<?xml version='1.0' encoding='UTF-8'?>
<FilingSummary>
  <Version>3.6.0.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>374</ContextCount>
  <ElementCount>107</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>209</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>2</UnitCount>
  <MyReports>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000001 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory></MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>020000 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX) - Neuberger Berman Dividend Growth Fund (Class A, Class C, Class Institutional)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFundClassAClassCClassInstitutional</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX) - Neuberger Berman Dividend Growth Fund (Class A, Class C, Class Institutional)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>020005 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX) - Neuberger Berman Dividend Growth Fund (Class A, Class C, Class Institutional)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFundClassAClassCClassInstitutional</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX) - Neuberger Berman Dividend Growth Fund (Class A, Class C, Class Institutional)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>020006 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NEMAX), Class C Shares (NEMCX), Institutional Class Shares (NEMIX) - Neuberger Berman Emerging Markets Equity Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NEMAX), Class C Shares (NEMCX), Institutional Class Shares (NEMIX) - Neuberger Berman Emerging Markets Equity Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>020013 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NEMAX), Class C Shares (NEMCX), Institutional Class Shares (NEMIX) - Neuberger Berman Emerging Markets Equity Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NEMAX), Class C Shares (NEMCX), Institutional Class Shares (NEMIX) - Neuberger Berman Emerging Markets Equity Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>020014 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NBHAX), Class C Shares (NBHCX), Institutional Class Shares (NBHIX) - Neuberger Berman Equity Income Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NBHAX), Class C Shares (NBHCX), Institutional Class Shares (NBHIX) - Neuberger Berman Equity Income Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>020021 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NBHAX), Class C Shares (NBHCX), Institutional Class Shares (NBHIX) - Neuberger Berman Equity Income Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NBHAX), Class C Shares (NBHCX), Institutional Class Shares (NBHIX) - Neuberger Berman Equity Income Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>020022 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX) - Neuberger Berman Focus Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX) - Neuberger Berman Focus Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>020029 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX) - Neuberger Berman Focus Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX) - Neuberger Berman Focus Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>020030 - Document - Risk/Return Summary {Unlabeled} - Institutional Class Shares (NBGIX) - Neuberger Berman Genesis Fund (Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Institutional Class Shares (NBGIX) - Neuberger Berman Genesis Fund (Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>020036 - Disclosure - Risk/Return Detail Data {Elements} - Institutional Class Shares (NBGIX) - Neuberger Berman Genesis Fund (Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Institutional Class Shares (NBGIX) - Neuberger Berman Genesis Fund (Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>020037 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NGQAX), Class C Shares (NGQCX), Institutional Class Shares (NGQIX) - Neuberger Berman Global Equity Fund</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGQAXClassCSharesNGQCXInstitutionalClassSharesNGQIXNeubergerBermanGlobalEquityFund</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NGQAX), Class C Shares (NGQCX), Institutional Class Shares (NGQIX) - Neuberger Berman Global Equity Fund</ShortName>
      <MenuCategory></MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>020044 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NGQAX), Class C Shares (NGQCX), Institutional Class Shares (NGQIX) - Neuberger Berman Global Equity Fund</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNGQAXClassCSharesNGQCXInstitutionalClassSharesNGQIXNeubergerBermanGlobalEquityFund</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NGQAX), Class C Shares (NGQCX), Institutional Class Shares (NGQIX) - Neuberger Berman Global Equity Fund</ShortName>
      <MenuCategory></MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>020045 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX) - Neuberger Berman Global Real Estate Fund</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX) - Neuberger Berman Global Real Estate Fund</ShortName>
      <MenuCategory></MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>020052 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX) - Neuberger Berman Global Real Estate Fund</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX) - Neuberger Berman Global Real Estate Fund</ShortName>
      <MenuCategory></MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>020053 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX) - Neuberger Berman Greater China Equity Fund</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX) - Neuberger Berman Greater China Equity Fund</ShortName>
      <MenuCategory></MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>020060 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX) - Neuberger Berman Greater China Equity Fund</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX) - Neuberger Berman Greater China Equity Fund</ShortName>
