{ "instance": { "nbef-20211229.htm": { "axisCustom": 0, "axisStandard": 4, "contextCount": 224, "dts": { "calculationLink": { "local": [ "nbef-20211229_cal.xml" ] }, "definitionLink": { "local": [ "nbef-20211229_def.xml" ] }, "inline": { "local": [ "nbef-20211229.htm" ] }, "labelLink": { "local": [ "nbef-20211229_lab.xml" ] }, "presentationLink": { "local": [ "nbef-20211229_pre.xml" ] }, "schema": { "local": [ "nbef-20211229.xsd" ], "remote": [ "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd", "http://www.xbrl.org/2003/xl-2003-12-31.xsd", "http://www.xbrl.org/2003/xlink-2003-12-31.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "https://xbrl.sec.gov/rr/2021/rr-2021.xsd", "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd", "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "https://xbrl.sec.gov/dei/2021/dei-2021.xsd" ] } }, "elementCount": 361, "entityCount": 1, "hidden": { "http://xbrl.sec.gov/dei/2021": 8, "http://xbrl.sec.gov/rr/2021": 620, "total": 628 }, "keyCustom": 0, "keyStandard": 218, "memberCustom": 146, "memberStandard": 2, "nsprefix": "nbef", "nsuri": "http://www.nb.com/20211229", "report": { "R1": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c0", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ProspectusDate", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "000001 - Document - Document and Entity Information", "role": "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "shortName": "Document and Entity Information", "subGroupType": "", "uniqueAnchor": null }, "R10": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c8", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020008 - 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)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": null }, "R104": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c85", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020102 - 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)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c85", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R105": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c92", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020103 - 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)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": null }, "R112": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c92", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020110 - 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)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c92", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R113": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c100", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020111 - 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)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": null }, "R120": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c100", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020118 - 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)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c100", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R121": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c108", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020119 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX) - Neuberger Berman Multi-Cap Opportunities Fund (Class A, Class C, Institutional Class)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "shortName": "Risk/Return Summary- Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX) - Neuberger Berman Multi-Cap Opportunities Fund (Class A, Class C, Institutional Class)", "subGroupType": "", "uniqueAnchor": null }, "R128": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c108", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020126 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX) - Neuberger Berman Multi-Cap Opportunities Fund (Class A, Class C, Institutional Class)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "shortName": "Risk/Return Detail Data- Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX) - Neuberger Berman Multi-Cap Opportunities Fund (Class A, Class C, Institutional Class)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c108", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R129": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c115", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020127 - 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)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": null }, "R136": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c115", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020134 - 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)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c115", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R137": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c122", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020135 - 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)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": null }, "R144": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c122", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020142 - 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)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c122", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R145": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c130", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020143 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX) - Neuberger Berman Sustainable Equity Fund (Class A, Class C, Institutional Class)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "shortName": "Risk/Return Summary- Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX) - Neuberger Berman Sustainable Equity Fund (Class A, Class C, Institutional Class)", "subGroupType": "", "uniqueAnchor": null }, "R152": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c130", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020150 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX) - Neuberger Berman Sustainable Equity Fund (Class A, Class C, Institutional Class)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "shortName": "Risk/Return Detail Data- Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX) - Neuberger Berman Sustainable Equity Fund (Class A, Class C, Institutional Class)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c130", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R153": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c137", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020151 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NEQAX), Class C Shares (NEQCX), Institutional Class Shares (NEQIX) - Neuberger Berman U.S. Equity Impact Fund", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "shortName": "Risk/Return Summary- Class A Shares (NEQAX), Class C Shares (NEQCX), Institutional Class Shares (NEQIX) - Neuberger Berman U.S. Equity Impact Fund", "subGroupType": "", "uniqueAnchor": null }, "R158": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c137", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020156 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NEQAX), Class C Shares (NEQCX), Institutional Class Shares (NEQIX) - Neuberger Berman U.S. Equity Impact Fund", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "shortName": "Risk/Return Detail Data- Class A Shares (NEQAX), Class C Shares (NEQCX), Institutional Class Shares (NEQIX) - Neuberger Berman U.S. Equity Impact Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c137", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R159": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c141", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020157 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NEMRX) - Neuberger Berman Emerging Markets Equity Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "shortName": "Risk/Return Summary- Class R3 Shares (NEMRX) - Neuberger Berman Emerging Markets Equity Fund (Class R3)", "subGroupType": "", "uniqueAnchor": null }, "R165": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c141", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020163 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NEMRX) - Neuberger Berman Emerging Markets Equity Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "shortName": "Risk/Return Detail Data- Class R3 Shares (NEMRX) - Neuberger Berman Emerging Markets Equity Fund (Class R3)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c141", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R166": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c146", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020164 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NBHRX) - Neuberger Berman Equity Income Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "shortName": "Risk/Return Summary- Class R3 Shares (NBHRX) - Neuberger Berman Equity Income Fund (Class R3)", "subGroupType": "", "uniqueAnchor": null }, "R17": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c8", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020015 - 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)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c8", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R172": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c146", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020170 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NBHRX) - Neuberger Berman Equity Income Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "shortName": "Risk/Return Detail Data- Class R3 Shares (NBHRX) - Neuberger Berman Equity Income Fund (Class R3)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c146", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R173": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c151", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020171 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NGDRX) - Neuberger Berman Guardian Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "shortName": "Risk/Return Summary- Class R3 Shares (NGDRX) - Neuberger Berman Guardian Fund (Class R3)", "subGroupType": "", "uniqueAnchor": null }, "R179": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c151", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020177 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NGDRX) - Neuberger Berman Guardian Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "shortName": "Risk/Return Detail Data- Class R3 Shares (NGDRX) - Neuberger Berman Guardian Fund (Class R3)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c151", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c15", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020016 - 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)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": null }, "R180": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c156", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020178 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NBNRX) - Neuberger Berman International Select Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "shortName": "Risk/Return Summary- Class R3 Shares (NBNRX) - Neuberger Berman International Select Fund (Class R3)", "subGroupType": "", "uniqueAnchor": null }, "R186": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c156", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020184 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NBNRX) - Neuberger Berman International Select Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "shortName": "Risk/Return Detail Data- Class R3 Shares (NBNRX) - Neuberger Berman International Select Fund (Class R3)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c156", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R187": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c161", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020185 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NPNRX) - Neuberger Berman Large Cap Value Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "shortName": "Risk/Return Summary- Class R3 Shares (NPNRX) - Neuberger Berman Large Cap Value Fund (Class R3)", "subGroupType": "", "uniqueAnchor": null }, "R193": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c161", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020191 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NPNRX) - Neuberger Berman Large Cap Value Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "shortName": "Risk/Return Detail Data- Class R3 Shares (NPNRX) - Neuberger Berman Large Cap Value Fund (Class R3)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c161", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R194": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c166", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020192 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NMGRX) - Neuberger Berman Mid Cap Growth Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "shortName": "Risk/Return Summary- Class R3 Shares (NMGRX) - Neuberger Berman Mid Cap Growth Fund (Class R3)", "subGroupType": "", "uniqueAnchor": null }, "R2": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c1", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020000 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX) - Neuberger Berman Dividend Growth Fund", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "shortName": "Risk/Return Summary- Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX) - Neuberger Berman Dividend Growth Fund", "subGroupType": "", "uniqueAnchor": null }, "R200": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c166", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020198 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NMGRX) - Neuberger Berman Mid Cap Growth Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "shortName": "Risk/Return Detail Data- Class R3 Shares (NMGRX) - Neuberger Berman Mid Cap Growth Fund (Class R3)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c166", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R201": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c172", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020199 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NBRRX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "shortName": "Risk/Return Summary- Class R3 Shares (NBRRX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class R3)", "subGroupType": "", "uniqueAnchor": null }, "R207": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c172", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020205 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NBRRX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "shortName": "Risk/Return Detail Data- Class R3 Shares (NBRRX) - Neuberger Berman Mid Cap Intrinsic Value Fund (Class R3)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c172", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R208": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c178", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020206 