Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	Guggenheim Funds Trust
Prospectus Date	rr_ProspectusDate	Jan. 31, 2022
Class R6 Shares | Guggenheim Municipal Income Fund
Risk Return Abstract	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<span style="color:#000000;font-family:Arial;font-size:16.04pt;font-weight:bold;">Guggenheim Municipal Income Fund</span>
Objective [Heading]	rr_ObjectiveHeading	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">INVESTMENT OBJECTIVE</span>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Guggenheim Municipal Income Fund (the “Fund”) seeks to provide current income with an emphasis on income exempt from federal income tax, while also considering capital appreciation.
Expense [Heading]	rr_ExpenseHeading	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">FEES AND EXPENSES OF THE FUND</span>
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.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">SHAREHOLDER FEES </span><span style="color:#000000;font-family:Arial;font-size:10.02pt;"> </span><span style="color:#000000;font-family:Arial;font-size:10.02pt;font-style:italic;">(fees paid directly from your investment)</span>
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;margin-left:-9pt;">ANNUAL FUND OPERATING EXPENSES </span><span style="color:#000000;font-family:Arial;font-size:10.02pt;"> </span><span style="color:#000000;font-family:Arial;font-size:10.02pt;font-style:italic;">(expenses that you pay each year as a percentage of the value of your investment</span><span style="color:#000000;font-family:Arial;font-size:10.02pt;">)</span>
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	<span style="color:#000000;font-family:Arial;font-size:8.02pt;">February 1, 2023</span>
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">PORTFOLIO TURNOVER</span>
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 22% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	22.00%
Other Expenses, New Fund, Based on Estimates [Text]	rr_OtherExpensesNewFundBasedOnEstimates	<span style="color:#000000;font-family:Arial;font-size:8.02pt;">Other expenses are based on estimated expenses for the current fiscal year.</span>
Expense Example [Heading]	rr_ExpenseExampleHeading	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">EXAMPLE</span>
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.
Expense Example by, Year, Caption [Text]	rr_ExpenseExampleByYearCaption	<span style="color:#000000;font-family:Arial;font-size:10.02pt;"> The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although the actual costs may be higher or lower, based on these assumptions your costs (whether or not you redeem your shares at the end of the given period) would be:</span>
Expense Example Closing [Text Block]	rr_ExpenseExampleClosingTextBlock	The above Example reflects applicable contractual fee waiver/expense reimbursement arrangements for the current duration of the arrangements only.
Strategy [Heading]	rr_StrategyHeading	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">PRINCIPAL INVESTMENT STRATEGIES</span>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	In pursuit of its objective, the Fund will invest, under normal circumstances, at least 80% of its assets (net assets, plus the amount of any borrowings for investment purposes) in a diversified portfolio of municipal securities whose interest is free from federal income tax. This investment policy may not be changed without shareholder approval. Interest from the Fund’s investments may be subject to the federal alternative minimum tax. The Fund may invest up to 20% of its assets in securities the interest on which is subject to federal income taxation, including, among others, corporate bonds and other corporate debt securities, taxable municipal securities (which include Build America Bonds and Qualified School Construction Bonds), mortgage-backed and asset backed securities (including collateralized debt obligations), repurchase and reverse repurchase agreements, syndicated bank loans and securities issued by the U.S. government or its agencies and instrumentalities (including those not backed by the full faith and credit of the U.S. government). The Fund also may invest up to 20% of its assets in a variety of investment vehicles, principally closed-end funds, exchange-traded funds (“ETFs”) and other mutual funds. The Fund may use derivatives for investment purposes (i.e., speculative purposes) and/or to seek to hedge against fluctuations in interest rates or to change the effective duration of its portfolio. Derivatives include futures, forward contracts, Eurodollar futures, options, structured securities, inverse floating rate instruments, swaps, caps, floors, and collars (some of these instruments may be traded in the over-the-counter market). When market conditions are deemed appropriate, the Fund will use leverage to the full extent permitted by its investment policies and restrictions and applicable law. The Fund may use leverage by using derivatives and municipal tender option bonds (“TOBs”), or by entering into reverse repurchase agreements and borrowing transactions (principally lines of credit) for investment purposes. The fixed-income securities in which the Fund invests will primarily be domestic securities, but may also include, up to 20% of its assets, in foreign and emerging markets securities (such as