      <MenuCategory></MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>020061 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NGDAX), Class C Shares (NGDCX), Institutional Class Shares (NGDLX) - Neuberger Berman Guardian Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NGDAX), Class C Shares (NGDCX), Institutional Class Shares (NGDLX) - Neuberger Berman Guardian Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>020068 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NGDAX), Class C Shares (NGDCX), Institutional Class Shares (NGDLX) - Neuberger Berman Guardian Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NGDAX), Class C Shares (NGDCX), Institutional Class Shares (NGDLX) - Neuberger Berman Guardian Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>020069 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NIQAX), Class C Shares (NIQCX), Institutional Class (NBIIX) - Neuberger Berman International Equity Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NIQAX), Class C Shares (NIQCX), Institutional Class (NBIIX) - Neuberger Berman International Equity Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>020076 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NIQAX), Class C Shares (NIQCX), Institutional Class (NBIIX) - Neuberger Berman International Equity Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NIQAX), Class C Shares (NIQCX), Institutional Class (NBIIX) - Neuberger Berman International Equity Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>020077 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NBNAX), Class C Shares (NBNCX), Institutional Class Shares (NILIX) - Neuberger Berman International Select Fund (Class A, Class C, Institutional)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NBNAX), Class C Shares (NBNCX), Institutional Class Shares (NILIX) - Neuberger Berman International Select Fund (Class A, Class C, Institutional)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>020084 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NBNAX), Class C Shares (NBNCX), Institutional Class Shares (NILIX) - Neuberger Berman International Select Fund (Class A, Class C, Institutional)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NBNAX), Class C Shares (NBNCX), Institutional Class Shares (NILIX) - Neuberger Berman International Select Fund (Class A, Class C, Institutional)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>020085 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX) - Neuberger Berman Intrinsic Value Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX) - Neuberger Berman Intrinsic Value Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>020092 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX) - Neuberger Berman Intrinsic Value Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX) - Neuberger Berman Intrinsic Value Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>020093 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NPNAX), Class C Shares (NPNCX), Institutional Class Shares (NBPIX) - Neuberger Berman Large Cap Value Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NPNAX), Class C Shares (NPNCX), Institutional Class Shares (NBPIX) - Neuberger Berman Large Cap Value Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>020100 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NPNAX), Class C Shares (NPNCX), Institutional Class Shares (NBPIX) - Neuberger Berman Large Cap Value Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NPNAX), Class C Shares (NPNCX), Institutional Class Shares (NBPIX) - Neuberger Berman Large Cap Value Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>020101 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NMGAX), Class C Shares (NMGCX), Institutional Class Shares (NBMLX) - Neuberger Berman Mid Cap Growth Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NMGAX), Class C Shares (NMGCX), Institutional Class Shares (NBMLX) - Neuberger Berman Mid Cap Growth Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>020108 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NMGAX), Class C Shares (NMGCX), Institutional Class Shares (NBMLX) - Neuberger Berman Mid Cap Growth Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NMGAX), Class C Shares (NMGCX), Institutional Class Shares (NBMLX) - Neuberger Berman Mid Cap Growth Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>020109 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NBRAX), Class C Shares (NBRCX), Institutional Class Shares (NBRTX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NBRAX), Class C Shares (NBRCX), Institutional Class Shares (NBRTX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R118.htm</HtmlFileName>
      <LongName>020116 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NBRAX), Class C Shares (NBRCX), Institutional Class Shares (NBRTX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NBRAX), Class C Shares (NBRCX), Institutional Class Shares (NBRTX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R119.htm</HtmlFileName>
      <LongName>020117 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX) - Neuberger Berman Multi-Cap Opportunities Fund</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFund</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX) - Neuberger Berman Multi-Cap Opportunities Fund</ShortName>
      <MenuCategory></MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R126.htm</HtmlFileName>
      <LongName>020124 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX) - Neuberger Berman Multi-Cap Opportunities Fund</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFund</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX) - Neuberger Berman Multi-Cap Opportunities Fund</ShortName>
      <MenuCategory></MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R127.htm</HtmlFileName>
      <LongName>020125 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) - Neuberger Berman Real Estate Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) - Neuberger Berman Real Estate Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R134.htm</HtmlFileName>
      <LongName>020132 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) - Neuberger Berman Real Estate Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) - Neuberger Berman Real Estate Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R135.htm</HtmlFileName>
      <LongName>020133 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NSNAX), Class C Shares (NSNCX), Institutional Class Shares (NBSMX) - Neuberger Berman Small Cap Growth Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NSNAX), Class C Shares (NSNCX), Institutional Class Shares (NBSMX) - Neuberger Berman Small Cap Growth Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R142.htm</HtmlFileName>
      <LongName>020140 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NSNAX), Class C Shares (NSNCX), Institutional Class Shares (NBSMX) - Neuberger Berman Small Cap Growth Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NSNAX), Class C Shares (NSNCX), Institutional Class Shares (NBSMX) - Neuberger Berman Small Cap Growth Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R143.htm</HtmlFileName>
      <LongName>020141 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX) - Neuberger Berman Socially Responsive Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSociallyResponsiveFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX) - Neuberger Berman Socially Responsive Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R150.htm</HtmlFileName>
