTableData.No authoritative reference available.falsefalsePerformance [Table]27false0rr_PerformanceTableNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00After-tax returns are calculated using the historically highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor&#8217;s tax situation and may differ from those shown, and 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 (&#8220;IRAs&#8221;).falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringIf the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also shouldshow the returns of an appropriate broadbased securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____). For a Fund that provides annual total returns for only one calendar year or for a Fund that does not include the bar chart because it does not have annual returns for a full calendar year, modify, as appropriate, the narrative explanation required by paragraph (c)(2)(i) (e.g., by stating that the information gives some indication of the risks of an investment in the Fund by comparing the Fund's performance with a broad measure of market performance).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph iv -Subsection b falsefalsePerformance Table Narrative125Risk/Return Summary - Direxion/Wilshire Dynamic Fund (Direxion/Wilshire Dynamic Fund)UnKnownUnKnownUnKnownUnKnownfalsetrue