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Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Pax World Small Cap Fund Summary of Key Information
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The Small Cap Fund's investment objective is to seek long-term growth of capital.

Expense [Heading] rr_ExpenseHeading Fees & Expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

The tables below describe the fees and expenses that you may pay if you buy and hold Institutional Class, Individual Investor Class, Class A or Class R shares of the Small Cap Fund. You may qualify for sales charge discounts for Class A shares if you and your spouse or minor children invest, or agree to invest in the future, at least $50,000 in Class A shares of the Small Cap Fund. More information about these and other discounts is available from your financial intermediary, under "Shareholder Guide—Sales Charges" on page 91 of this Prospectus and under "Distribution and Shareholder Services—Sales Charge Reductions and Waivers" in the Statement of Additional Information.

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 you pay each year as a percentage of the value of your investment):
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination 2015-12-31
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when shares are held in a taxable account. These transaction costs, which are not reflected in "Annual Fund Operating Expenses" or in the "Example of Expenses," affect the Small Cap Fund's performance. During the Small Cap Fund's most recent fiscal year, the Small Cap Fund's portfolio turnover rate was 162% of the average value of its portfolio.

Portfolio Turnover, Rate rr_PortfolioTurnoverRate 162.00%
Expense Example [Heading] rr_ExpenseExampleHeading Example of Expenses
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in Institutional Class, Individual Investor Class, Class A and Class R shares of the Small Cap Fund with the cost of investing in other mutual funds.


The table assumes that an investor invests $10,000 in Institutional Class, Individual Investor Class, Class A or Class R shares of the Small Cap Fund for the time periods indicated and then redeems all of his or her shares at the end of those periods. The table also assumes that the investment has a 5% return each year, that all dividends and distributions are reinvested and that the Small Cap Fund's operating expenses remain the same throughout those periods. Although an investor's actual expenses may be higher or lower than those shown in the table, based on these assumptions his or her expenses would be:

Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

The Small Cap Fund follows a sustainable investing approach, combining rigorous financial analysis with equally rigorous environmental, social and governance (ESG) analysis in order to identify investments.


Under normal market conditions, the Small Cap Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities (such as common stocks, securities convertible into common or preferred stocks and warrants) of companies that, when purchased, have capitalizations within the range of the Russell 2000 Index as measured by market capitalization. As of March 31, 2014, the Russell 2000 Index included companies with market capitalization from approximately $18 million to $10.7 billion.


The Small Cap Fund selects equity securities on a company-by-company basis primarily through the use of fundamental analysis. The portfolio manager may overweight or underweight a specific sector and may take concentrated positions which could lead to increased volatility. The Small Cap Fund is not constrained by any particular investment style, and may therefore invest in "growth" stocks, "value" stocks or a combination of both. Additionally, it may buy stocks in any sector or industry.


The Small Cap Fund may invest up to 45% of its assets in securities of non-U.S. issuers, including American Depositary Receipts ("ADRs"), but may invest no more than 25% of its assets in securities of non-U.S. issuers other than ADRs. The Small Cap Fund's investments in securities of non-U.S. issuers, if any, may be diversified across multiple countries or geographic regions, or may be focused in a single country or geographic region.


The Small Cap Fund may utilize derivatives for hedging and for investment purposes.


The Small Cap Fund avoids investing in companies that its investment adviser determines are significantly involved in the manufacture of weapons or weapons-related products, manufacture tobacco products or engage in unethical business practices.

Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

•  Market Risk Conditions in a broad or specialized market, a sector thereof or an individual industry may adversely affect security prices, thereby reducing the value of the Fund's investments.


•  Derivatives Risk Derivatives involve special risks and may result in losses. The values of derivatives can be very volatile, especially in unusual market conditions, and that volatility can be exacerbated by the use of leverage, which is common for derivative strategies. Derivatives may be illiquid, and may also be subject to the risk of nonperformance by a transaction counterparty. The Fund may not be able to enter into, or terminate, a derivatives position when desired. Derivatives are also subject to mispricing and improper valuation, and may increase the amount of taxes payable by shareholders.


•  Non-U. S. Securities Risk Non-U.S. securities may have less liquidity and more volatile prices than domestic securities, which can make it difficult for the Fund to sell such securities at desired times or prices. Non-U.S. markets may differ from U.S. markets in material and adverse ways. For example, securities transaction expenses generally are higher, transaction settlement may be slower, recourse in the event of default may be more limited and taxes and currency exchange controls may limit amounts available for distribution to shareholders. Non-U.S. investments are also subject to the effects of local political, social, diplomatic or economic events.


•  Turnover Risk Frequent changes in the securities held by a Fund increases the Fund's transaction costs and may result in adverse tax consequences, which together may adversely affect the Fund's performance.


•  Growth Securities Risk Growth securities typically trade at higher multiples of current earnings than other securities. Therefore, the values of growth securities may be more sensitive to changes in current or expected earnings than the values of other securities.


•  Small- and Medium-Sized Capitalization Company Risk Securities of small- and medium-sized companies may have less liquidity and more volatile prices than securities of larger companies, which can make it difficult for the Fund to sell such securities at desired times or prices.


