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Label Element Value
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Poplar Forest Cornerstone Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Poplar Forest Cornerstone Fund (the “Cornerstone Fund”) seeks to achieve current income and long-term growth of capital.
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 shares of the Cornerstone 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 Fund’s Class A shares.  More information about these and other discounts is available from your financial professional and in the “More About Class A Shares” section on page 30 of the Fund’s statutory Prospectus and the “Breakpoints/Volume Discounts and Sales Charge Waivers” section on page 27 of the Fund’s Statement of Additional Information (“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)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination 2016-01-27
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover.
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Cornerstone 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 Cornerstone Fund’s performance.  As the Cornerstone Fund is new, it does not have any portfolio turnover as of the date of this Prospectus.
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates Other expenses and acquired fund fees and expenses ("AFFE") are based on estimated amounts for the current fiscal year.
Acquired Fund Fees and Expenses, Based on Estimates [Text] rr_AcquiredFundFeesAndExpensesBasedOnEstimates Other expenses and acquired fund fees and expenses ("AFFE") are based on estimated amounts for the current fiscal year.
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 Cornerstone Fund with the cost of investing in other mutual funds.  The Example assumes that you invest $10,000 in the Cornerstone 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 Expense Caps only in the first year).
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
The Cornerstone Fund seeks to deliver superior, risk-adjusted returns over full market cycles, by building a balanced portfolio of debt and equity securities that aims to generate “real returns” while preserving capital.  A full market cycle is deemed to be a multi-year period including a period of material increase in the U.S. stock market (a “bull market”) and a period of material decline in the U.S. stock market (a “bear market”).  Equity securities in which the Fund may invest include, but are not limited to, common stocks, foreign equity securities, convertible securities, and options on stocks, warrants, rights, and/or other investment companies, including mutual funds and exchange traded funds (“ETFs”).  Equity securities will generally be selected based on qualitative analysis with individual positions no larger than 4% at time of purchase.  The Fund may invest in medium-sized companies, which the Adviser defines by reference to those companies within the capitalization range of the Russell Midcap® Index (which consists of companies with capitalizations from approximately $2.2 billion to approximately $27.1 billion as of May 31, 2014, the date of the last reconstitution of the Russell Midcap® Index) at the time of purchase.  Dividend paying companies with investment grade credit ratings will be the primary focus of the Fund’s equity investments.  Weightings between equity and fixed income securities will be tactically allocated based on prospective return potential and risk factors although equity exposure will not generally exceed 75% of net assets.  Fixed-income securities in which the Fund may invest include, but are not limited to, those of domestic governments, government agencies, inflation-protected securities, asset-backed securities, other investment companies, including mutual funds and ETFs, exchange-traded notes ("ETNs"), convertible securities, floating rate securities, mortgage-backed securities, municipalities and companies across a wide range of industries, and may be of any maturity and duration and include those that are rated below investment grade (i.e.,  “junk bonds”). 

The Cornerstone Fund is managed using a long-term approach to security selection.  Investments will generally be made with an intended investment horizon of three years, although individual investments may be held for shorter or longer time periods.

The Adviser evaluates investment opportunities using bottom-up, fundamental analysis, paying particular attention to a company’s:

1.  
expected future profits;

2.  
expected sustainable revenue and/or asset growth;

3.  
expected cash investment needed to support expected growth;

4.  
normalized free cash flow after considering Items 1 through 3 above; and

5.  
valuation relative to normalized earnings and free cash flow after giving consideration to growth potential and financial strength.

The Cornerstone Fund may invest up to 50% of its net assets in cash, cash-equivalents and high-quality, short-term debt securities and money market instruments for temporary defensive purposes.

The decision to sell securities is driven by the Adviser’s evaluation of prospective total returns relative to the perceived risk of the security in question.  A security may be sold when its estimated future return is low in an absolute sense or in order to fund the purchase of a new investment which offers a better risk/reward profile.  The Cornerstone Fund is managed in a tax sensitive manner and securities may be sold to generate tax losses in order to minimize realized taxable gains.
Risk [Heading] rr_RiskHeading Principal Investment Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
Losing a portion of your investment is a risk of investing in the Cornerstone Fund.  The following additional risks could affect the value of your investment:

·  
Management Risk – If the Adviser’s investment strategies do not produce the expected results, the value of the Cornerstone Fund could decrease.

·  
Market Risk – If the stock market as a whole, or the value of an individual company, goes down, the result could be a decrease in the value of the Cornerstone Fund.

·  
Value-Style Investing Risk – Value stocks can perform differently from the market as a whole and from other types of stocks.  Value stocks may be purchased based upon the belief that a given security may be out of favor; that belief may be misplaced or the security may stay out of favor for an extended period of time.

·  
Debt Securities Risk – The following risks are associated with the Fund’s investment in debt securities.

o  
Prepayment and Extension Risk.  The risk that the securities may be paid off earlier or later than expected.  Either situation could cause securities to pay lower-than-market rates of interest, which could hurt the Fund’s yield or share price.

o  
Interest Rate Risk.  The risk that changes in fixed income securities will decline in value because of changes in interest rates. It is likely there will be less governmental action in the near future to maintain low interest rates.  The negative impact on fixed income securities from the resulting rate increases for that and other reasons could be swift and significant.

o  
Credit Risk.  The risk of loss on an investment due to the deterioration of an issuer’s financial strength.  Such a deterioration of financial strength may result in a reduction of the credit rating of the issuer’s securities and may lead to the issuer’s inability to honor its contractual obligations, including making timely payment of interest and principal.

o  
High-Yield Securities Risk.  Debt securities that are rated below investment grade (i.e., “junk bonds”) are subject to additional risk factors due to the speculative nature of these securities, such as increased possibility of default liquidation of the security, and changes in value based on public perception of the issuer.