      <LongName>020148 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX) - Neuberger Berman Socially Responsive Fund (Class A, Class C, Institutional Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSociallyResponsiveFundClassAClassCInstitutionalClass</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX) - Neuberger Berman Socially Responsive Fund (Class A, Class C, Institutional Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R151.htm</HtmlFileName>
      <LongName>020149 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NVAAX), Class C Shares (NVACX), Institutional Class Shares (NLRLX) - Neuberger Berman Value Fund</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesNVAAXClassCSharesNVACXInstitutionalClassSharesNLRLXNeubergerBermanValueFund</Role>
      <ShortName>Risk/Return Summary- Class A Shares (NVAAX), Class C Shares (NVACX), Institutional Class Shares (NLRLX) - Neuberger Berman Value Fund</ShortName>
      <MenuCategory></MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R158.htm</HtmlFileName>
      <LongName>020156 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NVAAX), Class C Shares (NVACX), Institutional Class Shares (NLRLX) - Neuberger Berman Value Fund</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesNVAAXClassCSharesNVACXInstitutionalClassSharesNLRLXNeubergerBermanValueFund</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (NVAAX), Class C Shares (NVACX), Institutional Class Shares (NLRLX) - Neuberger Berman Value Fund</ShortName>
      <MenuCategory></MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R159.htm</HtmlFileName>
      <LongName>020157 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NEMRX) - Neuberger Berman Emerging Markets Equity Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3</Role>
      <ShortName>Risk/Return Summary- Class R3 Shares (NEMRX) - Neuberger Berman Emerging Markets Equity Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R165.htm</HtmlFileName>
      <LongName>020163 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NEMRX) - Neuberger Berman Emerging Markets Equity Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3</Role>
      <ShortName>Risk/Return Detail Data- Class R3 Shares (NEMRX) - Neuberger Berman Emerging Markets Equity Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R166.htm</HtmlFileName>
      <LongName>020164 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NBHRX) - Neuberger Berman Equity Income Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3</Role>
      <ShortName>Risk/Return Summary- Class R3 Shares (NBHRX) - Neuberger Berman Equity Income Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R172.htm</HtmlFileName>
      <LongName>020170 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NBHRX) - Neuberger Berman Equity Income Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3</Role>
      <ShortName>Risk/Return Detail Data- Class R3 Shares (NBHRX) - Neuberger Berman Equity Income Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R173.htm</HtmlFileName>
      <LongName>020171 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NGDRX) - Neuberger Berman Guardian Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3</Role>
      <ShortName>Risk/Return Summary- Class R3 Shares (NGDRX) - Neuberger Berman Guardian Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R179.htm</HtmlFileName>
      <LongName>020177 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NGDRX) - Neuberger Berman Guardian Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3</Role>
      <ShortName>Risk/Return Detail Data- Class R3 Shares (NGDRX) - Neuberger Berman Guardian Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R180.htm</HtmlFileName>
      <LongName>020178 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NBNRX) - Neuberger Berman International Select Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3</Role>
      <ShortName>Risk/Return Summary- Class R3 Shares (NBNRX) - Neuberger Berman International Select Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R186.htm</HtmlFileName>
      <LongName>020184 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NBNRX) - Neuberger Berman International Select Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3</Role>
      <ShortName>Risk/Return Detail Data- Class R3 Shares (NBNRX) - Neuberger Berman International Select Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R187.htm</HtmlFileName>
      <LongName>020185 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NPNRX) - Neuberger Berman Large Cap Value Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3</Role>
      <ShortName>Risk/Return Summary- Class R3 Shares (NPNRX) - Neuberger Berman Large Cap Value Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R193.htm</HtmlFileName>
      <LongName>020191 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NPNRX) - Neuberger Berman Large Cap Value Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3</Role>
      <ShortName>Risk/Return Detail Data- Class R3 Shares (NPNRX) - Neuberger Berman Large Cap Value Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R194.htm</HtmlFileName>
      <LongName>020192 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NMGRX) - Neuberger Berman Mid Cap Growth Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3</Role>
      <ShortName>Risk/Return Summary- Class R3 Shares (NMGRX) - Neuberger Berman Mid Cap Growth Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R200.htm</HtmlFileName>
      <LongName>020198 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NMGRX) - Neuberger Berman Mid Cap Growth Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3</Role>
      <ShortName>Risk/Return Detail Data- Class R3 Shares (NMGRX) - Neuberger Berman Mid Cap Growth Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R201.htm</HtmlFileName>
      <LongName>020199 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NBRRX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3</Role>
      <ShortName>Risk/Return Summary- Class R3 Shares (NBRRX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R207.htm</HtmlFileName>
      <LongName>020205 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NBRRX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3</Role>
      <ShortName>Risk/Return Detail Data- Class R3 Shares (NBRRX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R208.htm</HtmlFileName>
      <LongName>020206 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NRERX) - Neuberger Berman Real Estate Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3</Role>
      <ShortName>Risk/Return Summary- Class R3 Shares (NRERX) - Neuberger Berman Real Estate Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R214.htm</HtmlFileName>
