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Risk Return [Abstract] rr_RiskReturnAbstract  
ProspectusDate rr_ProspectusDate Jan. 31, 2012
FMI International Fund (Prospectus Summary) | FMI International Fund
  
Risk Return [Abstract] rr_RiskReturnAbstract  
Risk/Return, Heading rr_RiskReturnHeading FMI INTERNATIONAL FUND SUMMARY
Investment Objective, Heading rr_ObjectiveHeading Investment Objective:
investment Objective, Primary rr_ObjectivePrimaryTextBlock 
FMI International Fund seeks long-term capital appreciation.
Expense, Heading rr_ExpenseHeading Fees and Expenses of the Fund:
Expense, Narrative rr_ExpenseNarrativeTextBlock 
The following table describes the fees and expenses that you may pay if you buy and hold
shares of the Fund.
Shareholder Fees, Caption rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses, Caption rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover, Heading rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover rr_PortfolioTurnoverTextBlock 
The Fund pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover 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 fiscal period from December 31, 2010 (commencement of
operations) to September 30, 2011, the Fund's portfolio turnover rate was 12% of
the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 12.00%
Expense Example, Heading rr_ExpenseExampleHeading Example
Expense Example, Narrative rr_ExpenseExampleNarrativeTextBlock 
This Example is intended to help you compare the cost of investing in the Fund
with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in the Fund for the time periods
indicated and then redeem all of your shares at the end of these periods. The
Example also assumes that your investment has a 5% return each year and that the
Fund's operating expenses are equal to the net annual fund operating expenses
for the first year and the total annual fund operating expenses for the
remaining years.
Expense Example, By Year, Caption rr_ExpenseExampleByYearCaption Although your actual costs may be higher or lower, based on these assumptions, your costs would be:
Investment Strategy, Heading rr_StrategyHeading Principal Investment Strategies:
Investment Strategy, Narrative rr_StrategyNarrativeTextBlock 
The Fund invests mainly in a limited number of large capitalization ( namely,
companies with more than $5 billion market capitalization ) value stocks of
foreign companies (also referred to as non-U.S. companies). The Fund
normally invests at least 65% of its total assets in the equity securities
of non-U.S. companies. Non-U.S. companies are companies domiciled or
headquartered outside of the United States, or whose primary business
activities or principal trading markets are located outside of the United
States. Sometimes these non-U.S. companies are traded in the U.S. on a
national securities exchange, or through American Depositary Receipts ("ADRs")
or American Depositary Shares ("ADSs"). The Fund invests in common stocks and
other equity securities, including preferred stocks, convertible preferred
stocks, warrants, ADRs, ADSs and exchange-traded funds ("ETFs") based on an
international equity index.

Unlike many international funds, the majority of the Fund's investments will be
in companies that have global operations rather than in companies whose business
is limited to a particular country or geographic region. Because the Fund's
investments will be limited in number and investing in emerging market securities
will not be a principal investment strategy , a substantial amount of the Fund's
assets (namely, more than 25% of its assets) may be in issuers located in a
limited number of countries, and it is likely that the geographical and industry
weightings of the Fund will differ significantly from popular international
benchmarks. When determining whether an investment is in emerging market securities,
the Fund views an investment in the securities of a company domiciled or
headquartered in an emerging market, or whose primary business activities or
principal trading markets are located in an emerging market as an investment in an
emerging market.

The Fund uses fundamental analysis to look for stocks of good businesses that
are selling at value prices in an effort to achieve above average performance
with below average risk. The Fund believes good businesses have some or all of
the following characteristics:

o A strong, defendable market niche or products and services niche that is
difficult to replicate

o A high degree of relative recurring revenue

o Modestly priced products or services

o Attractive return-on-investment economics (namely, where return on investment
exceeds a company's cost of capital over a three to five year period)

o Above-average growth or improving profitability prospects

The Fund considers valuation:

o On both an absolute and relative to the market basis

o Utilizing both historical and prospective analysis

In reviewing companies, the Fund applies the characteristics identified above on
a case-by-case basis as the order of importance varies depending on the type of
business or industry and the company being reviewed.

The Fund's adviser will generally sell a portfolio security when the adviser
believes:

o The security has achieved its value potential

o Such sale is necessary for portfolio diversification

o Changing fundamentals signal a deteriorating value potential

o Other securities have a better value potential
Risk, Heading rr_RiskHeading Principal Risks:
Risk, Narrative rr_RiskNarrativeTextBlock 
There is a risk that you could lose all or a portion of your money on your
investment in the Fund. This risk may increase during times of significant
market volatility. The risks below could affect the value of your
investment, and because of these risks the Fund is a suitable investment
only for those investors who have long-term investment goals:

o Stock Market Risk: The prices of the securities in which the Fund invests may
decline for a number of reasons. The price declines of common stocks, in
particular, may be steep, sudden and/or prolonged. Price changes may occur in
the market as a whole, or they may occur in only a particular company, industry,
or sector of the market.