·  
Medium-Sized Companies Risk – Investing in securities of medium-sized companies may involve greater risk than investing in larger, more established companies because they can be subject to greater share price volatility than larger, more established companies.

· 
Foreign Securities Risk – The risks of investing in the securities of foreign issuers can include fluctuations in foreign currencies, foreign currency exchange controls, political and economic instability, differences in securities regulation and trading, and foreign taxation issues.

·  
Convertible Securities Risk – Convertible securities are subject to the risks of both debt securities and equity securities.  The values of convertible securities tend to decline as interest rates rise and, due to the conversion feature, tend to vary with fluctuations in the market value of the underlying common or preferred stock.

·  
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.

·  
Options Risk – Options on securities may be subject to greater fluctuations in value than an investment in the underlying securities.  Purchasing and writing put and call options are highly specialized activities and entail greater than ordinary investment risks.

·  
Asset-Backed Securities Risk – Asset-Backed securities risk includes Market Risk, Interest Rate Risk, Credit Risk and Prepayment Risk (i.e., borrowers whose loans collateralize the securities held by the Fund may be able to prepay principal due on these loans, which could cause the Fund to reinvest the proceeds at lower yields).

·  
Mortgage-Backed Securities Risk – These include Market Risk, Interest Rate Risk, Credit Risk and Prepayment Risk as well as the risk that the structure of certain mortgage-backed securities may make their reaction to interest rates and other factors difficult to predict, making their prices very volatile.  In particular, the recent events related to the U.S. housing market have had a severe negative impact on the value of some mortgage-backed securities and resulted in an increased risk associated with investments in the securities.

· 
New Fund Risk – The Cornerstone Fund is new with no operating history and there can be no assurance that the Fund will grow to or maintain an economically viable size.

The Cornerstone Fund may be appropriate for investors who:

 
are interested in protecting their purchasing power by investing in common stocks; but

 
would prefer less volatility than would generally be inherent in an all equity account.
Risk Lose Money [Text] rr_RiskLoseMoney Losing a portion of your investment is a risk of investing in the Cornerstone Fund.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
When the Cornerstone Fund has been in operation for a full calendar year, performance information will be shown here.  Updated performance information will be available on the Cornerstone Fund’s website at www.poplarforestfunds.com or by calling 1-877-522-8860.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess When the Cornerstone Fund has been in operation for a full calendar year, performance information will be shown here.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-877-522-8860
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.poplarforestfunds.com
Class A
 
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.00%rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice
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/ rr_ProspectusShareClassAxis
= ck0001027596_C000149955Member
Management Fees rr_ManagementFeesOverAssets 0.80%rr_ManagementFeesOverAssets
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= ck0001027596_S000047729Member
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= ck0001027596_C000149955Member
Distribution and Service (Rule 12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%rr_DistributionAndService12b1FeesOverAssets
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= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149955Member
Other Expenses rr_OtherExpensesOverAssets 1.32%rr_OtherExpensesOverAssets
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= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149955Member
[1]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.02%rr_AcquiredFundFeesAndExpensesOverAssets
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= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149955Member
[1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.39%rr_ExpensesOverAssets
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= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149955Member
Less: Fee Waiver rr_FeeWaiverOrReimbursementOverAssets (1.22%)rr_FeeWaiverOrReimbursementOverAssets
/ dei_LegalEntityAxis
= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149955Member
[2]
Net Annual Fund Operating Expenses rr_NetExpensesOverAssets 1.17%rr_NetExpensesOverAssets
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= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149955Member
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 Fund's Class A shares.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000rr_ExpenseBreakpointMinimumInvestmentRequiredAmount
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Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 613rr_ExpenseExampleYear01
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Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,097rr_ExpenseExampleYear03
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/ rr_ProspectusShareClassAxis
= ck0001027596_C000149955Member
Institutional Class
 
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.80%rr_ManagementFeesOverAssets
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= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149956Member
Distribution and Service (Rule 12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 1.32%rr_OtherExpensesOverAssets
/ dei_LegalEntityAxis
= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149956Member
[1]
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.02%rr_AcquiredFundFeesAndExpensesOverAssets
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= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149956Member
[1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.14%rr_ExpensesOverAssets
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= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149956Member
Less: Fee Waiver rr_FeeWaiverOrReimbursementOverAssets (1.22%)rr_FeeWaiverOrReimbursementOverAssets
/ dei_LegalEntityAxis
= ck0001027596_S000047729Member
/ rr_ProspectusShareClassAxis
= ck0001027596_C000149956Member
[2]
Net Annual Fund Operating Expenses rr_NetExpensesOverAssets 0.92%rr_NetExpensesOverAssets
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/ rr_ProspectusShareClassAxis
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Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 94rr_ExpenseExampleYear01
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Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 552rr_ExpenseExampleYear03
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[1] Other expenses and acquired fund fees and expenses ("AFFE") are based on estimated amounts for the current fiscal year.
[2] Poplar Forest Capital, LLC (the "Adviser') has contractually agreed to waive a portion or all of its management fees and pay Fund expenses (excluding AFFE, interest, taxes and extraordinary expenses) in order to limit the Net Annual Fund Operating Expenses to 1.15% and 0.90% of average daily net assets of the Fund's Class A shares and Institutional Class shares, respectively (the "Expense Caps"). The Expense Caps will remain in effect through at least January 27, 2016, 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 Funds for three years from the date they were waived or paid, subject to the Expense Caps.