This table describes the fees and expenses that you may pay if you buy and hold 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 $50,000 in the O’Shaughnessy Funds’ Class A shares. More information about these and other discounts is available from your financial professional and in the “Shareholder Information” section on page 53 of the Fund’s Prospectus and the “Additional Purchase and Redemption Information” section on page 54 of the Fund’s SAI.

Shareholder Fees Caption [Text]

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SHAREHOLDER FEES (fees paid directly from your investment)

Operating Expenses Caption [Text]

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ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2014-11-27

Portfolio Turnover [Heading]

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Portfolio Turnover

Portfolio Turnover [Text Block]

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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 35.48% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

35.48%

Expenses Restated to Reflect Current [Text]

rr_ExpensesRestatedToReflectCurrent

Shareholder Servicing Plan Fees have been restated to reflect current fees.

Expense Example [Heading]

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Example

Expense Example Narrative [Text Block]

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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 (taking into account the contractual Expense Caps only in the first year). Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of the period:

Expense Example, No Redemption, By Year, Caption [Text]

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If you do not redeem your shares at the end of the period:

Strategy [Heading]

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Principal Investment Strategies of the Fund

Strategy Narrative [Text Block]

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Under normal market conditions, the Fund invests at least 80% of its net assets (including any borrowings for investment purposes) in dividend-producing securities. Such securities primarily include common stocks and other equity securities of medium to large capitalization companies listed on U.S. exchanges, which includes depositary receipts of foreign based companies (i.e., American Depositary Receipts (“ADRs”), European Depositary Receipts (“EDRs”), and Global Depositary Receipts (“GDRs”), etc.) whose common stock is not itself listed on a U.S. exchange. The Fund may also invest up to 25% of its total assets in equity securities of small capitalization companies which the Adviser defines by reference to those companies within the capitalization range of the Russell 2000® Index (which consists of companies with capitalizations from approximately $47 million up to approximately $4.209 billion as of August 31, 2013).

The Adviser screens securities using a factor-based model that seeks to identify market leading companies by analysis of a number of factors including, but not limited to, fair valuations, strong financial strength, market capitalization and volume. The Adviser may eliminate or substitute factors at its discretion. From this group of securities, the Adviser then employs a proprietary quantitatively-driven approach to security selection based on research and analysis of historical data (for example, companies’ past dividend yields and dividend yield rankings) to identify those securities with high dividend yields. Finally, the Adviser employs an “enhanced” strategy by overweighting those securities that it believes have the highest dividend yields. Portfolio securities may be sold generally upon periodic rebalancings of the Fund’s portfolio. The Adviser considers the same factors it uses in evaluating a security for purchase and generally sells securities when it believes such securities no longer meet its investment criteria. The Fund may from time to time emphasize investment in certain sectors of the market.

The Fund invests primarily in common stocks and other equity securities, including preferred stocks, convertible securities, rights and warrants to purchase common stock and depositary receipts. The Fund may invest a portion or all of its total assets in the securities of foreign issuers, including those in emerging markets, and may invest up to 10% of its total assets in REITs and foreign real estate companies. The Fund may invest up to 10% of its total assets in other investment companies, including ETFs. The Fund may purchase and sell certain derivative instruments, such as futures contracts and currency-related transactions involving futures contracts and forward contracts, for various portfolio management purposes, including to earn income, to facilitate portfolio management and to mitigate risks. In general terms, a derivative instrument is one whose value depends on (or is derived from) the value of an underlying asset, interest rate or index. The Adviser expects that the Fund’s investment strategy may result in a portfolio turnover rate in excess of 100% on an annual basis.

Risk [Heading]

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Principal Risks of Investing in the Fund

Risk Narrative [Text Block]

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Losing all or a portion of your investment is a risk of investing in the Fund. The following principal risks could affect the value of your investment:

Market Risk and Equity Risk. Market risk is the possibility that the market value of securities owned by the Fund will decline. Investments in common stocks and other equity securities generally are affected by changes in the stock markets, which fluctuate substantially over time, sometimes suddenly and sharply. The values of income-producing equity securities may or may not fluctuate in tandem with overall changes in the stock markets. The values of convertible securities tend to decline as interest rates rise and, because of the conversion feature, tend to vary with fluctuations in the market value of the underlying equity security.

·	Management Risk. The Fund is subject to management risk because it is an actively managed portfolio. The Adviser’s management practices and investment strategies might not work to meet the Fund’s investment objective.

