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  <unit id="USD">
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</rr:ShareholderFeesTableTextBlock>
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</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesCorePlusBondSeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000003628_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesCommoditySeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
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</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000032513_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesInflationFocusEquitySeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesInternationalSeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000032512_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesEmergingMarketsSeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesSmallCapSeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesGlobalFixedIncomeSeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
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</rr:ShareholderFeesTableTextBlock>
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</rr:ShareholderFeesTableTextBlock>
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  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003645_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003633_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003627_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000032512_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003630_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003637_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000032513_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003628_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000025218_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">Example</rr:ExpenseExampleHeading>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesRealEstateSeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesDiversifiedTaxExemptSeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
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</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesTechnologySeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleShareholderFeesLifeSciencesSeries column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
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  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="USD">628</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="USD">514</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="USD">649</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003634_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">Example</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="USD">488</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="USD">622</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="USD">617</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="USD">357</rr:ExpenseExampleYear05>
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  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003631_Member">Example</rr:ExpenseExampleHeading>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.3782</rr:AnnualReturn2003>
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  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="USD">455</rr:ExpenseExampleYear05>
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  <rr:ExpenseExampleHeading contextRef="Duration_02May2011_01May2012S000003638_Member">Example</rr:ExpenseExampleHeading>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0423</rr:AnnualReturn2003>
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  <rr:AnnualReturn2003 xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure" />
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003634_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;High Yield Bond Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
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  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000032512_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Emerging Markets Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Small Cap Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003627_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Financial Services Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003645_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Life Sciences Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section&lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003626_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Technology Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003633_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Global Fixed Income Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000032513_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Inflation Focus Equity Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000025218_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Real Estate Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003628_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Commodity Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 35% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 84% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">The Series was not active during the year ended December 31, 2011. The Series will pay transaction costs when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, will affect the performance of the Series.</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003637_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;New York Tax Exempt Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;World Opportunities Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 56% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 48% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_02May2011_01May2012S000032512_Member">Other expenses and AFFE are based on estimated amounts for the current fiscal year.</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000032512_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. For the period November 16, 2011 to December 31, 2011, the portfolio turnover rate of the Series was 0% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 7% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003628_Member">As of the date of this prospectus, this Series has never been active. The Series will pay transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, will affect the performance of the Series.</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_02May2011_01May2012S000032513_Member">Other expenses and AFFE are based on estimated amounts for the current fiscal year.</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 52% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003632_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 63% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 75% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000032513_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. For the period August 23, 2011 to December 31, 2011, the portfolio turnover rate of the Series was 9% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 34% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesWorldOpportunitiesSeries column period compact * ~&lt;/div&gt;

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  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 81% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_02May2011_01May2012S000003633_Member">Other expenses are based on estimated expenses for the current fiscal year.</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003637_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003630_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003631_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Core Bond Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section&lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_02May2011_01May2012S000003628_Member">Other expenses are based on estimated amounts for the current fiscal year.</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 18% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003634_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000025218_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003627_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003631_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003628_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesCommoditySeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.1644</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesCorePlusBondSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.0654</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesFinancialServicesSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000032513_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesInflationFocusEquitySeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesInternationalSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003626_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000032512_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesEmergingMarketsSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesSmallCapSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003645_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesGlobalFixedIncomeSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesCoreBondSeries column period compact * ~&lt;/div&gt;

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  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesHighYieldBondSeries column period compact * ~&lt;/div&gt;

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  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003635_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Ohio Tax Exempt Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 60% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">The Series pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 53% of the average value of its portfolio.</rr:PortfolioTurnoverTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003638_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02May2011_01May2012S000003635_Member">www.manning-napier.com</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:RiskReturnHeading contextRef="Duration_02May2011_01May2012S000003638_Member">&lt;font style="FONT-FAMILY: Times New Roman" color="#507642" size="6"&gt;Diversified Tax Exempt Series&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;b&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#262626" size="4"&gt;Summary Section &lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="USD">112</rr:ExpenseExampleYear01>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003632_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003632_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003645_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003630_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003645_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003633_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003634_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(fees paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003630_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="USD">78</rr:ExpenseExampleYear01>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000032513_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003633_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003627_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003627_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003634_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000025218_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(fees paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="USD">114</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000032513_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003626_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003628_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="USD">122</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000025218_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003628_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="USD">116</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003626_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000032512_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000032512_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003637_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003637_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="USD">90</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="USD">115</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003628_MemberC000010090_Member" unitRef="USD">115</rr:ExpenseExampleYear01>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000032512_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000032512_MemberC000100293_Member" unitRef="USD">130</rr:ExpenseExampleYear01>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series' financial statements) because the financial highlights include only the Series' direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="USD">90</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="USD">115</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="USD">114</rr:ExpenseExampleYear01>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000032513_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003626_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series' financial statements) because the financial highlights include only the Series' direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003632_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each full calendar year since its inception.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="USD">65</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="USD">121</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="USD">96</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000032513_MemberC000100294_Member" unitRef="USD">124</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="USD">116</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member">2005-04-21</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003632_MemberC000010098_Member">2005-04-21</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003632_MemberC000010098_Member">2005-04-21</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003632_MemberBankOfAmericaMerrillLynchUsCorporateGovernmentAndMortgageIndex_Member">2005-04-21</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003633_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each full calendar year during which it has been active during the past ten calendar years.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003637_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003637_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each of the last ten calendar years.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">The bar chart and average annual total return table provide some indication of the risks of investing in Class A shares of the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class A shares of the Series for each of the last ten calendar years.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Class A shares of the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class A shares of the Series for each of the last ten calendar years.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003630_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. No Class I shares were outstanding during the past year. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class S shares of the Series for each of the last ten calendar years.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member">2005-07-01</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003627_MemberC000010089_Member">2005-07-01</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003627_MemberC000010089_Member">2005-07-01</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003627_MemberSPFiveHundredIndex_Member">2005-07-01</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003627_MemberSPFiveHundredFinancialServicesIndex_Member">2005-07-01</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003634_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003632_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series' financial statements) because the financial highlights include only the Series' direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003631_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003627_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series' financial statements) because the financial highlights include only the Series' direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003631_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003634_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. No Class I shares were outstanding during the calendar year ended December 31, 2011. Because the Class S shares of the Series invest in the same portfolio of securities, returns for the Class I shares will be substantially similar to those of the Class S shares. Performance will be different only to the extent that the Class I shares have lower expenses. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class S Shares of the Series for each full calendar year during which it has been active during the past ten calendar years.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003631_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000025218_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. No Class I shares were outstanding during the calendar year ended December 31, 2011. Because the Class S shares of the Series invest in the same portfolio of securities, returns for the Class I shares will be substantially similar to those of the Class S shares. Performance will be different only to the extent that the Class I shares have lower expenses. The bar chart shows the performance of the Class S Shares of the Series (formerly Class A Shares) for each full calendar year since its inception.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003627_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each full calendar year since its inception.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003631_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each full calendar year since its inception.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member">1996-09-06</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003629_MemberC000010095_MemberClassProspectus_Member">1996-09-06</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003629_MemberC000010095_MemberClassProspectus_Member">1996-09-06</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003629_MemberMsciAllCountryWorldIndexExUsIndex_MemberClassProspectus_Member">1996-09-30</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member">1994-01-17</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003637_MemberC000010107_Member">1994-01-17</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003637_MemberC000010107_Member">1994-01-17</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003637_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member">1994-01-17</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member">2005-04-21</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003631_MemberC000010097_Member">2005-04-21</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003631_MemberC000010097_Member">2005-04-21</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003631_MemberBankOfAmericaMerrillLynchUsCorporateGovernmentAndMortgageIndex_Member">2005-04-21</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member">1992-08-27</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003630_MemberC000010096_Member">1992-08-27</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003630_MemberC000010096_Member">1992-08-27</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003630_MemberSPFiveHundredIndex_Member">1992-08-27</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member">1992-04-30</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003644_MemberC000010130_MemberClassProspectus_Member">1992-04-30</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003644_MemberC000010130_MemberClassProspectus_Member">1992-04-30</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_MemberSPFiveHundredIndex_Member">1992-04-30</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_MemberRussellTwoThousandIndex_Member">1992-04-30</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003630_MemberMsciAllCountryWorldIndexExUsIndex_Member">1992-08-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member">2009-09-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003634_MemberC000010100_Member">2009-09-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003634_MemberC000010100_Member">2009-09-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003634_MemberBankOfAmericaMerrillLynchUsHighYieldCashPayBbbRatedIndex_Member">2009-09-14</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="USD">74</rr:ExpenseExampleYear01>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003626_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each of the last ten calendar years.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member">2009-11-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000025218_MemberC000075173_Member">2009-11-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000025218_MemberC000075173_Member">2009-11-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000025218_MemberSAndPFiveHundredIndex_Member">2009-11-10</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003645_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003630_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003645_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each of the last ten calendar years.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesNewYorkTaxExemptSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003635_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003635_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="USD">84</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="USD">61</rr:ExpenseExampleYear01>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003638_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003638_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each of the last ten calendar years.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000003635_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02May2011_01May2012S000003635_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each of the last ten calendar years.</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesDiversifiedTaxExemptSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesOhioTaxExemptSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_02May2011_01May2012S000003638_Member">&lt;b&gt;Shareholder Fees&lt;/b&gt;&lt;br/&gt;(paid directly from your investment)</rr:ShareholderFeesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02May2011_01May2012S000003638_Member">&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)</rr:OperatingExpensesCaption>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesTechnologySeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesLifeSciencesSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualFundOperatingExpensesRealEstateSeries column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_02May2011_01May2012S000025218_Member">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series&amp;#146; financial statements) because the financial highlights include only the Series&amp;#146; direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <dei:DocumentPeriodEndDate contextRef="Duration_02May2011_01May2012">2011-12-31</dei:DocumentPeriodEndDate>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="USD">350</rr:ExpenseExampleYear03>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.0673</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.0575</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.0581</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberMsciAllCountryWorldIndexExUsIndex_MemberClassProspectus_Member" unitRef="pure">0.0631</rr:AverageAnnualReturnYear10>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000032512_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:FeeWaiverOrReimbursementOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000032512_MemberC000100293_Member" unitRef="pure">-0.0095</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="USD">243</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">-0.1078</rr:AnnualReturn2002>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:Component1OtherExpensesOverAssets id="Item_3" decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="pure">0</rr:Component1OtherExpensesOverAssets>
  <rr:Component1OtherExpensesOverAssets id="Item_4" decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.0025</rr:Component1OtherExpensesOverAssets>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">-0.1614</rr:AnnualReturn2011>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000032513_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:FeeWaiverOrReimbursementOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="pure">-0.0006</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">-0.0006</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003628_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003632_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="USD">356</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. The Series was not active at any time during the 2011 fiscal year; therefore, the &amp;#147;Total Annual Fund Operating Expenses&amp;#148; presented are estimates based upon projections made by the Advisor. In addition, the Series has not calculated these expenses beyond the three year period shown. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:FeeWaiverOrReimbursementOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000032513_MemberC000100294_Member" unitRef="pure">-0.0016</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="USD">381</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000032512_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same (taking into account the Advisor&amp;#146;s contractual expense limitation for the first year only). Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:Component1OtherExpensesOverAssets id="Item_5" decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="pure">0</rr:Component1OtherExpensesOverAssets>
  <rr:Component1OtherExpensesOverAssets id="Item_6" decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.0025</rr:Component1OtherExpensesOverAssets>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="USD">362</rr:ExpenseExampleYear03>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003645_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003633_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same (taking into account the Advisor&amp;#146;s contractual expense limitation for the first year only). Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:Component1OtherExpensesOverAssets id="Item_7" decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="pure">0</rr:Component1OtherExpensesOverAssets>