sovereign debt securities and Eurodollar bonds and obligations).The Fund will allocate assets across different market sectors and maturities and may invest in municipal bonds rated in any rating category or in unrated municipal bonds. The Fund, however, will invest, under normal market conditions, at least 80% of its net assets in investment grade securities (i.e., rated in the top four long-term rating categories by a nationally recognized statistical ratings organization or, if unrated, determined by Guggenheim Partners Investment Management, LLC, also known as Guggenheim Investments (“Guggenheim Partners” or the “Sub-Adviser”) to be of comparable quality). If nationally recognized statistical rating organizations assign different ratings to the same security, the Fund will use the higher rating for purposes of determining the security’s credit quality. The Fund may invest 25% or more of the Fund’s assets in municipal instruments that finance similar projects, such as those relating to education, healthcare, housing, utilities, or water and sewers.Guggenheim Partners, the Fund’s sub-adviser, with assistance from Guggenheim Partners Advisors, LLC, as investment sub-adviser (“GPA”), selects securities and other investments for purchase and sale based on intensive credit research involving extensive due diligence on each issuer, region and sector, and also considers macroeconomic outlook and geopolitical issues.Guggenheim Partners may determine to sell an instrument for several reasons, including but not limited to the following: (1) to adjust the portfolio’s average maturity or duration, or to shift assets into or out of higher-yielding securities; (2) if a security’s credit rating has been changed, the Investment Manager's credit outlook has changed, or for other similar reasons; (3) to meet redemption requests; (4) to take gains; or (5) due to relative value. Under adverse or unstable market conditions or abnormal circumstances (for example, in the event of credit events, where it is deemed opportune to preserve gains, or to preserve the relative value of investments or in the case of large cash inflows or anticipated large redemptions), the Fund can make temporary investments and may not be able to pursue or achieve its investment objective.
Risk [Heading]	rr_RiskHeading	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">PRINCIPAL RISKS</span>
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The value of an investment in the Fund will fluctuate and is subject to investment risks, which means investors could lose money. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any governmental agency. There is no assurance that the Fund will achieve its investment objective. The principal risks of investing in the Fund are summarized below.Asset-Backed Securities Risk—Investors in asset-backed securities, including residential mortgage-backed securities, commercial mortgage-backed securities and other structured finance investments, generally receive payments that are part interest and part return of principal. These payments may vary based on the rate at which the underlying borrowers pay off their loans. Some asset-backed securities, including mortgage-backed securities, may have structures that make their performance based on changes in interest rates and other factors difficult to predict, causing their prices to be volatile. In particular, during periods of falling interest rates, asset-backed securities are more likely to be called or prepaid, which can result in the Fund having to reinvest proceeds in other investments at a lower interest rate or less advantageous terms, which would adversely affect the Fund. These instruments are particularly subject to interest rate, credit and liquidity and valuation risks. The terms of many structured finance investments and other instruments are tied to interbank reference rates (referred to collectively as the “London Interbank Offered Rate” or “LIBOR”), which function as a reference rate or benchmark for many underlying collateral investments, securities and transactions. It is anticipated that LIBOR ultimately will be discontinued, which may cause increased volatility and illiquidity in the markets for instruments with terms tied to LIBOR or other adverse consequences, such as decreased yields and reduction in value, for these instruments. These events may adversely affect the Fund and its investments in such instruments.Collateralized Loan Obligations and Collateralized Debt Obligations Risk—Collateralized loan obligations (“CLOs”) bear many of the same risks as other forms of asset-backed securities, including interest rate risk, credit risk and default risk. As they are backed by pools of loans, CLOs also bear similar risks to investing in loans directly. CLOs issue classes or “tranches” that vary in risk and yield. CLOs may experience substantial losses attributable to loan defaults. Losses caused by defaults on underlying assets are borne first by the holders of subordinate tranches. The Fund’s investment in CLOs may decrease in market value when the CLO experiences loan defaults or credit impairment, the disappearance of a subordinate tranche, or market anticipation of defaults and investor aversion to CLO securities as a class.Collateralized debt obligations (“CDOs”) are structured similarly to CLOs and bear the same risks as CLOs including interest