·	Sector Risk. To the extent the Fund invests a significant portion of its assets in the securities of companies in the same sector of the market, the Fund is more susceptible to economic, political, regulatory and other occurrences influencing those sectors.

Foreign Securities Risk. The risks of investing in the securities of foreign issuers, including emerging market issuers and depositary receipts, can include fluctuations in foreign currencies, foreign currency exchange controls, political and economic instability, differences in securities regulation and trading, and foreign taxation issues. These risks are greater in emerging markets.

Small- and Medium-Sized Companies Risk. Small- and medium-sized companies often have less predictable earnings, more limited product lines, markets, distribution channels or financial resources and the management of such companies may be dependent upon one or few key people. The market movements of equity securities of small- and medium-sized companies may be more abrupt and volatile than the market movements of equity securities of larger, more established companies or the stock market in general and small-sized companies in particular, are generally less liquid than the equity securities of larger companies.

REITs and Foreign Real Estate Company Risk. Investing in REITs and foreign real estate companies makes the Fund more susceptible to risks associated with the ownership of real estate and with the real estate industry in general, as well as tax compliance risks, and may involve duplication of management fees and other expenses. REITs and foreign real estate companies may be less diversified than other pools of securities, may have lower trading volumes and may be subject to more abrupt or erratic price movements than the overall securities markets.

Investment Company Risk. When the Fund invests in an ETF or mutual fund, it will bear additional expenses based on its pro rata share of the ETF’s or mutual fund’s operating expenses, including the potential duplication of management fees. The risk of owning an ETF or mutual fund generally reflects the risks of owning the underlying securities the ETF or mutual fund holds. The Fund also will incur brokerage costs when it purchases ETFs.

Derivative Transactions Risk. Risks of derivatives include the possible imperfect correlation between the value of the instruments and the underlying assets; risks of default by the other party to the transaction; risks that the transactions may result in losses that partially or completely offset gains in portfolio positions; and risks that the instruments may not be liquid.

Portfolio Turnover Risk. A high portfolio turnover rate (100% or more) has the potential to result in the realization and distribution to shareholders of higher capital gains, which may subject you to a higher tax liability. High portfolio turnover also necessarily results in greater transaction costs which may reduce Fund performance.

Risk Lose Money [Text]

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Losing all or a portion of your investment is a risk of investing in the Fund.

Bar Chart and Performance Table [Heading]

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Performance

Performance Narrative [Text Block]

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The following performance information provides some indication of the risks of investing in the Fund. The bar chart shows the Fund’s Class A shares’ annual return from year to year. Sales loads are not reflected in the bar chart; if these amounts were reflected, returns would be less than those shown. The table shows how the Fund’s average annual returns for 1-year and since inception compare with those of broad measures of market performance. The Fund’s past performance, before and after taxes, does not necessarily indicate how it will perform in the future. Updated performance information is available by calling 1-877-291-7827 or by visiting www.osfunds.com.

Performance Information Illustrates Variability of Returns [Text]

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The following performance information provides some indication of the risks of investing in the Fund.

Performance Availability Phone [Text]

rr_PerformanceAvailabilityPhone

1-877-291-7827

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.osfunds.com

Performance Past Does Not Indicate Future [Text]

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The Fund's past performance, before and after taxes, does not necessarily indicate how it will perform in the future.

Bar Chart [Heading]

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Calendar Year Total Return as of December 31

Bar Chart Does Not Reflect Sales Loads [Text]

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Sales loads are not reflected in the bar chart; if these amounts were reflected, returns would be less than those shown.

Bar Chart Closing [Text Block]

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The Fund’s year-to-date return as of September 30, 2013 was 10.61%.

During the period of time shown in the bar chart, the Fund’s highest quarterly return was 8.68% for the quarter ended March 31, 2011, and the lowest quarterly return was -14.15% for the quarter ended September 30, 2011.

Year to Date Return, Label

rr_YearToDateReturnLabel

year-to-date return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2013

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

10.61%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2011

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

8.68%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2011

Lowest Quarterly Return

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(14.15%)

Index No Deduction for Fees, Expenses, Taxes [Text]

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(reflects no deduction for fees, expenses, or taxes)

Performance Table Uses Highest Federal Rate

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The after-tax returns were calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

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Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns are not relevant to investors who hold shares of the Fund through tax-deferred arrangements, such as 401(k) plans or IRAs.