o Non-Diversification Risk: Because the Fund is non-diversified (meaning that
compared to diversified mutual funds, the Fund may invest a greater percentage
of its assets in a particular issuer), the Fund's shares may be more susceptible
to adverse changes in the value of a particular security than would be the
shares of a diversified mutual fund. Thus, the Fund is more sensitive to
economic, business and political changes which may result in greater price
fluctuations of the Fund's shares.

o Value Investing Risk: The Fund's portfolio managers may be wrong in their
assessment of a company's value and the stocks the Fund holds may not reach what
the portfolio managers believe are their full values. From time to time "value"
investing falls out of favor with investors. During these periods, the Fund's
relative performance may suffer.

o Foreign Securities Risk: Stocks of non-U.S. companies as an asset class may
underperform stocks of U.S. companies, and such stocks may be less liquid and
more volatile than stocks of U.S. companies. The costs associated with
securities transactions are often higher in foreign countries than the U.S. The
U.S. dollar value of foreign securities traded in foreign currencies (and any
dividends and interest earned) held by the Fund or by ETFs in which the Fund
invests may be affected favorably or unfavorably by changes in foreign currency
exchange rates. An increase in the U.S. dollar relative to these other
currencies will adversely affect the Fund, if the positions are not fully
hedged. Additionally, investments in foreign securities, whether or not
publicly traded in the United States, may involve risks which are in addition
to those inherent in domestic investments. Foreign companies may not be
subject to the same regulatory requirements of U.S. companies and, as a
consequence, there may be less publicly available information about such
companies. Also, foreign companies may not be subject to uniform accounting,
auditing and financial reporting standards and requirements comparable to those
applicable to U.S. companies. Foreign governments and foreign economies often
are less stable than the U.S. Government and the U.S. economy.

o Geographic Concentration Risk: Concentrating investments in a limited number
of countries or particular geographic regions makes the Fund more susceptible to
adverse economic, political, social, regulatory and other developments in that
country, countries or region. Additionally, the Fund's performance may be more
volatile when the Fund's investments are less diversified across countries.

o Currency Hedging Risk:  T he Fund may hedge a significant portion of its
foreign stock investments against foreign currency changes in an effort to have
its returns more closely reflect the market performance of its investments,
rather than the value of the currency. To the extent the Fund hedges portions of
its portfolio, its relative performance may differ from that of unhedged
portfolios or indices. There is no guarantee the hedges will fully protect
against adverse currency movements.

o Market Timing Risk: Frequent purchases and redemptions of Fund shares by a
shareholder may harm other Fund shareholders by interfering with the efficient
management of the Fund's portfolio, increasing brokerage and administrative
costs, and potentially diluting the value of their shares. However, the Fund's
Board of Directors has determined not to adopt policies and procedures that
discourage frequent purchases and redemptions of Fund shares because the Fund
has not experienced frequent purchases and redemptions of Fund shares that have
been disruptive to the Fund. The Fund's Board of Directors may reconsider its
decision not to adopt policies and procedures if it determines there is unusual
trading in Fund shares.
Risk, Lose Money rr_RiskLoseMoney There is a risk that you could lose all or a portion of your money on your investment in the Fund.
Risk, Nondiversified Status rr_RiskNondiversifiedStatus Because the Fund is non-diversified (meaning that compared to diversified mutual funds, the Fund may invest a greater percentage of its assets in a particular issuer), the Fund's shares may be more susceptible to adverse changes in the value of a particular security than would be the shares of a diversified mutual fund. Thus, the Fund is more sensitive to economic, business and political changes which may result in greater price fluctuations of the Fund's shares.
Bar Chart and Performance Table, Heading rr_BarChartAndPerformanceTableHeading Performance:
Performance, Narrative rr_PerformanceNarrativeTextBlock 
The following bar chart and table provide some indication of the risks of
investing in the Fund by showing how the Fund's performance for one year
compares to the performance of the Morgan Stanley Capital International
Europe, Australasia and Far East Index ("MSCI EAFE").   For additional
information on this index, please see "Index Descriptions" in the
Prospectus. The Fund's past performance (before and after taxes) is not
necessarily an indication of how the Fund will perform in the future. Updated
performance information is available on the Fund's website at
http://www.fmifunds.com.
Performance, Information Illustrates Variability of Returns rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table provide some indication of the risks of investing in the Fund by showing how the Fund's performance for one year compares to the performance of the Morgan Stanley Capital International Europe, Australasia and Far East Index ("MSCI EAFE").
Performance, Availability Website Address rr_PerformanceAvailabilityWebSiteAddress www.fmifunds.com
Performance, Past Does Not Indicate Future rr_PerformancePastDoesNotIndicateFuture The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart, Heading rr_BarChartHeading FMI International Fund (Annual total return as of 12/31)
Bar Chart, Closing rr_BarChartClosingTextBlock 
During the one year period shown on the bar chart, the Fund's highest total
return for a quarter was 8.78% (quarter ended December 31 , 2011) and the lowest
total return for a quarter was -12.16% (quarter ended September 30, 2011).  The
inception date of the Fund was December 31, 2010.
Index No Deduction for Fees, Expenses, Taxes rr_IndexNoDeductionForFeesExpensesTaxes reflects no deduction for fees, expenses or taxes
Performance Table, Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are 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 rr_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements such as 401(k) plans or Individual Retirement Accounts ("IRAs").
Performance Table, Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Actual after-tax returns depend on an investor's tax situation and may differ from those shown. In certain cases, the figure representing "Return after taxes on distributions and sale of Fund shares" may be higher than the other return figures for the same period, since a higher after-tax return results when a capital loss occurs upon redemption and provides an assumed tax deduction that benefits the investor.
Performance Table, Narrative rr_PerformanceTableNarrativeTextBlock 
After-tax returns are 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. In certain cases, the figure representing "Return after
taxes on distributions and sale of Fund shares" may be higher than the other
return figures for the same period, since a higher after-tax return results when
a capital loss occurs upon redemption and provides an assumed tax deduction that
benefits the investor. The after-tax returns shown are not relevant to investors
who hold their shares through tax-deferred arrangements such as 401(k) plans or
Individual Retirement Accounts ("IRAs").
Average Annual Returns, Caption rr_AverageAnnualReturnCaption Average Annual Total Returns (for the period ended December 31, 2011)
FMI International Fund (Prospectus Summary) | FMI International Fund | MSCI EAFE (Local Currency)
  