rate risk, credit risk and default risk. CDOs are subject to additional risks because they are backed by pools of assets other than loans including securities (such as other asset-backed securities), synthetic instruments or bonds and may be highly leveraged. Like CLOs, losses incurred by a CDO are borne first by holders of subordinate tranches. Accordingly, the risks of CDOs depend largely on the type of underlying collateral and the tranche of CDOs in which the Fund invests. For example, CDOs that obtain their exposure through synthetic investments entail the risks associated with derivative instruments. The terms of many structured finance investments, including CLOs and CDOs, are tied to LIBOR, which functions as a reference rate or benchmark for many underlying collateral investments, securities and transactions. It is anticipated that LIBOR will be discontinued, which may cause increased volatility and illiquidity in the markets for instruments with terms tied to LIBOR or other adverse consequences, such as decreased yields and reduction in value, for these instruments. Some structured finance investments are tied to relatively new and developing reference rates, such as SOFR or other reference rates based on SOFR. These relatively new and developing rates may behave differently than LIBOR would have or may not match the reference rate applicable to the underlying assets related to these investments. These events may adversely affect the Fund and its investments in such instruments.Counterparty Credit Risk—The Fund makes investments in financial instruments and OTC-traded derivatives involving counterparties to gain exposure to a particular group of securities, index, asset class or other reference asset without actually purchasing those securities or investments, to hedge a position, or for other investment purposes. Through these investments and related arrangements (e.g., prime brokerage or securities lending arrangements or derivatives transactions), the Fund is exposed to credit risks that the counterparty may be unwilling or unable to make timely payments or otherwise to meet its contractual obligations. If the counterparty becomes bankrupt or defaults on (or otherwise becomes unable or unwilling to perform) its payment or other obligations to the Fund, the Fund may not receive the full amount that it is entitled to receive or may experience delays in recovering the collateral or other assets held by, or on behalf of, the counterparty. If this occurs, the value of your shares in the Fund will decrease.Credit Risk—The Fund could lose money if the issuer or guarantor of a fixed-income or other debt instrument or a counterparty to a derivatives transaction or other transaction is unable or unwilling, or perceived to be unable or unwilling, to pay interest or repay principal on time, defaults or otherwise fails to meet its obligations. Actual or perceived changes in economic, social, public health, financial or political conditions in general or that affect a particular type of instrument, issuer, guarantor or counterparty can reduce the ability of the party to meet its obligations, which can affect the credit quality, liquidity and/or value of an instrument. The value of an instrument also may decline for reasons that relate directly to the issuer, guarantor or counterparty, such as management performance, financial leverage and reduced demand for goods and services. The issuer, guarantor or counterparty could also suffer a rapid decline in credit rating, which would adversely affect the volatility of the value and liquidity of the instrument. Credit ratings may not be an accurate assessment of liquidity or credit risk.Derivatives Risk—Derivatives may pose risks in addition to and greater than those associated with investing directly in securities, currencies or other investments, including risks relating to leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, high price volatility, lack of availability, counterparty credit, liquidity, valuation and legal restrictions. Their use is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. If the portfolio managers are incorrect about their expectations of market conditions, the use of derivatives could also result in a loss, which in some cases may be unlimited. In addition, the Fund’s use of derivatives may cause the Fund to realize higher amounts of short term capital gains (generally taxed at ordinary income tax rates) than if the Fund had not used such instruments. Some of the derivatives in which the Fund invests may be traded (and privately negotiated) in the OTC market. OTC derivatives are subject to heightened counterparty credit, liquidity and valuation risks.Emerging Markets Risk—Investments in or exposure to emerging markets are generally subject to a greater level of those risks associated with investing in or being exposed to developed foreign markets, as emerging markets are considered to be less developed. Furthermore, investments in or exposure to emerging markets are generally subject to additional risks, including the risks associated with trading in smaller markets, lower volumes of trading, and being subject to lower levels of government regulation and less extensive and transparent accounting, auditing, recordkeeping, financial reporting and other requirements.Extension Risk—Certain debt instruments, including mortgage- and other