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Risk Return [Abstract] rr_RiskReturnAbstract  
ProspectusDate rr_ProspectusDate Aug. 01, 2012
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies Fund
 
Risk Return [Abstract] rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Event Driven and Distressed Strategies Fund
Objective [Heading] rr_ObjectiveHeading INVESTMENT OBJECTIVE
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Event Driven and Distressed Strategies Fund (the "Fund") seeks to achieve
capital growth.
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 513% of the average value of its portfolio. 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 513.00%
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
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees The Total Annual Fund Operating Expenses in this fee table (before and after any fee waivers and/or expense reimbursement) may not correlate to the expense ratios in the Fund's financial highlights and financial statements because the financial highlights and financial statements reflect only the operating expenses of the Fund and do not include Acquired Fund Fees and Expenses, which are fees and expenses incurred indirectly by the Fund through its investments in certain underlying investment companies.
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 (including one year of capped expenses each period)
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's investment methodology is based on a systematic algorithm developed
through extensive quantitative research that is designed to select and weight a
basket of six liquid, investable factors: small cap and distressed equities,
high yield (or "junk") bonds and credit, merger arbitrage and an illiquidity
premium. In combination, these six factors seek to target return characteristics
similar to those of the universe of event driven hedge funds. Event driven hedge
funds seek to profit from potential mispricings of the securities and the
pricing spreads created by the risks related to a specific corporate transaction
or market event. Such events can include: mergers, bankruptcies, financial or
operational stress, restructurings, asset sales, recapitalizations, spin-offs,
litigation, regulatory and legislative changes as well as other types of
corporate events. Small cap equities, high yield bonds, and the equities of
distressed companies combined with credit derivatives are a proxy for the
primary instruments and exposures traded by distressed and opportunistic credit
funds. A merger arbitrage index offers exposure to a liquid, diversified and
broadly representative set of arbitrage positions on announced American and
Western European merger and acquisition deals. The illiquidity factor seeks to
represent the risk premium that may be achieved by holding illiquid securities.
The factors and weights of those factors identified by the algorithm may change
over time and may be long or short at any given time.

The Fund primarily seeks to obtain these exposures through swap agreements, but
it also may invest in a combination of: domestic and foreign common stock;
American Depositary Receipts ("ADRs"); credit or equity-linked instruments,
primarily consisting of structured notes and exchange-traded notes ("ETNs");
exchange-traded funds ("ETFs"); other pooled investment vehicles; and other
derivatives, primarily consisting of futures, options, and options on futures.
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.

Certain of the Fund's derivative investments may be traded in the
over-the-counter ("OTC") market. From time to time, the Fund also may enter into
short sales and invest in short positions of certain of its portfolio
investments. The Fund may invest in derivatives to hedge or gain leveraged
exposure to the components of a particular investable factor. On a day-to-day
basis, the Fund may hold U.S. government securities, short-term, high quality
(rated AA or higher) fixed income securities, money market instruments,
overnight and fixed-term repurchase agreements, cash, and other cash equivalents
with maturities of one year or less to collateralize its derivative positions.
The Fund also may enter into repurchase agreements with counterparties that are
deemed to present acceptable credit risks.

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 engage in frequent and
active trading or portfolio investments to achieve its investment objective. The
Fund is non-diversified and, therefore, may invest a greater percentage of its
assets in a particular issuer in comparison to a diversified fund.
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.

Credit and Equity-Linked Derivative Investment Risk - The value of the Fund's
investment in these securities will rise or fall in response to changes in the
underlying security or related benchmark or investment. These securities expose
the Fund economically to movements in the prices of the underlying credit or
equity security.

Depositary Receipt Risk - The Fund may hold the securities of non-U.S. companies
in the form of ADRs. The underlying securities of the ADRs in the Fund's
portfolio are subject to fluctuations in foreign currency exchange rates that
may affect the value of the Fund's portfolio. In addition, the value of the
securities underlying the ADRs may change materially when the U.S. markets are
not open for trading. Investments in the underlying foreign securities also
involve political and economic risks distinct from those associated with
investing in the securities of U.S. issuers.