Risk Return [Abstract] rr_RiskReturnAbstract  
Average Annual Returns, Label rr_AverageAnnualReturnLabel MSCI EAFE (Local Currency) (reflects no deduction for fees, expenses or taxes)
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (12.15%) [1]
FMI International Fund (Prospectus Summary) | FMI International Fund | MSCI EAFE (U.S. Dollar)
  
Risk Return [Abstract] rr_RiskReturnAbstract  
Average Annual Returns, Label rr_AverageAnnualReturnLabel MSCI EAFE (U.S. Dollar) (reflects no deduction for fees, expenses or taxes)
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (12.14%) [1]
FMI International Fund (Prospectus Summary) | FMI International Fund | FMI International Fund
  
Risk Return [Abstract] rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends and Distributions rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther none
Redemption Fee (transfer agent charge of $15 for each wire redemption) rr_RedemptionFee none
Exchange Fee rr_ExchangeFee none
Management Fees rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 2.16%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.91%
Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (1.91%) [2]
Net Annual Fund Operating Expenses rr_NetExpensesOverAssets 1.00%
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination 2013-01-31
Expense Example, With Redemption, 1 Year rr_ExpenseExampleYear01 102
Expense Example, With Redemption, 3 Years rr_ExpenseExampleYear03 715
Expense Example, With Redemption, 5 Years rr_ExpenseExampleYear05 1,354
Expense Example, With Redemption, 10 Years rr_ExpenseExampleYear10 3,075
Annual Return 2011 rr_AnnualReturn2011 (1.77%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest total return for a quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2011
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 8.78%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest total return for a quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2011
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (12.16%)
Average Annual Returns, Label rr_AverageAnnualReturnLabel Return before taxes
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (1.77%) [1]
FMI International Fund (Prospectus Summary) | FMI International Fund | FMI International Fund | After Taxes on Distributions
  
Risk Return [Abstract] rr_RiskReturnAbstract  
Average Annual Returns, Label rr_AverageAnnualReturnLabel Return after taxes on distributions
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (1.82%) [1]
FMI International Fund (Prospectus Summary) | FMI International Fund | FMI International Fund | After Taxes on Distributions and Sales
  
Risk Return [Abstract] rr_RiskReturnAbstract  
Average Annual Returns, Label rr_AverageAnnualReturnLabel Return after taxes on distributions and sale of Fund shares
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (0.91%) [1]
[1] Inception December 31, 2010.
[2] The Fund's investment adviser has contractually agreed in the investment advisory agreement to waive its advisory fee to the extent necessary to ensure that net expenses (excluding federal, state and local taxes, interest, brokerage commissions and extraordinary items) do not exceed 1.75% of the average daily net assets of the Fund. The investment advisory agreement may be terminated by the Fund or the Fund's investment adviser for any reason upon sixty days prior written notice, but is expected to continue indefinitely. In addition to the reimbursement required under the investment advisory agreement, the investment adviser has agreed to reimburse the Fund to the extent necessary to ensure that total annual fund operating expenses do not exceed 1.00% at least through January 31, 2013 .