Label	Element	Value
Risk Return [Abstract]	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Aug. 01, 2012
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund
Risk Return [Abstract]	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Long Short Interest Rate Strategy Fund
Objective [Heading]	rr_ObjectiveHeading	INVESTMENT OBJECTIVE
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Long Short Interest Rate Strategy Fund (the "Fund") seeks to maximize total return by taking advantage of price movements in the U.S. Treasury bond market.
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 and hold A-Class Shares, C-Class Shares or Institutional Class Shares 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 $100,000 in certain funds in the Guggenheim Investments family of funds. More information about these and other discounts is available from your financial professional and under the "Sales Charges" section on page 297 of this Prospectus and in the "A-Class Shares - Initial Sales Charges, Reductions, and Waivers" section beginning on page 108 of the Fund's Statement of Additional Information (the "SAI").
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 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 Total 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 0% of the average value of its portfolio. However, the Fund's portfolio turnover rate is calculated without regard to cash instruments or derivatives. If such instruments were included, the Fund's portfolio turnover rate might be significantly higher.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	0.00%
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in certain funds in the Guggenheim Investments family of funds.
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	100,000
Expense Example [Heading]	rr_ExpenseExampleHeading	EXAMPLE
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, No Redemption, By Year, Caption [Text]	rr_ExpenseExampleNoRedemptionByYearCaption	You would pay the following expenses if you did not redeem your shares:
Strategy [Heading]	rr_StrategyHeading	PRINCIPAL INVESTMENT STRATEGIES
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund seeks to achieve its investment objective by investing in accordance with a highly quantitative investment model that is designed to identify a short-term interest rate outlook expressed in terms of exposure to the U.S. Treasury bond market. It is expected that the model will enable the Fund to potentially benefit from interest rate trends while also enabling it to take advantage of short-term deviations in such trends. In executing this strategy, the Fund's Sub-Advisor manages the investment model to determine an interest rate outlook. The model evaluates and ranks factors in 3 primary categories: (1) economic outlook based on various macro-economic factors; (2) inflationary expectations based on such factors as precious metals, commodities and other price movements; and (3) investor psychology as demonstrated by the level of market reaction not explained by the economic outlook and inflationary expectations. The interest rate outlook generated by the model determines the portfolio's target duration ranging from fully bullish, with a target duration of approximately 11 years, to fully bearish, with a target duration of approximately negative 11 years. If the outlook is indeterminate, the Advisor will target a neutral portfolio duration of approximately 5.5 years. A neutral portfolio seeks to generate a return that is representative of the return of the overall Treasury market. Intermediate levels also may be established based on the interest rate outlook. The Sub-Advisor sends the model's signals to the Advisor and the Advisor reviews the rate outlook determined by the model monthly to both manage risk and to seek to take advantage of short-term deviations in the general business cycle trend in interest rates. On a day-to-day basis, the Fund invests substantially all of its net assets in cash, U.S. Treasury Bills, Notes, and Bonds as well as futures linked to those instruments, and exchange-traded funds ("ETFs"). The Fund also may invest in options, futures and swap agreements to hedge the Fund's exposure to U.S. Treasury securities and for non-hedging purposes, such as to manage the effective duration of the portfolio or as a substitute for direct investment. By focusing primarily on U.S. Treasury securities and Treasury-related futures and ETFs, the strategy minimizes or eliminates the risks (prepayment, currency, liquidity, etc.) inherent in many other fixed income management approaches. While the Fund anticipates investing in these instruments to seek to achieve its investment objective, the extent of the Fund's investment in these instruments may vary from day to day depending on a number of different factors, including price, availability, and general market conditions. The Fund's use of derivatives and the leveraged investment exposure created by such use may be significant at times. In an effort to ensure that the Fund is fully invested on a day-to-day basis, the Fund may conduct any necessary trading activity at or just prior to the close of the U.S. financial markets. The Fund also may enter into repurchase agreements with counterparties that are deemed to present acceptable credit risks. The Fund also may engage in frequent and active trading or portfolio investments to achieve its investment objective.