•  Value Securities Risk Value securities are securities the investment adviser believes are selling at a price lower than their true value, perhaps due to adverse business developments or special risks. If that belief is wrong or remains unrecognized by the market, the price of the securities may decline or may not appreciate as anticipated.


As with all mutual funds, investors may lose money by investing in the Small Cap Fund.


The foregoing descriptions are only summaries. Please see "About the Funds—Risks" on page 69 for more detailed descriptions of the foregoing risks.

Risk Lose Money [Text] rr_RiskLoseMoney As with all mutual funds, investors may lose money by investing in the Small Cap Fund.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance Information
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The bar chart below presents the calendar year total returns for Individual Investor Class shares of the Small Cap Fund before taxes. The bar chart is intended to provide some indication of the risk of investing in the Small Cap Fund by showing changes in the Small Cap Fund's performance from year to year. As with all mutual funds, past performance (before and after taxes) is not necessarily an indication of future performance.

Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The performance table is intended to provide some indication of the risks of investment in the Small Cap Fund by showing how the Small Cap Fund's average annual total returns compare with the returns of a broad-based securities market index and a performance average of other similar mutual funds, each over a one-year period and since inception.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 800.767.1729
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.paxworld.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture As with all mutual funds, past performance (before and after taxes) is not necessarily an indication of future performance.
Bar Chart [Heading] rr_BarChartHeading Individual Investor Class
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock

For the periods shown in the bar chart:

 

Best quarter: 2nd quarter 2009, 19.79%

 
   

Worst quarter: 3rd quarter 2011, -21.71%

 
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2009
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 19.79%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2011
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.71%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are estimated using the highest historical individual federal marginal income tax rates and do not reflect the effect of local, state or foreign taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns will depend on a shareholder's own tax situation and may differ from those shown. After-tax returns may not be relevant to shareholders who hold their shares through tax-deferred arrangements (such as 401(k) plans and individual retirement accounts).
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax performance is presented only for Individual Investor Class Shares of the Fund. After-tax returns for Class A, Institutional Class and Class R shares may vary.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock

The performance table below presents the average annual total returns for Individual Investor Class, Class A, Institutional Class and Class R shares of the Small Cap Fund. The performance table is intended to provide some indication of the risks of investment in the Small Cap Fund by showing how the Small Cap Fund's average annual total returns compare with the returns of a broad-based securities market index and a performance average of other similar mutual funds, each over a one-year period and since inception. After-tax performance is presented only for Individual Investor Class shares of the Fund. After-tax returns for Class A, Institutional Class and Class R shares may vary. After-tax returns are estimated using the highest historical individual federal marginal income tax rates and do not reflect the effect of local, state or foreign taxes. Actual after-tax returns will depend on a shareholder's own tax situation and may differ from those shown. After-tax returns may not be relevant to shareholders who hold their shares through tax-deferred arrangements (such as 401(k) plans and individual retirement accounts). As with all mutual funds, past performance (before and after taxes) is not necessarily an indication of future performance.

Russell 2000 Index
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 38.82% [1],[2]
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 20.08% [1],[2]
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 10.98% [1],[2]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Mar. 27, 2008 [1],[2]
Lipper Small-Cap Core Funds Index
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 36.13% [1],[3]
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 20.75% [1],[3]
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 10.88% [1],[3]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Mar. 27, 2008 [1],[3]
Institutional Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a % of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) imposed on redemptions (as a % of the lower of original purchase price or net asset value) rr_MaximumDeferredSalesChargeOverOther none
Shareholder Fees (fees paid directly from your investment): rr_ShareholderFeeOther none
Management Fee rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.66%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.41%
Contractual Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.42%) [4]
Net Annual Fund Operating Expenses rr_NetExpensesOverAssets 0.99%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 101
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 405
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 731
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,655
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 43.64% [5]
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 23.17% [5]
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 12.09% [5]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Mar. 27, 2008 [5]
Individual Investor Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a % of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) imposed on redemptions (as a % of the lower of original purchase price or net asset value) rr_MaximumDeferredSalesChargeOverOther none
Shareholder Fees (fees paid directly from your investment): rr_ShareholderFeeOther none
Management Fee rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.66%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.66%
Contractual Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.42%) [4]
Net Annual Fund Operating Expenses rr_NetExpensesOverAssets 1.24%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 126
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 482
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 863
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,930
Annual Return 2009 rr_AnnualReturn2009 37.02%
Annual Return 2010 rr_AnnualReturn2010 30.17%
Annual Return 2011 rr_AnnualReturn2011 (3.50%)
Annual Return 2012 rr_AnnualReturn2012 13.55%
Annual Return 2013 rr_AnnualReturn2013 43.24%
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 43.24% [5]
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 22.85% [5]
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 11.79% [5]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Mar. 27, 2008 [5]
Individual Investor Class | After Taxes
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 37.36% [5]
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 20.63% [5]
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 10.02% [5]
Individual Investor Class | After Taxes and Distributions
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 24.97% [5]
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 18.05% [5]
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 8.88% [5]
R Class
  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a % of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum deferred sales charge (load) imposed on redemptions (as a % of the lower of original purchase price or net asset value) rr_MaximumDeferredSalesChargeOverOther none
Shareholder Fees (fees paid directly from your investment): rr_ShareholderFeeOther none
Management Fee rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other Expenses rr_OtherExpensesOverAssets 0.66%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.91%
Contractual Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.42%) [4]
Net Annual Fund Operating Expenses rr_NetExpensesOverAssets 1.49%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 152
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 559
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 993
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,199
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 42.90% [5]
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 22.54% [5]
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 11.51% [5]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate Mar. 27, 2008 [5]
Class A
  