  <rr:Component1OtherExpensesOverAssets id="Item_8" decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.0025</rr:Component1OtherExpensesOverAssets>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003637_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003627_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003628_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. As of the date of this prospectus, this Series has never been active; therefore, the &amp;#147;Total Annual Fund Operating Expenses&amp;#148; presented are estimates based upon projections made by the Advisor. In addition, the Series has not calculated these expenses beyond the three year period shown. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="USD">294</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="USD">372</rr:ExpenseExampleYear03>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003637_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 09/30/09): 6.23%&lt;br/&gt;Lowest (quarter ended 12/31/10): (5.27)%</rr:BarChartClosingTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003628_MemberC000010090_Member" unitRef="USD">359</rr:ExpenseExampleYear03>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000032512_MemberC000100293_Member" unitRef="USD">606</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000032513_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same (taking into account the Advisor&amp;#146;s contractual expense limitation for the first year only). Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003630_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000032512_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="USD">281</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="USD">359</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="USD">356</rr:ExpenseExampleYear03>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="USD">205</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="USD">300</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="USD">378</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000032513_MemberC000100294_Member" unitRef="USD">421</rr:ExpenseExampleYear03>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003628_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0981</rr:AnnualReturn2002>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003634_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0837</rr:AnnualReturn2011>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.0491</rr:AnnualReturn2011>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000025218_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000032513_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 09/30/09): 7.48%&lt;br/&gt;Lowest (quarter ended 09/30/08): (3.42)%</rr:BarChartClosingTextBlock>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0437</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003637_MemberC000010107_Member" unitRef="pure">0.0426</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003637_MemberC000010107_Member" unitRef="pure">0.043</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0515</rr:AverageAnnualReturnYear10>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="USD">362</rr:ExpenseExampleYear03>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.0748</rr:BarChartHighestQuarterlyReturn>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003632_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003626_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:RiskNondiversifiedStatus contextRef="Duration_02May2011_01May2012S000003633_Member">The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.</rr:RiskNondiversifiedStatus>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 06/30/09): 20.94% &lt;br/&gt;Lowest (quarter ended 12/31/08): (28.42)%</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003627_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt; FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 12/31/02): 4.46%&lt;br/&gt;Lowest (quarter ended 03/31/02): 0.68%</rr:BarChartClosingTextBlock>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">-0.0798</rr:AnnualReturn2011>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003637_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">The 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. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">The 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&amp;#146;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003632_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:RiskNondiversifiedStatus contextRef="Duration_02May2011_01May2012S000032512_Member">The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.</rr:RiskNondiversifiedStatus>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 06/30/09): 25.88%&lt;br/&gt;Lowest (quarter ended 12/31/08): (32.79)%</rr:BarChartClosingTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">Quarterly Returns&lt;br /&gt;Highest (quarter ended 06/30/09): 21.88%&lt;br /&gt;Lowest (quarter ended 12/31/08): (28.38)%</rr:BarChartClosingTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsWorldOpportunitiesSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.2588</rr:BarChartHighestQuarterlyReturn>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">-0.1793</rr:AnnualReturn2002>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 09/30/09): 24.95% &lt;br/&gt;Lowest (quarter ended 12/31/08): (24.30)%</rr:BarChartClosingTextBlock>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">-0.143</rr:AnnualReturn2002>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">-0.0733</rr:AnnualReturn2011>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">-0.1293</rr:AnnualReturn2011>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure">0.0446</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.2495</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.2188</rr:BarChartHighestQuarterlyReturn>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.033</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.0213</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.0277</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0293</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_MemberRussellTwoThousandIndex_Member" unitRef="pure">0.0562</rr:AverageAnnualReturnYear10>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">The 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&amp;#146;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">Performance numbers for the Series are calculated from September 6, 1996, the Series&amp;#146; inception date. Performance numbers for the Index are calculated from September 30, 1996. &lt;br/&gt;&lt;br/&gt;The 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&amp;#146;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskNondiversifiedStatus contextRef="Duration_02May2011_01May2012S000003634_Member">The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.</rr:RiskNondiversifiedStatus>
  <rr:RiskNondiversifiedStatus contextRef="Duration_02May2011_01May2012S000003628_Member">The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.</rr:RiskNondiversifiedStatus>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">Quarterly Returns &lt;br/&gt;Highest (quarter ended 06/30/03): 25.99%&lt;br/&gt; Lowest (quarter ended 09/30/02): (23.04)%</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003645_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br /&gt; FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.0439</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003645_MemberC000010131_Member" unitRef="pure">0.0314</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003645_MemberC000010131_Member" unitRef="pure">0.033</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0293</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberSAndPFiveHundredHealthCareIndex_Member" unitRef="pure">0.0227</rr:AverageAnnualReturnYear10>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003630_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003631_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 09/30/09): 6.81%&lt;br/&gt;Lowest (quarter ended 09/30/08): (3.80)%</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003631_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">The 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&amp;#8217;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.0529</rr:AnnualReturn2011>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.2599</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsNewYorkTaxExemptSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003627_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0568</rr:AnnualReturn2011>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0681</rr:BarChartHighestQuarterlyReturn>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.07</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003630_MemberC000010096_Member" unitRef="pure">0.0572</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003630_MemberC000010096_Member" unitRef="pure">0.0587</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0293</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberMsciAllCountryWorldIndexExUsIndex_Member" unitRef="pure">0.0631</rr:AverageAnnualReturnYear10>
  <rr:RiskNondiversifiedStatus contextRef="Duration_02May2011_01May2012S000032513_Member">The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.</rr:RiskNondiversifiedStatus>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003631_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">0.2094</rr:BarChartHighestQuarterlyReturn>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 09/30/10): 6.81%&lt;br/&gt;Lowest (quarter ended 09/30/11): (4.14)%&lt;br/&gt;&lt;br/&gt;Year-to-date performance (before taxes) through June 30, 2012: 6.54%</rr:BarChartClosingTextBlock>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.0487</rr:AnnualReturn2011>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">The 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&amp;#146;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.1515</rr:BarChartHighestQuarterlyReturn>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000025218_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">The 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. The after-tax figures are shown for one share class only, and would be different for the other share class. Actual after-tax returns depend on an investor&amp;#146;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.0681</rr:BarChartHighestQuarterlyReturn>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000025218_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsCorePlusBondSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 12/31/11): 15.15%&lt;br/&gt;Lowest (quarter ended 09/30/11): (15.29)%&lt;br/&gt;&lt;br/&gt;Year-to-date performance (before taxes) through June 30, 2012: 16.44%</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003634_Member">AVERAGE ANNUAL TOTAL RETURNS FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">Performance numbers for the Series and the S&amp;amp;P 500 Index are calculated from August 27, 1992, the Series&amp;#146; inception date. Performance numbers for the MSCI All Country World Index ex US are calculated from August 31, 1992. &lt;br/&gt;&lt;br/&gt;The 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. The after-tax figures are shown for one share class only and would be different for the other share class. Actual after-tax returns depend on an investor&amp;#146;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.1715</rr:AnnualReturn2002>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.1001</rr:AnnualReturn2011>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003630_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsFinancialServicesSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure">0.088</rr:AnnualReturn2002>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="USD">230</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 id="Item_9" xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure" />
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003633_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PREVIOUS ACTIVATION 10/31/97 TO 2/28/03</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">The 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. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000025218_MemberMsciUsReitIndex_Member">2009-11-10</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003645_MemberC000010131_Member">1999-11-05</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003645_MemberSPFiveHundredIndex_Member">1999-11-05</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003645_MemberSAndPFiveHundredHealthCareIndex_Member">1999-11-05</rr:AverageAnnualReturnInceptionDate>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsInternationalSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member">1999-11-05</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003645_MemberC000010131_Member">1999-11-05</rr:AverageAnnualReturnInceptionDate>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">-0.3689</rr:AnnualReturn2002>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">-0.1031</rr:AnnualReturn2011>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">The 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&amp;#146;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:ExpensesRestatedToReflectCurrent contextRef="Duration_02May2011_01May2012S000025218_Member">Management fees have been restated to reflect contractual changes to the management fees paid by the Series.</rr:ExpensesRestatedToReflectCurrent>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 12/31/02): 29.51%&lt;br/&gt;Lowest (quarter ended 06/30/02): (29.19)%</rr:BarChartClosingTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.2951</rr:BarChartHighestQuarterlyReturn>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">The 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. The after-tax figures are shown for one share class only, and would be different for the other share class. Actual after-tax returns depend on an investor&amp;#146;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003633_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ExpensesRestatedToReflectCurrent contextRef="Duration_02May2011_01May2012S000003630_Member">Management fees have been restated to reflect contractual changes to the management fees paid by the Series.</rr:ExpensesRestatedToReflectCurrent>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003634_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsSmallCapSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003645_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsGlobalFixedIncomeSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.0733</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003626_MemberC000010088_Member" unitRef="pure">0.07</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003626_MemberC000010088_Member" unitRef="pure">0.0637</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0293</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberSPFiveHundredInformationTechnologyIndex_Member" unitRef="pure">0.0225</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003626_MemberSPFiveHundredInformationTechnologyIndex_Member">2000-08-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003626_MemberSPFiveHundredIndex_Member">2000-08-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003626_MemberC000010088_Member">2000-08-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003626_MemberC000010088_Member">2000-08-08</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member">2000-08-08</rr:AverageAnnualReturnInceptionDate>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsCoreBondSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsHighYieldBondSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <dei:DocumentCreationDate contextRef="Duration_02May2011_01May2012">2012-10-19</dei:DocumentCreationDate>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003626_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">The 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. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003626_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0623</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsRealEstateSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="USD">262</rr:ExpenseExampleYear03>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0462</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003638_MemberC000010108_Member" unitRef="pure">0.0457</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003638_MemberC000010108_Member" unitRef="pure">0.0448</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0515</rr:AverageAnnualReturnYear10>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003635_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="USD">192</rr:ExpenseExampleYear03>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series&amp;#146; operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</rr:ExpenseExampleNarrativeTextBlock>
  <rr:StrategyHeading contextRef="Duration_02May2011_01May2012S000003638_Member">Principal Investment Strategies</rr:StrategyHeading>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0822</rr:AnnualReturn2002>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0865</rr:AnnualReturn2011>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 09/30/09): 7.42%&lt;br/&gt;Lowest (quarter ended 12/31/10): (5.86)%</rr:BarChartClosingTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0742</rr:BarChartHighestQuarterlyReturn>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003635_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">The 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&amp;#146;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">Quarterly Returns&lt;br/&gt;Highest (quarter ended 09/30/09): 7.31% &lt;br/&gt;Lowest (quarter ended 12/31/10): (5.52)%</rr:BarChartClosingTextBlock>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0731</rr:BarChartHighestQuarterlyReturn>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0921</rr:AnnualReturn2002>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0824</rr:AnnualReturn2011>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">The 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&amp;#146;s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003638_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0444</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003635_MemberC000010101_Member" unitRef="pure">0.0434</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003635_MemberC000010101_Member" unitRef="pure">0.0428</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member">1994-02-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003638_MemberC000010108_Member">1994-02-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003638_MemberC000010108_Member">1994-02-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003638_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member">1994-02-14</rr:AverageAnnualReturnInceptionDate>
  <rr:PerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003638_Member">AVERAGE ANNUAL TOTAL RETURNS&lt;br/&gt;FOR PERIODS ENDED DECEMBER 31, 2011</rr:PerformanceTableHeading>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02May2011_01May2012S000003635_Member">After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsDiversifiedTaxExemptSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsOhioTaxExemptSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member">1994-02-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003635_MemberC000010101_Member">1994-02-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003635_MemberC000010101_Member">1994-02-14</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_02May2011_01May2012S000003635_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member">1994-02-14</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">This table describes the fees and expenses you may pay if you buy and hold shares of the Series.</rr:ExpenseNarrativeTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsTechnologySeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpensesRestatedToReflectCurrent contextRef="Duration_02May2011_01May2012S000003634_Member">Management fees have been restated to reflect contractual changes to the management fees paid by the Series.</rr:ExpensesRestatedToReflectCurrent>
  <rr:BarChartTableTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAnnualTotalReturnsLifeSciencesSeriesBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AnnualReturn2002 xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure" />
  <rr:RiskNondiversifiedStatus contextRef="Duration_02May2011_01May2012S000025218_Member">The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers and may experience increased volatility due to its investments in those securities.</rr:RiskNondiversifiedStatus>
  <dei:EntityRegistrantName contextRef="Duration_02May2011_01May2012">MANNING &amp; NAPIER FUND, INC /NY/</dei:EntityRegistrantName>
  <dei:DocumentType contextRef="Duration_02May2011_01May2012">Other</dei:DocumentType>
  <dei:EntityCentralIndexKey contextRef="Duration_02May2011_01May2012">0000751173</dei:EntityCentralIndexKey>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.0009</rr:OtherExpensesOverAssets>
  <rr:ProspectusDate contextRef="Duration_02May2011_01May2012">2012-05-01</rr:ProspectusDate>
  <dei:AmendmentFlag contextRef="Duration_02May2011_01May2012">false</dei:AmendmentFlag>
  <rr:ExpensesOverAssets id="Item_10" decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.011</rr:ExpensesOverAssets>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003632_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">-0.1614</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">-0.1703</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">-0.0902</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberMsciAllCountryWorldIndexExUsIndex_MemberClassProspectus_Member" unitRef="pure">-0.1371</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.0784</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.0492</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.0523</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberMsciAllCountryWorldIndexExUsIndex_MemberClassProspectus_Member" unitRef="pure">0.0445</rr:AverageAnnualReturnSinceInception>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003632_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003634_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003630_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003627_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003645_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003634_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000032512_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003630_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003645_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000032512_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003633_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003627_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003626_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.0005</rr:OtherExpensesOverAssets>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000032512_MemberC000100293_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000032512_MemberC000100293_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000032512_MemberC000100293_Member" unitRef="pure">0.0223</rr:ExpensesOverAssets>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003633_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000032513_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.0011</rr:OtherExpensesOverAssets>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000025218_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:OtherExpensesOverAssets id="Item_11" decimals="4" contextRef="Duration_02May2011_01May2012S000032512_MemberC000100293_Member" unitRef="pure">0.0115</rr:OtherExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_12" decimals="4" contextRef="Duration_02May2011_01May2012S000032512_MemberC000100293_Member" unitRef="pure">0.0128</rr:NetExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_13" decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.0112</rr:ExpensesOverAssets>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.2542</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.1133</rr:AnnualReturn2005>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000032513_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.1513</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">-0.4007</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.3912</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.0923</rr:AnnualReturn2010>
  <rr:Component2OtherExpensesOverAssets id="Item_14" decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="pure">0.0016</rr:Component2OtherExpensesOverAssets>
  <rr:Component2OtherExpensesOverAssets id="Item_15" decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.0016</rr:Component2OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="pure">0.0016</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.0041</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="pure">0.0094</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.0119</rr:ExpensesOverAssets>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003626_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003632_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003628_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:NetExpensesOverAssets id="Item_16" decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="pure">0.0088</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets id="Item_17" decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.0113</rr:NetExpensesOverAssets>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000025218_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_18" decimals="4" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure">0.002</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure">0.012</rr:ExpensesOverAssets>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003628_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">0.0013</rr:OtherExpensesOverAssets>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000032513_MemberC000100294_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:ExpensesOverAssets id="Item_19" decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">0.0114</rr:ExpensesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000032513_MemberC000100294_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000032513_MemberC000100294_Member" unitRef="pure">0.0138</rr:ExpensesOverAssets>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003645_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_20" decimals="4" contextRef="Duration_02May2011_01May2012S000032513_MemberC000100294_Member" unitRef="pure">0.0036</rr:OtherExpensesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003628_MemberC000010090_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:NetExpensesOverAssets id="Item_21" decimals="4" contextRef="Duration_02May2011_01May2012S000032513_MemberC000100294_Member" unitRef="pure">0.0122</rr:NetExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.0011</rr:OtherExpensesOverAssets>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003633_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003628_MemberC000010090_Member" unitRef="pure">0.0113</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_22" decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.0112</rr:ExpensesOverAssets>
  <rr:Component2OtherExpensesOverAssets id="Item_23" decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="pure">0.0012</rr:Component2OtherExpensesOverAssets>
  <rr:Component2OtherExpensesOverAssets id="Item_24" decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.0012</rr:Component2OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_25" decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.0037</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_26" decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="pure">0.0012</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_27" decimals="4" contextRef="Duration_02May2011_01May2012S000003628_MemberC000010090_Member" unitRef="pure">0.0013</rr:OtherExpensesOverAssets>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003627_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:ExpensesOverAssets id="Item_28" decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="pure">0.0094</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_29" decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.0119</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_30" decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="pure">0.0088</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_31" decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.0113</rr:ExpensesOverAssets>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003637_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003637_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:Component2OtherExpensesOverAssets id="Item_32" decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="pure">0.0018</rr:Component2OtherExpensesOverAssets>