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.

Exchange-Traded Notes Risk - The value of an ETN may be influenced by time to
maturity, level of supply and demand for the ETN, volatility and lack of
liquidity in underlying commodities or securities markets, changes in the
applicable interest rates, changes in the issuer's credit rating and economic,
legal, political or geographic events that affect the referenced commodity or
security. The Fund's decision to sell its ETN holdings may also be limited by
the availability of a secondary market. If the Fund must sell some or all of its
ETN holdings and the secondary market is weak, it may have to sell such holdings
at a discount. ETNs also are subject to counterparty credit risk and fixed
income risk.

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.

Foreign Issuer Exposure Risk - The Fund may invest in securities of foreign
companies directly or in financial instruments that are indirectly linked to the
performance of foreign issuers. Foreign securities markets generally have less
trading volume and less liquidity than U.S. markets, and prices in some foreign
markets may fluctuate more than those of securities traded on U.S. markets.

High Yield Risk - The Fund may invest in high yield securities and unrated
securities of similar credit quality (commonly known as "junk bonds"), which may
be subject to greater levels of interest rate, credit and liquidity risk than
funds that do not invest in such securities.

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.

Large-Capitalization Securities Risk - The Fund is subject to the risk that
large-capitalization stocks may underperform other segments of the equity market
or the equity market as a whole.

Leveraging Risk - The Fund's investment in derivative instruments generally
requires a small investment relative to the amount of investment exposure
assumed. As a result, such investments may give rise to losses that exceed the
amount invested in those instruments. The cost of investing in such instruments
generally increases as interest rates increase, which will lower the Fund's
return.

Liquidity Risk - In certain circumstances, it may be difficult for the Fund to
purchase and sell particular investments within a reasonable time at a fair
price. While the Fund only intends to invest in liquid futures, options,
forwards and swap contracts, under certain market conditions, such as when the
market makes a "limit move," it may be difficult or impossible for the Fund to
liquidate such investments. In addition, the ability of the Fund to assign an
accurate daily value to certain investments may be difficult, and the Advisor
may be required to fair value the investments.

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.

Non-Diversification Risk - The Fund is considered non-diversified and can invest
a greater portion of its assets in securities of individual issuers than a
diversified fund. As a result, changes in the market value of a single security
could cause greater fluctuations in the value of Fund shares than would occur in
a diversified fund.

OTC Trading Risk - Certain of the derivatives in which the Fund may invest may
be traded (and privately negotiated) in the OTC market. While the OTC
derivatives market is the primary trading venue for many derivatives, it is
largely unregulated. As a result and similar to other privately negotiated
contracts, the Fund is subject to counterparty credit risk with respect to such
derivative contracts.

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.

Short Sales Risk - Short selling a security involves selling a borrowed security
with the expectation that the value of the security will decline, so that the
security may be purchased at a lower price when returning the borrowed security.
The risk for loss on short selling is greater than the original value of the
securities sold short because the price of the borrowed security may rise,
thereby increasing the price at which the security must be purchased. Government
actions also may affect the Fund's ability to engage in short selling.

Small-Capitalization and Mid-Capitalization Securities Risk - The Fund is
subject to the risk that small-and mid-capitalization stocks may underperform
other segments of the equity market or the equity market as a whole.