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NRERX) - Neuberger Berman Real Estate Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "shortName": "Risk/Return Summary- Class R3 Shares (NRERX) - Neuberger Berman Real Estate Fund (Class R3)", "subGroupType": "", "uniqueAnchor": null }, "R214": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c178", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020212 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NRERX) - Neuberger Berman Real Estate Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "shortName": "Risk/Return Detail Data- Class R3 Shares (NRERX) - Neuberger Berman Real Estate Fund (Class R3)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c178", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R215": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c183", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020213 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NSNRX) - Neuberger Berman Small Cap Growth Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "shortName": "Risk/Return Summary- Class R3 Shares (NSNRX) - Neuberger Berman Small Cap Growth Fund (Class R3)", "subGroupType": "", "uniqueAnchor": null }, "R221": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c183", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020219 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NSNRX) - Neuberger Berman Small Cap Growth Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "shortName": "Risk/Return Detail Data- Class R3 Shares (NSNRX) - Neuberger Berman Small Cap Growth Fund (Class R3)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c183", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R222": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c189", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020220 - Document - Risk/Return Summary {Unlabeled} - Class R3 Shares (NRARX) - Neuberger Berman Sustainable Equity Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "shortName": "Risk/Return Summary- Class R3 Shares (NRARX) - Neuberger Berman Sustainable Equity Fund (Class R3)", "subGroupType": "", "uniqueAnchor": null }, "R228": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c189", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020226 - Disclosure - Risk/Return Detail Data {Elements} - Class R3 Shares (NRARX) - Neuberger Berman Sustainable Equity Fund (Class R3)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "shortName": "Risk/Return Detail Data- Class R3 Shares (NRARX) - Neuberger Berman Sustainable Equity Fund (Class R3)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c189", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R229": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c194", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020227 - Document - Risk/Return Summary {Unlabeled} - Class E Shares (NBHEX) - Neuberger Berman Equity Income Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "shortName": "Risk/Return Summary- Class E Shares (NBHEX) - Neuberger Berman Equity Income Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": null }, "R235": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c194", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020233 - Disclosure - Risk/Return Detail Data {Elements} - Class E Shares (NBHEX) - Neuberger Berman Equity Income Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "shortName": "Risk/Return Detail Data- Class E Shares (NBHEX) - Neuberger Berman Equity Income Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c194", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R236": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c199", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020234 - Document - Risk/Return Summary {Unlabeled} - Class E Shares (NRGEX) - Neuberger Berman Genesis Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "shortName": "Risk/Return Summary- Class E Shares (NRGEX) - Neuberger Berman Genesis Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": null }, "R242": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c199", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020240 - Disclosure - Risk/Return Detail Data {Elements} - Class E Shares (NRGEX) - Neuberger Berman Genesis Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "shortName": "Risk/Return Detail Data- Class E Shares (NRGEX) - Neuberger Berman Genesis Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c199", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R243": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c204", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020241 - Document - Risk/Return Summary {Unlabeled} - Class E Shares (NIQEX) - Neuberger Berman International Equity Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "shortName": "Risk/Return Summary- Class E Shares (NIQEX) - Neuberger Berman International Equity Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": null }, "R249": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c204", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020247 - Disclosure - Risk/Return Detail Data {Elements} - Class E Shares (NIQEX) - Neuberger Berman International Equity Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "shortName": "Risk/Return Detail Data- Class E Shares (NIQEX) - Neuberger Berman International Equity Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c204", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c15", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020023 - 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)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c15", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R250": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c209", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020248 - Document - Risk/Return Summary {Unlabeled} - Class E Shares (NPNEX) - Neuberger Berman Large Cap Value Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "shortName": "Risk/Return Summary- Class E Shares (NPNEX) - Neuberger Berman Large Cap Value Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": null }, "R256": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c209", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020254 - Disclosure - Risk/Return Detail Data {Elements} - Class E Shares (NPNEX) - Neuberger Berman Large Cap Value Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "shortName": "Risk/Return Detail Data- Class E Shares (NPNEX) - Neuberger Berman Large Cap Value Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c209", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R257": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c214", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020255 - Document - Risk/Return Summary {Unlabeled} - Class E Shares (NMUEX) - Neuberger Berman Multi-Cap Opportunities Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "shortName": "Risk/Return Summary- Class E Shares (NMUEX) - Neuberger Berman Multi-Cap Opportunities Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": null }, "R26": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c22", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020024 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX) - Neuberger Berman Focus Fund", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "shortName": "Risk/Return Summary- Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX) - Neuberger Berman Focus Fund", "subGroupType": "", "uniqueAnchor": null }, "R263": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c214", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020261 - Disclosure - Risk/Return Detail Data {Elements} - Class E Shares (NMUEX) - Neuberger Berman Multi-Cap Opportunities Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "shortName": "Risk/Return Detail Data- Class E Shares (NMUEX) - Neuberger Berman Multi-Cap Opportunities Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c214", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R264": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c219", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020262 - Document - Risk/Return Summary {Unlabeled} - Class E Shares (NREEX) - Neuberger Berman Real Estate Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "shortName": "Risk/Return Summary- Class E Shares (NREEX) - Neuberger Berman Real Estate Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": null }, "R270": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c219", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020268 - Disclosure - Risk/Return Detail Data {Elements} - Class E Shares (NREEX) - Neuberger Berman Real Estate Fund (Class E Shares)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "shortName": "Risk/Return Detail Data- Class E Shares (NREEX) - Neuberger Berman Real Estate Fund (Class E Shares)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c219", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R271": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c0", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ProspectusDate", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "040000 - Disclosure - Risk/Return Detail Data {Elements}", "role": "http://xbrl.sec.gov/rr/role/RiskReturnDetailData", "shortName": "Risk/Return Detail Data", "subGroupType": "", "uniqueAnchor": null }, "R33": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c22", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020031 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX) - Neuberger Berman Focus Fund", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "shortName": "Risk/Return Detail Data- Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX) - Neuberger Berman Focus Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c22", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c29", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020032 - Document - Risk/Return Summary {Unlabeled} - Institutional Class Shares (NBGIX) - Neuberger Berman Genesis Fund (Institutional Class)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "shortName": "Risk/Return Summary- Institutional Class Shares (NBGIX) - Neuberger Berman Genesis Fund (Institutional Class)", "subGroupType": "", "uniqueAnchor": null }, "R40": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c29", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020038 - Disclosure - Risk/Return Detail Data {Elements} - Institutional Class Shares (NBGIX) - Neuberger Berman Genesis Fund (Institutional Class)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "shortName": "Risk/Return Detail Data- Institutional Class Shares (NBGIX) - Neuberger Berman Genesis Fund (Institutional Class)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c29", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c34", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020039 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX) - Neuberger Berman Global Real Estate Fund", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "shortName": "Risk/Return Summary- Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX) - Neuberger Berman Global Real Estate Fund", "subGroupType": "", "uniqueAnchor": null }, "R48": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c34", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020046 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX) - Neuberger Berman Global Real Estate Fund", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "shortName": "Risk/Return Detail Data- Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX) - Neuberger Berman Global Real Estate Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c34", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c41", "decimals": null, "first": true, "lang": "en-US", "name": "rr:RiskReturnHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020047 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX) - Neuberger Berman Greater China Equity Fund", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "shortName": "Risk/Return Summary- Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX) - Neuberger Berman Greater China Equity Fund", "subGroupType": "", "uniqueAnchor": null }, "R56": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c41", "decimals": null, "first": true, "lang": "en-US", "name": "rr:RiskReturnHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020054 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX) - Neuberger Berman Greater China Equity Fund", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "shortName": "Risk/Return Detail Data- Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX) - Neuberger Berman Greater China Equity Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c41", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R57": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c49", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020055 - 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)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": null }, "R64": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c49", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020062 - 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)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "rr:PortfolioTurnoverTextBlock", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c49", "decimals": "INF", "lang": null, "name": "rr:PortfolioTurnoverRate", "reportCount": 1, "unique": true, "unitRef": "pure", "xsiNil": "false" } }, "R65": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c56", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020063 - 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)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": null }, "R72": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c56", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020070 - 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)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c56", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R73": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c63", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020071 - 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)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "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)", "subGroupType": "", "uniqueAnchor": null }, "R80": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c63", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020078 - 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)", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "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)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c63", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R81": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c70", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020079 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NIOAX), Class