  <rr:Component2OtherExpensesOverAssets id="Item_33" decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.0018</rr:Component2OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_34" decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="pure">0.0018</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_35" decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.0043</rr:OtherExpensesOverAssets>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003637_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">The Series will invest, under normal circumstances, at least 80% of its net assets in bonds and other financial instruments with economic characteristics similar to bonds. For purposes of this policy, bonds may include government, corporate, and pass-through securities, and mortgage dollar rolls. The corporate bonds may be issued by domestic corporations, foreign entities (i.e., yankee bonds), and/or supranational entities, such as the World Bank. Pass-through securities are generally issued by domestic entities (such as GNMA, FNMA, and FHLMC) and entitle the holders to a pro rata share of the cash flows generated by the instruments underlying the security (mortgages, credit card receivables, car loans, etc.). The Series may invest up to 20% of its assets in below investment grade securities (also referred to as &amp;#147;high yield bonds&amp;#148;) and an additional 20% may be invested in non-U.S. dollar denominated securities, including securities issued by companies located in emerging markets. The Series may purchase shares of exchange-traded funds (ETFs), including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Fund to invest in a particular sector of the market more efficiently than would otherwise be possible.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Maturity and Portfolio Duration &lt;/i&gt;&amp;#151; The Series is not subject to any maturity or duration restrictions but will vary its average dollar weighted portfolio maturity and duration depending on the Advisor&amp;#146;s outlook for yields. For example, the Advisor may invest in longer-term bonds when it expects yields to fall in order to realize gains for the Series. Likewise, the Advisor may invest in shorter-term bonds when it expects yields to rise.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Credit Quality&lt;/i&gt; &amp;#151; The Series will typically invest in investment grade securities, those securities rated BBB or above by S&amp;amp;P or Baa or above by Moody&amp;#146;s (or determined to be of equivalent quality by the Advisor); however, the Series may invest up to 20% of its assets in below investment grade securities, those rated below BBB- by S&amp;amp;P and those rated below Baa3 by Moody&amp;#146;s (or determined to be of equivalent quality by the Advisor).&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Bond Selection Process&lt;/i&gt; &amp;#151; When investing in corporate and pass-through securities, the Advisor attempts to identify sectors, as well as individual securities within those sectors, that offer yields and credit/prepayment spreads sufficient to compensate the Series for the risks specific to a given sector or security. Credit spreads are a measure of the difference between corporate bonds&amp;#146; yields to maturity and those of U.S. Treasury securities with similar maturities; this difference compensates investors for the credit risk inherent in corporate bonds. Prepayment spreads quantify the additional yield paid by mortgage-backed bonds relative to U.S. Treasury securities to compensate investors for the risk that mortgage-backed securities' prepayments will vary over time.&lt;br/&gt;&lt;br/&gt;The Advisor may also invest in U.S. Treasury and U.S. Agency securities when it believes they are an attractive investment option relative to corporate and pass-through securities.&lt;br/&gt;&lt;br/&gt;In analyzing the relative attractiveness of sectors and/or individual securities, the Advisor considers:&lt;ul type="square"&gt;&lt;li&gt;The relevant economic conditions and sector trends.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The interest rate sensitivities of the particular sectors and securities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The yield differentials across sectors, credit qualities, pass-through security types, and maturities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;"Bottom-up" factors such as issuer-specific credit metrics for corporate bonds and coupon, prepayment, and convexity components (which reflect changing interest rate sensitivities) of pass-through securities.&lt;/li&gt;&lt;/ul&gt;The Series may buy and sell portfolio securities actively. If it does, its portfolio turnover rate and transaction costs will rise, which may lower fund performance and may increase the likelihood of capital gain distributions.</rr:StrategyNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003637_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003637_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_02May2011_01May2012S000032512_Member">April 30, 2013</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.0013</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_36" decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.0114</rr:ExpensesOverAssets>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003628_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003630_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">The Series will invest, under normal circumstances, at least 80% of its net assets in fixed income securities. These securities may be issued by issuers located anywhere in the world, including emerging markets. The Series&amp;#146; portfolio will consist primarily of government debt securities and of investment grade corporate debt securities, bank debt, securitized/collateralized instruments, and money market securities. The Series may also invest a substantial portion of its assets in high-yield, high-risk bonds, commonly called junk bonds.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Maturity and Portfolio Duration&lt;/i&gt; &amp;#151; The Series is not subject to any maturity or duration restrictions but will vary its average dollar-weighted portfolio maturity and duration depending on the Advisor&amp;#146;s outlook for yields and currency fluctuations. For example, the Advisor may invest in longer-term bonds when it expects yields to fall in a given country in an attempt to realize gains for the Series. Likewise, the Advisor may invest in shorter-term bonds when it expects yields to rise or the currency to appreciate in a given country.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Credit Quality &lt;/i&gt;&amp;#151; The Series invests primarily in investment grade securities but may invest up to 20% of its assets in lower quality bonds, commonly known as &amp;#147;junk bonds,&amp;#148; those rated below BBB-by S&amp;amp;P or Baa3 by Moody&amp;#146;s, or determined to be of equivalent quality by the Advisor.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Bond Selection Process&lt;/i&gt; &amp;#151; The Advisor attempts to identify bond market sectors and individual securities that offer yields sufficient for the risks specific to the sector or security. In analyzing the relative attractiveness of countries, sectors, and individual securities, the Advisor considers:&lt;ul type="square"&gt;&lt;li&gt;Relative economic conditions of each country.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Interest rate sensitivity of particular countries, sectors, and securities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Differences in yields offered by bonds of different sectors, credit quality, or maturities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The impact of currency changes on the sectors.&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000032512_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">The Series will invest, under normal circumstances, at least 80% of its net assets in securities of companies in the financial services industry. These companies include those directly engaged in providing financial services as well as in industries serving and/or supplying the financial services industry. Examples of the companies in which the Series may invest include those in the following areas: banks, thrift institutions, insurance companies, investment banks, brokerage companies, asset managers, specialty finance companies, real estate investment trusts (REITs), and service providers to those companies, such as those that provide distribution support, back office services, software, and information services. A company will be considered appropriate for investment if, (i) as determined by the Advisor, at least 50% of its assets, revenues or net income is derived from the financial services industry, or (ii) it has been classified (such as in the Global Industry Standard Classification system) in the financial services industry by a governmental authority, index provider, rating agency or similar third-party.&lt;br/&gt;&lt;br/&gt;The Series may invest in U.S. and foreign companies, including those in emerging markets, American Depository Receipts (ADRs) and other U.S. dollar denominated securities of foreign issuers. The Series may invest in stocks of small, large or mid-size companies. The Series may purchase shares of exchange-traded funds (ETFs), including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Series to invest in a particular sector of the market more efficiently than would otherwise be possible.&lt;br/&gt;&lt;br/&gt;The Advisor uses a &amp;#147;bottom-up&amp;#148; strategy, focusing on individual security selection. The Advisor analyzes factors such as the management, financial condition, and market position of individual companies to select companies in the financial services sector that it believes will make attractive long-term investments. The Advisor looks for one or more of the following characteristics:&lt;ul type="square"&gt;&lt;li&gt;Strong strategic profiles (e.g., strong market position, benefits from technology, market share gains in a mature market and high barriers to entry).&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies well-positioned to benefit from an anticipated upturn in an industry sub-sector due to sharply reduced competition and improving demand.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies trading at very low valuations relative to fundamental or break-up value.&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">The value of your investment will fluctuate in response to changes in interest rates, credit spreads, and prepayment spreads. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;Interest rates rise, credit spreads widen, and/or prepayment spreads widen. These events alone or in combination can cause bond prices to fall and reduce the value of the Series' portfolio. Longer-term bonds will experience greater fluctuations than shorter-term bonds given their greater sensitivity to interest rate changes.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The issuer of a corporate bond owned by the Series defaults on its obligation to pay principal and/or interest or has its credit rating downgraded; this risk is greater for lower quality bonds, which include bonds rated lower than BBB by S&amp;amp;P or Baa by Moody's.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Market volatility and/or prepayment spreads change to such a degree that prepayment uncertainty/risks are reassessed; the greater the uncertainty/risk, the wider the requisite prepayment spread.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor's judgment about the attractiveness, relative value, or potential appreciation of a particular sector or security prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition to the risks discussed above, the Series is subject to additional risks due its ability to invest up to 20% of its assets in high-yield bonds:&lt;ul type="square"&gt;&lt;li&gt;High yield bonds may underperform other sectors of the bond market, or the market as a whole.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The performance of high yield bonds tends to be more volatile than that of other sectors of the bond market.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Given the total size of the high yield bond market, high yield bonds can be less liquid than investment grade securities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Series' investments in high yield bonds will subject it to a substantial degree of credit risk.&lt;/li&gt;&lt;/ul&gt;Since high yield bonds are lower-rated corporate or government bonds, they pay higher income than investment grade bonds to compensate for the higher risk assumed by their investors. These bonds are typically issued by companies that are restructuring, carry higher debt burdens, or are smaller and/or less established than investment grade companies. In addition, foreign countries characterized by political or economic instability may issue bonds that carry below investment grade credit ratings. Because of the types of issuers of these bonds, they carry more risk of default than higher rated bonds.&lt;br/&gt;&lt;br/&gt;The Series is also subject to additional risks given its ability to invest up to 20% of its assets in non-U.S. dollar denominated (i.e., foreign) bonds. These risks include:&lt;ul type="square"&gt;&lt;li&gt;The prices of foreign bonds may at times move in a different direction than the prices of bonds issued in the United States.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Because such investments are denominated in the currencies of the countries in which the issuers are located, the value of the Series may be affected by changes in exchange rates between those currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor's attempt to manage the currency risk described above may not accurately predict movements in currency exchange rates, which could cause the Series to sustain losses.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Investments in emerging market countries can be more volatile than investments in more developed countries.&lt;/li&gt;&lt;/ul&gt;The Series' mortgage dollar rolls could lose money if the price of the mortgage-backed securities sold falls below the agreed upon repurchase price, or if the counterparty is unable to honor the agreement.&lt;br/&gt;&lt;br/&gt;The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities.&lt;br/&gt;&lt;br/&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series' management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series' shares. Redemptions by these institutions or individuals in the Series may impact the Series' liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series' portfolio turnover rate and transaction costs to rise, which may negatively affect the Series' performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series' investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_02May2011_01May2012S000032513_Member">April 30, 2013</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0011</rr:OtherExpensesOverAssets>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">The Series invests primarily in common stocks of foreign companies, which may be located both in developed and in emerging markets. The Series may also invest in American Depository Receipts (ADRs) and other U.S. dollar denominated securities of foreign issuers.&lt;br/&gt;&lt;br/&gt;The Advisor examines economic trends and industry-specific factors to identify investment opportunities, such as those being created by economic and political changes taking place around the world. This approach is often called a &amp;#147;top-down&amp;#148; strategy. The Series is different from many stock funds because the Advisor&amp;#146;s primary focus is not on individual stock selection. Rather, the Advisor seeks to identify broad trends that cut across countries or issuers and then purchases one or more stocks representing the investment trend in an attempt to benefit from that trend. For example, the Advisor sought to take advantage of the economic environment and the potential for corporate restructuring in Europe by investing in stocks of companies from a number of European countries.&lt;br/&gt;&lt;br/&gt;The Series may invest in stocks of small, large, or mid-size companies. The Series may purchase shares of exchange-traded funds (ETFs), including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Series to invest in a particular sector of the market more efficiently than would otherwise be possible. The Series may invest in cash and cash equivalents for defensive purposes or when seeking other investment opportunities.&lt;br/&gt;&lt;br/&gt;The Series may, but is not required to, undertake hedging activities and may invest in forward foreign currency contracts to hedge currency risks associated with the purchase of individual securities denominated in a foreign currency.</rr:StrategyNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003632_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003632_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">The Series will invest, under normal circumstances, at least 80% of its net assets in securities of companies involved in the life sciences industry. Examples of the companies in which the Series may invest include those in the following areas: pharmaceuticals, biotechnology, medical products and supplies, health care services, and environmental services. A company will be considered appropriate for investment if, (i) as determined by the Advisor, at least 50% of its assets, revenues or net income is derived from the life sciences industry, or (ii) it has been classified (such as in the Global Industry Standard Classification system) in the life sciences industry by a governmental authority, index provider, rating agency or similar third party.&lt;br /&gt;&lt;br /&gt;The Series may invest in U.S. and foreign stocks, including those in emerging markets, American Depository Receipts (ADRs) and other U.S. dollar denominated securities of foreign issuers. The Series may invest in stocks of small, large, or mid-size companies. The Series may purchase shares of exchange-traded funds (ETFs) to gain exposure to a particular portion of the market while awaiting an opportunity to purchase securities directly. When the Advisor wishes to purchase or sell a security at a specified price, it may seek to generate income for the Series by writing (selling) options on the underlying security.&lt;br /&gt;&lt;br /&gt;The Advisor uses in-depth analysis to identify trends within the life sciences sector and then uses a &amp;#147;bottom-up&amp;#148; strategy, focusing on individual security selection to choose stocks. The Advisor analyzes factors such as the management, financial condition, and market position of individual companies to select companies that it believes will make attractive long-term investments. In selecting individual securities, the Advisor uses fundamental analysis and looks for one or more of the following characteristics:&lt;ul type="square"&gt;&lt;li&gt;Strong strategic profiles (e.g., strong market position, benefits from technology, market share gains in a mature market and high barriers to entry).&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies well-positioned to benefit from an anticipated upturn in an industry sub-sector due to sharply reduced competition and improving demand.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies trading at very low valuations relative to fundamental or break-up value.&lt;/li&gt;&lt;/ul&gt;The Series may buy and sell portfolio securities actively. If it does, its portfolio turnover rate and transaction costs will rise, which may lower the Series&amp;#146; performance and increase the likelihood of capital gain distributions.</rr:StrategyNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003634_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003632_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003628_Member">The Series will invest, under normal circumstances, at least 80% of its net assets in securities of companies in commodity-based industries. Examples of companies in which the Series may invest include (i) those directly engaged in the production of commodities such as minerals, metals, agricultural commodities, chemicals, oil and gas, other energy or other natural resources, and (ii) companies that use commodities extensively in their products, provide services to commodities-based industries, or are otherwise affected by commodities. A company will be considered appropriate for investment if, (i) as determined by the Advisor, at least 50% of its assets, revenues or net income is derived from one or more commodities-based industries, or (ii) it has been classified (such as in the Global Industry Standard Classification system) in one or more commodity-based industries by a governmental authority, index provider, rating agency or similar third party.&lt;br/&gt;&lt;br/&gt;The Series may invest in U.S. and foreign stocks, including those in emerging markets, American Depository Receipts (ADRs), and other U.S. dollar denominated securities of foreign issuers.&lt;br/&gt;&lt;br/&gt;The Advisor uses a &amp;#147;bottom-up&amp;#148; strategy, focusing on individual security selection. The Advisor seeks to select securities of companies that will benefit from changes in the prices of the underlying commodities. The Advisor looks for one or more of the following characteristics:&lt;ul type="square"&gt;&lt;li&gt;Strong strategic profiles (e.g., strong market position, benefits from technology, market share gains in a mature market and high barriers to entry).&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies well-positioned to benefit from an anticipated upturn in an industry sub-sector due to sharply reduced competition and improving demand.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies trading at very low valuations relative to fundamental or break-up value.&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003632_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0283</rr:AnnualReturn2004>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000032512_Member">The Series will normally invest at least 80% of its net assets in securities of emerging market companies. The Series considers a company to be an emerging market company if it meets one or more of the following criteria: (i) its principal securities trading market is in an emerging market country, or (ii) alone or on a consolidated based it derives 50% or more of its annual revenue from goods produced, sales made or services performed in emerging market countries. Emerging market countries can include every nation in the world except the United States, Canada, Japan, Australia, New Zealand and most nations located in Western Europe. The Advisor will base determinations as to a company&amp;#146;s eligibility on publicly available information and inquiries made to the company. &lt;br/&gt;&lt;br/&gt;There are no prescribed limits on the geographic distribution of the Series&amp;#146; investments, and the Series may focus its investments in only a few countries. &lt;br/&gt;&lt;br/&gt;The Series will invest primarily in common stocks and may also invest in American Depository Receipts (ADRs) and other U.S. dollar and non-U.S. dollar denominated equity securities. The Series may invest in stocks of small, large, or mid-size companies. The Series may also purchase shares of exchange-traded funds (ETFs), including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Series to invest in a particular sector of the market more efficiently than would otherwise be possible.&lt;br/&gt;&lt;br/&gt;The Series may, but is not required to, undertake hedging activities and may invest in forward foreign currency contracts to hedge currency risks associated with the purchase of individual securities denominated in a foreign currency.&lt;br/&gt;&lt;br/&gt;The Advisor primarily uses a &amp;#8220;bottom-up&amp;#8221; strategy, focusing on individual security selection to choose stocks from emerging market companies. The Advisor analyzes factors such as the management, financial condition, and market position of individual companies to select companies that it believes will make attractive long-term investments. In selecting individual securities, the Advisor uses fundamental analysis and looks for one or more of the following characteristics:&lt;ul type="square"&gt;&lt;li&gt;Strong strategic profiles (e.g., strong market position, benefits from technology, market share gains in a mature market and high barriers to entry).&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies well-positioned to benefit from an anticipated upturn in an industry sub-sector due to sharply reduced competition and improving demand.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies trading at very low valuations relative to fundamental or break-up value.&lt;/li&gt;&lt;/ul&gt;The Advisor may also select securities for the portfolio using a &amp;#8220;top down&amp;#8221; strategy, which examines economic trends and industry-specific factors to identify investment opportunities, such as those being created by economic and political changes taking place around the world.</rr:StrategyNarrativeTextBlock>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0233</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0344</rr:AnnualReturn2007>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000032513_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">-0.0237</rr:AnnualReturn2008>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000025218_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.1246</rr:AnnualReturn2009>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.0434</rr:AnnualReturn2007>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0032</rr:AnnualReturn2010>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.0124</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.1435</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.1018</rr:AnnualReturn2010>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">The Series invests primarily in common stocks of companies from outside the United States. The Series may also invest in American Depository Receipts (ADRs) and other U.S. dollar denominated securities of foreign issuers. The Series may invest in stocks of small, large, or mid-size companies both in developed countries and in emerging market countries.&lt;br/&gt;&lt;br/&gt;The Series may purchase shares of exchange-traded funds (ETFs), including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Series to invest in a particular sector of the market more efficiently than would otherwise be possible.&lt;br/&gt;&lt;br/&gt;The Series may, but is not required to, undertake hedging activities and may invest in forward foreign currency contracts to hedge currency risks associated with the purchase of individual securities denominated in a foreign currency. &lt;br/&gt;&lt;br/&gt;The Advisor uses a &amp;#147;bottom-up&amp;#148; strategy, focusing on individual security selection to choose stocks from companies around the world. &lt;br/&gt;&lt;br/&gt;The Advisor analyzes factors such as the management, financial condition, and market position of individual companies to select companies that it believes will make attractive long-term investments. In selecting individual securities, the Advisor uses fundamental analysis and looks for one or more of the following characteristics: &lt;ul type="square"&gt;&lt;li&gt;Strong strategic profiles (e.g., strong market position, benefits from technology, market share gains in a mature market and high barriers to entry). &lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies well-positioned to benefit from an anticipated upturn in an industry sub-sector due to sharply reduced competition and improving demand.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies trading at very low valuations relative to fundamental or break-up value. &lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0837</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003637_MemberC000010107_Member" unitRef="pure">0.0816</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003637_MemberC000010107_Member" unitRef="pure">0.0664</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0758</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0452</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003637_MemberC000010107_Member" unitRef="pure">0.0447</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003637_MemberC000010107_Member" unitRef="pure">0.0443</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0527</rr:AverageAnnualReturnSinceInception>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003626_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member">2008-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">The Series will invest, under normal circumstances, at least 80% of its net assets in securities of companies with small market capitalizations. The Series defines a small market capitalization company as a company with a market capitalization of less than $3 billion at the time of purchase. The Series may invest in U.S. and foreign stocks, including those in emerging markets, American Depository Receipts (ADRs) and other U.S. dollar denominated securities of foreign issuers.&lt;br/&gt;&lt;br/&gt;The Series may purchase shares of exchange-traded funds (ETFs), including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Series to invest in a particular sector of the market more efficiently than would otherwise be possible.&lt;br/&gt;&lt;br/&gt;The Advisor uses a &amp;#8220;bottom-up&amp;#8221; strategy, focusing on individual security selection. The Advisor analyzes factors such as the management, financial condition, and market position of individual companies to select small companies that it believes will make attractive long-term investments. In selecting individual securities, the Advisor uses fundamental analysis and looks for one or more of the following characteristics:&lt;ul type="square"&gt;&lt;li&gt;Strong strategic profiles (e.g., strong market position, benefits from technology, market share gains in a mature market and high barriers to entry).&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies well-positioned to benefit from an anticipated upturn in an industry sub-sector due to sharply reduced competition and improving demand.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies trading at very low valuations relative to fundamental or break-up value.&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">As with any stock fund, the value of your investment will fluctuate in response to stock market movements. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;The U.S. and/or foreign stock markets go down.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;An adverse event, such as an unfavorable earnings report, depresses the value of one or more of the Series&amp;#146; portfolio holdings.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s judgments about the attractiveness, relative value or potential appreciation of a security or strategy prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition to the general risks of stock funds, the Series has special risks due to its concentration in securities of issuers in the financial services industry. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of financial services companies may underperform other sectors or the market as a whole.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of financial services companies may experience greater price volatility than other types of common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Financial services stocks may be particularly sensitive to changes in interest rates and other economic events and legislative and regulatory changes, including increased regulatory scrutiny.&lt;/li&gt;&lt;/ul&gt;Because the Series may invest in foreign stocks and ADRs, it is subject to the following additional risks:&lt;ul type="square"&gt;&lt;li&gt;The prices of foreign common stocks may, at times, move in a different direction than the prices of U.S. common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Because the Series&amp;#146; investments in foreign securities may be denominated in the currencies of the countries in which they are located, the value of the Series may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The Series may also have special risks due to its investments in emerging market countries. In addition to the risks discussed above relating to investments in foreign companies located in developed countries, the Series&amp;#146; investments in emerging market countries are subject to the following risks:&lt;ul type="square"&gt;&lt;li&gt;Emerging markets may be more likely to experience political turmoil or rapid changes in market or economic conditions than more developed countries.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Emerging market countries often have less uniformity in accounting and reporting requirements and unreliable securities valuation.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;It is sometimes difficult to obtain and enforce court judgments in emerging market countries and there is often a greater potential for nationalization and/or expropriation of assets by the government of an emerging market country.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;There will tend to be an increased risk of price volatility associated with the Series&amp;#146; investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The Series may also have special risks due to its investments in stocks of small and mid-size companies. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be subject to more abrupt or erratic market movements than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be less marketable than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;Small and mid-size companies may have limited product lines, markets, or financial resources, and they may depend on a small management group. As a result, they fail more often than larger companies.