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  <rr:RiskReturnHeading contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align="right"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="6"&gt;BMO Low Volatility Equity Fund&amp;nbsp;&lt;/font&gt;&lt;/p&gt;</rr:RiskReturnHeading>
  <rr:ObjectiveHeading contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Investment Objective: &lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;To provide capital appreciation. &lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Fees and Expenses of the Fund &lt;/font&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Shareholder Fees (fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleHeading contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Example &lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other 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&amp;#8217;s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-year example reflect the Adviser&amp;#8217;s agreement to waive fees and reimburse expenses through December 31, 2013. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:&lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Portfolio Turnover &lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Principal Investment Strategies &lt;/font&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund invests at least 80% of its assets in a broadly diversified portfolio of common stocks of large-sized U.S. companies similar in size to those within the Russell 1000&lt;font style="FONT-FAMILY: arial" size="1"&gt;&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt;&lt;/font&gt; Index. These large-sized companies, at the time of purchase, generally have market capitalizations in the range of companies in the Russell 1000&lt;font style="FONT-FAMILY: arial" size="1"&gt;&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt;&lt;/font&gt; Index. The largest company by market capitalization in the Russell 1000&lt;font style="FONT-FAMILY: arial" size="1"&gt;&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt;&lt;/font&gt; Index was approximately $572.5 billion as of July 31, 2012 and the median market capitalization of companies in the Index as of the same date was approximately $5.10 billion. The Fund invests in stocks that exhibit less volatile stock price patterns when compared to stocks in the Russell 1000&lt;font style="FONT-FAMILY: arial" size="1"&gt;&lt;sup style="POSITION: relative; BOTTOM: 0.8ex; VERTICAL-ALIGN: baseline"&gt;&amp;#174;&lt;/sup&gt;&lt;/font&gt; Index. The Adviser selects stocks using a unique, quantitative approach.&lt;br/&gt;&lt;br/&gt;From time to time, the Fund maintains a portion of its assets in cash. The Fund may increase its cash holdings in response to market conditions or in the event attractive investment opportunities are not available.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Principal Risks &lt;/font&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A. or any of its affiliates and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Stock Market Risks.&lt;/b&gt; The Fund is subject to fluctuations in the stock market, which has periods of increasing and decreasing values. Stocks are more volatile than debt securities. If the value of the Fund&amp;#8217;s investments goes down, you may lose money.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Sector Risks.&lt;/b&gt; Companies with similar characteristics, such as those within the same industry, may be grouped together in broad categories called sectors. To the extent the Fund invests its assets in a particular sector, the Fund&amp;#8217;s performance may be more susceptible to any economic, business or other developments that generally affect that sector.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Management Risks.&lt;/b&gt; The Adviser&amp;#8217;s judgments about the attractiveness, value and potential appreciation of the Fund&amp;#8217;s investments may prove to be incorrect. Accordingly, there is no guarantee that the investment techniques used by the Fund&amp;#8217;s managers will produce the desired results. &lt;br/&gt;&lt;br/&gt;&lt;b&gt;Cash Risks.&lt;/b&gt; To the extent the Fund holds cash or cash equivalents rather than securities, this could cause the Fund to not achieve its investment objective and could negatively affect the Fund&amp;#8217;s performance.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Fund Performance &lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Performance information is not included because the Fund does not have one full calendar year of performance. &lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118492_Member" unitRef="USD">92</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118493_Member" unitRef="USD">66</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118492_Member" unitRef="USD">409</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118493_Member" unitRef="USD">331</rr:ExpenseExampleYear03>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">December 31, 2013</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;i&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the Fund&amp;#8217;s current fiscal year because it is a new fund. &lt;/i&gt;&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:RiskLoseMoney contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt; The net asset value of the Fund will vary and you could lose money by investing in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt; An investment in the Fund is not a deposit of BMO Harris Bank N.A. or any of its affiliates and is not insured or guaranteed by the FDIC or any other government agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:PerformanceOneYearOrLess contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Performance information is not included because the Fund does not have one full calendar year of performance. &lt;/font&gt;</rr:PerformanceOneYearOrLess>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038425_Member">&lt;div style="display:none"&gt;~ http://www.bmofundsus.com/role/ScheduleShareholderFeesBMOLowVolatilityEquityFund column period compact * ~&lt;/div&gt;

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  <rr:ProspectusDate contextRef="Duration_29Sep2011_28Sep2012">2012-09-28</rr:ProspectusDate>
  <dei:DocumentEffectiveDate contextRef="Duration_29Sep2011_28Sep2012">2012-09-27</dei:DocumentEffectiveDate>
  <dei:DocumentCreationDate contextRef="Duration_29Sep2011_28Sep2012">2012-09-27</dei:DocumentCreationDate>
  <rr:RiskReturnHeading contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align="right"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="6"&gt;BMO Short Tax-Free Fund&lt;/font&gt;&lt;/p&gt;</rr:RiskReturnHeading>