      <LongName>020212 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NRERX) - Neuberger Berman Real Estate Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3</Role>
      <ShortName>Risk/Return Detail Data- Class R3 Shares (NRERX) - Neuberger Berman Real Estate Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R215.htm</HtmlFileName>
      <LongName>020213 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NSNRX) - Neuberger Berman Small Cap Growth Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3</Role>
      <ShortName>Risk/Return Summary- Class R3 Shares (NSNRX) - Neuberger Berman Small Cap Growth Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R221.htm</HtmlFileName>
      <LongName>020219 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NSNRX) - Neuberger Berman Small Cap Growth Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3</Role>
      <ShortName>Risk/Return Detail Data- Class R3 Shares (NSNRX) - Neuberger Berman Small Cap Growth Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R222.htm</HtmlFileName>
      <LongName>020220 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NRARX) - Neuberger Berman Socially Responsive Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSociallyResponsiveFundClassR3</Role>
      <ShortName>Risk/Return Summary- Class R3 Shares (NRARX) - Neuberger Berman Socially Responsive Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R228.htm</HtmlFileName>
      <LongName>020226 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NRARX) - Neuberger Berman Socially Responsive Fund (Class R3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSociallyResponsiveFundClassR3</Role>
      <ShortName>Risk/Return Detail Data- Class R3 Shares (NRARX) - Neuberger Berman Socially Responsive Fund (Class R3)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R229.htm</HtmlFileName>
      <LongName>020227 - Document - Risk/Return Summary {Unlabeled} - Investor Class Shares (NBSSX) - Neuberger Berman Focus Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledInvestorClassSharesNBSSXNeubergerBermanFocusFundInvestorClass</Role>
      <ShortName>Risk/Return Summary- Investor Class Shares (NBSSX) - Neuberger Berman Focus Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R235.htm</HtmlFileName>
      <LongName>020233 - Disclosure - Risk/Return Detail Data {Elements} - Investor Class Shares (NBSSX) - Neuberger Berman Focus Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsInvestorClassSharesNBSSXNeubergerBermanFocusFundInvestorClass</Role>
      <ShortName>Risk/Return Detail Data- Investor Class Shares (NBSSX) - Neuberger Berman Focus Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R236.htm</HtmlFileName>
      <LongName>020234 - Document - Risk/Return Summary {Unlabeled} - Investor Class Shares (NBGNX) - Neuberger Berman Genesis Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledInvestorClassSharesNBGNXNeubergerBermanGenesisFundInvestorClass</Role>
      <ShortName>Risk/Return Summary- Investor Class Shares (NBGNX) - Neuberger Berman Genesis Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R242.htm</HtmlFileName>
      <LongName>020240 - Disclosure - Risk/Return Detail Data {Elements} - Investor Class Shares (NBGNX) - Neuberger Berman Genesis Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsInvestorClassSharesNBGNXNeubergerBermanGenesisFundInvestorClass</Role>
      <ShortName>Risk/Return Detail Data- Investor Class Shares (NBGNX) - Neuberger Berman Genesis Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R243.htm</HtmlFileName>
      <LongName>020241 - Document - Risk/Return Summary {Unlabeled} - Investor Class Shares (NGUAX) - Neuberger Berman Guardian Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledInvestorClassSharesNGUAXNeubergerBermanGuardianFundInvestorClass</Role>
      <ShortName>Risk/Return Summary- Investor Class Shares (NGUAX) - Neuberger Berman Guardian Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R249.htm</HtmlFileName>
      <LongName>020247 - Disclosure - Risk/Return Detail Data {Elements} - Investor Class Shares (NGUAX) - Neuberger Berman Guardian Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsInvestorClassSharesNGUAXNeubergerBermanGuardianFundInvestorClass</Role>
      <ShortName>Risk/Return Detail Data- Investor Class Shares (NGUAX) - Neuberger Berman Guardian Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R250.htm</HtmlFileName>
      <LongName>020248 - Document - Risk/Return Summary {Unlabeled} - Investor Class Shares (NIQVX) - Neuberger Berman International Equity Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledInvestorClassSharesNIQVXNeubergerBermanInternationalEquityFundInvestorClass</Role>
      <ShortName>Risk/Return Summary- Investor Class Shares (NIQVX) - Neuberger Berman International Equity Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R256.htm</HtmlFileName>
      <LongName>020254 - Disclosure - Risk/Return Detail Data {Elements} - Investor Class Shares (NIQVX) - Neuberger Berman International Equity Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsInvestorClassSharesNIQVXNeubergerBermanInternationalEquityFundInvestorClass</Role>
      <ShortName>Risk/Return Detail Data- Investor Class Shares (NIQVX) - Neuberger Berman International Equity Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R257.htm</HtmlFileName>
      <LongName>020255 - Document - Risk/Return Summary {Unlabeled} - Investor Class Shares (NPRTX) - Neuberger Berman Large Cap Value Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledInvestorClassSharesNPRTXNeubergerBermanLargeCapValueFundInvestorClass</Role>
      <ShortName>Risk/Return Summary- Investor Class Shares (NPRTX) - Neuberger Berman Large Cap Value Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R263.htm</HtmlFileName>
      <LongName>020261 - Disclosure - Risk/Return Detail Data {Elements} - Investor Class Shares (NPRTX) - Neuberger Berman Large Cap Value Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsInvestorClassSharesNPRTXNeubergerBermanLargeCapValueFundInvestorClass</Role>
      <ShortName>Risk/Return Detail Data- Investor Class Shares (NPRTX) - Neuberger Berman Large Cap Value Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R264.htm</HtmlFileName>
      <LongName>020262 - Document - Risk/Return Summary {Unlabeled} - Investor Class Shares (NMANX) - Neuberger Berman Mid Cap Growth Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledInvestorClassSharesNMANXNeubergerBermanMidCapGrowthFundInvestorClass</Role>
      <ShortName>Risk/Return Summary- Investor Class Shares (NMANX) - Neuberger Berman Mid Cap Growth Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R270.htm</HtmlFileName>