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.
Risk Nondiversified Status [Text] rr_RiskNondiversifiedStatus The Fund is considered non-diversified and can invest a greater portion of its assets in securities of individual issuers than a diversified fund. As a result, changes in the market value of a single security could cause greater fluctuations in the value of Fund shares than would occur in a diversified fund.
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 and the Credit Suisse Event Driven Liquid 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 3.03%.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock Highest Quarter Return                         Lowest Quarter Return
(quarter ended 12/31/2011) 7.74%   (quarter ended 9/30/2011) -11.12%
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)
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies Fund | S&P 500® Index
 
Risk Return [Abstract] rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel S&P 500® Index (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 2.11%
Since Inception rr_AverageAnnualReturnSinceInception 16.53%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies Fund | Credit Suisse Event Driven Liquid Index
 
Risk Return [Abstract] rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Credit Suisse Event Driven Liquid Index (reflects no deduction for fees, expenses or taxes)
1 Year rr_AverageAnnualReturnYear01 0.43%
Since Inception rr_AverageAnnualReturnSinceInception 8.02%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies 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 0.90%
Distribution and/or Shareholder Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.78%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.03%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.96% [1]
Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.08%) [2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 1.88% [1]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 657
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,038
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,443
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,571
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (5.78%)
Since Inception rr_AverageAnnualReturnSinceInception 3.53%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies Fund | A-Class | After Taxes on Distributions
 
Risk Return [Abstract] rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (6.77%)
Since Inception rr_AverageAnnualReturnSinceInception 0.98%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies 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 (3.76%)
Since Inception rr_AverageAnnualReturnSinceInception 1.54%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies 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 0.90%
Distribution and/or Shareholder Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.76%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.03%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.69% [1]
Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.06%) [2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 2.63% [1]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 366
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 817
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,395
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,964
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 266
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 817
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,395
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 2,964
Annual Return 2011 rr_AnnualReturn2011 (1.82%)
Year to Date Return, Label rr_YearToDateReturnLabel The year-to-date return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Jun. 30, 2012
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.03%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest Quarter Return
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2011
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.74%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest Quarter Return
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2011
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (11.12%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (2.77%)
Since Inception rr_AverageAnnualReturnSinceInception 6.05%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies Fund | C-Class | After Taxes on Distributions
 
Risk Return [Abstract] rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (3.82%)
Since Inception rr_AverageAnnualReturnSinceInception 3.42%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies 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 (1.81%)
Since Inception rr_AverageAnnualReturnSinceInception 3.65%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies 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 0.90%
Distribution and/or Shareholder Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.71%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.03%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.64% [1]
Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.03%) [2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 1.61% [1]
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 164
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 508
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 876
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,911
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 (0.80%)
Since Inception rr_AverageAnnualReturnSinceInception 7.22%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies Fund | Institutional Class | After Taxes on Distributions
 
Risk Return [Abstract] rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 (1.85%)
Since Inception rr_AverageAnnualReturnSinceInception 4.58%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
Event Driven and Distressed Strategies Fund (Second Prospectus Summary) | Event Driven and Distressed Strategies 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 (0.53%)
Since Inception rr_AverageAnnualReturnSinceInception 4.63%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 30, 2010
[1] The Total Annual Fund Operating Expenses in this fee table (before and after any fee waivers and/or expense reimbursement) may not correlate to the expense ratios in the Fund's financial highlights and financial statements because the financial highlights and financial statements reflect only the operating expenses of the Fund and do not include Acquired Fund Fees and Expenses, which are fees and expenses incurred indirectly by the Fund through its investments in certain underlying investment companies.
[2] The Advisor has contractually agreed to reduce fees and/or reimburse expenses to the extent necessary to keep net operating expenses for A-Class Shares, C-Class Shares and Institutional Class Shares (excluding interest, taxes, brokerage commissions, Acquired Fund Fees and Expenses, dividends on securities sold short, and extraordinary expenses ("Excluded Expenses")) from exceeding 1.90%. 2.65% and 1.65%, respectively, of the Fund's A-Class Shares, C-Class Shares and Institutional Class Shares average daily net assets. The Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement includes Excluded Expenses and, thus, from time to time may behigher than 1.90%, 2.65% and 1.65%, respectively. This Agreement may be terminated only with the approval of the Fund's Board of Trustees. In any event, this undertaking will continue for at least twelve months from the date of this Prospectus.