Risk [Heading]	rr_RiskHeading	PRINCIPAL RISKS
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	As with all mutual funds, a shareholder is subject to the risk that his or her investment could lose money. In addition to this risk, the Fund is subject to a number of additional risks that may affect the value of its shares, including: Counterparty Credit Risk - The Fund may invest in financial instruments involving counterparties that attempt to gain exposure to a particular group of securities, index or asset class without actually purchasing those securities or investments, or to hedge a position. The Fund's use of such financial instruments, including swap agreements and structured notes, involves risks that are different from those associated with ordinary portfolio securities transactions. For example, if a swap agreement counterparty defaults on its payment obligations to the Fund, this default will cause the value of your investment in the Fund to decrease. Swap agreements and structured notes also may be considered to be illiquid. Similarly, if the credit quality of an issuer or guarantor of a debt instrument improves, this change may adversely affect the value of the Fund's investment. Derivatives Risk - The Fund's investments in derivatives may pose risks in addition to those associated with investing directly in securities or other investments, including illiquidity of the derivatives, imperfect correlations with underlying investments or the Fund's other portfolio holdings, lack of availability and counterparty risk. When used to generate leveraged exposure, the Fund's investments in derivatives may expose the Fund to potentially dramatic losses (or gains) in the value of the derivative instruments. The Fund could lose more than the principal amount invested. Early Closing Risk - The Fund is subject to the risk that unanticipated early closings of securities exchanges and other financial markets may result in the Fund's inability to buy or sell securities or other financial instruments on that day and may cause the Fund to incur substantial trading losses. Fixed Income Risk - The Fund's investments in fixed income securities will change in value in response to interest rate changes and other factors, such as the perception of the issuer's creditworthiness. For example, the value of fixed income securities will generally decrease when interest rates rise, which may cause the value of the Fund to decrease. In addition, the Fund's investments in fixed income securities with longer maturities will fluctuate more in response to interest rate changes. Investment in Investment Companies Risk - Investing in other investment companies, including ETFs, subjects the Fund to those risks affecting the investment company, including the possibility that the value of the underlying securities held by the investment company could decrease. Moreover, the Fund will incur its pro rata share of the expenses of the underlying investment companies' expenses. Investment Technique Risk - Some investment techniques of the Fund may be considered aggressive. Risks associated with the use of futures contracts, options, structured notes, and swap agreements include potentially dramatic price changes (losses) in the value of the instruments and imperfect correlations between the price of the contract and the underlying security or index. These instruments may increase the volatility of the Fund and may involve a small investment of cash relative to the magnitude of the risk assumed. Market Risk - The Fund's investments in securities and derivatives, in general, are subject to market risks that may cause their prices, and therefore the Fund's value, to fluctuate over time. An investment in the Fund may lose money. Portfolio Turnover Risk - The Fund's strategy may frequently involve buying and selling portfolio securities to rebalance the Fund's exposure to various market sectors. Higher portfolio turnover may result in the Fund paying higher levels of transaction costs and generating greater tax liabilities for shareholders. Portfolio turnover risk may cause the Fund's performance to be less than you expect. Repurchase Agreement Risk - The Fund's investment in repurchase agreements may be subject to market and credit risk with respect to the collateral securing the repurchase agreements. Investments in repurchase agreements also may be subject to the risk that the market value of the underlying obligations may decline prior to the expiration of the repurchase agreement term. Trading Halt Risk - If a trading halt occurs, the Fund may temporarily be unable to purchase or sell securities, options or futures contracts. Such a trading halt near the time the Fund prices its shares may limit the Fund's ability to use leverage and may prevent the Fund from achieving its investment objective.
Risk Lose Money [Text]	rr_RiskLoseMoney	As with all mutual funds, a shareholder is subject to the risk that his or her investment could lose money.
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	PERFORMANCE INFORMATION
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart below shows the performance of the C-Class Shares of the Fund from year to year. The table below shows the average annual total returns of the A-Class, C-Class Shares, and Institutional Class Shares of the Fund over different periods of time in comparison to the performance of a broad-based market index. The variability of performance over time provides an indication of the risks of investing in the Fund. The figures in the bar chart and table assume the reinvestment of dividends and capital gains distributions. Of course, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. Updated performance information is available on the Fund's website at www.rydex-sgi.com or by calling Guggenheim Investments Client Services at 800-820-0888.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The variability of performance over time provides an indication of the risks of investing in the Fund.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	800-820-0888
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.rydex-sgi.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.
Bar Chart Narrative [Text Block]	rr_BarChartNarrativeTextBlock	The performance information shown below for C-Class Shares is based on a calendar year. The year-to-date return for the period from January 1, 2012 through June 30, 2012 is -2.79%.