  <rr:ObjectiveHeading contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Investment Objective: &lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;To provide current income that is exempt from federal income tax and is consistent with preservation of capital. &lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Fees and Expenses of the Fund &lt;/font&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Shareholder Fees (fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleHeading contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Example &lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other 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&amp;#8217;s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-year example reflect the Adviser&amp;#8217;s agreement to waive fees and/or reimburse expenses through December 31, 2013. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be:&lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Portfolio Turnover &lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Principal Investment Strategies &lt;/font&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund invests at least 80% of its assets in municipal securities, the income from which is exempt from federal income tax (including the federal alternative minimum tax (AMT)). Fund investments include municipal securities with a minimum rating in the lowest investment grade category (i.e., rated BBB or Baa, or higher, or unrated and considered by the Adviser to be comparable in quality) at the time of purchase. Municipal securities include debt obligations of states, territories and possessions of the U.S. and political subdivisions and financing authorities of these entities that provide income exempt from federal income tax (including federal AMT). The Adviser selects Fund investments after assessing factors such as the cyclical trend in interest rates, the shape of the municipal yield curve, tax rates, sector valuation and municipal bond supply factors. The Fund normally maintains an average dollar-weighted effective maturity of one to three years. Effective maturity takes into account the possibility that a bond may have prepayments or may be called by the issuer before its stated maturity date. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Principal Risks &lt;/font&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A. or any of its affiliates and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Interest Rate Risks.&lt;/b&gt; Prices of fixed income securities rise and fall in response to changes in the interest rate paid by similar securities. Generally, when interest rates rise, prices of fixed income securities fall. Interest rate changes have a greater effect on the price of fixed income securities with longer maturities.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Credit Risks.&lt;/b&gt; Credit risk is the possibility that an issuer will default on a security by failing to pay interest or principal when due. If an issuer defaults, the Fund may lose money. Lower credit ratings correspond to higher credit risk. Bonds rated lower than BBB or Baa have speculative characteristics.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Call Risks.&lt;/b&gt; If the securities in which the Fund invests are redeemed by the issuer before maturity (or &amp;#8220;called&amp;#8221;), the Fund may have to reinvest the proceeds in securities that pay a lower interest rate, which may decrease the Fund&amp;#8217;s yield. This will most likely happen when interest rates are declining.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Liquidity Risks. &lt;/b&gt;Liquidity risk refers to the possibility that the Fund may not be able to sell or buy a security or close out an investment contract at a favorable price or time. Consequently, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash or give up an investment opportunity, any of which could have a negative effect on the Fund&amp;#8217;s performance. Infrequent trading of securities also may lead to an increase in their price volatility.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Municipal Securities Risks. &lt;/b&gt;Municipal bonds are subject to risks based on many factors, including economic and regulatory developments, changes or proposed changes in the federal and state tax structure, deregulation, court rulings and other factors. The value of municipal securities may be affected more by supply and demand factors or the creditworthiness of the issuer than by market interest rates. Repayment of municipal securities depends on the ability of the issuer or project backing such securities to generate taxes or revenues. There is a risk that the interest on an otherwise tax-exempt municipal security may be subject to federal income tax.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Management Risks.&lt;/b&gt; The Adviser&amp;#8217;s judgments about the attractiveness, value and potential appreciation of the Fund&amp;#8217;s investments may prove to be incorrect. Accordingly, there is no guarantee that the investment techniques used by the Fund&amp;#8217;s managers will produce the desired results.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Sector Risks.&lt;/b&gt; The Fund may invest its assets in municipal securities that finance similar projects, such as those relating to education, health care, transportation and utilities. To the extent the Fund invests its assets in a particular sector, the Fund&amp;#8217;s performance may be more susceptible to any economic, business or other developments that generally affect that sector. &lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Fund Performance &lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Performance information is not included because the Fund does not have one full calendar year of performance. &lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118494_Member" unitRef="USD">56</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118495_Member" unitRef="USD">41</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118494_Member" unitRef="USD">280</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118495_Member" unitRef="USD">211</rr:ExpenseExampleYear03>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">December 31, 2013</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;i&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the Fund&amp;#8217;s current fiscal year because it is a new fund. &lt;/i&gt;&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:RiskLoseMoney contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt; The net asset value of the Fund will vary and you could lose money by investing in the Fund. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A. or any of its affiliates and is not insured or guaranteed by the FDIC or any other government agency.  &lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:PerformanceOneYearOrLess contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Performance information is not included because the Fund does not have one full calendar year of performance. &lt;/font&gt;</rr:PerformanceOneYearOrLess>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;div style="display:none"&gt;~ http://www.bmofundsus.com/role/ScheduleShareholderFeesBMOShortTermTaxFreeFund column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;div style="display:none"&gt;~ http://www.bmofundsus.com/role/ScheduleAnnualFundOperatingExpensesBMOShortTermTaxFreeFund column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038426_Member">&lt;div style="display:none"&gt;~ http://www.bmofundsus.com/role/ScheduleExpenseExampleBMOShortTermTaxFreeFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px" align="right"&gt;&lt;font style="FONT-FAMILY: Times New Roman" size="6"&gt;BMO TCH Emerging Markets Bond Fund&amp;nbsp;&lt;/font&gt;&lt;/p&gt;</rr:RiskReturnHeading>
  <rr:ObjectiveHeading contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Investment Objective: &lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;To maximize total return consistent with current income. &lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseHeading contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Fees and Expenses of the Fund &lt;/font&gt;</rr:ExpenseHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Shareholder Fees (fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleHeading contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Example &lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other 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&amp;#8217;s operating expenses are as shown in the table and remain the same. The costs in the one-year example and for the first year of the three-year example reflect the Adviser&amp;#8217;s agreement to waive fees and reimburse expenses through December 31, 2013. Although your actual costs and returns may be higher or lower, based on these assumptions your costs would be: &lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Portfolio Turnover &lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund incurs transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; 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&amp;#8217;s performance. &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:StrategyHeading contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Principal Investment Strategies &lt;/font&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund invests at least 80% of its assets in debt securities of emerging market governments or of companies located in emerging markets or whose primary business activities or principal trading markets are in emerging markets. Debt securities include sovereign debt instruments and corporate bonds. The Fund&amp;#8217;s sub-adviser, Taplin, Canida &amp;amp; Habacht, LLC (TCH), an affiliate of the Adviser, considers emerging markets to be those markets in any country other than Canada, Luxembourg, the U.S., Australia, Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Israel, Italy, Japan, the Netherlands, New Zealand, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. TCH may make adjustments to the list of emerging markets countries from time to time based on economic criteria, market changes or other factors.&lt;br/&gt;&lt;br/&gt;Although the Fund will invest primarily in securities with a minimum rating in the lowest investment grade category (i.e., rated BBB or Baa, or higher, or unrated and considered by the sub-adviser to be comparable in quality) at the time of purchase, the Fund may invest up to 20% of its assets in debt securities that are below investment grade, also known as high yield securities or &amp;#8220;junk bonds.&amp;#8221; TCH uses macroeconomic, credit and market analysis to select portfolio securities. Although the Fund expects to maintain an intermediate- to long-term average effective maturity, there are no maturity restrictions on individual holdings or on the overall portfolio. Effective maturity takes into account the possibility that a bond may have prepayments or may be called by the issuer before its stated maturity date.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Principal Risks &lt;/font&gt;</rr:RiskHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The Fund cannot assure that it will achieve its investment objective. An investment in the Fund is not a deposit of BMO Harris Bank N.A. or any of its affiliates and is not insured or guaranteed by the FDIC or any other government agency. The net asset value of the Fund will vary and you could lose money by investing in the Fund. In addition, the Fund is subject to the following risks.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Foreign Securities Risks.&lt;/b&gt; Investing in foreign securities may involve additional risks, including currency-rate fluctuations, political and economic instability, differences in financial reporting standards, less-strict regulation of the securities markets and possible imposition of foreign withholding taxes. Furthermore, the Fund may incur higher costs and expenses when making foreign investments, which will affect the Fund&amp;#8217;s total return.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Emerging Markets Risks.&lt;/b&gt; Investments in emerging markets can involve risks in addition to and greater than those generally associated with investing in more developed foreign markets, which may make emerging market securities more volatile and potentially less liquid than securities issued in more developed markets.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Sovereign Debt Risk.&lt;/b&gt; Sovereign debt instruments are subject to the risk that a governmental entity may be unable to pay interest or repay principal on its sovereign debt due to cash flow problems, insufficient foreign currency reserves or political concerns. Financial markets have recently experienced increased volatility due to the uncertainty surrounding the sovereign debt of certain European countries.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Interest Rate Risks.&lt;/b&gt; Prices of fixed income securities rise and fall in response to changes in the interest rate paid by similar securities. Generally, when interest rates rise, prices of fixed income securities fall. Interest rate changes have a greater effect on the price of fixed income securities with longer maturities.