C Shares (NIOCX), Institutional Class Shares (NIOIX) - Neuberger Berman International Small Cap Fund", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "shortName": "Risk/Return Summary- Class A Shares (NIOAX), Class C Shares (NIOCX), Institutional Class Shares (NIOIX) - Neuberger Berman International Small Cap Fund", "subGroupType": "", "uniqueAnchor": null }, "R88": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c70", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020086 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NIOAX), Class C Shares (NIOCX), Institutional Class Shares (NIOIX) - Neuberger Berman International Small Cap Fund", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "shortName": "Risk/Return Detail Data- Class A Shares (NIOAX), Class C Shares (NIOCX), Institutional Class Shares (NIOIX) - Neuberger Berman International Small Cap Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c70", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R89": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c77", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020087 - Document - Risk/Return Summary {Unlabeled} - Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX) - Neuberger Berman Intrinsic Value Fund", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "shortName": "Risk/Return Summary- Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX) - Neuberger Berman Intrinsic Value Fund", "subGroupType": "", "uniqueAnchor": null }, "R9": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c1", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020007 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX) - Neuberger Berman Dividend Growth Fund", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "shortName": "Risk/Return Detail Data- Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX) - Neuberger Berman Dividend Growth Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c1", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R96": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c77", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "020094 - Disclosure - Risk/Return Detail Data {Elements} - Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX) - Neuberger Berman Intrinsic Value Fund", "role": "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "shortName": "Risk/Return Detail Data- Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX) - Neuberger Berman Intrinsic Value Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "link:footnote", "td", "tr", "table", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c77", "decimals": null, "lang": "en-US", "name": "rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R97": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c85", "decimals": null, "first": true, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "false", "longName": "020095 - 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)", "role": "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "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)", "subGroupType": "", "uniqueAnchor": null }, "S1": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c0", "decimals": null, "lang": "en-US", "name": "rr:ProspectusDate", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "true", "longName": "000000179 - Disclosure - Document and Entity Information", "section": 0, "shortName": "Document and Entity Information", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c0", "decimals": null, "lang": "en-US", "name": "rr:ProspectusDate", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S10": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c56", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000004030 - Disclosure - Class A Shares (NIQAX), Class C Shares (NIQCX), Institutional Class (NBIIX), Neuberger Berman International Equity Fund", "section": 9, "shortName": "Class A Shares (NIQAX), Class C Shares (NIQCX), Institutional Class (NBIIX), Neuberger Berman International Equity Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c56", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S11": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c63", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000004463 - Disclosure - Class A Shares (NBNAX), Class C Shares (NBNCX), Institutional Class Shares (NILIX), Neuberger Berman International Select Fund", "section": 10, "shortName": "Class A Shares (NBNAX), Class C Shares (NBNCX), Institutional Class Shares (NILIX), Neuberger Berman International Select Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c63", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S12": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c70", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000004894 - Disclosure - Class A Shares (NIOAX), Class C Shares (NIOCX), Institutional Class Shares (NIOIX), Neuberger Berman International Small Cap Fund", "section": 11, "shortName": "Class A Shares (NIOAX), Class C Shares (NIOCX), Institutional Class Shares (NIOIX), Neuberger Berman International Small Cap Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c70", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S13": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c77", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000005314 - Disclosure - Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX), Neuberger Berman Intrinsic Value Fund", "section": 12, "shortName": "Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX), Neuberger Berman Intrinsic Value Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c77", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S14": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c85", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000005798 - Disclosure - Class A Shares (NPNAX), Class C Shares (NPNCX), Institutional Class Shares (NBPIX), Neuberger Berman Large Cap Value Fund", "section": 13, "shortName": "Class A Shares (NPNAX), Class C Shares (NPNCX), Institutional Class Shares (NBPIX), Neuberger Berman Large Cap Value Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c85", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S15": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c92", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000006209 - Disclosure - Class A Shares (NMGAX), Class C Shares (NMGCX), Institutional Class Shares (NBMLX), Neuberger Berman Mid Cap Growth Fund", "section": 14, "shortName": "Class A Shares (NMGAX), Class C Shares (NMGCX), Institutional Class Shares (NBMLX), Neuberger Berman Mid Cap Growth Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c92", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S16": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c100", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000006609 - Disclosure - Class A Shares (NBRAX), Class C Shares (NBRCX), Institutional Class Shares (NBRTX), Neuberger Berman Mid Cap Intrinsic Value Fund", "section": 15, "shortName": "Class A Shares (NBRAX), Class C Shares (NBRCX), Institutional Class Shares (NBRTX), Neuberger Berman Mid Cap Intrinsic Value Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c100", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S17": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c108", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000007079 - Disclosure - Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX), Neuberger Berman Multi-Cap Opportunities Fund", "section": 16, "shortName": "Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX), Neuberger Berman Multi-Cap Opportunities Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c108", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S18": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c115", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000007488 - Disclosure - Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX), Neuberger Berman Real Estate Fund", "section": 17, "shortName": "Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX), Neuberger Berman Real Estate Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c115", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S19": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c122", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000007926 - Disclosure - Class A Shares (NSNAX), Class C Shares (NSNCX), Institutional Class Shares (NBSMX), Neuberger Berman Small Cap Growth Fund", "section": 18, "shortName": "Class A Shares (NSNAX), Class C Shares (NSNCX), Institutional Class Shares (NBSMX), Neuberger Berman Small Cap Growth Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c122", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S2": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c1", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000000463 - Disclosure - Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX), Neuberger Berman Dividend Growth Fund", "section": 1, "shortName": "Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX), Neuberger Berman Dividend Growth Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c1", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S20": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c130", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000008377 - Disclosure - Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX), Neuberger Berman Sustainable Equity Fund", "section": 19, "shortName": "Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX), Neuberger Berman Sustainable Equity Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c130", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S21": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c137", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000008785 - Disclosure - Class A Shares (NEQAX), Class C Shares (NEQCX), Institutional Class Shares (NEQIX), Neuberger Berman U.S. Equity Impact Fund", "section": 20, "shortName": "Class A Shares (NEQAX), Class C Shares (NEQCX), Institutional Class Shares (NEQIX), Neuberger Berman U.S. Equity Impact Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c137", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S22": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c141", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000023830 - Disclosure - Class R3 Shares (NEMRX), Neuberger Berman Emerging Markets Equity Fund", "section": 21, "shortName": "Class R3 Shares (NEMRX), Neuberger Berman Emerging Markets Equity Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c141", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S23": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c146", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000024181 - Disclosure - Class R3 Shares (NBHRX), Neuberger Berman Equity Income Fund", "section": 22, "shortName": "Class R3 Shares (NBHRX), Neuberger Berman Equity Income Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c146", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S24": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c151", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000024533 - Disclosure - Class R3 Shares (NGDRX), Neuberger Berman Guardian Fund", "section": 23, "shortName": "Class R3 Shares (NGDRX), Neuberger Berman Guardian Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c151", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S25": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c156", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000024869 - Disclosure - Class R3 Shares (NBNRX), Neuberger Berman International Select Fund", "section": 24, "shortName": "Class R3 Shares (NBNRX), Neuberger Berman International Select Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c156", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S26": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c161", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000025181 - Disclosure - Class R3 Shares (NPNRX), Neuberger Berman Large Cap Value Fund", "section": 25, "shortName": "Class R3 Shares (NPNRX), Neuberger Berman Large Cap Value Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c161", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S27": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c166", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000025490 - Disclosure - Class R3 Shares (NMGRX), Neuberger Berman Mid Cap Growth Fund", "section": 26, "shortName": "Class R3 Shares (NMGRX), Neuberger Berman Mid Cap Growth Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c166", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S28": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c172", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000025763 - Disclosure - Class R3 Shares (NBRRX), Neuberger Berman Mid Cap Intrinsic Value Fund", "section": 27, "shortName": "Class R3 Shares (NBRRX), Neuberger Berman Mid Cap Intrinsic Value Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c172", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S29": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c178", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000026107 - Disclosure - Class R3 Shares (NRERX), Neuberger Berman Real Estate Fund", "section": 28, "shortName": "Class R3 Shares (NRERX), Neuberger Berman Real Estate Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c178", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S3": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c8", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000000916 - Disclosure - Class A Shares (NEMAX), Class C Shares (NEMCX), Institutional Class Shares (NEMIX), Neuberger Berman Emerging Markets Equity Fund", "section": 2, "shortName": "Class A Shares (NEMAX), Class C Shares (NEMCX), Institutional Class Shares (NEMIX), Neuberger Berman Emerging Markets Equity Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c8", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S30": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c183", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000026427 - Disclosure - Class R3 Shares (NSNRX), Neuberger Berman Small Cap Growth Fund", "section": 29, "shortName": "Class R3 Shares (NSNRX), Neuberger Berman Small Cap Growth Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c183", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S31": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c189", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000026746 - Disclosure - Class R3 Shares (NRARX), Neuberger Berman Sustainable Equity Fund", "section": 30, "shortName": "Class R3 Shares (NRARX), Neuberger Berman Sustainable Equity Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c189", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S32": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c194", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000030030 - Disclosure - Class E Shares (NBHEX), Neuberger Berman Equity Income Fund", "section": 31, "shortName": "Class E Shares (NBHEX), Neuberger Berman Equity