Performance Table One Class of after Tax Shown [Text]

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The after-tax returns are shown only for the Class A Shares and the after-tax returns for the Class C shares will vary to the extent it has different expenses.

Performance Table Closing [Text Block]

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The after-tax returns were calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and after-tax returns are not relevant to investors who hold shares of the Fund through tax-deferred arrangements, such as 401(k) plans or IRAs. The after-tax returns are shown only for the Class A Shares and the after-tax returns for the Class C shares will vary to the extent it has different expenses.

Caption

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Average Annual Total Returns (for the period ended December 31, 2012)

MSCI All Country World Index (reflects no deduction for fees, expenses, or taxes)

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

MSCI All Country World Index (reflects no deduction for fees, expenses, or taxes)

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

16.13%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

10.02%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Aug. 16, 2010

Russell 1000 Value® Index (reflects no deduction for fees, expenses, or taxes)

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

Russell 1000 Value® Index (reflects no deduction for fees, expenses, or taxes)

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

17.51%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

14.24%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Aug. 16, 2010

Class A

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.25%

Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption price, whichever is less)

rr_MaximumDeferredSalesChargeOverOther

none

Redemption Fee (as a percentage of Amount Redeemed)

rr_RedemptionFeeOverRedemption

(2.00%)

Management Fees

rr_ManagementFeesOverAssets

0.65%

Distribution (Rule 12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

0.25%

Shareholder Servicing Plan Fees

rr_Component1OtherExpensesOverAssets

0.25%

^[1]

Other Expenses (includes Shareholder Servicing Plan Fees)

rr_OtherExpensesOverAssets

0.69%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.59%

Less: Fee Waiver and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.35%)

^[2]

Net Annual Fund Operating Expenses

rr_NetExpensesOverAssets

1.24%

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 $50,000 in the O'Shaughnessy Funds' Class A shares.

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

645

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

968

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,314

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

2,287

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

645

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

968

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

1,314

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

2,287

Annual Return 2011

rr_AnnualReturn2011

2.05%

Annual Return 2012

rr_AnnualReturn2012

11.86%

Label

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Class A Shares Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

6.03%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

7.74%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Aug. 16, 2010

Class A | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

Class A Shares Return After Taxes on Distributions

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

5.77%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

7.46%

Class A | After Taxes on Distributions and Sale of Fund Shares

Risk/Return:

rr_RiskReturnAbstract

Label

rr_AverageAnnualReturnLabel

Class A Shares Return After Taxes on Distributions and Sale of Fund Shares

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

4.77%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

6.83%

Class C

Risk/Return:

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 price, whichever is less)

rr_MaximumDeferredSalesChargeOverOther

1.00%

Redemption Fee (as a percentage of Amount Redeemed)

rr_RedemptionFeeOverRedemption

(2.00%)

Management Fees

rr_ManagementFeesOverAssets

0.65%

Distribution (Rule 12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

1.00%

Shareholder Servicing Plan Fees

rr_Component1OtherExpensesOverAssets

0.25%

^[1]

Other Expenses (includes Shareholder Servicing Plan Fees)

rr_OtherExpensesOverAssets

0.75%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

2.40%

Less: Fee Waiver and Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.41%)

^[2]

Net Annual Fund Operating Expenses

rr_NetExpensesOverAssets

1.99%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

302

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

709

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

1,243

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

2,705

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

202

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

709

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

1,243

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

$ 2,705

Label

rr_AverageAnnualReturnLabel

Class C Shares Return Before Taxes

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

9.91%

Average Annual Returns, Since Inception

rr_AverageAnnualReturnSinceInception

9.42%

Average Annual Returns, Inception Date

rr_AverageAnnualReturnInceptionDate

Aug. 16, 2010

[1]

Shareholder Servicing Plan Fees have been restated to reflect current fees.

[2]

O'Shaughnessy Asset Management, LLC (the "Adviser") has contractually agreed to waive all or a portion of its management fees and pay expenses of the Fund to ensure that Net Annual Fund Operating Expenses (excluding acquired fund fees and expenses ("AFFE"), interest, taxes and extraordinary expenses) do not exceed 1.24% of average daily net assets of the Fund's Class A shares and 1.99% of average daily net assets of the Fund's Class C shares (the "Expense Caps"). The Expense Caps will remain in effect through at least November 27, 2014, and may be terminated only by the Trust's Board of Trustees (the "Board"). The Adviser may request recoupment of previously waived fees and paid expenses from the Fund for three years from the date they were waived or paid, subject to the Expense Caps.