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Credit Risks.&lt;/b&gt; Credit risk is the possibility that an issuer or counterparty will default on a security or repurchase agreement by failing to pay interest or principal when due. If an issuer defaults, the Fund may lose money. Lower credit ratings correspond to higher credit risk. Bonds rated lower than BBB or Baa have speculative characteristics.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;High Yield Securities Risks.&lt;/b&gt; High yield securities, also referred to as &amp;#8220;junk bonds&amp;#8221; or non-investment grade securities, are debt securities rated lower than BBB by Standard &amp;amp; Poor&amp;#8217;s or Baa by Moody&amp;#8217;s Investors Service. These securities tend to be more sensitive to economic conditions than are higher-rated securities, generally involve more credit risk than securities in the higher-rated categories and are predominantly considered to be speculative. The issuers of high yield securities are typically more leveraged, and the risk of loss due to default by an issuer of high yield securities is significantly greater than issuers of higher-rated securities because such securities are generally unsecured and are often subordinated to other creditors. The Fund may have difficulty disposing of certain high yield securities because there may be a thin trading market for such securities.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Call Risks.&lt;/b&gt; If the securities in which the Fund invests are redeemed by the issuer before maturity (or &amp;#8220;called&amp;#8221;), the Fund may have to reinvest the proceeds in securities that pay a lower interest rate, which may decrease the Fund&amp;#8217;s yield. This will most likely happen when interest rates are declining. &lt;br/&gt;&lt;br/&gt;&lt;b&gt;Liquidity Risks.&lt;/b&gt; Liquidity risk refers to the possibility that the Fund may not be able to sell or buy a security or close out an investment contract at a favorable price or time. Consequently, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash or give up an investment opportunity, any of which could have a negative effect on the Fund&amp;#8217;s performance. Infrequent trading of securities also may lead to an increase in their price volatility.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Management Risks.&lt;/b&gt; TCH&amp;#8217;s judgments about the attractiveness, value and potential appreciation of the Fund&amp;#8217;s investments may prove to be incorrect. Accordingly, there is no guarantee that the investment techniques used by the Fund&amp;#8217;s managers will produce the desired results. &lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#225cab" size="3"&gt;Fund Performance &lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Performance information is not included because the Fund does not have one full calendar year of performance. &lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118496_Member" unitRef="USD">102</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118497_Member" unitRef="USD">87</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118496_Member" unitRef="USD">486</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118497_Member" unitRef="USD">419</rr:ExpenseExampleYear03>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">December 31, 2013</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;&lt;i&gt;&amp;#8220;Other Expenses&amp;#8221; are based on estimated amounts for the Fund&amp;#8217;s current fiscal year because it is a new fund. &lt;/i&gt;&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:RiskLoseMoney contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;The net asset value of the Fund will vary and you could lose money by investing in the Fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;An investment in the Fund is not a deposit of BMO Harris Bank N.A. or any of its affiliates and is not insured or guaranteed by the FDIC or any other government agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:PerformanceOneYearOrLess contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;font style="FONT-FAMILY: arial" size="2"&gt;Performance information is not included because the Fund does not have one full calendar year of performance. &lt;/font&gt;</rr:PerformanceOneYearOrLess>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;div style="display:none"&gt;~ http://www.bmofundsus.com/role/ScheduleShareholderFeesBMOTCHEmergingMarketsBondFund column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;div style="display:none"&gt;~ http://www.bmofundsus.com/role/ScheduleAnnualFundOperatingExpensesBMOTCHEmergingMarketsBondFund column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_29Sep2011_28Sep2012S000038427_Member">&lt;div style="display:none"&gt;~ http://www.bmofundsus.com/role/ScheduleExpenseExampleBMOTCHEmergingMarketsBondFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118492_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118493_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118492_Member" unitRef="pure">0.005</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118493_Member" unitRef="pure">0.005</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118492_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118493_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_2" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118492_Member" unitRef="pure">0.0097</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_3" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118493_Member" unitRef="pure">0.0072</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118492_Member" unitRef="pure">0.0147</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118493_Member" unitRef="pure">0.0122</rr:ExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_4" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118492_Member" unitRef="pure">0.009</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_5" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118493_Member" unitRef="pure">0.0065</rr:NetExpensesOverAssets>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118493_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118492_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_6" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118493_Member" unitRef="pure">-0.0057</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_7" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038425_MemberC000118492_Member" unitRef="pure">-0.0057</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