      <LongName>020268 - Disclosure - Risk/Return Detail Data {Elements} - Investor Class Shares (NMANX) - Neuberger Berman Mid Cap Growth Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsInvestorClassSharesNMANXNeubergerBermanMidCapGrowthFundInvestorClass</Role>
      <ShortName>Risk/Return Detail Data- Investor Class Shares (NMANX) - Neuberger Berman Mid Cap Growth Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R271.htm</HtmlFileName>
      <LongName>020269 - Document - Risk/Return Summary {Unlabeled} - Investor Class Shares (NBRVX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledInvestorClassSharesNBRVXNeubergerBermanMidCapIntrinsicValueFundInvestorClass</Role>
      <ShortName>Risk/Return Summary- Investor Class Shares (NBRVX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R277.htm</HtmlFileName>
      <LongName>020275 - Disclosure - Risk/Return Detail Data {Elements} - Investor Class Shares (NBRVX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsInvestorClassSharesNBRVXNeubergerBermanMidCapIntrinsicValueFundInvestorClass</Role>
      <ShortName>Risk/Return Detail Data- Investor Class Shares (NBRVX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R278.htm</HtmlFileName>
      <LongName>020276 - Document - Risk/Return Summary {Unlabeled} - Investor Class Shares (NBMIX) - Neuberger Berman Small Cap Growth Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledInvestorClassSharesNBMIXNeubergerBermanSmallCapGrowthFundInvestorClass</Role>
      <ShortName>Risk/Return Summary- Investor Class Shares (NBMIX) - Neuberger Berman Small Cap Growth Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R284.htm</HtmlFileName>
      <LongName>020282 - Disclosure - Risk/Return Detail Data {Elements} - Investor Class Shares (NBMIX) - Neuberger Berman Small Cap Growth Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsInvestorClassSharesNBMIXNeubergerBermanSmallCapGrowthFundInvestorClass</Role>
      <ShortName>Risk/Return Detail Data- Investor Class Shares (NBMIX) - Neuberger Berman Small Cap Growth Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R285.htm</HtmlFileName>
      <LongName>020283 - Document - Risk/Return Summary {Unlabeled} - Investor Class Shares (NBSRX) - Neuberger Berman Socially Responsive Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledInvestorClassSharesNBSRXNeubergerBermanSociallyResponsiveFundInvestorClass</Role>
      <ShortName>Risk/Return Summary- Investor Class Shares (NBSRX) - Neuberger Berman Socially Responsive Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R291.htm</HtmlFileName>
      <LongName>020289 - Disclosure - Risk/Return Detail Data {Elements} - Investor Class Shares (NBSRX) - Neuberger Berman Socially Responsive Fund (Investor Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsInvestorClassSharesNBSRXNeubergerBermanSociallyResponsiveFundInvestorClass</Role>
      <ShortName>Risk/Return Detail Data- Investor Class Shares (NBSRX) - Neuberger Berman Socially Responsive Fund (Investor Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R292.htm</HtmlFileName>
      <LongName>020290 - Document - Risk/Return Summary {Unlabeled} - Advisor Class Shares (NBFAX), Trust Class Shares (NBFCX) - Neuberger Berman Focus Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledAdvisorClassSharesNBFAXTrustClassSharesNBFCXNeubergerBermanFocusFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Summary- Advisor Class Shares (NBFAX), Trust Class Shares (NBFCX) - Neuberger Berman Focus Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R298.htm</HtmlFileName>
      <LongName>020296 - Disclosure - Risk/Return Detail Data {Elements} - Advisor Class Shares (NBFAX), Trust Class Shares (NBFCX) - Neuberger Berman Focus Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsAdvisorClassSharesNBFAXTrustClassSharesNBFCXNeubergerBermanFocusFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Advisor Class Shares (NBFAX), Trust Class Shares (NBFCX) - Neuberger Berman Focus Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R299.htm</HtmlFileName>
      <LongName>020297 - Document - Risk/Return Summary {Unlabeled} - Advisor Class Shares (NBGAX), Trust Class Shares (NBGEX) - Neuberger Berman Genesis Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledAdvisorClassSharesNBGAXTrustClassSharesNBGEXNeubergerBermanGenesisFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Summary- Advisor Class Shares (NBGAX), Trust Class Shares (NBGEX) - Neuberger Berman Genesis Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R305.htm</HtmlFileName>
      <LongName>020303 - Disclosure - Risk/Return Detail Data {Elements} - Advisor Class Shares (NBGAX), Trust Class Shares (NBGEX) - Neuberger Berman Genesis Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsAdvisorClassSharesNBGAXTrustClassSharesNBGEXNeubergerBermanGenesisFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Advisor Class Shares (NBGAX), Trust Class Shares (NBGEX) - Neuberger Berman Genesis Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R306.htm</HtmlFileName>
      <LongName>020304 - Document - Risk/Return Summary {Unlabeled} - Advisor Class Shares (NBGUX), Trust Class Shares (NBGTX) - Neuberger Berman Guardian Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledAdvisorClassSharesNBGUXTrustClassSharesNBGTXNeubergerBermanGuardianFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Summary- Advisor Class Shares (NBGUX), Trust Class Shares (NBGTX) - Neuberger Berman Guardian Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R312.htm</HtmlFileName>
      <LongName>020310 - Disclosure - Risk/Return Detail Data {Elements} - Advisor Class Shares (NBGUX), Trust Class Shares (NBGTX) - Neuberger Berman Guardian Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsAdvisorClassSharesNBGUXTrustClassSharesNBGTXNeubergerBermanGuardianFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Advisor Class Shares (NBGUX), Trust Class Shares (NBGTX) - Neuberger Berman Guardian Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R313.htm</HtmlFileName>
      <LongName>020311 - Document - Risk/Return Summary {Unlabeled} - Trust Class Shares (NIQTX) - Neuberger Berman International Equity Fund (Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledTrustClassSharesNIQTXNeubergerBermanInternationalEquityFundTrustClass</Role>
      <ShortName>Risk/Return Summary- Trust Class Shares (NIQTX) - Neuberger Berman International Equity Fund (Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R319.htm</HtmlFileName>
      <LongName>020317 - Disclosure - Risk/Return Detail Data {Elements} - Trust Class Shares (NIQTX) - Neuberger Berman International Equity Fund (Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsTrustClassSharesNIQTXNeubergerBermanInternationalEquityFundTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Trust Class Shares (NIQTX) - Neuberger Berman International Equity Fund (Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R320.htm</HtmlFileName>