Income Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c194", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S33": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c199", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000030459 - Disclosure - Class E Shares (NRGEX), Neuberger Berman Genesis Fund", "section": 32, "shortName": "Class E Shares (NRGEX), Neuberger Berman Genesis Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c199", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S34": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c204", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000030761 - Disclosure - Class E Shares (NIQEX), Neuberger Berman International Equity Fund", "section": 33, "shortName": "Class E Shares (NIQEX), Neuberger Berman International Equity Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c204", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S35": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c209", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000031083 - Disclosure - Class E Shares (NPNEX), Neuberger Berman Large Cap Value Fund", "section": 34, "shortName": "Class E Shares (NPNEX), Neuberger Berman Large Cap Value Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c209", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S36": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c214", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000031410 - Disclosure - Class E Shares (NMUEX), Neuberger Berman Multi-Cap Opportunities Fund", "section": 35, "shortName": "Class E Shares (NMUEX), Neuberger Berman Multi-Cap Opportunities Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c214", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S37": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c219", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000031724 - Disclosure - Class E Shares (NREEX), Neuberger Berman Real Estate Fund", "section": 36, "shortName": "Class E Shares (NREEX), Neuberger Berman Real Estate Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c219", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S4": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c15", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000001393 - Disclosure - Class A Shares (NBHAX), Class C Shares (NBHCX), Institutional Class Shares (NBHIX), Neuberger Berman Equity Income Fund", "section": 3, "shortName": "Class A Shares (NBHAX), Class C Shares (NBHCX), Institutional Class Shares (NBHIX), Neuberger Berman Equity Income Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c15", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S5": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c22", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000001883 - Disclosure - Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX), Neuberger Berman Focus Fund", "section": 4, "shortName": "Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX), Neuberger Berman Focus Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c22", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S6": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c29", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000002335 - Disclosure - Institutional Class Shares (NBGIX), Neuberger Berman Genesis Fund", "section": 5, "shortName": "Institutional Class Shares (NBGIX), Neuberger Berman Genesis Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c29", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S7": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c34", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000002616 - Disclosure - Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX), Neuberger Berman Global Real Estate Fund", "section": 6, "shortName": "Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX), Neuberger Berman Global Real Estate Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c34", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S8": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c41", "decimals": null, "lang": "en-US", "name": "rr:RiskReturnHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000003092 - Disclosure - Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX), Neuberger Berman Greater China Equity Fund", "section": 7, "shortName": "Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX), Neuberger Berman Greater China Equity Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c41", "decimals": null, "lang": "en-US", "name": "rr:RiskReturnHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } }, "S9": { "firstAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c49", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "RR_Summaries", "isDefault": "false", "longName": "000003599 - Disclosure - Class A Shares (NGDAX), Class C Shares (NGDCX), Institutional Class Shares (NGDLX), Neuberger Berman Guardian Fund", "section": 8, "shortName": "Class A Shares (NGDAX), Class C Shares (NGDCX), Institutional Class Shares (NGDLX), Neuberger Berman Guardian Fund", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "baseRef": "nbef-20211229.htm", "contextRef": "c49", "decimals": null, "lang": "en-US", "name": "rr:ObjectiveHeading", "reportCount": 1, "unitRef": null, "xsiNil": "false" } } }, "segmentCount": 148, "tag": { "dei_AmendmentFlag": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.", "label": "Amendment Flag" } } }, "localname": "AmendmentFlag", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation" ], "xbrltype": "booleanItemType" }, "dei_DocumentCreationDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The date the document was made available and submitted, in YYYY-MM-DD format. The date of submission, date of acceptance by the recipient, and the document effective date are all potentially different.", "label": "Document Creation Date" } } }, "localname": "DocumentCreationDate", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation" ], "xbrltype": "dateItemType" }, "dei_DocumentDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Type of the document as assigned by the filer, corresponding to SEC document naming convention standards." } } }, "localname": "DocumentDomain", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation" ], "xbrltype": "domainItemType" }, "dei_DocumentEffectiveDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The date when a document, upon receipt and acceptance, becomes officially effective, in YYYY-MM-DD format. Usually it is a system-assigned date time value, but it may be declared by the submitter in some cases.", "label": "Document Effective Date" } } }, "localname": "DocumentEffectiveDate", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation" ], "xbrltype": "dateItemType" }, "dei_DocumentInformationDocumentAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The axis of a table defines the relationship between the domain members or categories in the table and the line items or concepts that complete the table.", "label": "Document Information, Document [Axis]" } } }, "localname": "DocumentInformationDocumentAxis", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "stringItemType" }, "dei_DocumentPeriodEndDate": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.", "label": "Document Period End Date" } } }, "localname": "DocumentPeriodEndDate", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation" ], "xbrltype": "dateItemType" }, "dei_DocumentType": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.", "label": "Document Type" } } }, "localname": "DocumentType", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation" ], "xbrltype": "submissionTypeItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r77" ], "lang": { "en-us": { "role": { "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.", "label": "Entity Central Index Key" } } }, "localname": "EntityCentralIndexKey", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation" ], "xbrltype": "centralIndexKeyItemType" }, "dei_EntityDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains." } } }, "localname": "EntityDomain", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "domainItemType" }, "dei_EntityInvCompanyType": { "auth_ref": [ "r78" ], "lang": { "en-us": { "role": { "documentation": "One of: N-1A (Mutual Fund), N-1 (Open-End Separate Account with No Variable Annuities), N-2 (Closed-End Investment Company), N-3 (Separate Account Registered as Open-End Management Investment Company), N-4 (Variable Annuity UIT Separate Account), N-5 (Small Business Investment Company), N-6 (Variable Life UIT Separate Account), S-1 or S-3 (Face Amount Certificate Company), S-6 (UIT, Non-Insurance Product).", "label": "Entity Inv Company Type" } } }, "localname": "EntityInvCompanyType", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation" ], "xbrltype": "invCompanyType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r77" ], "lang": { "en-us": { "role": { "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.", "label": "Entity Registrant Name" } } }, "localname": "EntityRegistrantName", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation" ], "xbrltype": "normalizedStringItemType" }, "dei_LegalEntityAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The set of legal entities associated with a report.", "label": "Legal Entity [Axis]" } } }, "localname": "LegalEntityAxis", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "stringItemType" }, "dei_TradingSymbol": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Trading symbol of an instrument as listed on an exchange.", "label": "Trading Symbol" } } }, "localname": "TradingSymbol", "nsuri": "http://xbrl.sec.gov/dei/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation" ], "xbrltype": "tradingSymbolItemType" }, "nbef_C000021339Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Genesis Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000021339Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033" ], "xbrltype": "domainItemType" }, "nbef_C000021340Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman International Equity Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000021340Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064" ], "xbrltype": "domainItemType" }, "nbef_C000021341Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Real Estate Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000021341Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128" ], "xbrltype": "domainItemType" }, "nbef_C000027734Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Small Cap Growth Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000027734Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136" ], "xbrltype": "domainItemType" }, "nbef_C000027735Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Large Cap Value Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000027735Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096" ], "xbrltype": "domainItemType" }, "nbef_C000027737Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Mid Cap Intrinsic Value Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000027737Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112" ], "xbrltype": "domainItemType" }, "nbef_C000027738Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Sustainable Equity Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000027738Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144" ], "xbrltype": "domainItemType" }, "nbef_C000027739Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Focus Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000027739Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025" ], "xbrltype": "domainItemType" }, "nbef_C000027740Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Guardian Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000027740Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056" ], "xbrltype": "domainItemType" }, "nbef_C000027741Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Mid Cap Growth Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000027741Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104" ], "xbrltype": "domainItemType" }, "nbef_C000035184Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional (Neuberger Berman International Select Fund)", "terseLabel": "Institutional" } } }, "localname": "C000035184Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072" ], "xbrltype": "domainItemType" }, "nbef_C000057306Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman International Select Fund)", "terseLabel": "Class A" } } }, "localname": "C000057306Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072" ], "xbrltype": "domainItemType" }, "nbef_C000057307Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman International Select Fund)", "terseLabel": "Class C" } } }, "localname": "C000057307Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072" ], "xbrltype": "domainItemType" }, "nbef_C000063559Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Equity Income Fund)", "terseLabel": "Class A" } } }, "localname": "C000063559Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017" ], "xbrltype": "domainItemType" }, "nbef_C000063560Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Equity Income Fund)", "terseLabel": "Class C" } } }, "localname": "C000063560Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017" ], "xbrltype": "domainItemType" }, "nbef_C000063561Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Equity Income Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000063561Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017" ], "xbrltype": "domainItemType" }, "nbef_C000069470Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Emerging Markets Equity Fund)", "terseLabel": "Class A" } } }, "localname": "C000069470Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009" ], "xbrltype": "domainItemType" }, "nbef_C000069471Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Emerging Markets Equity Fund)", "terseLabel": "Class C" } } }, "localname": "C000069471Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009" ], "xbrltype": "domainItemType" }, "nbef_C000069472Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Emerging Markets Equity Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000069472Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009" ], "xbrltype": "domainItemType" }, "nbef_C000077149Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Small Cap Growth Fund)", "terseLabel": "Class A" } } }, "localname": "C000077149Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136" ], "xbrltype": "domainItemType" }, "nbef_C000077150Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Small Cap Growth Fund)", "terseLabel": "Class C" } } }, "localname": "C000077150Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136" ], "xbrltype": "domainItemType" }, "nbef_C000077152Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 (Neuberger Berman Small Cap Growth Fund)", "terseLabel": "Class R3" } } }, "localname": "C000077152Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214" ], "xbrltype": "domainItemType" }, "nbef_C000077153Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Sustainable