118494_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118495_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118495_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118494_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118494_Member" unitRef="pure">0.0025</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118495_Member" unitRef="pure">0.0025</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118494_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118495_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_8" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118494_Member" unitRef="pure">0.0078</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_9" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118495_Member" unitRef="pure">0.0053</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118494_Member" unitRef="pure">0.0103</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118495_Member" unitRef="pure">0.0078</rr:ExpensesOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_10" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118495_Member" unitRef="pure">-0.0038</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_11" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118494_Member" unitRef="pure">-0.0048</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:NetExpensesOverAssets id="Item_12" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118494_Member" unitRef="pure">0.0055</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_13" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038426_MemberC000118495_Member" unitRef="pure">0.004</rr:NetExpensesOverAssets>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118496_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118497_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118497_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:RedemptionFeeOverRedemption decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118496_Member" unitRef="pure">-0.02</rr:RedemptionFeeOverRedemption>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118496_Member" unitRef="pure">0.006</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118497_Member" unitRef="pure">0.006</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118496_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118497_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_14" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118496_Member" unitRef="pure">0.0119</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_15" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118497_Member" unitRef="pure">0.0094</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118496_Member" unitRef="pure">0.0179</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118497_Member" unitRef="pure">0.0154</rr:ExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_16" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118496_Member" unitRef="pure">0.01</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_17" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118497_Member" unitRef="pure">0.0085</rr:NetExpensesOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_18" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118497_Member" unitRef="pure">-0.0069</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_19" decimals="4" contextRef="Duration_29Sep2011_28Sep2012S000038427_MemberC000118496_Member" unitRef="pure">-0.0079</rr:FeeWaiverOrReimbursementOverAssets>
  <link:footnoteLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="#Item_2" xlink:label="OtherExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_OtherExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_OtherExpensesOverAssets">"Other Expenses" are based on estimated amounts for the Fund's current fiscal year because it is a new fund.</link:footnote>
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    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_15_lbl" xlink:to="footnote_OtherExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_4" xlink:label="NetExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_NetExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_NetExpensesOverAssets">BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent class total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund's business and Acquired Fund Fees and Expenses) from exceeding 0.90% for Class Y and 0.65% for Class I through December 31, 2013. The Adviser may not terminate this arrangement prior to December 31, 2013 unless the investment advisory agreement is terminated.</link:footnote>
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    <link:loc xlink:type="locator" xlink:href="#Item_6" xlink:label="Item_6_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_7" xlink:label="Item_7_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_7_lbl" xlink:to="footnote_NetExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_10" xlink:label="FeeWaiverOrReimbursementOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets">BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee or reimburse expenses to the extent necessary to prevent total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund's business) from exceeding 0.55% for Class Y and 0.40% for Class I through December 31, 2013. The Adviser may not terminate this arrangement prior to December 31, 2013 unless the investment advisory agreement is terminated.</link:footnote>
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    <link:loc xlink:type="locator" xlink:href="#Item_12" xlink:label="Item_12_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_12_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_13" xlink:label="Item_13_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_13_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_16" xlink:label="NetExpensesOverAssets_2" />
    <link:footnote xlink:type="resource" xlink:label="footnote_NetExpensesOverAssets_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_NetExpensesOverAssets_2">BMO Asset Management Corp. (Adviser) has agreed to waive or reduce its investment advisory fee and reimburse expenses to the extent necessary to prevent class total annual operating expenses (excluding interest, taxes, brokerage commissions, other investment-related costs and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of the Fund's business and Acquired Fund Fees and Expenses) from exceeding 1.00% for Class Y and 0.85% for Class I through December 31, 2013. The Adviser may not terminate this arrangement prior to December 31, 2013 unless the investment advisory agreement is terminated.</link:footnote>
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