      <LongName>020318 - Document - Risk/Return Summary {Unlabeled} - Advisor Class Shares (NBPBX), Trust Class Shares (NBPTX) - Neuberger Berman Large Cap Value Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledAdvisorClassSharesNBPBXTrustClassSharesNBPTXNeubergerBermanLargeCapValueFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Summary- Advisor Class Shares (NBPBX), Trust Class Shares (NBPTX) - Neuberger Berman Large Cap Value Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R326.htm</HtmlFileName>
      <LongName>020324 - Disclosure - Risk/Return Detail Data {Elements} - Advisor Class Shares (NBPBX), Trust Class Shares (NBPTX) - Neuberger Berman Large Cap Value Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsAdvisorClassSharesNBPBXTrustClassSharesNBPTXNeubergerBermanLargeCapValueFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Advisor Class Shares (NBPBX), Trust Class Shares (NBPTX) - Neuberger Berman Large Cap Value Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R327.htm</HtmlFileName>
      <LongName>020325 - Document - Risk/Return Summary {Unlabeled} - Advisor Class Shares (NBMBX), Trust Class Shares (NBMTX) - Neuberger Berman Mid Cap Growth Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledAdvisorClassSharesNBMBXTrustClassSharesNBMTXNeubergerBermanMidCapGrowthFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Summary- Advisor Class Shares (NBMBX), Trust Class Shares (NBMTX) - Neuberger Berman Mid Cap Growth Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R333.htm</HtmlFileName>
      <LongName>020331 - Disclosure - Risk/Return Detail Data {Elements} - Advisor Class Shares (NBMBX), Trust Class Shares (NBMTX) - Neuberger Berman Mid Cap Growth Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsAdvisorClassSharesNBMBXTrustClassSharesNBMTXNeubergerBermanMidCapGrowthFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Advisor Class Shares (NBMBX), Trust Class Shares (NBMTX) - Neuberger Berman Mid Cap Growth Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R334.htm</HtmlFileName>
      <LongName>020332 - Document - Risk/Return Summary {Unlabeled} - Trust Class Shares (NBREX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledTrustClassSharesNBREXNeubergerBermanMidCapIntrinsicValueFundTrustClass</Role>
      <ShortName>Risk/Return Summary- Trust Class Shares (NBREX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R340.htm</HtmlFileName>
      <LongName>020338 - Disclosure - Risk/Return Detail Data {Elements} - Trust Class Shares (NBREX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsTrustClassSharesNBREXNeubergerBermanMidCapIntrinsicValueFundTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Trust Class Shares (NBREX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>93</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R341.htm</HtmlFileName>
      <LongName>020339 - Document - Risk/Return Summary {Unlabeled} - Advisor Class Shares (NBMVX), Trust Class Shares (NBMOX) - Neuberger Berman Small Cap Growth Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledAdvisorClassSharesNBMVXTrustClassSharesNBMOXNeubergerBermanSmallCapGrowthFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Summary- Advisor Class Shares (NBMVX), Trust Class Shares (NBMOX) - Neuberger Berman Small Cap Growth Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>94</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R347.htm</HtmlFileName>
      <LongName>020345 - Disclosure - Risk/Return Detail Data {Elements} - Advisor Class Shares (NBMVX), Trust Class Shares (NBMOX) - Neuberger Berman Small Cap Growth Fund (Advisor Class, Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsAdvisorClassSharesNBMVXTrustClassSharesNBMOXNeubergerBermanSmallCapGrowthFundAdvisorClassTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Advisor Class Shares (NBMVX), Trust Class Shares (NBMOX) - Neuberger Berman Small Cap Growth Fund (Advisor Class, Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R348.htm</HtmlFileName>
      <LongName>020346 - Document - Risk/Return Summary {Unlabeled} - Trust Class Shares (NBSTX) - Neuberger Berman Socially Responsive Fund (Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledTrustClassSharesNBSTXNeubergerBermanSociallyResponsiveFundTrustClass</Role>
      <ShortName>Risk/Return Summary- Trust Class Shares (NBSTX) - Neuberger Berman Socially Responsive Fund (Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R354.htm</HtmlFileName>
      <LongName>020352 - Disclosure - Risk/Return Detail Data {Elements} - Trust Class Shares (NBSTX) - Neuberger Berman Socially Responsive Fund (Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsTrustClassSharesNBSTXNeubergerBermanSociallyResponsiveFundTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Trust Class Shares (NBSTX) - Neuberger Berman Socially Responsive Fund (Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R355.htm</HtmlFileName>
      <LongName>020353 - Document - Risk/Return Summary {Unlabeled} - Trust Class Shares (NILTX) - Neuberger Berman International Select Fund (Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledTrustClassSharesNILTXNeubergerBermanInternationalSelectFundTrustClass</Role>
      <ShortName>Risk/Return Summary- Trust Class Shares (NILTX) - Neuberger Berman International Select Fund (Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R361.htm</HtmlFileName>
      <LongName>020359 - Disclosure - Risk/Return Detail Data {Elements} - Trust Class Shares (NILTX) - Neuberger Berman International Select Fund (Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsTrustClassSharesNILTXNeubergerBermanInternationalSelectFundTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Trust Class Shares (NILTX) - Neuberger Berman International Select Fund (Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>99</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R362.htm</HtmlFileName>
      <LongName>020360 - Document - Risk/Return Summary {Unlabeled} - Trust Class Shares (NBRFX) - Neuberger Berman Real Estate Fund (Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledTrustClassSharesNBRFXNeubergerBermanRealEstateFundTrustClass</Role>
      <ShortName>Risk/Return Summary- Trust Class Shares (NBRFX) - Neuberger Berman Real Estate Fund (Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>100</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R368.htm</HtmlFileName>
      <LongName>020366 - Disclosure - Risk/Return Detail Data {Elements} - Trust Class Shares (NBRFX) - Neuberger Berman Real Estate Fund (Trust Class)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsTrustClassSharesNBRFXNeubergerBermanRealEstateFundTrustClass</Role>