Risk/Return: rr_RiskReturnAbstract  
Maximum sales charge (load) imposed on purchases (as a % of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.50%
Maximum deferred sales charge (load) imposed on redemptions (as a % of the lower of original purchase price or net asset value) rr_MaximumDeferredSalesChargeOverOther 1.00% [6]
Shareholder Fees (fees paid directly from your investment): rr_ShareholderFeeOther none
Management Fee rr_ManagementFeesOverAssets 0.75%
Distribution and/or Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.66%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.66%
Contractual Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.42%) [4]
Net Annual Fund Operating Expenses rr_NetExpensesOverAssets 1.24%
Expenses Deferred Charges [Text Block] rr_ExpensesDeferredChargesTextBlock This charge applies to investors who purchase $1 million or more of Class A shares without an initial sales charge and redeem them within 18 months of purchase, with certain exceptions. See "Shareholder Guide-Sales Charges."
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts for Class A shares if you and your spouse or minor children invest, or agree to invest in the future, at least $50,000 in Class A shares of the Small Cap Fund.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount 50,000
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 669
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 1,006
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,365
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 2,374
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 35.30% [5],[7]
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 21.48% [5],[7]
Average Annual Returns, Since Inception rr_AverageAnnualReturnSinceInception 10.70% [5],[7]
Average Annual Returns, Inception Date rr_AverageAnnualReturnInceptionDate May 01, 2013 [5],[7]
[1] Unlike the Small Cap Fund, the Russell 2000 Index and the Lipper Small-Cap Core Funds Index are not investments, are not professionally managed, have no policy of sustainable investing and (with the exception of the Lipper Small-Cap Core Funds Index) do not reflect deductions for fees, expenses or taxes. One cannot invest directly in any index.
[2] The Russell 2000 Index measures the performance of the small-cap segment of the U.S. equity universe. The Russell 2000 Index is a subset of the Russell 3000 Index representing approximately 10% of the total market capitalization of that index. It includes approximately 2000 of the smallest securities based on a combination of their market cap and current index membership.
[3] The Lipper Small-Cap Core Funds Index tracks the results of the 30 largest mutual funds in the Lipper Small-Cap Core Funds Average. The Lipper Small-Cap Core Funds Average is a total return performance average of the mutual funds tracked by Lipper, Inc. that, by portfolio practice, invest at least 75% of their equity assets in companies with market capitalizations (on a three-year weighted basis) below Lipper's USDE small-cap ceiling. Small-cap core funds have more latitude in the companies in which they invest. These funds typically have an average price-to-earnings ratio, price-to-book ratio, and three-year sales-per-share growth value, compared to the S&P SmallCap 600 Index. The Lipper Small-Cap Core Funds Index is not what is typically considered to be an "index" because it tracks the performance of other mutual funds rather than the changes in the value of a group of securities, a securities index or some other traditional economic indicator.
[4] The Small Cap Fund's investment adviser has contractually agreed to reimburse expenses (excluding acquired fund fees and expenses, if any) allocable to Institutional Class, Individual Investor Class, Class A and Class R shares of the Small Cap Fund to the extent such expenses exceed 0.99%, 1.24%, 1.24% and 1.49% of the average daily net assets of Institutional Class, Individual Investor Class, Class A and Class R shares, respectively. This reimbursement arrangement may not be amended or terminated without the approval of the Fund's Board of Trustees before December 31, 2015.
[5] The Fund's inception date is March 27, 2008. The Fund's investment adviser assumed certain expenses during the period; total returns would have been lower had these expenses not been assumed. Total return figures include reinvested dividends and capital gains distributions, and changes in principal value, and, other than for Individual Investor Class shares, do not reflect the taxes that a shareholder might pay on Fund distributions or on the redemption of Fund shares. These figures represent past performance, which is no guarantee of future results. Investment return and principal value of an investment will fluctuate so that an investor's shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance data quoted. For more recent month-end performance data, please visit www.paxworld.com or call us at 800.767.1729.
[6] This charge applies to investors who purchase $1 million or more of Class A shares without an initial sales charge and redeem them within 18 months of purchase, with certain exceptions. See "Shareholder Guide-Sales Charges."
[7] Inception of Class A shares is May 1, 2013. The performance information shown for Class A shares includes the performance of Individual Investor Class shares, adjusted to reflect the sales charge applicable to Class A shares, for the period prior to Class A inception.