Equity Fund)", "terseLabel": "Class C" } } }, "localname": "C000077153Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144" ], "xbrltype": "domainItemType" }, "nbef_C000077155Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 (Neuberger Berman Sustainable Equity Fund)", "terseLabel": "Class R3" } } }, "localname": "C000077155Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221" ], "xbrltype": "domainItemType" }, "nbef_C000077156Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Sustainable Equity Fund)", "terseLabel": "Class A" } } }, "localname": "C000077156Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144" ], "xbrltype": "domainItemType" }, "nbef_C000077157Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Guardian Fund)", "terseLabel": "Class A" } } }, "localname": "C000077157Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056" ], "xbrltype": "domainItemType" }, "nbef_C000077158Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Guardian Fund)", "terseLabel": "Class C" } } }, "localname": "C000077158Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056" ], "xbrltype": "domainItemType" }, "nbef_C000077160Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 (Neuberger Berman Guardian Fund)", "terseLabel": "Class R3" } } }, "localname": "C000077160Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172" ], "xbrltype": "domainItemType" }, "nbef_C000077161Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Mid Cap Growth Fund)", "terseLabel": "Class A" } } }, "localname": "C000077161Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104" ], "xbrltype": "domainItemType" }, "nbef_C000077162Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Mid Cap Growth Fund)", "terseLabel": "Class C" } } }, "localname": "C000077162Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104" ], "xbrltype": "domainItemType" }, "nbef_C000077164Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 (Neuberger Berman Mid Cap Growth Fund)", "terseLabel": "Class R3" } } }, "localname": "C000077164Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193" ], "xbrltype": "domainItemType" }, "nbef_C000077166Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 (Neuberger Berman International Select Fund)", "terseLabel": "Class R3" } } }, "localname": "C000077166Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179" ], "xbrltype": "domainItemType" }, "nbef_C000082270Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Multi-Cap Opportunities Fund)", "terseLabel": "Class A" } } }, "localname": "C000082270Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120" ], "xbrltype": "domainItemType" }, "nbef_C000082271Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Multi-Cap Opportunities Fund)", "terseLabel": "Class C" } } }, "localname": "C000082271Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120" ], "xbrltype": "domainItemType" }, "nbef_C000082272Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Multi-Cap Opportunities Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000082272Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120" ], "xbrltype": "domainItemType" }, "nbef_C000087772Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Intrinsic Value Fund)", "terseLabel": "Class A" } } }, "localname": "C000087772Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088" ], "xbrltype": "domainItemType" }, "nbef_C000087773Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Intrinsic Value Fund)", "terseLabel": "Class C" } } }, "localname": "C000087773Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088" ], "xbrltype": "domainItemType" }, "nbef_C000087774Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Intrinsic Value Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000087774Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088" ], "xbrltype": "domainItemType" }, "nbef_C000089999Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Large Cap Value Fund)", "terseLabel": "Class C" } } }, "localname": "C000089999Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096" ], "xbrltype": "domainItemType" }, "nbef_C000090000Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 (Neuberger Berman Large Cap Value Fund)", "terseLabel": "Class R3" } } }, "localname": "C000090000Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186" ], "xbrltype": "domainItemType" }, "nbef_C000090001Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Large Cap Value Fund)", "terseLabel": "Class A" } } }, "localname": "C000090001Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096" ], "xbrltype": "domainItemType" }, "nbef_C000090002Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Real Estate Fund)", "terseLabel": "Class A" } } }, "localname": "C000090002Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128" ], "xbrltype": "domainItemType" }, "nbef_C000090003Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Real Estate Fund)", "terseLabel": "Class C" } } }, "localname": "C000090003Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128" ], "xbrltype": "domainItemType" }, "nbef_C000090004Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 (Neuberger Berman Real Estate Fund)", "terseLabel": "Class R3" } } }, "localname": "C000090004Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207" ], "xbrltype": "domainItemType" }, "nbef_C000090009Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Mid Cap Intrinsic Value Fund)", "terseLabel": "Class A" } } }, "localname": "C000090009Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112" ], "xbrltype": "domainItemType" }, "nbef_C000090010Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Mid Cap Intrinsic Value Fund)", "terseLabel": "Class C" } } }, "localname": "C000090010Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112" ], "xbrltype": "domainItemType" }, "nbef_C000090011Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 (Neuberger Berman Mid Cap Intrinsic Value Fund)", "terseLabel": "Class R3" } } }, "localname": "C000090011Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200" ], "xbrltype": "domainItemType" }, "nbef_C000090012Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Focus Fund)", "terseLabel": "Class A" } } }, "localname": "C000090012Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025" ], "xbrltype": "domainItemType" }, "nbef_C000090013Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Focus Fund)", "terseLabel": "Class C" } } }, "localname": "C000090013Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025" ], "xbrltype": "domainItemType" }, "nbef_C000090014Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 (Neuberger Berman Equity Income Fund)", "terseLabel": "Class R3" } } }, "localname": "C000090014Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165" ], "xbrltype": "domainItemType" }, "nbef_C000090015Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 (Neuberger Berman Emerging Markets Equity Fund)", "terseLabel": "Class R3" } } }, "localname": "C000090015Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158" ], "xbrltype": "domainItemType" }, "nbef_C000121822Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman International Equity Fund)", "terseLabel": "Class A" } } }, "localname": "C000121822Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064" ], "xbrltype": "domainItemType" }, "nbef_C000121823Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman International Equity Fund)", "terseLabel": "Class C" } } }, "localname": "C000121823Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064" ], "xbrltype": "domainItemType" }, "nbef_C000129332Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Greater China Equity Fund)", "terseLabel": "Class A" } } }, "localname": "C000129332Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048" ], "xbrltype": "domainItemType" }, "nbef_C000129333Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Greater China Equity Fund)", "terseLabel": "Class C" } } }, "localname": "C000129333Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048" ], "xbrltype": "domainItemType" }, "nbef_C000129334Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Greater China Equity Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000129334Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048" ], "xbrltype": "domainItemType" }, "nbef_C000150124Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Global Real Estate Fund)", "terseLabel": "Class A" } } }, "localname": "C000150124Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040" ], "xbrltype": "domainItemType" }, "nbef_C000150125Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Global Real Estate Fund)", "terseLabel": "Class C" } } }, "localname": "C000150125Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040" ], "xbrltype": "domainItemType" }, "nbef_C000150126Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman Global Real Estate Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000150126Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040" ], "xbrltype": "domainItemType" }, "nbef_C000163610Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman Dividend Growth Fund)", "terseLabel": "Class A" } } }, "localname": "C000163610Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001" ], "xbrltype": "domainItemType" }, "nbef_C000163611Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman Dividend Growth Fund)", "terseLabel": "Class C" } } }, "localname": "C000163611Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001" ], "xbrltype": "domainItemType" }, "nbef_C000163612Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class Institutional (Neuberger Berman Dividend Growth Fund)", "terseLabel": "Class Institutional" } } }, "localname": "C000163612Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001" ], "xbrltype": "domainItemType" }, "nbef_C000175512Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman International Small Cap Fund)", "terseLabel": "Class A" } } }, "localname": "C000175512Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080" ], "xbrltype": "domainItemType" }, "nbef_C000175513Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman International Small Cap Fund)", "terseLabel": "Class C" } } }, "localname": "C000175513Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080" ], "xbrltype": "domainItemType" }, "nbef_C000175514Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman International Small Cap Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000175514Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080" ], "xbrltype": "domainItemType" }, "nbef_C000225949Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class (Neuberger Berman U.S. Equity Impact Fund)", "terseLabel": "Institutional Class" } } }, "localname": "C000225949Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152" ], "xbrltype": "domainItemType" }, "nbef_C000225950Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A (Neuberger Berman U.S. Equity Impact Fund)", "terseLabel": "Class A" } } }, "localname": "C000225950Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152" ], "xbrltype": "domainItemType" }, "nbef_C000225951Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class C (Neuberger Berman U.S. Equity Impact Fund)", "terseLabel": "Class C" } } }, "localname": "C000225951Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152" ], "xbrltype": "domainItemType" }, "nbef_C000228869Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (Neuberger Berman Large Cap Value Fund)", "terseLabel": "Class E Shares" } } }, "localname": "C000228869Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249" ], "xbrltype": "domainItemType" }, "nbef_C000228870Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (Neuberger Berman Genesis Fund)", "terseLabel": "Class E Shares" } } }, "localname": "C000228870Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235" ], "xbrltype": "domainItemType" }, "nbef_C000228871Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (Neuberger Berman International Equity Fund)", "terseLabel": "Class E Shares" } } }, "localname": "C000228871Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242" ], "xbrltype": "domainItemType" }, "nbef_C000228872Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (Neuberger Berman Real Estate Fund)", "terseLabel": "Class E Shares" } } }, "localname": "C000228872Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "domainItemType" }, "nbef_C000228873Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (Neuberger Berman Equity Income Fund)", "terseLabel": "Class E Shares" } } }, "localname": "C000228873Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228" ], "xbrltype": "domainItemType" }, "nbef_C000228874Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (Neuberger Berman Multi-Cap Opportunities Fund)", "terseLabel": "Class E Shares" } } }, "localname": "C000228874Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256" ], "xbrltype": "domainItemType" }, "nbef_RiskReturnSummaryAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Risk/Return Summary [Abstract]" } } }, "localname": "RiskReturnSummaryAbstract", "nsuri": "http://www.nb.com/20211229", "xbrltype": "stringItemType" }, "nbef_S000007839Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Small Cap Growth Fund" } } }, "localname": "S000007839Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214" ], "xbrltype": "domainItemType" }, "nbef_S000007840Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Large Cap Value Fund" } } }, "localname": "S000007840Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249" ], "xbrltype": "domainItemType" }, "nbef_S000007841Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Genesis Fund" } } }, "localname": "S000007841Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235" ], "xbrltype": "domainItemType" }, "nbef_S000007842Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman International Equity Fund" } } }, "localname": "S000007842Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242" ], "xbrltype": "domainItemType" }, "nbef_S000007843Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Real Estate Fund" } } }, "localname": "S000007843Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "domainItemType" }, "nbef_S000007846Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Mid Cap Intrinsic Value Fund" } } }, "localname": "S000007846Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200" ], "xbrltype": "domainItemType" }, "nbef_S000007847Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Sustainable Equity Fund" } } }, "localname": "S000007847Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221" ], "xbrltype": "domainItemType" }, "nbef_S000007848Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Focus Fund" } } }, "localname": "S000007848Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025" ], "xbrltype": "domainItemType" }, "nbef_S000007849Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Guardian