&lt;br/&gt;&lt;br/&gt;The Series&amp;#146; investments in REITs will be subject to the risks associated with the direct ownership of real estate. Risks commonly associated with the direct ownership of real estate include fluctuations in the value of underlying properties, defaults by borrowers or tenants, changes in interest rates and risks related to general or local economic conditions.&lt;br/&gt;&lt;br/&gt;The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities.&lt;br/&gt;&lt;br/&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#146; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#146; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#146; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#146; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#146; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series&amp;#146; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">As with any bond fund, the value of your investment will fluctuate in response to interest rate movements. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;Interest rates rise, credit spreads widen, and/or prepayment spreads widen. These events alone or in combination can cause bond prices to fall and reduce the value of the Series&amp;#146; portfolio. Longer-term bonds will experience greater fluctuations than shorter-term bonds given their greater sensitivity to interest rate changes.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;  The issuer of a bond owned by the Series defaults on its obligation to pay principal and/or interest or has its credit rating downgraded. This risk is higher for lower quality bonds, which include bonds rated lower than BBB by S&amp;amp;P or Baa by Moody's.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Market volatility and/or prepayment spreads change to such a degree that prepayment uncertainty/risks are reassessed; the greater the uncertainty/risk, the wider the requisite prepayment spread.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor's judgments about the attractiveness, relative value, or potential appreciation of a particular sector, security, or hedging strategy prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;The Series is subject to additional risks due to the large portion of the portfolio invested in foreign bonds. These risks include:&lt;ul type="square"&gt;&lt;li&gt;The prices of foreign bonds may, at times, move in a different direction than the prices of bonds issued in the United States.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt; Because much of the Series' investments may be denominated in the currencies of the countries in which the issuers are located, the value of the Series may be affected by changes in exchange rates between those currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor's attempt to manage the currency risk described above may not accurately predict movements in currency exchange rates, which could cause the Series to sustain losses.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Investments in emerging market countries may be more volatile than investments in more developed markets.&lt;/li&gt;&lt;/ul&gt;Because the Series may invest up to 20% of its assets in lower quality bonds, it is subject to the following additional risks:&lt;ul type="square"&gt;&lt;li&gt;  High yield bonds may underperform other sectors of the bond market, or the market as a whole.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The performance of high yield bonds tends to be more volatile than that of other sectors of the bond market.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Given the total size of the high yield bond market, these bonds can be less liquid than investment grade securities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Series' investments in high yield bonds will subject it to a substantial degree of credit risk because the prospect for repayment of principal and interest of many of these bonds is speculative.&lt;/li&gt;&lt;/ul&gt;Since high yield bonds are lower-rated corporate or government bonds, they pay higher income than investment grade bonds to compensate for the higher risk assumed by their investors. These bonds are typically issued by companies that are restructuring, carry higher debt burdens, or are smaller and/or less established than investment grade companies. In addition, foreign countries characterized by political or economic instability may issue bonds that carry below investment grade credit ratings. Because of the types of issuers of these bonds, they carry more risk of default than higher rated bonds.&lt;br/&gt;&lt;br/&gt;The Series' investments in mortgage-backed and asset-backed securities may subject it to the following additional risks:&lt;ul type="square"&gt;&lt;li&gt;Mortgage-backed securities are affected by, among other things, interest rate changes and the possibility of prepayment of the underlying mortgage loans. Mortgage-backed securities are also subject to the risk that underlying borrowers will be unable to meet their obligations.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Payment of principal and interest on asset-backed securities is dependent largely on the cash flows generated by the assets backing the securities, and asset-backed securities may not have the benefit of any security interest in the related assets.&lt;/li&gt;&lt;/ul&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series' management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series' shares. Redemptions by these institutions or individuals in the Series may impact the Series' liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series' portfolio turnover rate and transaction costs to rise, which may negatively affect the Series' performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series' investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003627_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">As with any stock fund, the value of your investment will fluctuate in response to stock market movements. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;U.S. and/or foreign stock markets go down.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Small company stocks go down in value or underperform larger company stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;An adverse event, such as an unfavorable earnings report, depresses the value of one or more of the Series&amp;#8217; portfolio holdings.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#8217;s judgments about the attractiveness, relative value or potential appreciation of a security or strategy prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition to the general risks of stock funds, the Series has special risks due to its focus on small company stocks. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of small companies may be subject to more abrupt or erratic market movements than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of small companies may be less marketable than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Small companies may have limited product lines, markets, or financial resources, and they may depend on a small management group. As a result, small companies fail more often than larger companies.&lt;/li&gt;&lt;/ul&gt;Because the Series may invest in foreign stocks and ADRs, it is subject to the following additional risks:&lt;ul type="square"&gt;&lt;li&gt;The prices of foreign common stocks may, at times, move in a different direction than the prices of U.S. common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Because the Series&amp;#8217; investments in foreign securities may be denominated in the currencies of the countries in which they are located, the value of the Series may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The Series may also have special risks due to its investments in emerging market countries. In addition to the risks discussed above relating to investments in foreign companies located in developed countries, the Series&amp;#8217; investments in emerging market countries are subject to the following risks:&lt;ul type="square"&gt;&lt;li&gt;Emerging markets may be more likely to experience political turmoil or rapid changes in market or economic conditions than more developed countries.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Emerging market countries often have less uniformity in accounting and reporting requirements and unreliable securities valuation.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;It is sometimes difficult to obtain and enforce court judgments in emerging market countries and there is often a greater potential for nationalization and/or expropriation of assets by the government of an emerging market country.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;There will tend to be an increased risk of price volatility associated with the Series&amp;#8217; investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities.&lt;br/&gt;&lt;br/&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#8217; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#8217; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#8217; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#8217; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#8217; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series&amp;#8217; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.0491</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003632_MemberC000010098_Member" unitRef="pure">0.028</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003632_MemberC000010098_Member" unitRef="pure">0.0373</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberBankOfAmericaMerrillLynchUsCorporateGovernmentAndMortgageIndex_Member" unitRef="pure">0.0788</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.0598</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003632_MemberC000010098_Member" unitRef="pure">0.0434</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003632_MemberC000010098_Member" unitRef="pure">0.042</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberBankOfAmericaMerrillLynchUsCorporateGovernmentAndMortgageIndex_Member" unitRef="pure">0.0585</rr:AverageAnnualReturnSinceInception>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">The Series seeks to provide a high level of long-term total return, which is a combination of income and capital appreciation. The Series will invest, under normal circumstances, at least 80% of its net assets in bonds that are rated below investment grade (junk bonds) and other securities, principally exchange-traded funds (ETFs), that are designed to track the performance of non-investment grade securities. These bonds may be issued by U.S. and foreign corporations and governments, including those in emerging markets. The Series may also invest in securities of other investment companies, such as open-end or closed-end management investment companies.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Maturity and Portfolio Duration&lt;/i&gt; &amp;#151; The Series is not subject to any maturity or duration restrictions but will vary its average dollar weighted portfolio maturity and duration depending on the Advisor&amp;#146;s outlook for yields. For example, the Advisor may invest in longer-term bonds when it expects yields to fall in order to realize gains for the Series. Likewise, the Advisor may invest in shorter-term bonds when it expects yields to rise.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Credit Quality&lt;/i&gt; &amp;#151; The Series will invest primarily in non-investment grade securities, those rated below BBB- by S&amp;amp;P or Baa3 by Moody&amp;#146;s, or determined to be of equivalent quality by the Advisor. The Series may also invest, to a limited extent, in investment grade securities when the Advisor considers their &amp;#147;credit spreads&amp;#148; (i.e., the difference between the bonds&amp;#146; yields to maturity and those of U.S. Treasury bonds with similar maturities) to be attractive. The Series may invest in securities with any rating, including those that have defaulted, are not rated, or have had their rating withdrawn.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Bond Selection Process&lt;/i&gt; &amp;#151; The Advisor attempts to identify high-yield corporate and government sectors, as well as individual securities, that offer yields and credit spreads sufficient for the risks specific to a given sector or security. In analyzing the relative attractiveness of sectors and/or individual securities, the Advisor considers:&lt;ul type="square"&gt;&lt;li&gt;The relevant economic conditions and sector trends.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The interest rate sensitivities of the particular sectors and securities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The yield differentials across sectors, credit qualities, and maturities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;&amp;#147;Bottom-up&amp;#148; factors such as an issuer&amp;#146;s financial status, market position, and managerial expertise.&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003633_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003627_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">The Series will invest, under normal circumstances, at least 80% of its net assets in securities of companies that are principally engaged in the real estate industry. These companies include those directly engaged in the real estate industry as well as in industries serving and/or related to the real estate industry. A company will be considered eligible for investment if, as determined by the Advisor, (i) at least 50% of its assets, revenues or net income is derived from the ownership, leasing, construction, management, development, financing or sale of residential, commercial or industrial real estate or (ii) it has at least 50% of the value of its assets invested in residential, commercial or industrial real estate. Examples of companies in which the Series may invest include those in the following areas: real estate investment trusts (REITs), real estate operating companies (REOCs), real estate developers and brokers, building suppliers, and mortgage lenders.&lt;br/&gt;&lt;br/&gt;The Series may invest in common stocks, convertible securities and other equity securities, principally ETFs (defined below) and preferred stocks, and debt securities. The Series&amp;#146; investment in debt securities is subject to a limit of 20% of the Series&amp;#146; assets (measured at the time of purchase). The Series will typically invest in investment grade debt securities, those securities rated BBB or above by S&amp;amp;P or Baa or above by Moody&amp;#146;s (or determined to be of equivalent quality by the Advisor); however, the Series may invest up to 5% of its assets (measured at the time of purchase) in below investment grade debt securities (junk bonds), those rated below BBB-by S&amp;amp;P and those rated below Baa3 by Moody&amp;#146;s (or determined to be of equivalent quality by the Advisor). The Series&amp;#146; investments in debt securities are not subject to any restrictions on maturity or duration. The Series may invest in foreign companies, including companies located in emerging market countries. The Series&amp;#146; investments in American Depository Receipts (ADRs) are not considered investments in foreign securities. The Series may invest in securities of small, large or mid-size companies.&lt;br/&gt;&lt;br/&gt;The Series may purchase shares of exchange-traded funds (ETFs), including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Series to invest in a particular sector of the market more efficiently than would otherwise be possible.&lt;br/&gt;&lt;br/&gt;The Advisor uses a &amp;#147;bottom-up&amp;#148; strategy, focusing on individual security selection. The Advisor analyzes factors such as the management, financial condition, and market position of individual companies to select companies in the real estate industry that it believes will make attractive long-term investments. The Advisor looks for one or more of the following characteristics:&lt;ul type="square"&gt;&lt;li&gt;Strong strategic profiles (e.g., strong market position, benefits from technology, market share gains in a mature market and high barriers to entry).&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies well-positioned to benefit from an anticipated upturn in an industry sub-sector due to sharply reduced competition and improving demand.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies trading at very low valuations relative to fundamental or break-up value.&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003633_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003633_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000032513_Member">In pursuit of its goal, the Series will normally invest at least 80% of its net assets in equity securities. The Series may invest in stocks of U.S. and foreign issuers, including those in emerging markets.&lt;br/&gt;&lt;br/&gt;In addition to common stocks, the Series may also invest in American Depository Receipts (ADRs) and may invest in U.S. dollar and non-U.S. dollar denominated securities of foreign issuers. The Series may invest in stocks of small, large, or mid-size companies. The Series may also purchase shares of exchange-traded funds (ETFs), including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Series to invest in a particular sector of the market more efficiently than would otherwise be possible.&lt;br/&gt;&lt;br/&gt;The Series may also invest up to 20% of its net assets in fixed income securities for defensive purposes or as part of its strategy to benefit opportunistically from an inflationary environment. The Series may invest in fixed income securities of any type, including those issued by the U.S. Government and its agencies and instrumentalities, foreign governments and their agencies and instrumentalities and U.S. and foreign corporations. The Series is not subject to any restrictions on maturity or duration. The Series may invest up to 5% of its assets in debt securities rated below investment grade.&lt;br/&gt;&lt;br/&gt;When the Advisor wishes to purchase or sell a security at a specified price, it may seek to generate additional gains for the Series by writing (selling) options on the underlying security.&lt;br/&gt;&lt;br/&gt;The Series may, but is not required to, undertake hedging activities and may invest in forward foreign currency contracts to hedge currency risks associated with the purchase of individual securities denominated in a foreign currency.&lt;br/&gt;&lt;br/&gt;There are no prescribed limits on the geographic distribution of the Series' investments, and the Series may focus its investments in only a few countries.&lt;br/&gt;&lt;br/&gt;In selecting individual securities, the Advisor first develops inflation outlooks and then identifies industries that it expects to be the beneficiaries of higher prices. Within those industries, the Advisor chooses individual equity holdings by looking for one or more of the following characteristics:&lt;ul type="square"&gt;&lt;li&gt;Companies with products expected to benefit from inflation caused by structural supply and demand imbalances.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies with resilient growth and margins in an inflationary environment supported by less price sensitive demand and robust pricing power.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies with sustainable competitive advantages, such as those that provide an efficiency or substitute for an inflationary good.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies that may be beneficiaries of post-inflation price declines during certain phases of the industry's supply/demand cycle.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies with undervalued assets that the Advisor expects to appreciate in an inflationary environment.&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003633_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003637_Member">you could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003637_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">As with any stock fund, the value of your investment will fluctuate in response to stock market movements. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;Foreign and/or U.S. stock markets go down.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;An adverse event, such as an unfavorable earnings report, depresses the value of one or more of the Series&amp;#146; portfolio holdings.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s judgments about the attractiveness, relative value or potential appreciation of a strategy or security prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition to the general risks of stock funds, the Series has special risks due to its focus on foreign stocks. These risks include:&lt;ul type="square"&gt;&lt;li&gt;The prices of foreign common stocks may, at times, move in a different direction than the prices of U.S. common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Because the Series&amp;#146; investments are usually denominated in the currencies of the countries in which they are located, the value of the Series may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s attempt to manage the currency risk described above may not accurately predict movements in currency exchange rates, which could cause the Series to sustain losses.&lt;/li&gt;&lt;/ul&gt;The Series may also have special risks due to its investments in emerging market countries. In addition to the risks discussed above relating to investments in foreign companies located in developed countries, the Series&amp;#146; investments in emerging market countries are subject to the following risks:&lt;ul type="square"&gt;&lt;li&gt;Emerging markets may be more likely to experience political turmoil or rapid changes in market or economic conditions than more developed countries.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Emerging market countries often have less uniformity in accounting and reporting requirements and unreliable securities valuation.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;It is sometimes difficult to obtain and enforce court judgments in emerging market countries and there is often a greater potential for nationalization and/or expropriation of assets by the government of an emerging market country.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;There will tend to be an increased risk of price volatility associated with the Series&amp;#146; investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The Series may also have special risks due to its investments in stocks of small and mid-size companies. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be subject to more abrupt or erratic market movements than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be less marketable than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Small and mid-size companies may have limited product lines, markets, or financial resources, and they may depend on a small management group. As a result, they fail more often than larger companies.&lt;/li&gt;&lt;/ul&gt;The Series is subject to the following risks due to its ability to invest in forward contracts: &lt;ul type="square"&gt;&lt;li&gt;Forwards, like all derivatives, can be extremely sensitive to changes in the market value of the underlying investment, and changes in the value of a forward contract may not correlate perfectly with the underlying investment.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Series may not be able to receive amounts payable to it under its forward contracts as quickly as it may be able to sell or otherwise obtain payments from other investments, so the Series&amp;#146; investments in such contracts may not be as liquid as the Series&amp;#146; other investments.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Series&amp;#146; use of forwards is also subject to the risk that the counterparty to the forward contract will default or otherwise become unable to honor its obligation to the Series.&lt;/li&gt;&lt;/ul&gt;The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities.&lt;br/&gt;&lt;br/&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#146; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#146; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#146; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#146; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#146; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series&amp;#146; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">-0.1746</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">-0.4298</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">0.1054</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">0.0656</rr:AnnualReturn2010>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">As with any stock fund, the value of your investment will fluctuate in response to stock market movements. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:    &lt;ul type="square"&gt;&lt;li&gt;Foreign and/or U.S. stock markets go down. &lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;An adverse event, such as an unfavorable earnings report, depresses the value of one or more of the Series&amp;#146; portfolio holdings. &lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s judgments about the attractiveness, relative value or potential appreciation of a strategy or security prove to be incorrect. &lt;/li&gt;&lt;/ul&gt;     In addition to the general risks of stock funds, the Series has special risks due to its focus on foreign stocks. These risks include:   &lt;ul type="square"&gt;&lt;li&gt;The prices of foreign common stocks may, at times, move in a different direction than the prices of U.S. common stocks.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li&gt;Because the Series&amp;#146; investments in foreign securities are often denominated in the currencies of the countries in which they are located, the value of the Series may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar. &lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s attempt to manage the currency risk described above may not accurately predict movements in currency exchange rates, which could cause the Series to sustain losses.&lt;/li&gt;&lt;/ul&gt;   The Series may also have special risks due to its investments in emerging market countries. In addition to the risks discussed above relating to investments in foreign companies located in developed countries, the Series&amp;#146; investments in emerging market countries are subject to the following risks:    &lt;ul type="square"&gt;&lt;li&gt;Emerging markets may be more likely to experience political turmoil or rapid changes in market or economic conditions than more developed countries.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li&gt;Emerging market countries often have less uniformity in accounting and reporting requirements and unreliable securities valuation.&lt;/li&gt;&lt;/ul&gt;  &lt;ul type="square"&gt;&lt;li&gt;It is sometimes difficult to obtain and enforce court judgments in emerging market countries and there is often a greater potential for nationalization and/or expropriation of assets by the government of an emerging market country.&lt;/li&gt;&lt;/ul&gt;  &lt;ul type="square"&gt;&lt;li&gt;There will tend to be an increased risk of price volatility associated with the Series&amp;#146; investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;   The Series may also have special risks due to its investments in stocks of small and mid-size companies. These risks include the following:   &lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be subject to more abrupt or erratic market movements than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;  &lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be less marketable than the stocks of larger companies. &lt;/li&gt;&lt;/ul&gt;  &lt;ul type="square"&gt;&lt;li&gt;Small and mid-size companies may have limited product lines, markets, or financial resources, and they may depend on a small management group. As a result, they fail more often than larger companies. &lt;/li&gt;&lt;/ul&gt;   The Series is subject to the following risks due to its ability to invest in forward contracts:  &lt;ul type="square"&gt;&lt;li&gt;Forwards, like all derivatives, can be extremely sensitive to changes in the market value of the underlying investment, and changes in the value of a forward contract may not correlate perfectly with the underlying investment. &lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li&gt;The Series may not be able to receive amounts payable to it under its forward contracts as quickly as it may be able to sell or otherwise obtain payments from other investments, so the Series&amp;#146; investments in such contracts may not be as liquid as the Series&amp;#146; other investments.&lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li&gt;The Series&amp;#146; use of forwards is also subject to the risk that the counterparty to the forward contract will default or otherwise become unable to honor its obligation to the Series.&lt;/li&gt;&lt;/ul&gt;      The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities. &lt;br/&gt;&lt;br/&gt;  The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#146; management or performance. &lt;br/&gt;&lt;br/&gt;  Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#146; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#146; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#146; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#146; performance and increase the likelihood of capital gain distributions for remaining shareholders. &lt;br/&gt;&lt;br/&gt;  The risks above could contribute to a decline in the value of the Series&amp;#146; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleTransposedWorldOpportunitiesSeries column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003637_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">-0.0798</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003627_MemberC000010089_Member" unitRef="pure">-0.0822</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003627_MemberC000010089_Member" unitRef="pure">-0.0488</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0212</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberSPFiveHundredFinancialServicesIndex_Member" unitRef="pure">-0.1702</rr:AverageAnnualReturnYear01>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">-0.0629</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003627_MemberC000010089_Member" unitRef="pure">-0.0682</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003627_MemberC000010089_Member" unitRef="pure">-0.0512</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0298</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberSPFiveHundredFinancialServicesIndex_Member" unitRef="pure">-0.0963</rr:AverageAnnualReturnSinceInception>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003645_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000032512_Member">As with any stock fund, the value of your investment will fluctuate in response to stock market movements. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;Foreign and/or U.S. stock markets go down.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;An adverse event, such as an unfavorable earnings report, depresses the value of one or more of the Series&amp;#8217; portfolio holdings.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#8217;s judgments about the attractiveness, relative value or potential appreciation of a strategy or security prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition to the general risks of stock funds, the Series has special risks due to its focus on foreign stocks. These risks include:&lt;ul type="square"&gt;&lt;li&gt;The prices of foreign common stocks may, at times, move in a different direction than the prices of U.S. common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Because the Series&amp;#8217; investments in foreign securities are often denominated in the currencies of the countries in which they are located, the value of the Series may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#8217;s attempt to manage the currency risk described above may not accurately predict movements in currency exchange rates, which could cause the Series to sustain losses.&lt;/li&gt;&lt;/ul&gt;The Series may also have special risks due to its investments in emerging market countries. In addition to the risks discussed above relating to investments in foreign companies located in developed countries, the Series&amp;#8217; investments in emerging market countries are subject to the following risks:&lt;ul type="square"&gt;&lt;li&gt;Emerging markets may be more likely to experience political turmoil or rapid changes in market or economic conditions than more developed countries.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Emerging market countries often have less uniformity in accounting and reporting requirements and unreliable securities valuation.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;It is sometimes difficult to obtain and enforce court judgments in emerging market countries and there is often a greater potential for nationalization and/or expropriation of assets by the government of an emerging market country.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;There will tend to be an increased risk of price volatility associated with the Series&amp;#8217; investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The Series does not have a limit on the amount that it may invest in any one country, and therefore it may be subject to a higher degree of risk than if the Series&amp;#8217; investments were more diversified among countries. As a result of investing in relatively few countries, the Series will be more susceptible to country-specific economic or market factors, social or political factors, legal, custody, accounting, legislative and regulatory changes, and currency fluctuations. These risks generally are greater for investments in securities of companies in emerging markets, which are usually in the initial stages of their industrialization cycle. To the extent the Series invests in relatively few countries, it may experience increased volatility as compared to a fund which is more diversified among countries.&lt;br/&gt;&lt;br/&gt;The Series may also have special risks due to its investments in stocks of small and mid-size companies. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be subject to more abrupt or erratic market movements than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be less marketable than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Small and mid-size companies may have limited product lines, markets, or financial resources, and they may depend on a small management group. As a result, they fail more often than larger companies.&lt;/li&gt;&lt;/ul&gt;The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities.&lt;br/&gt;&lt;br/&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#8217; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#8217; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#8217; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#8217; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#8217; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series&amp;#8217; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003630_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000032512_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003645_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000032512_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003630_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003632_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">The value of your investment will fluctuate in response to changes in interest rates and credit spreads. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;The issuer of a bond owned by the Series defaults on its obligation to pay principal and/or interest, or the issuer has its credit rating downgraded; this risk is greater for junk bonds and other lower quality bonds.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Interest rates rise or credit spreads widen, both of which will cause bond prices to fall and reduce the value of the Series&amp;#146; portfolio. Longer-term bonds will experience greater fluctuations than shorter-term bonds in response to interest rate changes.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s judgments about the attractiveness, relative value, or potential appreciation of a particular sector or security prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;The Series is subject to additional risks due to the large portion of the portfolio invested in foreign bonds. These risks include:&lt;ul type="square"&gt;&lt;li&gt;The prices of foreign bonds may, at times, move in a different direction than the prices of bonds issued in the United States.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Because a portion of the Series&amp;#146; investments may be denominated in the currencies of the countries in which they are located, the value of the Series may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s attempt to manage the currency risk described above may not accurately predict movements in currency exchange rates, which could cause the Series to sustain losses.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Investments in emerging market countries may be more volatile than investments in more developed markets.&lt;/li&gt;&lt;/ul&gt;To the extent the Series invests a portion of its assets in investment companies, those assets will be subject to the risks of the purchased investment company&amp;#146;s portfolio securities. The Series also will bear its proportionate share of the expenses of the purchased investment company in addition to its own expenses.&lt;br/&gt;&lt;br/&gt;In addition to the risks discussed above, the Series is subject to additional risks due to its emphasis on high yield bonds:&lt;ul type="square"&gt;&lt;li&gt;High yield bonds may underperform other sectors of the bond market, or the market as a whole.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The performance of high yield bonds tends to be more volatile than that of other sectors of the bond market.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Given the total size of the high yield bond market, high yield bonds can be less liquid than investment grade securities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Series&amp;#146; investments in high yield bonds will subject it to a substantial degree of credit risk because the prospect for repayment of principal and interest of many of these bonds is speculative.&lt;/li&gt;&lt;/ul&gt;High yield bonds are low-rated corporate or government bonds. They pay higher income than higher rated bonds to compensate for the higher risk assumed by their investors. These bonds may be issued by companies that are restructuring or by smaller, less well-established companies, or by those with heavy debt loads. In addition, foreign countries with political or economic instability may issue high yield bonds. Because of the types of issuers of these bonds, they carry more risk of default than higher rated bonds.&lt;br/&gt;&lt;br/&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#146; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#146; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#146; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#146; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#146; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series&amp;#146; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.0303</rr:AnnualReturn2004>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003630_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.1416</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.1062</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">-0.3877</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.5179</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.148</rr:AnnualReturn2010>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.1767</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.1399</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.1301</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">-0.3325</rr:AnnualReturn2008>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003628_Member">As with any stock fund, the value of your investment will fluctuate in response to stock market movements. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;The U.S. and/or foreign stock markets go down.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;An adverse event, such as an unfavorable earnings report, depresses the value of one or more of the Series&amp;#146; portfolio holdings. &lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s judgments about the attractiveness, relative value or potential appreciation of a security or strategy prove to be incorrect. &lt;/li&gt;&lt;/ul&gt;In addition to the general risks of stock funds, the Series has special risks due to its concentration in securities of issuers in commodity-related industries. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of commodity-related companies may underperform other sectors or the market as a whole. &lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of commodity-related companies may experience greater price volatility than other types of common stocks. &lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Commodity-related stocks are sensitive to changes in the prices of, and in supply and demand for, commodities. The prices, as well as supply and demand, may be affected by factors such as policies of commodity cartels, and by international economic, political and regulatory events.&lt;br/&gt;The Advisor&amp;#146;s judgments about trends in the prices of commodities may prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition, because the Series may hold a significant portion of its assets in foreign securities and ADRs, it is subject to risks specific to foreign holdings. These risks include: &lt;ul type="square"&gt;&lt;li&gt;The prices of foreign common stocks may, at times, move in a different direction than the prices of U.S. common stocks. &lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Because the Series&amp;#146; investments in foreign securities may be denominated in the currencies of the countries in which they are located, the value of the Series may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;&lt;ul&gt;&lt;li type = "square"&gt;Investments in emerging market countries may be more volatile than investments in more developed markets.&lt;/li&gt;&lt;/ul&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#146; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#146; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#146; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#146; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#146; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series&amp;#146; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.3423</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.1204</rr:AnnualReturn2010>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003628_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.1001</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.1001</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.0651</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0212</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_MemberRussellTwoThousandIndex_Member" unitRef="pure">-0.0418</rr:AverageAnnualReturnYear01>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member">2002-12-31</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member">2002-03-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">As with any stock fund, the value of your investment will fluctuate in response to stock market movements.&lt;br/&gt;&lt;br/&gt;You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;The U.S. and/or foreign stock markets go down.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;An adverse event, such as an unfavorable earnings report, depresses the value of one or more of the Series&amp;#146; portfolio holdings.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s judgments about the attractiveness, relative value or potential appreciation of a security or strategy prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition to the general risks of stock funds, the Series has special risks due to its concentration in securities of issuers in the real estate industry, even though the Series does not invest directly in real estate. These risks include, but are not limited to, the following: fluctuations in the value of real estate properties and interest rates, defaults by borrowers or tenants, extended vacancies and declining rents, a lack of ability to obtain mortgage financing or other limits to accessing the credit or capital markets, increased competition and overbuilding and increases in real estate or operating taxes. Any geographic concentration of the Series&amp;#146; real estate related investments could result in the Series being subject to the above risks to a greater degree.&lt;br/&gt;&lt;br/&gt;The Series&amp;#146; investments in REITs and REOCs (together, real estate companies, or RECs) are subject to additional risks. The value of a REIT or REOC can depend on its legal structure and cash flow generation. While RECs raise equity and debt capital through the private and public markets, RECs are neither mutual funds, nor hedge funds, nor private equity funds. Much as other operating companies, RECs incur operating expenses necessary to manage and maintain properties. Investing in the Series will result in absorbing duplicate levels of fees for the Series&amp;#146; investments in RECs. In addition, REITs are subject to certain federal tax laws and if the REIT fails to qualify for such tax treatment, significant adverse consequences could occur for any such REIT investment. For example, a qualified REIT may be adversely affected by its failure to qualify for tax-free pass through of income.&lt;br/&gt;&lt;br/&gt;The Series may also have special risks due to its investments in stocks of small and mid-size companies. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be subject to more abrupt or erratic market movements than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be less marketable than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Small and mid-size companies may have limited product lines, markets, or financial resources, and they may depend on a small management group. As a result, they fail more often than larger companies.&lt;/li&gt;&lt;/ul&gt;Because the Series may invest in foreign stocks and ADRs, it is subject to the following additional risks:&lt;ul type="square"&gt;&lt;li&gt;The prices of foreign common stocks may, at times, move in a different direction than the prices of U.S. common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Because the Series&amp;#146; investments in foreign securities may be denominated in the currencies of the countries in which they are located, the value of the Series&amp;#146; holdings may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The Series may also have special risks due to its investments in emerging market countries. In addition to the risks discussed above relating to investments in foreign companies located in developed countries, the Series&amp;#146; investments in emerging market countries are subject to the following risks:&lt;ul type="square"&gt;&lt;li&gt;Emerging markets may be more likely to experience political turmoil or rapid changes in market or economic conditions than more developed countries.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Emerging market countries often have less uniformity in accounting and reporting requirements and unreliable securities valuation.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;It is sometimes difficult to obtain and enforce court judgments in emerging market countries and there is often a greater potential for nationalization and/or expropriation of assets by the government of an emerging market country.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;There will tend to be an increased risk of price volatility associated with the Series&amp;#146; investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities.&lt;br/&gt;&lt;br/&gt;The Series may purchase shares issued as part of, or a short period after, a company&amp;#146;s initial public offering (IPO), and may at times dispose of those shares shortly after their acquisition. The Series&amp;#146; purchase of shares issued in IPOs exposes it to the risks associated with companies that have little operating history as public companies, as well as to the risks inherent in those sectors of the market where these new issuers operate. The market for IPO issuers has been volatile, and share prices of newly-public companies have fluctuated significantly over short periods of time.&lt;br/&gt;&lt;br/&gt;Because the Series may also invest in bonds, it is subject to the following additional risks:&lt;ul type="square"&gt;&lt;li&gt;Interest rates go up, which will make bond prices go down and reduce the value of the bonds held in the Series&amp;#146; portfolio.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The issuer of a bond owned by the Series defaults on its obligation to pay principal and/or interest or has its credit rating downgraded; this risk is greater for lower quality bonds, which include bonds rated lower than BBB by S&amp;amp;P or Baa by Moody&amp;#146;s.&lt;/li&gt;&lt;/ul&gt;In addition to the risks of bonds discussed above, the Series is subject to additional risks due to its ability to invest up to 5% of its assets in high yield or junk bonds:&lt;ul type="square"&gt;&lt;li&gt;High yield bonds may underperform other sectors of the bond market, or the bond market as a whole.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The performance of high yield bonds tends to be more volatile than that of other sectors of the bond market.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Given the total size of the high yield bond market, high yield bonds can be less liquid than investment grade securities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Series&amp;#146; investments in high yield bonds will subject it to a substantial degree of credit risk because the prospect for repayment of principal and interest of many of these bonds is speculative.&lt;/li&gt;&lt;/ul&gt;High yield bonds pay higher income than investment grade bonds to compensate for the higher risk assumed by their investors. These bonds are typically issued by companies that are restructuring, carry higher debt burdens, or are smaller and/or less established than investment grade companies. Because of the types of issuers of these bonds, they carry more risk of default than higher rated bonds.&lt;br/&gt;&lt;br/&gt;The Series&amp;#146; investments in convertible securities are subject to interest rate risk and credit risk, which are described above. In addition, they are also subject to the risk that the price of the underlying common stock will go down, which may cause a proportionate (or disproportionate) decline in the price of the convertible security.&lt;br/&gt;&lt;br/&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#146; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#146; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#146; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#146; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#146; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers and may experience increased volatility due to its investments in those securities.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series&amp;#146; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">The Series will invest, under normal circumstances, at least 80% of its net assets in securities of companies in technology-based industries. The companies in which the Series may invest include those directly engaged in technology as well as those that use technological advances extensively in their product development or operations. Examples of these companies include those in the following areas: computer hardware &amp;amp; software, semiconductors, data networking &amp;amp; communications equipment, communication services, electronic equipment &amp;amp; instruments, healthcare information technology, Internet-based software and services, alternative energy products &amp;amp; services, and related suppliers and distributors. In addition to companies involved in the manufacture, sale, and distribution of technology products and services, the Advisor also actively looks to invest in companies that use technology extensively in their operations for competitive advantage, or have a technological edge that allows them to gain market share. A company will be considered appropriate for investment if, (i) as determined by the Advisor, at least 50% of its assets, revenues or net income is derived from the technology industry, or (ii) it has been classified (such as in the Global Industry Standard Classification system) in the technology industry by a governmental authority, index provider, rating agency or similar third party.&lt;br/&gt;&lt;br/&gt;The Series may invest in U.S. and foreign stocks, including those in emerging markets, American Depository Receipts (ADRs) and other U.S. dollar denominated securities of foreign issuers. The Series may invest in stocks of small, large, or mid-size companies.&lt;br/&gt;&lt;br/&gt;The Series may purchase shares of exchange-traded funds (ETFs), including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Series to invest in a particular sector of the market more efficiently than would otherwise be possible.&lt;br/&gt;&lt;br/&gt;The Advisor uses a &amp;#147;bottom-up&amp;#148; strategy, focusing on individual security selection. The Advisor analyzes factors such as the management, financial condition, and market position of individual companies to select companies in the technology sector that it believes will make attractive long-term investments. In selecting individual securities, the Advisor uses fundamental analysis and looks for one or more of the following characteristics:&lt;ul type="square"&gt;&lt;li&gt;Strong strategic profiles (e.g., strong market position, benefits from technology, market share gains in a mature market and high barriers to entry).&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies well-positioned to benefit from an anticipated upturn in an industry sub-sector due to sharply reduced competition and improving demand.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Companies trading at very low valuations relative to fundamental or break-up value.&lt;/li&gt;&lt;/ul&gt;The Series may buy and sell portfolio securities actively. If it does, its portfolio turnover rate and transaction costs will rise, which may lower the Series' performance and increase the likelihood of capital gain distributions.</rr:StrategyNarrativeTextBlock>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.0669</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.0474</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.0503</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0793</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_MemberRussellTwoThousandIndex_Member" unitRef="pure">0.0847</rr:AverageAnnualReturnSinceInception>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000025218_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003634_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003628_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000025218_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003634_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003631_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003631_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">-0.0733</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003645_MemberC000010131_Member" unitRef="pure">-0.0775</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003645_MemberC000010131_Member" unitRef="pure">-0.0425</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0212</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberSAndPFiveHundredHealthCareIndex_Member" unitRef="pure">0.1274</rr:AverageAnnualReturnYear01>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003631_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.1079</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003645_MemberC000010131_Member" unitRef="pure">0.0788</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003645_MemberC000010131_Member" unitRef="pure">0.0787</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0114</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberSAndPFiveHundredHealthCareIndex_Member" unitRef="pure">0.0254</rr:AverageAnnualReturnSinceInception>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003627_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">The Series will invest, under normal circumstances, at least 80% of its net assets in investment grade bonds and other financial instruments with economic characteristics similar to bonds. For purposes of this policy, bonds may include government, corporate, and pass-through securities, and mortgage dollar rolls. The corporate bonds may be issued by domestic corporations, foreign entities (i.e., yankee bonds), and/or supranational entities, such as the World Bank. Pass-through securities are generally issued by domestic entities (such as GNMA, FNMA, and FHLMC) and entitle the holders to a pro rata share of the cash flows generated by the instruments underlying the security (mortgages, credit card receivables, car loans, etc.). The Series may purchase shares of exchange-traded funds (ETFs), including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Fund to invest in a particular sector of the market more efficiently than would otherwise be possible.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Maturity and Portfolio Duration&lt;/i&gt; &amp;#151; The Series is not subject to any maturity or duration restrictions but will vary its average dollar weighted portfolio maturity and duration depending on the Advisor&amp;#8217;s outlook for yields. For example, the Advisor may invest in longer-term bonds when it expects yields to fall in order to realize gains for the Series. Likewise, the Advisor may invest in shorter-term bonds when it expects yields to rise.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Credit Quality&lt;/i&gt; &amp;#151; The Series will typically invest in investment grade securities, those securities rated BBB or above by S&amp;#38;P or Baa or above by Moody&amp;#8217;s (or determined to be of equivalent quality by the Advisor).&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Bond Selection Process&lt;/i&gt; &amp;#151; When investing in corporate and pass-through securities, the Advisor attempts to identify sectors, as well as individual securities within those sectors, that offer yields and credit/prepayment spreads sufficient to compensate the Series for the risks specific to a given sector or security. Credit spreads are a measure of the difference between corporate bonds&amp;#8217; yields to maturity and those of U.S. Treasury securities with similar maturities; this difference compensates investors for the credit risk inherent in corporate bonds. Prepayment spreads quantify the additional yield paid by mortgage-backed bonds relative to U.S. Treasury securities to compensate investors for the risk that mortgage-backed securities&amp;#8217; prepayments will vary over time.&lt;br/&gt;&lt;br/&gt;The Advisor may also invest in U.S. Treasury and U.S. Agency securities when it believes they are an attractive investment option relative to corporate and pass-through securities.&lt;br/&gt;&lt;br/&gt;In analyzing the relative attractiveness of sectors and/or individual securities, the Advisor considers:&lt;ul type="square"&gt;&lt;li&gt;The relevant economic conditions and sector trends.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The interest rate sensitivities of the particular sectors and securities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The yield differentials across sectors, credit qualities, pass-through security types, and maturities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;&amp;#8220;Bottom-up&amp;#8221; factors such as issuer-specific credit metrics for corporate bonds and coupon, prepayment, and convexity components (which reflect changing interest rate sensitivities) of pass-through securities.