asset-backed securities, are subject to the risk that payments on principal may occur at a slower rate or later than expected. In this event, the expected maturity could lengthen and the Fund’s investment may sharply decrease in value and the Fund’s income from the investment may quickly decline. These types of instruments are particularly subject to extension risk, and offer less potential for gains, during periods of rising interest rates. In addition, the Fund may be delayed in its ability to reinvest income or proceeds from these instruments in potentially higher yielding investments, which would adversely affect the Fund.Foreign Securities and Currency Risk—Foreign securities carry unique or additional risks when compared to U.S. securities, including currency fluctuations, adverse political (including geopolitical) and economic developments, unreliable or untimely information, less liquidity and more volatility, limited legal recourse and higher transactional costs.High Yield and Unrated Securities Risk—High yield, below investment grade and unrated high risk debt securities (which also may be known as “junk bonds”) may present additional risks because these securities may be less liquid, and therefore more difficult to value accurately and sell at an advantageous price or time, and present more credit risk than investment grade bonds. The price of high yield securities tends to be subject to greater volatility due to issuer-specific factors, such as operating results and outlook and to real or perceived adverse economic and competitive industry conditions. This exposure may be obtained through investments in other investment companies. Based on its investment strategies, a significant portion of the Fund’s investments can be comprised of high yield and unrated securities and thus particularly prone to the foregoing risks, which may result in losses to the Fund.Interest Rate Risk—Fixed-income and other debt instruments are subject to the possibility that interest rates could change. Changes in interest rates may adversely affect the Fund’s investments in these instruments, such as the value or liquidity of, and income generated by, the investments. Interest rates may change as a result of a variety of factors, and the change may be sudden and significant, with unpredictable impacts on the financial markets and the Fund’s investments. Fixed-income and other debt instruments with longer durations are more sensitive to changes in interest rates and, thus, subject to more volatility than similar instruments with shorter durations. Generally, when interest rates increase, the values of fixed-income and other debt instruments decline and when interest rates decrease, the values of fixed-income and other debt instruments rise. During periods of rising interest rates, as is the case currently, because changes in interest rates on adjustable rate securities may lag behind changes in market rates, the value of such securities may decline until their interest rates reset to market rates. During periods of declining interest rates, because the interest rates on adjustable rate securities generally reset downward, their market value is unlikely to rise to the same extent as the value of comparable fixed rate securities. During periods when interest rates are low or negative, the Fund’s yield and performance may be adversely affected and the Fund may be unable to maintain positive returns or minimize the volatility of the Fund's net asset value per share. The risks associated with rising interest rates are heightened given the current interest rate environment.Investment in Investment Vehicles Risk—Investing in other investment vehicles, including ETFs, closed-end funds and other mutual funds, subjects the Fund to those risks affecting the investment vehicle, including the possibility that the value of the underlying securities held by the investment vehicle could decrease or the portfolio becomes illiquid. Moreover, the Fund and its shareholders will incur its pro rata share of the underlying vehicles’ expenses, which will reduce the Fund’s performance. In addition, investments in an ETF are subject to, among other risks, the risk that the ETF’s shares may trade at a discount or premium relative to the net asset value of the shares and the listing exchange may halt trading of the ETF’s shares.Investment in Loans Risk—The Fund may invest in loans directly or indirectly through assignments or participations. Investments in loans, including loan syndicates and other direct lending opportunities, involve special types of risks, including credit risk, interest rate risk, counterparty risk, prepayment risk and extension risk. Loans may offer a fixed or floating interest rate. Loans are often below investment grade and may be unrated. The Fund’s investments in loans can also be difficult to value accurately and may be more susceptible to liquidity risk than fixed-income instruments of similar credit quality and/or maturity. The Fund is also subject to the risk that the value of any collateral for the loan may be insufficient or unavailable to cover the borrower’s obligations should the borrower fail to make payments, become insolvent, or otherwise default. Transactions in loans are often subject to long settlement periods and often require consent from borrowers and/or an agent acting for the lenders, thus potentially limiting