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Highest Quarter Return                         Lowest Quarter Return (quarter ended 12/31/2011) -0.60%   (quarter ended 3/31/2011) -3.91%
Index No Deduction for Fees, Expenses, Taxes [Text]	rr_IndexNoDeductionForFeesExpensesTaxes	reflects no deduction for fees, expenses or taxes
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The after-tax returns presented in the table below are calculated using highest historical 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	Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Caption	rr_AverageAnnualReturnCaption	AVERAGE ANNUAL TOTAL RETURN (for periods ended December 31, 2011)
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund | Barclays U.S. Aggregate Government Treasury Index
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Barclays U.S. Aggregate Government Treasury Index (reflects no deduction for fees, expenses or taxes)
1 Year	rr_AverageAnnualReturnYear01	9.82%
Since Inception	rr_AverageAnnualReturnSinceInception	6.43%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2010
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund | A-Class
Risk Return [Abstract]	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	4.75%
Maximum Deferred Sales Charge (Load) (as a percentage of initial purchase price or current market value, whichever is less)	rr_MaximumDeferredSalesChargeOverOfferingPrice	none
Management Fees	rr_ManagementFeesOverAssets	0.75%
Distribution and/or Shareholder Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.51%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.51%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	621
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	930
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,260
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	2,191
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	(13.33%)
Since Inception	rr_AverageAnnualReturnSinceInception	(6.19%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2010
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund | A-Class | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	(13.33%)
Since Inception	rr_AverageAnnualReturnSinceInception	(6.33%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2010
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund | A-Class | After Taxes on Distributions and Sales
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	(8.67%)
Since Inception	rr_AverageAnnualReturnSinceInception	(5.28%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2010
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund | C-Class
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 initial purchase price or current market value, whichever is less)	rr_MaximumDeferredSalesChargeOverOfferingPrice	1.00%
Management Fees	rr_ManagementFeesOverAssets	0.75%
Distribution and/or Shareholder Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	1.00%
Other Expenses	rr_OtherExpensesOverAssets	0.51%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	2.26%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	329
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	706
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	1,210
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	2,595
Expense Example, No Redemption, 1 Year	rr_ExpenseExampleNoRedemptionYear01	229
Expense Example, No Redemption, 3 Years	rr_ExpenseExampleNoRedemptionYear03	706
Expense Example, No Redemption, 5 Years	rr_ExpenseExampleNoRedemptionYear05	1,210
Expense Example, No Redemption, 10 Years	rr_ExpenseExampleNoRedemptionYear10	2,595
Annual Return 2011	rr_AnnualReturn2011	(9.71%)
Year to Date Return, Label	rr_YearToDateReturnLabel	The year-to-date return for the period
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2012
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	(2.79%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest Quarter Return
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2011
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	(0.60%)
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest Quarter Return
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2011
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(3.91%)
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	(10.62%)
Since Inception	rr_AverageAnnualReturnSinceInception	(3.83%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2010
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund | C-Class | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	(10.62%)
Since Inception	rr_AverageAnnualReturnSinceInception	(3.98%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2010
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund | C-Class | After Taxes on Distributions and Sales
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	(6.90%)
Since Inception	rr_AverageAnnualReturnSinceInception	(3.29%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2010
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund | Institutional Class
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 initial purchase price or current market value, whichever is less)	rr_MaximumDeferredSalesChargeOverOfferingPrice	none
Management Fees	rr_ManagementFeesOverAssets	0.75%
Distribution and/or Shareholder Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.50%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.25%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	127
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	397
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	686
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	1,511
Label	rr_AverageAnnualReturnLabel	Return Before Taxes
1 Year	rr_AverageAnnualReturnYear01	(8.82%)
Since Inception	rr_AverageAnnualReturnSinceInception	(2.87%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2010
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund | Institutional Class | After Taxes on Distributions
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	(8.82%)
Since Inception	rr_AverageAnnualReturnSinceInception	(3.02%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2010
Long Short Interest Rate Strategy Fund (Second Prospectus Summary) | Long Short Interest Rate Strategy Fund | Institutional Class | After Taxes on Distributions and Sales
Risk Return [Abstract]	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Return After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	(5.73%)
Since Inception	rr_AverageAnnualReturnSinceInception	(2.48%)
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2010