&lt;/li&gt;&lt;/ul&gt;The Series may buy and sell portfolio securities actively. If it does, its portfolio turnover rate and transaction costs will rise, which may lower fund performance and may increase the likelihood of capital gain distributions.</rr:StrategyNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000025218_Member">CALENDAR YEAR ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">The value of your investment will fluctuate in response to changes in interest rates, credit spreads, and prepayment spreads.&lt;br/&gt;&lt;br/&gt;You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;Interest rates rise, credit spreads widen, and/or prepayment spreads widen. These events alone or in combination can cause bond prices to fall and reduce the value of the Series&amp;#8217; portfolio. Longer-term bonds will experience greater fluctuations than shorter-term bonds given their greater sensitivity to interest rate changes.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The issuer of a corporate bond owned by the Series defaults on its obligation to pay principal and/or interest or has its credit rating downgraded; this risk is greater for lower quality bonds, which include bonds rated lower than BBB by S&amp;#38;P or Baa by Moody&amp;#8217;s.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Market volatility and/or prepayment spreads change to such a degree that prepayment uncertainty/risks are reassessed; the greater the uncertainty/risk, the wider the requisite prepayment spread.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#8217;s judgment about the attractiveness, relative value, or potential appreciation of a particular sector or security prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;The Series&amp;#8217; mortgage dollar rolls could lose money if the price of the mortgage-backed securities sold falls below the agreed upon repurchase price, or if the counterparty is unable to honor the agreement.&lt;br/&gt;&lt;br/&gt;The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities.&lt;br/&gt;&lt;br/&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#8217; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#8217; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#8217; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#8217; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#8217; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series&amp;#8217; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000032513_Member">As with any stock fund, the value of your investment will fluctuate in response to stock market movements. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;Foreign and/or U.S. stock markets go down.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;An adverse event, such as an unfavorable earnings report, depresses the value of one or more of the Series' portfolio holdings.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor's judgments about the attractiveness, relative value or potential appreciation of a strategy or security prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor's inflationary outlook is incorrect or the industries or companies in which the Series invests do not realize the expected benefit from inflation.&lt;/li&gt;&lt;/ul&gt;In addition to the general risks of stock funds, the Series may have special risks related to its investments in foreign stocks. These risks include:&lt;ul type="square"&gt;&lt;li&gt; The prices of foreign common stocks may, at times, move in a different direction than the prices of U.S. common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt; Because the Series' investments in foreign securities are often denominated in the currencies of the countries in which they are located, the value of the Series may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor's attempt to manage the currency risk described above may not accurately predict movements in currency exchange rates, which could cause the Series to sustain losses.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Investments in emerging market countries may be more volatile than investments in more developed markets.&lt;/li&gt;&lt;/ul&gt;The Series does not have a limit on the amount that it may invest in any one country, and therefore it may be subject to a higher degree of risk than if the Series' investments were more diversified among countries. As a result of investing in relatively few countries, the Series will be more susceptible to country-specific economic or market factors, social or political factors, legal, custody, accounting, legislative and regulatory changes, and currency fluctuations. To the extent the Series invests in relatively few countries, it may experience increased volatility as compared to a fund which is more diversified among countries.&lt;br/&gt;&lt;br/&gt;The Series may also have special risks due to its investments in stocks of small and mid-size companies. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be subject to more abrupt or erratic market movements than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be less marketable than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Small and mid-size companies may have limited product lines, markets, or financial resources, and they may depend on a small management group. As a result, they fail more often than larger companies.&lt;/li&gt;&lt;/ul&gt;The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities.&lt;br/&gt;&lt;br/&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series' management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series' shares. Redemptions by these institutions or individuals in the Series may impact the Series' liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series' portfolio turnover rate and transaction costs to rise, which may negatively affect the Series' performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;Because the Series may invest in fixed-income securities, you could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;Interest rates go up, which will make bond prices go down and reduce the value of the bonds held in the Series' portfolio.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The issuer of a fixed income security owned by the Series defaults on its obligation to pay principal and/or interest or has its credit rating downgraded.&lt;/li&gt;&lt;/ul&gt;The value of the Series' inflation protected fixed income securities, including TIPS, generally will fluctuate in response to changes in "real" interest rates, generally decreasing when real interest rates rise and increasing when real interest rates fall. Real interest rates represent nominal (or stated) interest rates reduced by the expected impact of inflation. In addition, interest payments on inflation-indexed securities will generally vary up or down along with the rate of inflation.&lt;br/&gt;&lt;br/&gt;The Series is subject to the following risks due to its ability to invest in options and forward contracts:&lt;ul type="square"&gt;&lt;li&gt;Options and forwards, like all derivatives, can be extremely sensitive to changes in the market value of the underlying investment, and changes in the value of an option or forward contract may not correlate perfectly with the underlying investment.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Series may not be able to receive amounts payable to it under its options and forward contracts as quickly as it may be able to sell or otherwise obtain payments from other investments, so the Series' investments in such contracts may not be as liquid as the Series' other investments.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Series' use of forwards is also subject to the risk that the counterparty to the forward contract will default or otherwise become unable to honor its obligation to the Series.&lt;/li&gt;&lt;/ul&gt;The Series is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Series may be susceptible to a single adverse economic or regulatory occurrence affecting one or more of these issuers, and may experience increased volatility due to its investments in those securities.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series' investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003631_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleTransposedNewYorkTaxExemptSeries column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003634_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003631_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000025218_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003631_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003627_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.244</rr:AnnualReturn2010>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003634_Member">CALENDAR YEAR ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member">2003-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000032513_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member">2002-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003627_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003631_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0558</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0166</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.1146</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0897</rr:AnnualReturn2010>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">-0.1293</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003630_MemberC000010096_Member" unitRef="pure">-0.1297</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003630_MemberC000010096_Member" unitRef="pure">-0.0803</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0212</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberMsciAllCountryWorldIndexExUsIndex_Member" unitRef="pure">-0.1371</rr:AverageAnnualReturnYear01>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.0801</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003630_MemberC000010096_Member" unitRef="pure">0.0596</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003630_MemberC000010096_Member" unitRef="pure">0.0621</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0802</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberMsciAllCountryWorldIndexExUsIndex_Member" unitRef="pure">0.0596</rr:AverageAnnualReturnSinceInception>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member">2008-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000032513_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003631_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0568</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003631_MemberC000010097_Member" unitRef="pure">0.0419</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003631_MemberC000010097_Member" unitRef="pure">0.0384</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberBankOfAmericaMerrillLynchUsCorporateGovernmentAndMortgageIndex_Member" unitRef="pure">0.0788</rr:AverageAnnualReturnYear01>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.1359</rr:AnnualReturn2010>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0575</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003631_MemberC000010097_Member" unitRef="pure">0.0431</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003631_MemberC000010097_Member" unitRef="pure">0.041</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberBankOfAmericaMerrillLynchUsCorporateGovernmentAndMortgageIndex_Member" unitRef="pure">0.0585</rr:AverageAnnualReturnSinceInception>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedNewYorkTaxExemptSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:YearToDateReturnLabel contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member">Year-to-date performance</rr:YearToDateReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member">2011-12-31</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000003628_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleTransposedCommoditySeries column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedWorldOpportunitiesSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleTransposedCorePlusBondSeries column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:YearToDateReturnLabel contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member">Year-to-date performance</rr:YearToDateReturnLabel>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member">2010-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000025218_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedCorePlusBondSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.1981</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.1411</rr:AnnualReturn2005>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.0932</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.5068</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.4839</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.2571</rr:AnnualReturn2010>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0011</rr:OtherExpensesOverAssets>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003630_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">The Series invests primarily in municipal bonds and other securities the income from which is exempt from federal income tax and New York State personal income tax. The Series will, under normal circumstances, invest at least 80% of its net assets in securities the income from which is exempt from federal and New York income tax, including the Alternative Minimum Tax. The main issuers of these securities are state and local agencies in New York. In selecting investments for the Series, the Advisor attempts to balance the Series&amp;#146; goals of high income and capital preservation. With this approach, the Advisor attempts to build a portfolio that it believes provides the opportunity to earn current income; however, the Advisor will only purchase investment grade securities, or those securities determined by the Advisor to be of equivalent quality, and will maintain other selection criteria in an attempt to avoid permanent capital loss.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Maturity and Portfolio Duration &lt;/i&gt;&amp;#151; The Series is not subject to any maturity or duration restrictions but will vary its average dollar weighted portfolio maturity and duration depending on the Advisor&amp;#146;s outlook for yields. For example, the Advisor may invest in longer-term bonds when it expects yields to fall in order to realize gains for the Series. Likewise, the Advisor may invest in shorter-term bonds when it expects yields to rise.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Credit Quality&lt;/i&gt; &amp;#151; The Series&amp;#146; investments will be limited to investment grade securities, those rated BBB and above by S&amp;amp;P or Baa or above by Moody&amp;#146;s, or determined by the Advisor to be of equivalent quality.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Bond Selection Process&lt;/i&gt; &amp;#151; The Advisor emphasizes those bond market sectors and selects for the Series those securities that it believes offer yields sufficient to compensate the investor for the risks specific to the security or sector. In analyzing the relative attractiveness of sectors and individual securities, the Advisor considers:&lt;ul type="square"&gt;&lt;li&gt; The interest rate sensitivity of each security.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt; The narrowing or widening of interest rate spreads between sectors, securities of different credit quality or securities of different maturities.&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:ExpensesOverAssets id="Item_37" decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0072</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.0487</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003634_MemberC000010100_Member" unitRef="pure">0.0214</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003634_MemberC000010100_Member" unitRef="pure">0.0355</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberBankOfAmericaMerrillLynchUsHighYieldCashPayBbbRatedIndex_Member" unitRef="pure">0.0547</rr:AverageAnnualReturnYear01>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">As with any stock fund, the value of your investment will fluctuate in response to stock market movements. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;The U.S. and/or foreign stock markets go down.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;An adverse event, such as an unfavorable earnings report, depresses the value of one or more of the Series' portfolio holdings.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor's judgments about the attractiveness, relative value or potential appreciation of a security or strategy prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition to the general risks of stock funds, the Series has special risks due to its concentration in securities of issuers in technology-based industries. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of technology-based companies may underperform other sectors or the market as a whole. The stocks of technology-based companies may experience greater price volatility than other types of common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Technology company stocks may be subject to abrupt or erratic price movements, especially over the short term, due to the rapid pace of product change and development affecting such companies.&lt;/li&gt;&lt;/ul&gt;Because the Series may invest in foreign stocks and ADRs, it is subject to the following additional risks:&lt;ul type="square"&gt;&lt;li&gt;The prices of foreign common stocks may, at times, move in a different direction than the prices of U.S. common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Because the Series' investments in foreign securities may be denominated in the currencies of the countries in which they are located, the value of the Series may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The Series may also have special risks due to its investments in emerging market countries. In addition to the risks discussed above relating to investments in foreign companies located in developed countries, the Series' investments in emerging market countries are subject to the following risks:&lt;ul type="square"&gt;&lt;li&gt;Emerging markets may be more likely to experience political turmoil or rapid changes in market or economic conditions than more developed countries.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Emerging market countries often have less uniformity in accounting and reporting requirements and unreliable securities valuation.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;It is sometimes difficult to obtain and enforce court judgments in emerging market countries and there is often a greater potential for nationalization and/or expropriation of assets by the government of an emerging market country.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;There will tend to be an increased risk of price volatility associated with the Series' investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The Series may purchase shares issued as part of, or a short period after, a company's initial public offering (IPO), and may at times dispose of those shares shortly after their acquisition. The Series' purchase of shares issued in IPOs exposes it to the risks associated with companies that have little operating history as public companies, as well as to the risks inherent in those sectors of the market where these new issuers operate. The market for IPO issuers has been volatile, and share prices of newly-public companies have fluctuated significantly over short periods of time.&lt;br/&gt;&lt;br/&gt;The Series may also have special risks due to its investments in stocks of small and mid-size companies. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be subject to more abrupt or erratic market movements than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be less marketable than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Small and mid-size companies may have limited product lines, markets, or financial resources, and they may depend on a small management group. As a result, they fail more often than larger companies.&lt;/li&gt;&lt;/ul&gt;The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities.&lt;br/&gt;&lt;br/&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series' management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series' shares. Redemptions by these institutions or individuals in the Series may impact the Series' liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series' portfolio turnover rate and transaction costs to rise, which may negatively affect the Series' performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series' investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:ExpensesOverAssets id="Item_38" decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.0076</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.1014</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003634_MemberC000010100_Member" unitRef="pure">0.0728</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003634_MemberC000010100_Member" unitRef="pure">0.071</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberBankOfAmericaMerrillLynchUsHighYieldCashPayBbbRatedIndex_Member" unitRef="pure">0.1202</rr:AverageAnnualReturnSinceInception>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleTransposedFinancialServicesSeries column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003626_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003626_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:AnnualReturn2004 id="Item_39" xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure" />
  <rr:AnnualReturn2005 id="Item_40" xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure" />
  <rr:AnnualReturn2007 id="Item_41" xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure" />
  <rr:AnnualReturn2008 id="Item_42" xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure" />
  <rr:AnnualReturn2009 id="Item_43" xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure" />
  <rr:AnnualReturn2010 id="Item_44" xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure" />
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedFinancialServicesSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.0529</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000025218_MemberC000075173_Member" unitRef="pure">0.0427</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000025218_MemberC000075173_Member" unitRef="pure">0.0403</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0212</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberMsciUsReitIndex_Member" unitRef="pure">0.0748</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.1676</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000025218_MemberC000075173_Member" unitRef="pure">0.1533</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000025218_MemberC000075173_Member" unitRef="pure">0.1369</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0898</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberMsciUsReitIndex_Member" unitRef="pure">0.2071</rr:AverageAnnualReturnSinceInception>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003626_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003626_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.1008</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.022</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.2255</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">-0.4586</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.619</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.1953</rr:AnnualReturn2010>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedInternationalSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">As with most bond funds, the value of your investment will fluctuate with changes in interest rates. This means that you could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;Interest rates go up, which will make bond prices go down and reduce the value of the Series&amp;#146; portfolio. This risk will be higher when the Series is invested in longer-term bonds than when it is invested in bonds with shorter maturities, because longer-term bonds are generally more sensitive to interest rate changes. Changes in the value of portfolio securities will not affect interest income derived from those securities, but will affect the value of the Series&amp;#146; portfolio.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt; The issuer of a bond owned by the Series defaults on its obligation to pay principal or interest or has its credit rating downgraded.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s judgments about the attractiveness, relative value or potential appreciation of a particular security or sector prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition to the general risks of bond funds, the Series is subject to the following additional risks due to its focus on municipal bonds:&lt;ul type="square"&gt;&lt;li&gt; Changes in the financial condition of municipal issuers may adversely affect the value of the Series&amp;#146; securities.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Economic or political changes may affect the ability of issuers of municipal securities to repay principal and to make interest payments on securities owned by the Series.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt; Poor statewide or local economic results or changing political sentiments may reduce tax revenues and increase the expenses of municipal issuers, making it more difficult for them to meet their obligations.&lt;/li&gt;&lt;/ul&gt;In addition to the risks of bond funds in general and more specifically of municipal bond funds, this Series has the following special risks:&lt;ul type="square"&gt;&lt;li&gt;Concentration in New York tax exempt securities may lead to more volatility than if the Series invested in securities from a number of different states.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt; The Series is sensitive to political, economic, or demographic developments within the state, public authorities, or political subdivisions, particularly the New York City area.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;  The Series is subject to the risk that its market segment (New York tax exempt securities) may underperform other fixed income market segments or the fixed income markets as a whole.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt; Both New York State and New York City have experienced financial and budgetary difficulties in the past, and New York State is currently experiencing a significant budgetary shortfall. Financial and budgetary problems could adversely affect all issuers of New York tax exempt securities.&lt;/li&gt;&lt;/ul&gt; The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#146; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#146; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#146; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#146; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#146; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt; The risks above could contribute to a decline in the value of the Series&amp;#146; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_02May2011_01May2012S000003630_Member">April 30, 2013</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member">2002-12-31</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003633_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member">2002-06-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003634_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003645_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:PerformanceTableOneClassOfAfterTaxShown contextRef="Duration_02May2011_01May2012S000003634_Member">The after-tax figures are shown for one share class only, and would be different for the other share class.</rr:PerformanceTableOneClassOfAfterTaxShown>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003645_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003645_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedSmallCapSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">-0.1031</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003626_MemberC000010088_Member" unitRef="pure">-0.1044</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003626_MemberC000010088_Member" unitRef="pure">-0.0653</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0212</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberSPFiveHundredInformationTechnologyIndex_Member" unitRef="pure">0.0243</rr:AverageAnnualReturnYear01>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.016</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003626_MemberC000010088_Member" unitRef="pure">0.0133</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003626_MemberC000010088_Member" unitRef="pure">0.0129</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberSPFiveHundredIndex_Member" unitRef="pure">0.0044</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberSPFiveHundredInformationTechnologyIndex_Member" unitRef="pure">-0.0519</rr:AverageAnnualReturnSinceInception>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedGlobalFixedIncomeSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:ExpensesOverAssets id="Item_45" decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0064</rr:ExpensesOverAssets>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedHighYieldBondSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedCoreBondSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <dei:DocumentEffectiveDate contextRef="Duration_02May2011_01May2012">2012-10-19</dei:DocumentEffectiveDate>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003626_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedRealEstateSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003628_MemberC000010090_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003635_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003635_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.003</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_46" decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0082</rr:ExpensesOverAssets>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0824</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003638_MemberC000010108_Member" unitRef="pure">0.0814</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003638_MemberC000010108_Member" unitRef="pure">0.0647</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0758</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0469</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003638_MemberC000010108_Member" unitRef="pure">0.0466</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003638_MemberC000010108_Member" unitRef="pure">0.0458</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0528</rr:AverageAnnualReturnSinceInception>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003635_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:MaximumAccountFee decimals="INF" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0008</rr:OtherExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_47" decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.006</rr:ExpensesOverAssets>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">The Series invests primarily in municipal bonds and other securities the income from which is exempt from federal income tax and Ohio State personal income tax. The Series will, under normal circumstances, invest at least 80% of its net assets in securities the income from which is exempt from federal and Ohio income tax, including the Alternative Minimum Tax. The main issuers of these securities are state and local agencies in Ohio. In selecting investments for the Series, the Advisor attempts to balance the Series&amp;#146; goals of high income and capital preservation. With this approach, the Advisor attempts to build a portfolio that it believes provides the opportunity to earn current income; however, the Advisor will only purchase investment grade securities, or those determined by the Advisor to be of equivalent quality, and will maintain other selection criteria in an attempt to avoid permanent capital loss.