the ability of the Fund to invest sale proceeds in other investments and to use proceeds to meet its current redemption obligations. The Fund thus is subject to the risk of selling other investments at disadvantageous times or prices or taking other actions necessary to raise cash to meet its redemption obligations. Participations in loans may subject the Fund to the credit risk of both the borrower and the seller of the participation and may make enforcement of loan covenants, if any, more difficult for the Fund as legal action may have to go through the seller of the participation (or an agent acting on its behalf). Covenants contained in loan documentation are intended to protect lenders and investors by imposing certain restrictions and other limitations on a borrower’s operations or assets and by providing certain information and consent rights to lenders.Leverage Risk—The Fund’s use of leverage, through borrowings or instruments such as derivatives and reverse repurchase agreements, may cause the Fund to be more volatile and riskier than if it had not been leveraged.Liquidity and Valuation Risk—It may be difficult for the Fund to purchase and sell particular investments within a reasonable time at a fair price, or the price at which it has been valued by the Investment Manager for purposes of the Fund’s net asset value, causing the Fund to be less liquid and unable to realize what the Investment Manager believes should be the price of the investment. Valuation of portfolio investments may be difficult, such as during periods of market turmoil or reduced liquidity, and for investments that may, for example, trade infrequently or irregularly. In these and other circumstances, an investment may be valued using fair value methodologies, which are inherently subjective, reflect good faith judgments based on available information and may not accurately estimate the price at which the Fund could sell the investment at that time. These risks are heightened for fixed-income and other debt instruments because of the current low interest rate environment. Based on its investment strategies, a significant portion of the Fund's investments can be difficult to value and potentially less liquid and thus particularly prone to the foregoing risks.Management Risk—The Fund is actively managed, which means that investment decisions are made based on investment views. There is no guarantee that the investment views will produce the desired results or expected returns, causing the Fund to lose value or fail to meet its investment objective or underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active and frequent trading that can accompany active management, also called “high turnover,” may have a negative impact on performance. Active and frequent trading may result in higher brokerage costs or mark-up charges and tax costs, which are ultimately passed on to shareholders of the Fund. Active and frequent trading may also result in adverse tax consequences.Market Risk—The value of, or income generated by, the investments held by the Fund may fluctuate rapidly and unpredictably. These fluctuations may be frequent and significant. In addition, the Fund may incur losses as a result of various market and economic factors, such as those affecting individual companies or issuers or particular industries. In addition, developments related to economic, political (including geopolitical), social, public health, market or other conditions may cause volatility in financial markets and reduced liquidity in equity, credit and/or debt markets, which could adversely impact the Fund and its investments and their value and performance. Under such conditions, the Fund may experience significant redemption activity by shareholders and could be forced to sell portfolio securities or other assets at unfavorable prices in an effort to generate sufficient cash to pay redeeming shareholders. The Fund's investments may perform poorly or underperform the general securities markets or other types of securities. Governmental authorities and regulators have enacted in recent years significant fiscal and monetary policy changes designed to support financial markets, which present heightened risks to markets and Fund investments and resulted in high inflation, low interest rates, and in some cases, negative yields. Risks are now heightened as these actions are starting to be discontinued or reversed, and could be further heightened if they are ineffective in achieving their desired outcomes. It is unknown how long current circumstances will persist, whether they will reoccur in the future and whether these efforts to support the economy and financial markets will be successful. These actions can also contribute to a risk that asset prices have a high degree of correlation across markets and asset classes. In addition, many markets reached historical highs during recent periods and could be approaching the end of an economic expansion cycle.Municipal Securities Risk—Municipal securities are subject to a variety of risks, including credit, interest, prepayment, liquidity, and valuation risks. In addition, municipal securities can be adversely affected by (i) unfavorable legislative, political or other developments or events, including natural disasters and public health conditions, and (ii) changes in the economic and fiscal conditions of issuers of