      <ShortName>Risk/Return Detail Data- Trust Class Shares (NBRFX) - Neuberger Berman Real Estate Fund (Trust Class)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>101</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R369.htm</HtmlFileName>
      <LongName>020367 - Document - Risk/Return Summary {Unlabeled} - Class R6 Shares (NRDGX) - Neuberger Berman Dividend Growth Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR6SharesNRDGXNeubergerBermanDividendGrowthFundClassR6</Role>
      <ShortName>Risk/Return Summary- Class R6 Shares (NRDGX) - Neuberger Berman Dividend Growth Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>102</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R373.htm</HtmlFileName>
      <LongName>020371 - Disclosure - Risk/Return Detail Data {Elements} - Class R6 Shares (NRDGX) - Neuberger Berman Dividend Growth Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR6SharesNRDGXNeubergerBermanDividendGrowthFundClassR6</Role>
      <ShortName>Risk/Return Detail Data- Class R6 Shares (NRDGX) - Neuberger Berman Dividend Growth Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R374.htm</HtmlFileName>
      <LongName>020372 - Document - Risk/Return Summary {Unlabeled} - Class R6 Shares (NREMX) - Neuberger Berman Emerging Markets Equity Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR6SharesNREMXNeubergerBermanEmergingMarketsEquityFundClassR6</Role>
      <ShortName>Risk/Return Summary- Class R6 Shares (NREMX) - Neuberger Berman Emerging Markets Equity Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>104</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R380.htm</HtmlFileName>
      <LongName>020378 - Disclosure - Risk/Return Detail Data {Elements} - Class R6 Shares (NREMX) - Neuberger Berman Emerging Markets Equity Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR6SharesNREMXNeubergerBermanEmergingMarketsEquityFundClassR6</Role>
      <ShortName>Risk/Return Detail Data- Class R6 Shares (NREMX) - Neuberger Berman Emerging Markets Equity Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>105</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R381.htm</HtmlFileName>
      <LongName>020379 - Document - Risk/Return Summary {Unlabeled} - Class R6 Shares (NRGSX) - Neuberger Berman Genesis Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR6SharesNRGSXNeubergerBermanGenesisFundClassR6</Role>
      <ShortName>Risk/Return Summary- Class R6 Shares (NRGSX) - Neuberger Berman Genesis Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>106</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R387.htm</HtmlFileName>
      <LongName>020385 - Disclosure - Risk/Return Detail Data {Elements} - Class R6 Shares (NRGSX) - Neuberger Berman Genesis Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR6SharesNRGSXNeubergerBermanGenesisFundClassR6</Role>
      <ShortName>Risk/Return Detail Data- Class R6 Shares (NRGSX) - Neuberger Berman Genesis Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>107</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R388.htm</HtmlFileName>
      <LongName>020386 - Document - Risk/Return Summary {Unlabeled} - Class R6 Shares (NRIQX) - Neuberger Berman International Equity Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR6SharesNRIQXNeubergerBermanInternationalEquityFundClassR6</Role>
      <ShortName>Risk/Return Summary- Class R6 Shares (NRIQX) - Neuberger Berman International Equity Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>108</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R394.htm</HtmlFileName>
      <LongName>020392 - Disclosure - Risk/Return Detail Data {Elements} - Class R6 Shares (NRIQX) - Neuberger Berman International Equity Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR6SharesNRIQXNeubergerBermanInternationalEquityFundClassR6</Role>
      <ShortName>Risk/Return Detail Data- Class R6 Shares (NRIQX) - Neuberger Berman International Equity Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>109</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R395.htm</HtmlFileName>
      <LongName>020393 - Document - Risk/Return Summary {Unlabeled} - Class R6 Shares (NRMGX) - Neuberger Berman Mid Cap Growth Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR6SharesNRMGXNeubergerBermanMidCapGrowthFundClassR6</Role>
      <ShortName>Risk/Return Summary- Class R6 Shares (NRMGX) - Neuberger Berman Mid Cap Growth Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>110</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R401.htm</HtmlFileName>
      <LongName>020399 - Disclosure - Risk/Return Detail Data {Elements} - Class R6 Shares (NRMGX) - Neuberger Berman Mid Cap Growth Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR6SharesNRMGXNeubergerBermanMidCapGrowthFundClassR6</Role>
      <ShortName>Risk/Return Detail Data- Class R6 Shares (NRMGX) - Neuberger Berman Mid Cap Growth Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>111</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R402.htm</HtmlFileName>
      <LongName>020400 - Document - Risk/Return Summary {Unlabeled} - Class R6 Shares (NRREX) - Neuberger Berman Real Estate Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR6SharesNRREXNeubergerBermanRealEstateFundClassR6</Role>
      <ShortName>Risk/Return Summary- Class R6 Shares (NRREX) - Neuberger Berman Real Estate Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>112</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R408.htm</HtmlFileName>
      <LongName>020406 - Disclosure - Risk/Return Detail Data {Elements} - Class R6 Shares (NRREX) - Neuberger Berman Real Estate Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR6SharesNRREXNeubergerBermanRealEstateFundClassR6</Role>
      <ShortName>Risk/Return Detail Data- Class R6 Shares (NRREX) - Neuberger Berman Real Estate Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>113</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R409.htm</HtmlFileName>
      <LongName>020407 - Document - Risk/Return Summary {Unlabeled} - Class R6 Shares (NRSRX) - Neuberger Berman Socially Responsive Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR6SharesNRSRXNeubergerBermanSociallyResponsiveFundClassR6</Role>
      <ShortName>Risk/Return Summary- Class R6 Shares (NRSRX) - Neuberger Berman Socially Responsive Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>114</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R415.htm</HtmlFileName>
      <LongName>020413 - Disclosure - Risk/Return Detail Data {Elements} - Class R6 Shares (NRSRX) - Neuberger Berman Socially Responsive Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR6SharesNRSRXNeubergerBermanSociallyResponsiveFundClassR6</Role>
      <ShortName>Risk/Return Detail Data- Class R6 Shares (NRSRX) - Neuberger Berman Socially Responsive Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>115</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R416.htm</HtmlFileName>