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Maturity and Portfolio Duration &lt;/i&gt;&amp;#151; The Series is not subject to any maturity or duration restrictions but will vary its average dollar weighted portfolio maturity and duration depending on the Advisor&amp;#146;s outlook for yields. For example, the Advisor may invest in longer-term bonds when it expects yields to fall in order to realize gains for the Series. Likewise, the Advisor may invest in shorter-term bonds when it expects yields to rise.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Credit Quality&lt;/i&gt; &amp;#151; The Series&amp;#146; investments will be limited to investment grade securities, those rated BBB or above by S&amp;amp;P or Baa or above by Moody&amp;#146;s or determined by the Advisor to be of equivalent quality.&lt;br/&gt;&lt;br/&gt;&lt;i&gt;Bond Selection Process &lt;/i&gt;&amp;#151; The Advisor emphasizes those bond market sectors and selects for the Series those securities that it believes offer yields sufficient to compensate the investor for the risks specific to the security or sector. In analyzing the relative attractiveness of sectors and individual securities, the Advisor considers:&lt;br/&gt;&lt;ul&gt;&lt;li type = "square"&gt;The interest rate sensitivity of each security.&lt;/li&gt;&lt;/ul&gt;&lt;ul&gt;&lt;li type = "square"&gt;The narrowing or widening of interest rate spreads between sectors, securities of different credit quality or securities of different maturities.&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_02May2011_01May2012S000003638_Member">Investment Goal</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02May2011_01May2012S000003638_Member">Fees and Expenses</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02May2011_01May2012S000003638_Member">Portfolio Turnover</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">The Series invests primarily in municipal bonds and other securities the income from which is exempt from federal income tax. The Series will, under normal circumstances, invest at least 80% of its net assets in securities the income from which is exempt from federal income tax, including the Alternative Minimum Tax. The main issuers of these securities are state and local agencies. In selecting investments for the Series, the Advisor attempts to balance the Series&amp;#146; goals of high income and capital preservation. With this approach, the Advisor attempts to build a portfolio that it believes provides the opportunity to earn current income; however, the Advisor will only purchase investment grade securities, or those securities determined by the Advisor to be of equivalent quality, and will maintain other selection criteria in an attempt to avoid permanent capital loss.&lt;br /&gt;&lt;br /&gt;&lt;i&gt;Maturity and Portfolio Duration &lt;/i&gt;&amp;#151; The Series is not subject to any maturity or duration restrictions but will vary its average dollar weighted portfolio maturity and duration depending on the Advisor&amp;#146;s outlook for yields. For example, the Advisor may invest in longer-term bonds when it expects yields to fall in order to realize gains for the Series. Likewise, the Advisor may invest in shorter-term bonds when it expects yields to rise.  &lt;br /&gt;&lt;br /&gt;&lt;i&gt;Credit Quality&lt;/i&gt; &amp;#151; The Series&amp;#146; investments will be limited to investment grade securities, those rated BBB or above by S&amp;amp;P or Baa or above by Moody&amp;#146;s or determined by the Advisor to be of equivalent quality.&lt;br /&gt;&lt;br/&gt;&lt;i&gt;Bond Selection Process&lt;/i&gt; &amp;#151; The Advisor emphasizes those bond market sectors and selects for the Series those securities that it believes offer yields sufficient to compensate the investor for the risks specific to the security or sector. In analyzing the relative attractiveness of sectors and individual securities, the Advisor considers: &lt;ul type="square"&gt;&lt;li&gt;The interest rate sensitivity of each security.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The narrowing or widening of interest rate spreads between sectors, securities of different credit quality or securities of different maturities.&lt;/li&gt;&lt;/ul&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">As with most bond funds, the value of your investment will fluctuate with changes in interest rates. This means that you could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul&gt;&lt;li type = "square"&gt;Interest rates go up, which will make bond prices go down and reduce the value of the Series&amp;#146; portfolio. The risk will be higher when the Series is invested in longer-term bonds than when it is invested in bonds with shorter maturities, because longer-term bonds are generally more sensitive to interest rate changes. Changes in the value of portfolio securities will not affect interest income derived from those securities, but will affect the value of the Series&amp;#146; portfolio.&lt;/li&gt;&lt;/ul&gt;&lt;ul&gt;&lt;li type = "square"&gt;The issuer of a bond owned by the Series defaults on its obligation to pay principal or interest or has its credit rating downgraded.&lt;/li&gt;&lt;/ul&gt;&lt;ul&gt;&lt;li type = "square"&gt;The Advisor&amp;#146;s judgments about the attractiveness, relative value or potential appreciation of a particular security or sector prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition to the general risks of bond funds, the Series is subject to the following additional risks due to its focus on municipal bonds:&lt;ul&gt;&lt;li type = "square"&gt;Changes in the financial condition of municipal issuers may adversely affect the value of the Series&amp;#146; securities.&lt;/li&gt;&lt;/ul&gt;&lt;ul&gt;&lt;li type = "square"&gt;Economic or political changes may affect the ability of issuers of municipal securities to repay principal and to make interest payments on securities owned by the Series.&lt;/li&gt;&lt;/ul&gt;&lt;ul&gt;&lt;li type = "square"&gt;Poor statewide or local economic results or changing political sentiments may reduce tax revenues and increase the expenses of municipal issuers, making it more difficult for them to meet their obligations.&lt;/li&gt;&lt;/ul&gt;In addition to the risks of bond funds in general and more specifically of municipal bond funds, this Series has the following special risks:&lt;ul&gt;&lt;li type = "square"&gt;Concentration in Ohio tax exempt securities may lead to more volatility than if the Series invested in securities from a number of different states.&lt;/li&gt;&lt;/ul&gt;&lt;ul&gt;&lt;li type = "square"&gt;The Series is sensitive to political, economic, or demographic developments within the state, public authorities, or political subdivisions.&lt;/li&gt;&lt;/ul&gt;&lt;ul&gt;&lt;li type = "square"&gt;The Series is subject to the risk that its market segment (Ohio tax exempt securities) may underperform other fixed income market segments or the fixed income markets as a whole.&lt;/li&gt;&lt;/ul&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#146; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#146; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#146; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets),as well as cause the Series&amp;#146; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#146; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br/&gt;&lt;br/&gt;The risks above could contribute to a decline in the value of the Series&amp;#146; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003638_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02May2011_01May2012S000003635_Member">Summary of Past Performance</rr:BarChartAndPerformanceTableHeading>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0328</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0285</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0328</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">-0.0174</rr:AnnualReturn2008>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003638_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.1309</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0014</rr:AnnualReturn2010>
  <rr:BarChartHeading contextRef="Duration_02May2011_01May2012S000003635_Member">CALENDAR YEARS ENDED DECEMBER 31</rr:BarChartHeading>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003638_Member">you could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003638_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member">Lowest</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member">2010-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.038</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.026</rr:AnnualReturn2005>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.032</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">-0.0179</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.1275</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0041</rr:AnnualReturn2010>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003638_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0865</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003635_MemberC000010101_Member" unitRef="pure">0.0836</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003635_MemberC000010101_Member" unitRef="pure">0.0676</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0758</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0515</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0453</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003635_MemberC000010101_Member" unitRef="pure">0.0446</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003635_MemberC000010101_Member" unitRef="pure">0.0441</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0528</rr:AverageAnnualReturnSinceInception>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">As with most bond funds, the value of your investment will fluctuate with changes in interest rates. This means that you could lose money on your investment in the Series or the Series could underperform if any of the following occurs: &lt;ul type="square"&gt;&lt;li&gt;Interest rates go up, which will make bond prices go down and reduce the value of the Series&amp;#146; portfolio. The risk will be higher when the Series is invested in longer-term bonds than when it is invested in bonds with shorter maturities, because longer-term bonds are generally more sensitive to interest rate changes. Changes in the value of portfolio securities will not affect interest income derived from those securities, but will affect the value of the Series&amp;#146; portfolio. &lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The issuer of a bond owned by the Series defaults on its obligation to pay principal or interest or has its credit rating downgraded. &lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s judgments about the attractiveness, relative value or potential appreciation of a particular security or sector prove to be incorrect. &lt;/li&gt;&lt;/ul&gt;In addition to the general risks of bond funds, the Series is subject to the following additional risks due to its focus on municipal bonds:  &lt;ul type="square"&gt;&lt;li&gt;Changes in the financial condition of municipal issuers may adversely affect the value of the Series&amp;#146; securities. &lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li&gt;Economic or political changes may affect the ability of issuers of municipal securities to repay principal and to make interest payments on securities owned by the Series. &lt;/li&gt;&lt;/ul&gt; &lt;ul type="square"&gt;&lt;li&gt;Poor statewide or local economic results or changing political sentiments may reduce tax revenues and increase the expenses of municipal issuers,making it more difficult for them to meet their obligations. &lt;/li&gt;&lt;/ul&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#146; management or performance.&lt;br/&gt;&lt;br/&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#146; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#146; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#146; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#146; performance and increase the likelihood of capital gain distributions for remaining shareholders.&lt;br /&gt;&lt;br /&gt;The risks above could contribute to a decline in the value of the Series&amp;#146; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003635_Member">you could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02May2011_01May2012S000003635_Member">Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02May2011_01May2012S000003635_Member">The 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.</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedDiversifiedTaxExemptSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedOhioTaxExemptSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_02May2011_01May2012S000003630_Member">You could lose money on your investment in the Series</rr:RiskLoseMoney>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedTechnologySeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleAverageAnnualTotalReturnsTransposedLifeSciencesSeries column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">As with any stock fund, the value of your investment will fluctuate in response to stock market movements. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:&lt;ul type="square"&gt;&lt;li&gt;U.S. and/or foreign stock markets go down.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;An adverse event, such as an unfavorable earnings report, depresses the value of one or more of the Series&amp;#146; portfolio holdings.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Advisor&amp;#146;s judgments about the attractiveness, relative value or potential appreciation of a strategy or security prove to be incorrect.&lt;/li&gt;&lt;/ul&gt;In addition to the general risks of stock funds, the Series has special risks due to its concentration in securities of issuers in life sciences or related industries. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of life science-related companies may underperform other sectors or the market as a whole.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of life science-related companies may experience greater price volatility than other types of common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Life science-related stocks may be particularly sensitive to changes in the regulatory and economic environment.&lt;/li&gt;&lt;/ul&gt;Because the Series may invest in foreign stocks and ADRs, it is subject to the following additional risks:&lt;ul type="square"&gt;&lt;li&gt;The prices of foreign common stocks may, at times, move in a different direction than the prices of U.S. common stocks.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Because the Series&amp;#146; investments in foreign securities may be denominated in the currencies of the countries in which they are located, the value of the Series may be affected by changes in exchange rates between those foreign currencies and the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The Series may also have special risks due to its investments in emerging market countries. In addition to the risks discussed above relating to investments in foreign companies located in developed countries, the Series&amp;#146; investments in emerging market countries are subject to the following risks:&lt;ul type="square"&gt;&lt;li&gt;Emerging markets may be more likely to experience political turmoil or rapid changes in market or economic conditions than more developed countries.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Emerging market countries often have less uniformity in accounting and reporting requirements and unreliable securities valuation.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;It is sometimes difficult to obtain and enforce court judgments in emerging market countries and there is often a greater potential for nationalization and/or expropriation of assets by the government of an emerging market country.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;There will tend to be an increased risk of price volatility associated with the Series&amp;#146; investments in emerging market countries, which may be magnified by currency fluctuations relative to the U.S. dollar.&lt;/li&gt;&lt;/ul&gt;The Series may also have special risks due to its investments in stocks of small and mid-size companies. These risks include the following:&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be subject to more abrupt or erratic market movements than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The stocks of small and mid-size companies may be less marketable than the stocks of larger companies.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;Small and mid-size companies may have limited product lines, markets, or financial resources, and they may depend on a small management group. As a result, they fail more often than larger companies. &lt;/li&gt;&lt;/ul&gt;The Series is subject to the following risks due to its ability to invest in options:&lt;ul type="square"&gt;&lt;li&gt;Options, like all derivatives, can be extremely sensitive to changes in the market value of the underlying investment, and changes in the value of an option may not correlate perfectly with the underlying investment.&lt;/li&gt;&lt;/ul&gt;&lt;ul type="square"&gt;&lt;li&gt;The Series may not be able to receive amounts payable to it under its options contracts as quickly as it may be able to sell or otherwise obtain payments from other investments, so the Series&amp;#146; investments in options contracts may not be as liquid as the Series&amp;#146; other investments.&lt;/li&gt;&lt;/ul&gt;The Series may purchase shares issued as part of, or a short period after, a company&amp;#146;s initial public offering (IPO), and may at times dispose of those shares shortly after their acquisition. The Series&amp;#146; purchase of shares issued in IPOs exposes it to the risks associated with companies that have little operating history as public companies, as well as to the risks inherent in those sectors of the market where these new issuers operate. The market for IPO issuers has been volatile, and share prices of newly-public companies have fluctuated significantly over short periods of time.&lt;br /&gt;&lt;br /&gt;The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities.&lt;br /&gt;&lt;br /&gt;The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series&amp;#146; management or performance.&lt;br /&gt;&lt;br /&gt;Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series&amp;#146; shares. Redemptions by these institutions or individuals in the Series may impact the Series&amp;#146; liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series&amp;#146; portfolio turnover rate and transaction costs to rise, which may negatively affect the Series&amp;#146; performance and increase the likelihood of capital gain distributions for remaining shareholders. &lt;br /&gt;&lt;br /&gt;The risks above could contribute to a decline in the value of the Series&amp;#146; investments and, consequently, the share price of the Series.</rr:RiskNarrativeTextBlock>
  <rr:AnnualReturn2004 xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure" />
  <rr:AnnualReturn2005 xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure" />
  <rr:AnnualReturn2007 xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure" />
  <rr:AnnualReturn2008 xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure" />
  <rr:AnnualReturn2009 xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure" />
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="USD">1340</rr:ExpenseExampleYear10>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">The Series&amp;#146; investment objective is to provide long-term total return by investing primarily in fixed income securities.</rr:ObjectivePrimaryTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">-0.0254</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">-0.0333</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">-0.0218</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberMsciAllCountryWorldIndexExUsIndex_MemberClassProspectus_Member" unitRef="pure">-0.0292</rr:AverageAnnualReturnYear05>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">The Series&amp;#146; investment objective is to provide a high level of long-term total return by investing principally in non-investment grade fixed income securities that are issued by government and corporate entities.</rr:ObjectivePrimaryTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">The Series&amp;#146; investment objective is to provide long-term growth by investing principally in the common stocks of companies located outside the United States.</rr:ObjectivePrimaryTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000032512_Member">The Series&amp;#146; investment objective is to provide long-term growth.</rr:ObjectivePrimaryTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">The Series&amp;#146; investment objective is to provide long-term growth by investing principally in the common stocks of companies in the life sciences industry.</rr:ObjectivePrimaryTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">The Series&amp;#146; investment objective is to provide long-term growth by investing principally in the common stocks of companies in the financial services industry.</rr:ObjectivePrimaryTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.007</rr:ManagementFeesOverAssets>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">The Series&amp;#146; investment objective is to provide long-term total return by investing principally in fixed income securities of issuers located anywhere in the world.</rr:ObjectivePrimaryTextBlock>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000032512_MemberC000100293_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">The Series&amp;#146; investment objective is to provide long-term growth by investing principally in the common stocks of companies with small market capitalizations.</rr:ObjectivePrimaryTextBlock>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_48" decimals="4" contextRef="Duration_02May2011_01May2012S000032512_MemberC000100293_Member" unitRef="pure">0.0008</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ManagementFeesOverAssets id="Item_49" decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets id="Item_50" decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="USD">942</rr:ExpenseExampleYear10>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000032513_Member">The Series&amp;#146; investment objective is to provide long-term growth and inflation protection primarily through investment in equity securities that are expected to benefit from an inflationary environment.</rr:ObjectivePrimaryTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">The Series&amp;#146; investment objective is to provide long-term growth by investing principally in the common stocks of companies in technology-based industries.</rr:ObjectivePrimaryTextBlock>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">0.3388</rr:AnnualReturn2006>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="pure">0.0003</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.0003</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">The Series&amp;#146; investment objective is to provide high current income and long-term capital appreciation by investing principally in companies in the real estate industry.</rr:ObjectivePrimaryTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003628_Member">The Series&amp;#146; investment objective is to provide long-term growth by investing principally in the securities of companies in commodities-based industries.</rr:ObjectivePrimaryTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003632_Member" unitRef="pure">0.35</rr:PortfolioTurnoverRate>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="USD">1363</rr:ExpenseExampleYear10>