municipal securities or the federal government (in cases where it provides financial support to such issuers). Municipal securities may be fully or partially backed by the taxing authority or revenue of a local government, the credit of a private issuer, or the current or anticipated revenues from a specific project, which may be adversely affected as a result of economic and public health conditions. To the extent the Fund invests a substantial portion of its assets in municipal securities issued by issuers in a particular state, municipality or project, the Fund will be particularly sensitive to developments and events adversely affecting such state or municipality or with respect to a particular project. For example, the Fund invests a substantial amount of its assets in municipal securities of issuers located in California. As a result, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of California issuers to pay interest or repay principal. From time to time, the Fund may invest a substantial amount of its assets in securities issued by issuers located in other states or municipalities. Certain sectors of the municipal bond market have special risks that can affect them more significantly than the market as a whole. Because many municipal instruments are issued to finance similar projects (such as education, health care, transportation and utilities), conditions in these industries can significantly affect the overall municipal market. Municipal securities that are insured may be adversely affected by developments relevant to that particular insurer, or more general developments relevant to the market as a whole. Municipal securities can be difficult to value and be less liquid than other investments, which may affect performance or the ability to meet Fund redemption requests.Prepayment Risk—Certain debt instruments, including loans and mortgage- and other asset-backed securities, are subject to the risk that payments on principal may occur more quickly or earlier than expected. If this occurs, the Fund might be forced to forego future interest income on the principal repaid early and to reinvest income or proceeds at generally lower interest rates, thus reducing the Fund’s yield. These types of instruments are particularly subject to prepayment risk, and offer less potential for gains, during periods of declining interest rates.Regulatory and Legal Risk—U.S. and non-U.S. governmental agencies and other regulators regularly implement additional regulations and legislators pass new laws that affect the investments held by the Fund, the strategies used by the Fund or the level of regulation or taxation applying to the Fund (such as regulations related to investments in derivatives and other transactions). These regulations and laws impact the investment strategies, performance, costs and operations of the Fund or taxation of shareholders.Repurchase Agreements and Reverse Repurchase Agreements Risk—In the event of the insolvency of the counterparty to a repurchase agreement or reverse repurchase agreement, recovery of the repurchase price owed to the Fund or, in the case of a reverse repurchase agreement, the securities or other assets sold by the Fund, may be delayed. Because reverse repurchase agreements may be considered to be the practical equivalent of borrowing funds, they constitute a form of leverage. If the Fund reinvests the proceeds of a reverse repurchase agreement at a rate lower than the cost of the agreement, entering into the agreement will lower the Fund’s yield.Restricted Securities Risk—Restricted securities generally cannot be sold to the public and may involve a high degree of business, financial and liquidity risk, which may result in substantial losses to the Fund.Sovereign Debt Risk—The debt securities issued by sovereign entities may decline as a result of default or other adverse credit event resulting from a sovereign debtor's unwillingness or inability to repay principal and pay interest in a timely manner, which may be affected by a variety of factors, including its cash flow situation, the extent of its reserves, the availability of sufficient foreign exchange on the date a payment is due, the relative size of the debt service burden to the economy as a whole, the sovereign debtor's policy toward international lenders, and the political constraints to which a sovereign debtor may be subject. Sovereign debt risk is increased for emerging market issuers.Tender Option Bonds Risk—Tender option bonds, residual interest tender option bonds and inverse floaters expose the Fund to the same risks as investments in derivatives, as well as risks associated with leverage, especially the risk of increased volatility. An investment in these securities typically will involve greater risk than an investment in a municipal fixed rate security, including the risk of loss of principal. Because distributions on these securities will bear an inverse relationship to short-term municipal security interest rates, distributions will be reduced or, in the extreme, eliminated as rates rise and will increase when rates fall.U.S. Government Securities Risk—U.S. government securities may or may not be backed by the full faith and credit of the U.S. government. U.S. government securities are subject to the risks associated with fixed-income and debt securities, particularly interest rate risk and credit risk.