      <LongName>020414 - Document - Risk/Return Summary {Unlabeled} - Class R6 Shares (NRINX) - Neuberger Berman Intrinsic Value Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR6SharesNRINXNeubergerBermanIntrinsicValueFundClassR6</Role>
      <ShortName>Risk/Return Summary- Class R6 Shares (NRINX) - Neuberger Berman Intrinsic Value Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>116</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R422.htm</HtmlFileName>
      <LongName>020420 - Disclosure - Risk/Return Detail Data {Elements} - Class R6 Shares (NRINX) - Neuberger Berman Intrinsic Value Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR6SharesNRINXNeubergerBermanIntrinsicValueFundClassR6</Role>
      <ShortName>Risk/Return Detail Data- Class R6 Shares (NRINX) - Neuberger Berman Intrinsic Value Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>117</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R423.htm</HtmlFileName>
      <LongName>020421 - Document - Risk/Return Summary {Unlabeled} - Class R6 Shares (NRLCX) - Neuberger Berman Large Cap Value Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR6SharesNRLCXNeubergerBermanLargeCapValueFundClassR6</Role>
      <ShortName>Risk/Return Summary- Class R6 Shares (NRLCX) - Neuberger Berman Large Cap Value Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>118</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R429.htm</HtmlFileName>
      <LongName>020427 - Disclosure - Risk/Return Detail Data {Elements} - Class R6 Shares (NRLCX) - Neuberger Berman Large Cap Value Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR6SharesNRLCXNeubergerBermanLargeCapValueFundClassR6</Role>
      <ShortName>Risk/Return Detail Data- Class R6 Shares (NRLCX) - Neuberger Berman Large Cap Value Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>119</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R430.htm</HtmlFileName>
      <LongName>020428 - Document - Risk/Return Summary {Unlabeled} - Class R6 Shares (NRILX) - Neuberger Berman International Select Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassR6SharesNRILXNeubergerBermanInternationalSelectFundClassR6</Role>
      <ShortName>Risk/Return Summary- Class R6 Shares (NRILX) - Neuberger Berman International Select Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>120</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R436.htm</HtmlFileName>
      <LongName>020434 - Disclosure - Risk/Return Detail Data {Elements} - Class R6 Shares (NRILX) - Neuberger Berman International Select Fund (Class R6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassR6SharesNRILXNeubergerBermanInternationalSelectFundClassR6</Role>
      <ShortName>Risk/Return Detail Data- Class R6 Shares (NRILX) - Neuberger Berman International Select Fund (Class R6)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>121</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>true</HasEmbeddedReports>
      <HtmlFileName>R437.htm</HtmlFileName>
      <LongName>020435 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (???), Class C Shares (???) - Neuberger Berman Genesis Fund (Class A, Class C)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DocumentRiskReturnSummaryUnlabeledClassASharesClassCSharesNeubergerBermanGenesisFundClassAClassC</Role>
      <ShortName>Risk/Return Summary- Class A Shares (???), Class C Shares (???) - Neuberger Berman Genesis Fund (Class A, Class C)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>122</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R444.htm</HtmlFileName>
      <LongName>020442 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (???), Class C Shares (???) - Neuberger Berman Genesis Fund (Class A, Class C)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://nb.com/20161208/role/DisclosureRiskReturnDetailDataElementsClassASharesClassCSharesNeubergerBermanGenesisFundClassAClassC</Role>
      <ShortName>Risk/Return Detail Data- Class A Shares (???), Class C Shares (???) - Neuberger Berman Genesis Fund (Class A, Class C)</ShortName>
      <MenuCategory></MenuCategory>
      <Position>123</Position>
    </Report>
    <Report instance="nbef-20161208.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R445.htm</HtmlFileName>
      <LongName>040000 - Disclosure - Risk/Return Detail Data {Elements}</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/rr/role/RiskReturnDetailData</Role>
      <ShortName>Risk/Return Detail Data</ShortName>
      <MenuCategory></MenuCategory>
      <Position>124</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>nbef-20161208.xml</File>
    <File>nbef-20161208.xsd</File>
    <File>nbef-20161208_def.xml</File>
    <File>nbef-20161208_lab.xml</File>
    <File>nbef-20161208_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>BarChart1.png</File>
    <File>BarChart2.png</File>
    <File>BarChart3.png</File>
    <File>BarChart4.png</File>
    <File>BarChart5.png</File>
    <File>BarChart6.png</File>
    <File>BarChart7.png</File>
    <File>BarChart8.png</File>
    <File>BarChart9.png</File>
    <File>BarChart10.png</File>
    <File>BarChart11.png</File>
    <File>BarChart12.png</File>
    <File>BarChart13.png</File>
    <File>BarChart14.png</File>
    <File>BarChart15.png</File>
    <File>BarChart16.png</File>
    <File>BarChart17.png</File>
    <File>BarChart18.png</File>
    <File>BarChart19.png</File>
    <File>BarChart20.png</File>
    <File>BarChart21.png</File>
    <File>BarChart22.png</File>
    <File>BarChart23.png</File>
    <File>BarChart24.png</File>
    <File>BarChart25.png</File>
    <File>BarChart26.png</File>
    <File>BarChart27.png</File>
    <File>BarChart28.png</File>
    <File>BarChart29.png</File>
    <File>BarChart30.png</File>
    <File>BarChart31.png</File>
    <File>BarChart32.png</File>
    <File>BarChart33.png</File>
    <File>BarChart34.png</File>
    <File>BarChart35.png</File>
    <File>BarChart36.png</File>
    <File>BarChart37.png</File>
    <File>BarChart38.png</File>
    <File>BarChart39.png</File>
    <File>BarChart40.png</File>
    <File>BarChart41.png</File>
    <File>BarChart42.png</File>
    <File>BarChart43.png</File>
    <File>BarChart44.png</File>
    <File>BarChart45.png</File>
    <File>BarChart46.png</File>
    <File>BarChart47.png</File>
    <File>BarChart48.png</File>
    <File>BarChart49.png</File>
    <File>BarChart50.png</File>
    <File>BarChart51.png</File>
    <File>BarChart52.png</File>
    <File>BarChart53.png</File>
    <File>BarChart54.png</File>
    <File>BarChart55.png</File>
    <File>BarChart56.png</File>
    <File>BarChart57.png</File>
    <File>BarChart58.png</File>
    <File>BarChart59.png</File>
  </SupplementalFiles>
  <BaseTaxonomies/>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