  <rr:ManagementFeesOverAssets id="Item_51" decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets id="Item_52" decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000032513_MemberC000100294_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets id="Item_53" decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets id="Item_54" decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003628_MemberC000010090_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_55" decimals="4" contextRef="Duration_02May2011_01May2012S000032513_MemberC000100294_Member" unitRef="pure">0.0002</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="USD">1386</rr:ExpenseExampleYear10>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">The Series&amp;#146; investment objective is to provide as high a level of current income exempt from federal income tax and New York State personal income tax as the Advisor believes is consistent with the preservation of capital.</rr:ObjectivePrimaryTextBlock>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003637_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">The Series&amp;#146; investment objective is to provide long-term growth by investing principally in the common stocks of companies located around the world.</rr:ObjectivePrimaryTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.01</rr:ManagementFeesOverAssets>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003632_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003630_MemberC000109539_Member" unitRef="USD">1149</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="USD">1438</rr:ExpenseExampleYear10>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000032512_Member" unitRef="pure">0</rr:PortfolioTurnoverRate>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003633_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003627_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.005</rr:ManagementFeesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0003</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003634_MemberC000116786_Member" unitRef="USD">1084</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="USD">1375</rr:ExpenseExampleYear10>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member" unitRef="pure">0.52</rr:PortfolioTurnoverRate>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="USD">1363</rr:ExpenseExampleYear10>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003632_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each full calendar year since its inception. The total return table shows how the average annual total returns for the Series for different periods compare to those of a broad-based securities index. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003645_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="USD">798</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000025218_MemberC000116787_Member" unitRef="USD">1155</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="USD">1443</rr:ExpenseExampleYear10>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003634_Member" unitRef="pure">0.63</rr:PortfolioTurnoverRate>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0348</rr:AnnualReturn2006>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.0459</rr:AnnualReturn2006>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000032512_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003628_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000032513_Member" unitRef="pure">0.09</rr:PortfolioTurnoverRate>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member" unitRef="pure">0.75</rr:PortfolioTurnoverRate>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">0.0431</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003637_MemberC000010107_Member" unitRef="pure">0.0424</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003637_MemberC000010107_Member" unitRef="pure">0.0418</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0547</rr:AverageAnnualReturnYear05>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="USD">1386</rr:ExpenseExampleYear10>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">-0.0342</rr:BarChartLowestQuarterlyReturn>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003626_Member" unitRef="pure">0.81</rr:PortfolioTurnoverRate>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003627_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each full calendar year since its inception. The total return table shows how the average annual total returns for the Series for different periods compare to those of a broad-based securities index and the S&amp;amp;P 500&lt;sup style="vertical-align:baseline; position:relative; bottom:.8ex"&gt;&amp;reg;&lt;/sup&gt; Financial Services Index, which is a sub-index of the S&amp;amp;P 500&lt;sup style="vertical-align:baseline; position:relative; bottom:.8ex"&gt;&amp;reg;&lt;/sup&gt; Total Return Index that includes the stocks of companies involved in the business of financial related products and services and therefore provides information on the performance of the financial services sector of the market. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberC000010098_Member" unitRef="pure">0.069</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003632_MemberC000010098_Member" unitRef="pure">0.051</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003632_MemberC000010098_Member" unitRef="pure">0.0492</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003632_MemberBankOfAmericaMerrillLynchUsCorporateGovernmentAndMortgageIndex_Member" unitRef="pure">0.0658</rr:AverageAnnualReturnYear05>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003637_Member" unitRef="pure">0.48</rr:PortfolioTurnoverRate>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003634_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000025218_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003633_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each full calendar year during which it has been active during the past ten calendar years. The Series was previously active from October 31, 1997 to February 28, 2003. The Series was redeemed in full on February 28, 2003, and was not active between that date and December 31, 2011. The total return table shows how the average annual total return for the period of its previous activation compares to those of a broad-based securities index. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.</rr:PerformanceNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000032513_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003630_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">0.1962</rr:AnnualReturn2006>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">The bar chart and average annual total return table provide some indication of the risks of investing in Class A shares of the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class A shares of the Series for each of the last ten calendar years. The total return table shows how the average annual total returns for the Class A shares of the Series for different periods compare to those of a broad-based securities index and the Russell 2000&lt;sup style="vertical-align:baseline; position:relative; bottom:.8ex"&gt;&amp;reg;&lt;/sup&gt; Index, an unmanaged index of small company stocks, which provides information on the performance of the small cap sector of the market. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">-0.1259</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003627_MemberC000010089_Member" unitRef="pure">-0.1314</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003627_MemberC000010089_Member" unitRef="pure">-0.1015</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberSPFiveHundredIndex_Member" unitRef="pure">-0.0024</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberSPFiveHundredFinancialServicesIndex_Member" unitRef="pure">-0.1681</rr:AverageAnnualReturnYear05>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003630_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. No Class I shares were outstanding during the past year. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class S shares of the Series for each of the last ten calendar years. Because the Class I shares of the Series invest in the same portfolio of securities, returns for the Class I shares will be substantially similar to those of the Class S shares. Performance will be different only to the extent that the Class I shares have lower expenses. The total return table shows how the average annual total returns for the Class S shares for different periods compare to those of a broad-based securities index and the MSCI All Country World Index ex US, a free float adjusted market-capitalization-weighted index that is designed to measure equity performance in the global developed and emerging markets and therefore provides information on the performance of foreign stocks. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003645_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each of the last ten calendar years. The Series was previously active from October 7, 1992 to September 21, 1995. The Series was redeemed in full on September 21, 1995 and was reactivated on November 5, 1999. The total return table shows how the average annual total returns for the Series for different periods compare to those of a broad-based securities index and the S&amp;amp;P 500&lt;font style="font-family:ARIAL" size="1" color="#262626"&gt;&lt;sup style="vertical-align:baseline; position:relative; bottom:.8ex"&gt;&amp;reg;&lt;/sup&gt;&lt;/font&gt; Health Care Index, a sub-index of the S&amp;amp;P 500&lt;font style="font-family:ARIAL" size="1" color="#262626"&gt;&lt;sup style="vertical-align:baseline; position:relative; bottom:.8ex"&gt;&amp;reg;&lt;/sup&gt;&lt;/font&gt; Total Return Index that includes the stocks of companies involved in the business of health care related products and services and therefore provides information on the performance of the health care sector of the market. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003629_MemberClassProspectus_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Class A shares of the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class A shares of the Series for each of the last ten calendar years. The total return table shows how the average annual total returns for the Class A shares of the Series for different periods compare to those of a broad-based securities index. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000032512_Member">As of the date of this prospectus, the Series had not been active for a full calendar year; therefore, no performance information is provided.</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceOneYearOrLess contextRef="Duration_02May2011_01May2012S000032512_Member">As of the date of this prospectus, the Series had not been active for a full calendar year; therefore, no performance information is provided.</rr:PerformanceOneYearOrLess>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.3279</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.1252</rr:AnnualReturn2006>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">0.2196</rr:AnnualReturn2006>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003628_Member">The Series has never been active as of the date of this prospectus; therefore, no performance information is provided.</rr:PerformanceNarrativeTextBlock>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure">0.0068</rr:BarChartLowestQuarterlyReturn>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.0557</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.0623</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">-0.0481</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_MemberSPFiveHundredIndex_Member" unitRef="pure">-0.0024</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_MemberRussellTwoThousandIndex_Member" unitRef="pure">0.0015</rr:AverageAnnualReturnYear05>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003629_MemberC000010095_MemberClassProspectus_Member" unitRef="pure">-0.243</rr:BarChartLowestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">-0.2838</rr:BarChartLowestQuarterlyReturn>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003627_Member" unitRef="pure">0.56</rr:PortfolioTurnoverRate>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">The Series&amp;#146; investment objective is to provide long-term total return by investing primarily in fixed income securities.</rr:ObjectivePrimaryTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. No Class I shares were outstanding during the calendar year ended December 31, 2011. Because the Class S shares of the Series invest in the same portfolio of securities, returns for the Class I shares will be substantially similar to those of the Class S shares. Performance will be different only to the extent that the Class I shares have lower expenses. The bar chart shows the performance of the Class S Shares of the Series (formerly Class A Shares) for each full calendar year since its inception. The total return table shows how the average annual total returns for the Class S Shares of the Series for different periods compare to those of a broad-based securities index and the MSCI U.S. Real Estate Investment Trust (REIT) Index, which is a free float-adjusted market capitalization weighted index that is comprised of equity REITs that are included in the MSCI U.S. Investable Market 2500 Index, with the exception of specialty equity REITs that do not generate a majority of their revenue and income from real estate rental and leasing operations. The MSCI U.S. REIT Index provides information on the performance of the real estate sector of the market. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceOneYearOrLess contextRef="Duration_02May2011_01May2012S000003628_Member">The Series has never been active as of the date of this prospectus; therefore, no performance information is provided.</rr:PerformanceOneYearOrLess>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. No Class I shares were outstanding during the calendar year ended December 31, 2011. Because the Class S shares of the Series invest in the same portfolio of securities, returns for the Class I shares will be substantially similar to those of the Class S shares. Performance will be different only to the extent that the Class I shares have lower expenses. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class S Shares of the Series for each full calendar year during which it has been active during the past ten calendar years. The Class S shares were formerly known as the High Yield Bond Series, with no class designation. The Series was previously active from March 3, 2003 to September 15, 2004. The Series was redeemed in full on September 15, 2004 and was reactivated on September 14, 2009. For years in which the Series was inactive or was not active for a full calendar year, no performance information is shown in the bar chart. Because the High Yield Bond Series has had several periods of activation and deactivation, its performance is not comparable to the performance of other mutual funds. The total return table shows how the average annual total returns for the Class S Shares of the Series for different periods compare to those of a broad-based securities index. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberC000010131_Member" unitRef="pure">0.0181</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003645_MemberC000010131_Member" unitRef="pure">0.0125</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003645_MemberC000010131_Member" unitRef="pure">0.0136</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberSPFiveHundredIndex_Member" unitRef="pure">-0.0024</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003645_MemberSAndPFiveHundredHealthCareIndex_Member" unitRef="pure">0.0286</rr:AverageAnnualReturnYear05>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003631_Member" unitRef="pure">0.18</rr:PortfolioTurnoverRate>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003631_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each full calendar year since its inception. The total return table shows how the average annual total returns for the Series for different periods compare to those of a broad-based securities index. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003630_Member" unitRef="pure">0.07</rr:PortfolioTurnoverRate>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">-0.2304</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0451</rr:AnnualReturn2006>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberC000010096_Member" unitRef="pure">-0.0025</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003630_MemberC000010096_Member" unitRef="pure">-0.0118</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003630_MemberC000010096_Member" unitRef="pure">-0.0046</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberSPFiveHundredIndex_Member" unitRef="pure">-0.0024</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003630_MemberMsciAllCountryWorldIndexExUsIndex_Member" unitRef="pure">-0.0292</rr:AverageAnnualReturnYear05>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">-0.038</rr:BarChartLowestQuarterlyReturn>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000032513_Member">As of the date of this prospectus, the Series had not been active for a full calendar year; therefore, no performance information is provided.</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003627_MemberC000010089_Member" unitRef="pure">-0.2842</rr:BarChartLowestQuarterlyReturn>
  <rr:PerformanceOneYearOrLess contextRef="Duration_02May2011_01May2012S000032513_Member">As of the date of this prospectus, the Series had not been active for a full calendar year; therefore, no performance information is provided.</rr:PerformanceOneYearOrLess>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0662</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003631_MemberC000010097_Member" unitRef="pure">0.0509</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003631_MemberC000010097_Member" unitRef="pure">0.0479</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberBankOfAmericaMerrillLynchUsCorporateGovernmentAndMortgageIndex_Member" unitRef="pure">0.0658</rr:AverageAnnualReturnYear05>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000025218_MemberC000075173_Member" unitRef="pure">-0.1529</rr:BarChartLowestQuarterlyReturn>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003637_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each of the last ten calendar years. The total return table shows how the average annual total returns for the Series for different periods compare to those of a broad-based securities index. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure">-0.0414</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003644_MemberC000010130_MemberClassProspectus_Member" unitRef="pure">0.1806</rr:AnnualReturn2006>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.006</rr:ManagementFeesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="pure">0.0001</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003626_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000032513_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleTransposedInflationFocusEquitySeries column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003626_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each of the last ten calendar years. The Series was previously active from August 29, 1994 to April 16, 1997. The Series was redeemed in full on April 16, 1997 and was reactivated on August 8, 2000. The total return table shows how the average annual total returns for the Series for different periods compare to those of a broad-based securities index and the S&amp;amp;P 500&lt;sup style="vertical-align:baseline; position:relative; bottom:.8ex"&gt;&amp;reg;&lt;/sup&gt; Information Technology Index, which is a sub-index of the S&amp;amp;P 500&lt;sup style="vertical-align:baseline; position:relative; bottom:.8ex"&gt;&amp;reg;&lt;/sup&gt; Total Return Index that includes the stocks of companies involved in the business of technology-related products and services, and therefore provides information on the performance of the technology sector of the market. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003631_MemberC000010097_Member" unitRef="USD">894</rr:ExpenseExampleYear10>
  <rr:AnnualReturn2006 id="Item_56" xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure" />
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</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.2437</rr:AnnualReturn2006>
  <mnfi8:PreviousActivation decimals="4" contextRef="Duration_02May2011_01May2012S000003633_MemberC000010099_Member" unitRef="pure">0.039</mnfi8:PreviousActivation>
  <mnfi8:PreviousActivation decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003633_MemberC000010099_Member" unitRef="pure">0.0174</mnfi8:PreviousActivation>
  <mnfi8:PreviousActivation decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003633_MemberC000010099_Member" unitRef="pure">0.0203</mnfi8:PreviousActivation>
  <mnfi8:PreviousActivation decimals="4" contextRef="Duration_02May2011_01May2012S000003633_MemberMerrillLynchGlobalBroadMarketIndex_Member" unitRef="pure">0.0618</mnfi8:PreviousActivation>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003645_Member" unitRef="pure">0.84</rr:PortfolioTurnoverRate>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">-0.2919</rr:BarChartLowestQuarterlyReturn>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000003644_MemberClassProspectus_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleTransposedSmallCapSeries column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
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</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberC000010088_Member" unitRef="pure">0.0286</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003626_MemberC000010088_Member" unitRef="pure">0.0223</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003626_MemberC000010088_Member" unitRef="pure">0.0226</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberSPFiveHundredIndex_Member" unitRef="pure">-0.0024</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003626_MemberSPFiveHundredInformationTechnologyIndex_Member" unitRef="pure">0.0385</rr:AverageAnnualReturnYear05>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000003631_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleTransposedCoreBondSeries column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003637_MemberC000010107_Member" unitRef="pure">-0.0527</rr:BarChartLowestQuarterlyReturn>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">The Series&amp;#146; investment objective is to provide as high a level of current income exempt from federal income tax and Ohio State personal income tax as the Advisor believes is consistent with the preservation of capital.</rr:ObjectivePrimaryTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.005</rr:ManagementFeesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0002</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="USD">1014</rr:ExpenseExampleYear10>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0443</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003638_MemberC000010108_Member" unitRef="pure">0.0439</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003638_MemberC000010108_Member" unitRef="pure">0.0429</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0547</rr:AverageAnnualReturnYear05>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.005</rr:ManagementFeesOverAssets>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003635_Member" unitRef="pure">0.6</rr:PortfolioTurnoverRate>
  <rr:AcquiredFundFeesAndExpensesOverAssets decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0002</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="USD">750</rr:ExpenseExampleYear10>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003635_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">The Series&amp;#146; investment objective is to provide as high a level of current income exempt from federal income tax as the Advisor believes is consistent with the preservation of capital.</rr:ObjectivePrimaryTextBlock>
  <rr:RiskHeading contextRef="Duration_02May2011_01May2012S000003638_Member">Principal Risks of Investing in the Series</rr:RiskHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003635_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each of the last ten calendar years. The total return table shows how the average annual total returns for the Series for different periods compare to those of a broad-based securities index. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">The bar chart and average annual total return table provide some indication of the risks of investing in the Series. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Series for each of the last ten calendar years. The total return table shows how the average annual total returns for the Series for different periods compare to those of a broad-based securities index. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.</rr:PerformanceNarrativeTextBlock>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0319</rr:AnnualReturn2006>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000003638_Member" unitRef="pure">0.53</rr:PortfolioTurnoverRate>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">-0.0586</rr:BarChartLowestQuarterlyReturn>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member">Highest</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">-0.0552</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02May2011_01May2012S000003638_MemberC000010108_Member" unitRef="pure">0.0394</rr:AnnualReturn2006>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberC000010101_Member" unitRef="pure">0.0454</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributions_MemberS000003635_MemberC000010101_Member" unitRef="pure">0.0443</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012AfterTaxesOnDistributionsAndSales_MemberS000003635_MemberC000010101_Member" unitRef="pure">0.0434</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02May2011_01May2012S000003635_MemberBankOfAmericaMerrillLynchYearMunicipalBondIndex_Member" unitRef="pure">0.0547</rr:AverageAnnualReturnYear05>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000003638_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleTransposedDiversifiedTaxExemptSeries column period compact * ~&lt;/div&gt;

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</rr:ExpenseExampleWithRedemptionTableTextBlock>
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</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000003634_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleHighYieldBondSeries column period compact * ~&lt;/div&gt;

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  <rr:AnnualReturn2006 xsi:nil="true" contextRef="Duration_02May2011_01May2012S000003634_MemberC000010100_Member" unitRef="pure" />
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02May2011_01May2012S000025218_Member" unitRef="pure">0.34</rr:PortfolioTurnoverRate>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02May2011_01May2012S000025218_Member">&lt;div style="display:none"&gt;~ http://www.manning-napier.com/role/ScheduleExpenseExampleRealEstateSeries column period compact * ~&lt;/div&gt;

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  <link:footnoteLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="#Item_10" xlink:label="ExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_ExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_ExpensesOverAssets">The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series' financial statements) because the financial highlights include only the Series' direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.  </link:footnote>
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    <link:loc xlink:type="locator" xlink:href="#Item_45" xlink:label="Item_45_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_46" xlink:label="Item_46_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_46_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_47" xlink:label="Item_47_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_47_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <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_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <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">Manning &amp; Napier Advisors, LLC (the Advisor) has contractually agreed to limit its fees and reimburse expenses to the extent necessary so that the Series' total direct annual fund operating expenses do not exceed 1.20% of the Series' average daily net assets. This contractual waiver will continue for a period of one year until at least April 30, 2013 and may not be amended or terminated by the Advisor prior to such date without the approval of the Series' Board of Directors.  </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_12_lbl" xlink:to="footnote_NetExpensesOverAssets_2" order="2.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_16" xlink:label="Item_16_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_16_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:footnote xlink:type="resource" xlink:label="footnote_NetExpensesOverAssets_2_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_NetExpensesOverAssets_2_2">Effective December 31, 2011, Manning &amp; Napier Advisors, LLC (the Advisor) has contractually agreed to limit its fees and reimburse expenses to the extent necessary so that the total direct annual fund operating expenses, exclusive of a Class's Shareholder Services Fee, do not exceed 0.85% of each Class's average daily net assets. This contractual waiver will continue until at least April 30, 2013 and may not be amended or terminated by the Advisor prior to such date without the approval of the Series' Board of Directors. </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_16_lbl" xlink:to="footnote_NetExpensesOverAssets_2_2" order="2.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_17" xlink:label="Item_17_lbl" />
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    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_17_lbl" xlink:to="footnote_NetExpensesOverAssets_2_2" use="optional" priority="0" order="2.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_21" xlink:label="Item_21_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_21_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_21_lbl" xlink:to="footnote_NetExpensesOverAssets_2" use="optional" priority="0" order="2.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_11" 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 and AFFE are based on estimated amounts for the current fiscal year.  </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="OtherExpensesOverAssets" xlink:to="footnote_OtherExpensesOverAssets" />
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    <link:loc xlink:type="locator" xlink:href="#Item_48" xlink:label="Item_48_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_48_lbl" xlink:to="footnote_OtherExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_55" xlink:label="Item_55_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_55_lbl" xlink:to="footnote_OtherExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_18" xlink:label="OtherExpensesOverAssets_2" />
    <link:footnote xlink:type="resource" xlink:label="footnote_OtherExpensesOverAssets_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_OtherExpensesOverAssets_2">Other expenses are based on estimated expenses for the current fiscal year.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="OtherExpensesOverAssets_2" xlink:to="footnote_OtherExpensesOverAssets_2" />
    <link:loc xlink:type="locator" xlink:href="#Item_49" xlink:label="ManagementFeesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_ManagementFeesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_ManagementFeesOverAssets">Management fees have been restated to reflect contractual changes to the management fees paid by the Series.  </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="ManagementFeesOverAssets" xlink:to="footnote_ManagementFeesOverAssets" />
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    <link:loc xlink:type="locator" xlink:href="#Item_51" xlink:label="Item_51_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_52" xlink:label="Item_52_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_53" xlink:label="Item_53_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_53_lbl" xlink:to="footnote_ManagementFeesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_54" xlink:label="Item_54_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_54_lbl" xlink:to="footnote_ManagementFeesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_3" xlink:label="Component1OtherExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_Component1OtherExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_Component1OtherExpensesOverAssets">Other expenses have been restated to reflect the implementation of a 0.25% shareholder services fee for the Series' Class S shares.  </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_8" xlink:label="Item_8_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_35" xlink:label="Item_35_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_35_lbl" xlink:to="footnote_Component1OtherExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_27" xlink:label="OtherExpensesOverAssets_3" />
    <link:footnote xlink:type="resource" xlink:label="footnote_OtherExpensesOverAssets_3" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_OtherExpensesOverAssets_3">Other expenses are based on estimated amounts for the current fiscal year.  </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="OtherExpensesOverAssets_3" xlink:to="footnote_OtherExpensesOverAssets_3" />
    <link:loc xlink:type="locator" xlink:href="#Item_2" xlink:label="AnnualReturn2003" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AnnualReturn2003" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AnnualReturn2003">The Global Fixed Income Series was redeemed in full on February 28, 2003 and was either inactive or not active for the full calendar year; therefore, no performance information has been provided. Because the Global Fixed Income Series has had several periods of activation and deactivation, its performance is not comparable to the performance of other mutual funds.</link:footnote>
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    <link:loc xlink:type="locator" xlink:href="#Item_43" xlink:label="Item_43_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_44" xlink:label="Item_44_lbl" />
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