Risk Lose Money [Text]	rr_RiskLoseMoney	<span style="color:#000000;font-family:Arial;font-size:10.02pt;margin-left:0%;">The value of an investment in the Fund will fluctuate and is subject to investment risks, which means investors could </span><span style="color:#000000;font-family:Arial;font-size:10.02pt;">lose money.</span>
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;"> An investment in the Fund is not a bank deposit and is not insured or guaranteed by the FDIC or any governmental agency</span><span style="color:#000000;font-family:Arial;font-size:10.02pt;">.</span>
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">PERFORMANCE INFORMATION</span>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following chart and table provide some indication of the risks of investing in the Fund. Because Class R6 shares had not commenced operations as of the date of this Prospectus, the following chart and table show the Fund’s Institutional Class share calendar year performance from year to year and average annual returns for the one, five and ten year or since inception periods (if shorter), as applicable, for the Fund's Institutional Class shares compared to those of a broad measure of market performance. Class R6 shares and Institutional Class shares of the Fund would have substantially similar performance because they invest in the same portfolio of securities. However, the performance of Class R6 shares would be higher than Institutional Class shares to the extent Class R6 shares pay lower expenses than Institutional Class shares. As with all mutual funds, past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available on the Fund’s website at www.guggenheiminvestments.com or by calling 800.820.0888.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	<span style="color:#000000;font-family:Arial;font-size:10.02pt;margin-left:0%;">The following chart and table provide some indication of the risks of investing in the Fund. Because Class R6 shares </span><span style="color:#000000;font-family:Arial;font-size:10.02pt;">had not commenced operations as of the date of this Prospectus, the following chart and table show the Fund’s Institutional Class share calendar year performance from year to year and average annual returns for the one, five and ten year or since inception periods (if shorter), as applicable, for the Fund's Institutional Class shares compared to those of a broad measure of market performance.</span>
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	<span style="color:#000000;font-family:Arial;font-size:10.02pt;">800.820.0888</span>
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	<span style="color:#000000;font-family:Arial;font-size:10.02pt;">www.guggenheiminvestments.com</span>
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	<span style="color:#000000;font-family:Arial;font-size:10.02pt;">As with all mutual funds, past performance (before and after taxes) is </span><span style="color:#000000;font-family:Arial;font-size:10.02pt;">not necessarily an indication of how the Fund will perform in the future.</span>
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Period EndingReturnHighest QuarterSeptember 30, 20124.29%Lowest QuarterJune 30, 2013-5.44%
Performance Table Heading	rr_PerformanceTableHeading	<span style="color:#000000;font-family:Arial;font-size:10.02pt;font-weight:bold;">AVERAGE ANNUAL TOTAL RETURNS (for the periods ended December 31, 2021)</span>
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	<span style="color:#000000;font-family:Arial;font-size:10.02pt;margin-left:0%;">After-tax returns shown in the table are calculated using the historical highest individual federal marginal income tax </span><span style="color:#000000;font-family:Arial;font-size:10.02pt;">rates and do not reflect the impact of any state or local taxes.</span>
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	<span style="color:#000000;font-family:Arial;font-size:10.02pt;"> Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”).</span>
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns shown in the table are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of any state or local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts (“IRAs”).
Class R6 Shares | Guggenheim Municipal Income Fund | Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_ExpenseExampleYear01	$ 75
3 Years	rr_ExpenseExampleYear03	322
5 Years	rr_ExpenseExampleYear05	588
10 Years	rr_ExpenseExampleYear10	$ 1,349
2013	rr_AnnualReturn2013	(5.25%)
2014	rr_AnnualReturn2014	12.75%
2015	rr_AnnualReturn2015	2.81%
2016	rr_AnnualReturn2016	(0.40%)
2017	rr_AnnualReturn2017	6.02%
2018	rr_AnnualReturn2018	1.08%
2019	rr_AnnualReturn2019	7.09%
2020	rr_AnnualReturn2020	5.45%
2021	rr_AnnualReturn2021	2.07%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	<span style="color:#000000;font-family:Arial;font-size:10.02pt;">Highest Quarter</span>
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2012
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	4.29%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	<span style="color:#000000;font-family:Arial;font-size:10.02pt;">Lowest Quarter</span>
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Jun. 30, 2013
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(5.44%)
1 Year	rr_AverageAnnualReturnYear01	2.07%
5 Years	rr_AverageAnnualReturnYear05	4.31%
Since Inception	rr_AverageAnnualReturnSinceInception	3.95%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 13, 2012
Class R6 Shares | Guggenheim Municipal Income Fund | Class R6
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is lower)	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.50%
Distribution and/or Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component1 Other Expenses	rr_Component1OtherExpensesOverAssets	0.01%
Component2 Other Expenses	rr_Component2OtherExpensesOverAssets	0.45%
Other Expenses	rr_OtherExpensesOverAssets	0.46%	[1]
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.18%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.14%
Fee Waiver (and/or expense reimbursement)	rr_FeeWaiverOrReimbursementOverAssets	(0.41%)	[2]
Total Annual Fund Operating Expenses After Fee Waiver (and/or expense reimbursement)	rr_NetExpensesOverAssets	0.73%
Class R6 Shares | Guggenheim Municipal Income Fund | Return After Taxes on Distributions | Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	1.17%
5 Years	rr_AverageAnnualReturnYear05	3.27%
Since Inception	rr_AverageAnnualReturnSinceInception	2.81%
Class R6 Shares | Guggenheim Municipal Income Fund | Return After Taxes on Distributions and Sale of Fund Shares | Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	1.29%
5 Years	rr_AverageAnnualReturnYear05	2.88%
Since Inception	rr_AverageAnnualReturnSinceInception	2.55%
Class R6 Shares | Guggenheim Municipal Income Fund | Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	1.52%
5 Years	rr_AverageAnnualReturnYear05	4.17%
Since Inception	rr_AverageAnnualReturnSinceInception	3.57%

[1] Other expenses are based on estimated expenses for the current fiscal year.

[2] Security Investors, LLC, also known as Guggenheim Investments (the “Investment Manager”), has contractually agreed through February 1, 2023 to waive fees and/or reimburse expenses to the extent necessary to limit the ordinary operating expenses (including distribution (12b-1) fees (if any), but exclusive of brokerage costs, dividends on securities sold short, acquired fund fees and expenses, interest, taxes, litigation, indemnification, and extraordinary expenses) (“Operating Expenses”) of the Fund to the annual percentage of average daily net assets for Class R6 shares to 0.55%. The Investment Manager is entitled to reimbursement by the Fund of fees waived or expenses reimbursed during any of the previous 36 months beginning on the date of the expense limitation agreement, provided that the Operating Expenses do not exceed the then-applicable expense cap. The agreement will expire when it reaches its termination or when the Investment Manager ceases to serve as such and it can be terminated by the Fund’s Board of Trustees, with certain waived fees and reimbursed expenses subject to the recoupment rights of the Investment Manager.