Fund" } } }, "localname": "S000007849Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172" ], "xbrltype": "domainItemType" }, "nbef_S000007850Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Mid Cap Growth Fund" } } }, "localname": "S000007850Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193" ], "xbrltype": "domainItemType" }, "nbef_S000012721Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman International Select Fund" } } }, "localname": "S000012721Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179" ], "xbrltype": "domainItemType" }, "nbef_S000013716Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Equity Income Fund" } } }, "localname": "S000013716Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228" ], "xbrltype": "domainItemType" }, "nbef_S000013718Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Multi-Cap Opportunities Fund" } } }, "localname": "S000013718Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256" ], "xbrltype": "domainItemType" }, "nbef_S000023609Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Emerging Markets Equity Fund" } } }, "localname": "S000023609Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158" ], "xbrltype": "domainItemType" }, "nbef_S000028676Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Intrinsic Value Fund" } } }, "localname": "S000028676Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088" ], "xbrltype": "domainItemType" }, "nbef_S000041658Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Greater China Equity Fund" } } }, "localname": "S000041658Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048" ], "xbrltype": "domainItemType" }, "nbef_S000047777Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Global Real Estate Fund" } } }, "localname": "S000047777Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040" ], "xbrltype": "domainItemType" }, "nbef_S000052017Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman Dividend Growth Fund" } } }, "localname": "S000052017Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001" ], "xbrltype": "domainItemType" }, "nbef_S000055729Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman International Small Cap Fund" } } }, "localname": "S000055729Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080" ], "xbrltype": "domainItemType" }, "nbef_S000071179Member": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Neuberger Berman U.S. Equity Impact Fund" } } }, "localname": "S000071179Member", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NBHAX_Class_C_Shares_NBHCX_Institutional_Class_Shares_NBHIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NBHAX), Class C Shares (NBHCX), Institutional Class Shares (NBHIX) [Member]", "terseLabel": "Class A Shares (NBHAX), Class C Shares (NBHCX), Institutional Class Shares (NBHIX)" } } }, "localname": "doc_Class_A_Shares_NBHAX_Class_C_Shares_NBHCX_Institutional_Class_Shares_NBHIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NBNAX_Class_C_Shares_NBNCX_Institutional_Class_Shares_NILIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NBNAX), Class C Shares (NBNCX), Institutional Class Shares (NILIX) [Member]", "terseLabel": "Class A Shares (NBNAX), Class C Shares (NBNCX), Institutional Class Shares (NILIX)" } } }, "localname": "doc_Class_A_Shares_NBNAX_Class_C_Shares_NBNCX_Institutional_Class_Shares_NILIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NBRAX_Class_C_Shares_NBRCX_Institutional_Class_Shares_NBRTXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NBRAX), Class C Shares (NBRCX), Institutional Class Shares (NBRTX) [Member]", "terseLabel": "Class A Shares (NBRAX), Class C Shares (NBRCX), Institutional Class Shares (NBRTX)" } } }, "localname": "doc_Class_A_Shares_NBRAX_Class_C_Shares_NBRCX_Institutional_Class_Shares_NBRTXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NCEAX_Class_C_Shares_NCECX_Institutional_Class_Shares_NCEIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX) [Member]", "terseLabel": "Class A Shares (NCEAX), Class C Shares (NCECX), Institutional Class Shares (NCEIX)" } } }, "localname": "doc_Class_A_Shares_NCEAX_Class_C_Shares_NCECX_Institutional_Class_Shares_NCEIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NDGAX_Class_C_Shares_NDGCX_Institutional_Class_Shares_NDGIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX) [Member]", "terseLabel": "Class A Shares (NDGAX), Class C Shares (NDGCX), Institutional Class Shares (NDGIX)" } } }, "localname": "doc_Class_A_Shares_NDGAX_Class_C_Shares_NDGCX_Institutional_Class_Shares_NDGIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NEMAX_Class_C_Shares_NEMCX_Institutional_Class_Shares_NEMIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NEMAX), Class C Shares (NEMCX), Institutional Class Shares (NEMIX) [Member]", "terseLabel": "Class A Shares (NEMAX), Class C Shares (NEMCX), Institutional Class Shares (NEMIX)" } } }, "localname": "doc_Class_A_Shares_NEMAX_Class_C_Shares_NEMCX_Institutional_Class_Shares_NEMIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NEQAX_Class_C_Shares_NEQCX_Institutional_Class_Shares_NEQIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NEQAX), Class C Shares (NEQCX), Institutional Class Shares (NEQIX) [Member]", "terseLabel": "Class A Shares (NEQAX), Class C Shares (NEQCX), Institutional Class Shares (NEQIX)" } } }, "localname": "doc_Class_A_Shares_NEQAX_Class_C_Shares_NEQCX_Institutional_Class_Shares_NEQIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NFAAX_Class_C_Shares_NFACX_Institutional_Class_Shares_NFALXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX) [Member]", "terseLabel": "Class A Shares (NFAAX), Class C Shares (NFACX), Institutional Class Shares (NFALX)" } } }, "localname": "doc_Class_A_Shares_NFAAX_Class_C_Shares_NFACX_Institutional_Class_Shares_NFALXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NGDAX_Class_C_Shares_NGDCX_Institutional_Class_Shares_NGDLXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NGDAX), Class C Shares (NGDCX), Institutional Class Shares (NGDLX) [Member]", "terseLabel": "Class A Shares (NGDAX), Class C Shares (NGDCX), Institutional Class Shares (NGDLX)" } } }, "localname": "doc_Class_A_Shares_NGDAX_Class_C_Shares_NGDCX_Institutional_Class_Shares_NGDLXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NGRAX_Class_C_Shares_NGRCX_Institutional_Class_Shares_NGRIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX) [Member]", "terseLabel": "Class A Shares (NGRAX), Class C Shares (NGRCX), Institutional Class Shares (NGRIX)" } } }, "localname": "doc_Class_A_Shares_NGRAX_Class_C_Shares_NGRCX_Institutional_Class_Shares_NGRIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NINAX_Class_C_Shares_NINCX_Institutional_Class_Shares_NINLXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX) [Member]", "terseLabel": "Class A Shares (NINAX), Class C Shares (NINCX), Institutional Class Shares (NINLX)" } } }, "localname": "doc_Class_A_Shares_NINAX_Class_C_Shares_NINCX_Institutional_Class_Shares_NINLXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NIOAX_Class_C_Shares_NIOCX_Institutional_Class_Shares_NIOIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NIOAX), Class C Shares (NIOCX), Institutional Class Shares (NIOIX) [Member]", "terseLabel": "Class A Shares (NIOAX), Class C Shares (NIOCX), Institutional Class Shares (NIOIX)" } } }, "localname": "doc_Class_A_Shares_NIOAX_Class_C_Shares_NIOCX_Institutional_Class_Shares_NIOIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NIQAX_Class_C_Shares_NIQCX_Institutional_Class_NBIIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NIQAX), Class C Shares (NIQCX), Institutional Class (NBIIX) [Member]", "terseLabel": "Class A Shares (NIQAX), Class C Shares (NIQCX), Institutional Class (NBIIX)" } } }, "localname": "doc_Class_A_Shares_NIQAX_Class_C_Shares_NIQCX_Institutional_Class_NBIIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NMGAX_Class_C_Shares_NMGCX_Institutional_Class_Shares_NBMLXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NMGAX), Class C Shares (NMGCX), Institutional Class Shares (NBMLX) [Member]", "terseLabel": "Class A Shares (NMGAX), Class C Shares (NMGCX), Institutional Class Shares (NBMLX)" } } }, "localname": "doc_Class_A_Shares_NMGAX_Class_C_Shares_NMGCX_Institutional_Class_Shares_NBMLXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NMUAX_Class_C_Shares_NMUCX_Institutional_Class_Shares_NMULXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX) [Member]", "terseLabel": "Class A Shares (NMUAX), Class C Shares (NMUCX), Institutional Class Shares (NMULX)" } } }, "localname": "doc_Class_A_Shares_NMUAX_Class_C_Shares_NMUCX_Institutional_Class_Shares_NMULXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NPNAX_Class_C_Shares_NPNCX_Institutional_Class_Shares_NBPIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NPNAX), Class C Shares (NPNCX), Institutional Class Shares (NBPIX) [Member]", "terseLabel": "Class A Shares (NPNAX), Class C Shares (NPNCX), Institutional Class Shares (NBPIX)" } } }, "localname": "doc_Class_A_Shares_NPNAX_Class_C_Shares_NPNCX_Institutional_Class_Shares_NBPIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NRAAX_Class_C_Shares_NRACX_Institutional_Class_Shares_NBSLXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX) [Member]", "terseLabel": "Class A Shares (NRAAX), Class C Shares (NRACX), Institutional Class Shares (NBSLX)" } } }, "localname": "doc_Class_A_Shares_NRAAX_Class_C_Shares_NRACX_Institutional_Class_Shares_NBSLXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NREAX_Class_C_Shares_NRECX_Institutional_Class_Shares_NBRIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) [Member]", "terseLabel": "Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX)" } } }, "localname": "doc_Class_A_Shares_NREAX_Class_C_Shares_NRECX_Institutional_Class_Shares_NBRIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_A_Shares_NSNAX_Class_C_Shares_NSNCX_Institutional_Class_Shares_NBSMXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class A Shares (NSNAX), Class C Shares (NSNCX), Institutional Class Shares (NBSMX) [Member]", "terseLabel": "Class A Shares (NSNAX), Class C Shares (NSNCX), Institutional Class Shares (NBSMX)" } } }, "localname": "doc_Class_A_Shares_NSNAX_Class_C_Shares_NSNCX_Institutional_Class_Shares_NBSMXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_E_Shares_NBHEXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (NBHEX) [Member]", "terseLabel": "Class E Shares (NBHEX)" } } }, "localname": "doc_Class_E_Shares_NBHEXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_E_Shares_NIQEXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (NIQEX) [Member]", "terseLabel": "Class E Shares (NIQEX)" } } }, "localname": "doc_Class_E_Shares_NIQEXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_E_Shares_NMUEXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (NMUEX) [Member]", "terseLabel": "Class E Shares (NMUEX)" } } }, "localname": "doc_Class_E_Shares_NMUEXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_E_Shares_NPNEXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (NPNEX) [Member]", "terseLabel": "Class E Shares (NPNEX)" } } }, "localname": "doc_Class_E_Shares_NPNEXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_E_Shares_NREEXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (NREEX) [Member]", "terseLabel": "Class E Shares (NREEX)" } } }, "localname": "doc_Class_E_Shares_NREEXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_E_Shares_NRGEXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class E Shares (NRGEX) [Member]", "terseLabel": "Class E Shares (NRGEX)" } } }, "localname": "doc_Class_E_Shares_NRGEXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_R3_Shares_NBHRXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 Shares (NBHRX) [Member]", "terseLabel": "Class R3 Shares (NBHRX)" } } }, "localname": "doc_Class_R3_Shares_NBHRXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_R3_Shares_NBNRXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 Shares (NBNRX) [Member]", "terseLabel": "Class R3 Shares (NBNRX)" } } }, "localname": "doc_Class_R3_Shares_NBNRXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_R3_Shares_NBRRXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 Shares (NBRRX) [Member]", "terseLabel": "Class R3 Shares (NBRRX)" } } }, "localname": "doc_Class_R3_Shares_NBRRXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_R3_Shares_NEMRXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 Shares (NEMRX) [Member]", "terseLabel": "Class R3 Shares (NEMRX)" } } }, "localname": "doc_Class_R3_Shares_NEMRXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_R3_Shares_NGDRXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 Shares (NGDRX) [Member]", "terseLabel": "Class R3 Shares (NGDRX)" } } }, "localname": "doc_Class_R3_Shares_NGDRXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_R3_Shares_NMGRXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 Shares (NMGRX) [Member]", "terseLabel": "Class R3 Shares (NMGRX)" } } }, "localname": "doc_Class_R3_Shares_NMGRXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_R3_Shares_NPNRXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 Shares (NPNRX) [Member]", "terseLabel": "Class R3 Shares (NPNRX)" } } }, "localname": "doc_Class_R3_Shares_NPNRXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_R3_Shares_NRARXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 Shares (NRARX) [Member]", "terseLabel": "Class R3 Shares (NRARX)" } } }, "localname": "doc_Class_R3_Shares_NRARXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_R3_Shares_NRERXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 Shares (NRERX) [Member]", "terseLabel": "Class R3 Shares (NRERX)" } } }, "localname": "doc_Class_R3_Shares_NRERXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207" ], "xbrltype": "domainItemType" }, "nbef_doc_Class_R3_Shares_NSNRXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Class R3 Shares (NSNRX) [Member]", "terseLabel": "Class R3 Shares (NSNRX)" } } }, "localname": "doc_Class_R3_Shares_NSNRXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214" ], "xbrltype": "domainItemType" }, "nbef_doc_Institutional_Class_Shares_NBGIXMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Institutional Class Shares (NBGIX) [Member]", "terseLabel": "Institutional Class Shares (NBGIX)" } } }, "localname": "doc_Institutional_Class_Shares_NBGIXMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033" ], "xbrltype": "domainItemType" }, "nbef_index_FTSE_EPRA_Nareit_Developed_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_FTSE_EPRA_Nareit_Developed_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "FTSE EPRA Nareit Developed Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_FTSE_EPRA_Nareit_Developed_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045" ], "xbrltype": "domainItemType" }, "nbef_index_FTSE_Nareit_All_Equity_REITs_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_FTSE_Nareit_All_Equity_REITs_Index_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "FTSE Nareit All Equity REITs Index (reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_FTSE_Nareit_All_Equity_REITs_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "domainItemType" }, "nbef_index_MSCI_All_Country_World_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_MSCI_All_Country_World_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "MSCI All Country World Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_MSCI_All_Country_World_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030" ], "xbrltype": "domainItemType" }, "nbef_index_MSCI_China_All_Shares_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_MSCI_China_All_Shares_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "MSCI China All Shares Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or taxes)*" } } }, "localname": "index_MSCI_China_All_Shares_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053" ], "xbrltype": "domainItemType" }, "nbef_index_MSCI_China_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_MSCI_China_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "MSCI China Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_MSCI_China_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053" ], "xbrltype": "domainItemType" }, "nbef_index_MSCI_EAFE_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_MSCI_EAFE_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "MSCI EAFE\u00ae Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_MSCI_EAFE_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246" ], "xbrltype": "domainItemType" }, "nbef_index_MSCI_EAFE_Small_Cap_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_MSCI_EAFE_Small_Cap_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "MSCI EAFE \u00ae Small Cap Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_MSCI_EAFE_Small_Cap_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085" ], "xbrltype": "domainItemType" }, "nbef_index_MSCI_Emerging_Markets_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_MSCI_Emerging_Markets_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "MSCI Emerging Markets Index (Net) (reflects reinvested dividends net of withholding taxes, but reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_MSCI_Emerging_Markets_Index_Net_reflects_reinvested_dividends_net_of_withholding_taxes_but_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162" ], "xbrltype": "domainItemType" }, "nbef_index_Russell_1000_Value_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_Russell_1000_Value_Index_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "Russell 1000\u00ae Value Index (reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_Russell_1000_Value_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253" ], "xbrltype": "domainItemType" }, "nbef_index_Russell_2000_Growth_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_Russell_2000_Growth_Index_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "Russell 2000\u00ae Growth Index (reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_Russell_2000_Growth_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218" ], "xbrltype": "domainItemType" }, "nbef_index_Russell_2000_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_Russell_2000_Index_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "Russell 2000\u00ae Index (reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_Russell_2000_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239" ], "xbrltype": "domainItemType" }, "nbef_index_Russell_2000_Value_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_Russell_2000_Value_Index_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "Russell 2000\u00ae Value Index (reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_Russell_2000_Value_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093" ], "xbrltype": "domainItemType" }, "nbef_index_Russell_Midcap_Growth_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_Russell_Midcap_Growth_Index_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "Russell Midcap\u00ae Growth Index (reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_Russell_Midcap_Growth_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197" ], "xbrltype": "domainItemType" }, "nbef_index_Russell_Midcap_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_Russell_Midcap_Index_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "Russell Midcap\u00ae Index (reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_Russell_Midcap_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204" ], "xbrltype": "domainItemType" }, "nbef_index_Russell_Midcap_Value_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_Russell_Midcap_Value_Index_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "Russell Midcap\u00ae Value Index (reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_Russell_Midcap_Value_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204" ], "xbrltype": "domainItemType" }, "nbef_index_SP_500_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "index_SP_500_Index_reflects_no_deduction_for_fees_expenses_or_taxes", "terseLabel": "S&P 500\u00ae Index (reflects no deduction for fees, expenses or taxes)" } } }, "localname": "index_SP_500_Index_reflects_no_deduction_for_fees_expenses_or_taxesMember", "nsuri": "http://www.nb.com/20211229", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260" ], "xbrltype": "domainItemType" }, "rr_AcquiredFundFeesAndExpensesBasedOnEstimates": { "auth_ref": [ "r28" ], "lang": { "en-us": { "role": { "documentation": "This element represents a statement that \"Acquired Fund\" (as defined) fees and expenses for the current year are based on estimates.", "label": "Acquired Fund Fees and Expenses, Based on Estimates [Text]", "terseLabel": "Acquired Fund Fees and Expenses, Based on Estimates [Text]" } } }, "localname": "AcquiredFundFeesAndExpensesBasedOnEstimates", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_AcquiredFundFeesAndExpensesOverAssets": { "auth_ref": [ "r37" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": 4.0, "parentTag": "rr_ExpensesOverAssets", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Total Annual Fund Operating Expenses.", "label": "Acquired Fund Fees and Expenses", "terseLabel": "Acquired Fund Fees and Expenses" } } }, "localname": "AcquiredFundFeesAndExpensesOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_AfterTaxesOnDistributionsAndSalesMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Calculate the taxes due on any distributions by the Fund by applying the tax rates specified in Instruction 4 to each component of the distributions on the reinvestment date (e.g., ordinary income, short-term capital gain, long-term capital gain). The taxable amount and tax character of each distribution should be as specified by the Fund on the dividend declaration date, but may be adjusted to reflect subsequent recharacterizations of distributions. Distributions should be adjusted to reflect the federal tax impact the distribution would have on an individual taxpayer on the reinvestment date. For example, assume no taxes are due on the portion of any distribution that would not result in federal income tax on an individual, e.g., tax-exempt interest or non-taxable returns of capital. The effect of applicable tax credits, such as the foreign tax credit, should be taken into account in accordance with federal tax law.", "label": "After Taxes on Distributions and Sale of Fund Shares", "terseLabel": "After Taxes on Distributions and Sales" } } }, "localname": "AfterTaxesOnDistributionsAndSalesMember", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "domainItemType" }, "rr_AfterTaxesOnDistributionsMember": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Calculate the taxes due on any distributions by the Fund by applying the tax rates specified in Instruction 4 to each component of the distributions on the reinvestment date (e.g., ordinary income, short-term capital gain, long-term capital gain). The taxable amount and tax character of each distribution should be as specified by the Fund on the dividend declaration date, but may be adjusted to reflect subsequent recharacterizations of distributions. Distributions should be adjusted to reflect the federal tax impact the distribution would have on an individual taxpayer on the reinvestment date. For example, assume no taxes are due on the portion of any distribution that would not result in federal income tax on an individual, e.g., tax-exempt interest or non-taxable returns of capital. The effect of applicable tax credits, such as the foreign tax credit, should be taken into account in accordance with federal tax law.", "label": "After Taxes on Distributions", "terseLabel": "After Taxes on Distributions" } } }, "localname": "AfterTaxesOnDistributionsMember", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "domainItemType" }, "rr_AnnualFundOperatingExpensesTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Contains a command for the SEC Viewer for the role corresponding to OperatingExpensesData.", "label": "Annual Fund Operating Expenses [Table]" } } }, "localname": "AnnualFundOperatingExpensesTableTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_AnnualReturn1990": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 1990", "terseLabel": "Annual Return 1990" } } }, "localname": "AnnualReturn1990", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn1991": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 1991", "terseLabel": "Annual Return 1991" } } }, "localname": "AnnualReturn1991", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn1992": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 1992", "terseLabel": "Annual Return 1992" } } }, "localname": "AnnualReturn1992", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn1993": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 1993", "terseLabel": "Annual Return 1993" } } }, "localname": "AnnualReturn1993", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn1994": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 1994", "terseLabel": "Annual Return 1994" } } }, "localname": "AnnualReturn1994", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn1995": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 1995", "terseLabel": "Annual Return 1995" } } }, "localname": "AnnualReturn1995", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn1996": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 1996", "terseLabel": "Annual Return 1996" } } }, "localname": "AnnualReturn1996", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn1997": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 1997", "terseLabel": "Annual Return 1997" } } }, "localname": "AnnualReturn1997", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn1998": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 1998", "terseLabel": "Annual Return 1998" } } }, "localname": "AnnualReturn1998", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn1999": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 1999", "terseLabel": "Annual Return 1999" } } }, "localname": "AnnualReturn1999", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2000": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2000", "terseLabel": "Annual Return 2000" } } }, "localname": "AnnualReturn2000", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2001": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2001", "terseLabel": "Annual Return 2001" } } }, "localname": "AnnualReturn2001", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2002": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2002", "terseLabel": "Annual Return 2002" } } }, "localname": "AnnualReturn2002", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2003": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2003", "terseLabel": "Annual Return 2003" } } }, "localname": "AnnualReturn2003", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2004": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2004", "terseLabel": "Annual Return 2004" } } }, "localname": "AnnualReturn2004", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2005": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2005", "terseLabel": "Annual Return 2005" } } }, "localname": "AnnualReturn2005", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2006": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2006", "terseLabel": "Annual Return 2006" } } }, "localname": "AnnualReturn2006", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2007": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2007", "terseLabel": "Annual Return 2007" } } }, "localname": "AnnualReturn2007", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2008": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2008", "terseLabel": "Annual Return 2008" } } }, "localname": "AnnualReturn2008", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2009": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2009", "terseLabel": "Annual Return 2009" } } }, "localname": "AnnualReturn2009", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2010": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2010", "terseLabel": "Annual Return 2010" } } }, "localname": "AnnualReturn2010", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2011": { "auth_ref": [ "r67" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2011", "terseLabel": "Annual Return 2011" } } }, "localname": "AnnualReturn2011", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2012": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2012", "terseLabel": "Annual Return 2012" } } }, "localname": "AnnualReturn2012", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2013": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2013", "terseLabel": "Annual Return 2013" } } }, "localname": "AnnualReturn2013", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2014": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2014", "terseLabel": "Annual Return 2014" } } }, "localname": "AnnualReturn2014", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2015": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2015", "terseLabel": "Annual Return 2015" } } }, "localname": "AnnualReturn2015", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2016": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2016", "terseLabel": "Annual Return 2016" } } }, "localname": "AnnualReturn2016", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2017": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2017", "terseLabel": "Annual Return 2017" } } }, "localname": "AnnualReturn2017", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2018": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2018", "terseLabel": "Annual Return 2018" } } }, "localname": "AnnualReturn2018", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2019": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2019", "terseLabel": "Annual Return 2019" } } }, "localname": "AnnualReturn2019", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2020": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2020", "terseLabel": "Annual Return 2020" } } }, "localname": "AnnualReturn2020", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2021": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2021", "terseLabel": "Annual Return 2021" } } }, "localname": "AnnualReturn2021", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2022": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2022", "terseLabel": "Annual Return 2022" } } }, "localname": "AnnualReturn2022", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2023": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2023", "terseLabel": "Annual Return 2023" } } }, "localname": "AnnualReturn2023", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2024": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2024", "terseLabel": "Annual Return 2024" } } }, "localname": "AnnualReturn2024", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturn2025": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).", "label": "Annual Return 2025", "terseLabel": "Annual Return 2025" } } }, "localname": "AnnualReturn2025", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "pureItemType" }, "rr_AnnualReturnCaption": { "auth_ref": [ "r68" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. Provide annual total returns beginning with the earliest calendar year. Calculate annual returns using the Instructions to Item 8(a), except that the calculations should be based on calendar years. If a Fund's shares are sold subject to a sales load or account fees, state that sales loads or account fees are not reflected in the bar chart and that, if these amounts were reflected, returns would be less than those shown. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). When a Multiple Class Fund offering one or more Classes offers a new Class in a prospectus that does not offer the shares of any other Class, include the bar chart with annual total returns for any other existing Class for the first year that the Class is offered. Explain in a footnote that the returns are for a Class that is not offered in the prospectus that would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Classes do not have the same expenses. Include return information for the other Class reflected in the bar chart in the performance table.", "label": "Annual Return Caption [Text]", "terseLabel": "Annual Return Caption [Text]" } } }, "localname": "AnnualReturnCaption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_AnnualReturnColumnName": { "auth_ref": [ "r61" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. Provide annual total returns beginning with the earliest calendar year. Calculate annual returns using the Instructions to Item 8(a), except that the calculations should be based on calendar years. If a Fund's shares are sold subject to a sales load or account fees, state that sales loads or account fees are not reflected in the bar chart and that, if these amounts were reflected, returns would be less than those shown. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). When a Multiple Class Fund offering one or more Classes offers a new Class in a prospectus that does not offer the shares of any other Class, include the bar chart with annual total returns for any other existing Class for the first year that the Class is offered. Explain in a footnote that the returns are for a Class that is not offered in the prospectus that would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Classes do not have the same expenses. Include return information for the other Class reflected in the bar chart in the performance table.", "label": "Annual Return, Column [Text]", "terseLabel": "Annual Return, Column [Text]" } } }, "localname": "AnnualReturnColumnName", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_AnnualReturnInceptionDate": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. Provide annual total returns beginning with the earliest calendar year. Calculate annual returns using the Instructions to Item 8(a), except that the calculations should be based on calendar years. If a Fund's shares are sold subject to a sales load or account fees, state that sales loads or account fees are not reflected in the bar chart and that, if these amounts were reflected, returns would be less than those shown. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). When a Multiple Class Fund offering one or more Classes offers a new Class in a prospectus that does not offer the shares of any other Class, include the bar chart with annual total returns for any other existing Class for the first year that the Class is offered. Explain in a footnote that the returns are for a Class that is not offered in the prospectus that would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Classes do not have the same expenses. Include return information for the other Class reflected in the bar chart in the performance table.", "label": "Annual Return, Inception Date", "terseLabel": "Annual Return, Inception Date" } } }, "localname": "AnnualReturnInceptionDate", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "dateItemType" }, "rr_AverageAnnualReturnAbstract": { "auth_ref": [], "localname": "AverageAnnualReturnAbstract", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "stringItemType" }, "rr_AverageAnnualReturnCaption": { "auth_ref": [ "r72" ], "lang": { "en-us": { "role": { "documentation": "This item represents Average Annual Total Returns. If a Multiple Class Fund offers a Class in the prospectus that converts into another Class after a stated period, compute average annual total returns in the table by using the returns of the other Class for the period after conversion.", "label": "Average Annual Return, Caption", "terseLabel": "Average Annual Return, Caption" } } }, "localname": "AverageAnnualReturnCaption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_AverageAnnualReturnColumnName": { "auth_ref": [ "r58" ], "lang": { "en-us": { "role": { "documentation": "This item represents Average Annual Total Returns. If a Multiple Class Fund offers a Class in the prospectus that converts into another Class after a stated period, compute average annual total returns in the table by using the returns of the other Class for the period after conversion.", "label": "Average Annual Return, Column Name", "terseLabel": "Average Annual Return, Column Name" } } }, "localname": "AverageAnnualReturnColumnName", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_AverageAnnualReturnInceptionDate": { "auth_ref": [ "r71" ], "lang": { "en-us": { "role": { "documentation": "Return Before Taxes.", "label": "Inception Date", "terseLabel": "Inception Date" } } }, "localname": "AverageAnnualReturnInceptionDate", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "dateItemType" }, "rr_AverageAnnualReturnLabel": { "auth_ref": [ "r59" ], "lang": { "en-us": { "role": { "documentation": "This item represents Average Annual Total Returns. If a Multiple Class Fund offers a Class in the prospectus that converts into another Class after a stated period, compute average annual total returns in the table by using the returns of the other Class for the period after conversion.", "label": "Label", "terseLabel": "Label" } } }, "localname": "AverageAnnualReturnLabel", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_AverageAnnualReturnSinceInception": { "auth_ref": [ "r59" ], "lang": { "en-us": { "role": { "documentation": "Return Before Taxes.", "label": "Since Inception", "terseLabel": "Since Inception" } } }, "localname": "AverageAnnualReturnSinceInception", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "pureItemType" }, "rr_AverageAnnualReturnYear01": { "auth_ref": [ "r59" ], "lang": { "en-us": { "role": { "documentation": "Return Before Taxes.", "label": "1 Year", "terseLabel": "1 Year" } } }, "localname": "AverageAnnualReturnYear01", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "pureItemType" }, "rr_AverageAnnualReturnYear05": { "auth_ref": [ "r59" ], "lang": { "en-us": { "role": { "documentation": "Return Before Taxes.", "label": "5 Years", "terseLabel": "5 Years" } } }, "localname": "AverageAnnualReturnYear05", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "pureItemType" }, "rr_AverageAnnualReturnYear10": { "auth_ref": [ "r59" ], "lang": { "en-us": { "role": { "documentation": "Return Before Taxes.", "label": "10 Years", "terseLabel": "10 Years" } } }, "localname": "AverageAnnualReturnYear10", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "pureItemType" }, "rr_BarChartAndPerformanceTableHeading": { "auth_ref": [ "r54" ], "lang": { "en-us": { "role": { "documentation": "Risk/Return Bar Chart and Table.", "label": "Bar Chart and Performance Table [Heading]", "terseLabel": "Bar Chart and Performance Table [Heading]" } } }, "localname": "BarChartAndPerformanceTableHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_BarChartClosingTextBlock": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.", "label": "Bar Chart Closing [Text Block]", "terseLabel": "Bar Chart Closing [Text Block]" } } }, "localname": "BarChartClosingTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_BarChartDoesNotReflectSalesLoads": { "auth_ref": [ "r55" ], "lang": { "en-us": { "role": { "documentation": "Include the bar chart and table required by Item 4 (b)(2)(ii) and (iii) of this section. Provide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Provide annual total returns beginning with the earliest calendar year. Calculate annual returns using the Instructions to Item 8(a), except that the calculations should be based on calendar years. If a Fund's shares are sold subject to a sales load or account fees, state that sales loads or account fees are not reflected in the bar chart and that, if these amounts were reflected, returns would be less than those shown.", "label": "Bar Chart Does Not Reflect Sales Loads [Text]", "terseLabel": "Bar Chart Does Not Reflect Sales Loads [Text]" } } }, "localname": "BarChartDoesNotReflectSalesLoads", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_BarChartFootnotesTextBlock": { "auth_ref": [ "r66" ], "lang": { "en-us": { "role": { "documentation": "Multiple Class Funds.", "label": "Bar Chart Footnotes [Text Block]", "terseLabel": "Bar Chart Footnotes [Text Block]" } } }, "localname": "BarChartFootnotesTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_BarChartHeading": { "auth_ref": [ "r54" ], "lang": { "en-us": { "role": { "documentation": "Risk/Return Bar Chart and Table.", "label": "Bar Chart [Heading]", "terseLabel": "Bar Chart [Heading]" } } }, "localname": "BarChartHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_BarChartHighestQuarterlyReturn": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.", "label": "Highest Quarterly Return", "terseLabel": "Highest Quarterly Return" } } }, "localname": "BarChartHighestQuarterlyReturn", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "pureItemType" }, "rr_BarChartHighestQuarterlyReturnDate": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.", "label": "Highest Quarterly Return, Date", "terseLabel": "Highest Quarterly Return, Date" } } }, "localname": "BarChartHighestQuarterlyReturnDate", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "dateItemType" }, "rr_BarChartLowestQuarterlyReturn": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.", "label": "Lowest Quarterly Return", "terseLabel": "Lowest Quarterly Return" } } }, "localname": "BarChartLowestQuarterlyReturn", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "pureItemType" }, "rr_BarChartLowestQuarterlyReturnDate": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.", "label": "Lowest Quarterly Return, Date", "terseLabel": "Lowest Quarterly Return, Date" } } }, "localname": "BarChartLowestQuarterlyReturnDate", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "dateItemType" }, "rr_BarChartNarrativeTextBlock": { "auth_ref": [ "r55" ], "lang": { "en-us": { "role": { "documentation": "Provide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.", "label": "Bar Chart Narrative [Text Block]", "terseLabel": "Bar Chart Narrative [Text Block]" } } }, "localname": "BarChartNarrativeTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_BarChartReasonSelectedClassDifferentFromImmediatelyPrecedingPeriod": { "auth_ref": [ "r70" ], "lang": { "en-us": { "role": { "documentation": "If the Fund provides annual total returns in the bar chart for a Class that is different from the Class selected for the most immediately preceding period, explain in a footnote to the bar chart the reasons for the selection of a different Class.", "label": "Bar Chart, Reason Selected Class Different from Immediately Preceding Period [Text]", "terseLabel": "Bar Chart, Reason Selected Class Different from Immediately Preceding Period [Text]" } } }, "localname": "BarChartReasonSelectedClassDifferentFromImmediatelyPrecedingPeriod", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_BarChartReturnsForClassNotOfferedInProspectus": { "auth_ref": [ "r68" ], "lang": { "en-us": { "role": { "documentation": "When a Multiple Class Fund offering one or more Classes offers a new Class in a prospectus that does not offer the shares of any other Class, include the bar chart with annual total returns for any other existing Class for the first year that the Class is offered. Explain in a footnote that the returns are for a Class that is not offered in the prospectus that would have substantially similar annual returns because the shares are invested in the same portfolio of securities and the annual returns would differ only to the extent that the Classes do not have the same expenses. Include return information for the other Class reflected in the bar chart in the performance table.", "label": "Bar Chart, Returns for Class Not Offered in Prospectus [Text]", "terseLabel": "Bar Chart, Returns for Class Not Offered in Prospectus [Text]" } } }, "localname": "BarChartReturnsForClassNotOfferedInProspectus", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_BarChartTableAbstract": { "auth_ref": [], "localname": "BarChartTableAbstract", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266" ], "xbrltype": "stringItemType" }, "rr_BarChartTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Contains a command for the SEC Viewer for the role corresponding to BarChartData.", "label": "Bar Chart [Table]" } } }, "localname": "BarChartTableTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_BarChartYearToDateReturn": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.", "label": "Bar Chart, Year to Date Return", "terseLabel": "Bar Chart, Year to Date Return" } } }, "localname": "BarChartYearToDateReturn", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "pureItemType" }, "rr_BarChartYearToDateReturnDate": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.", "label": "Bar Chart, Year to Date Return, Date", "terseLabel": "Bar Chart, Year to Date Return, Date" } } }, "localname": "BarChartYearToDateReturnDate", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "dateItemType" }, "rr_Component1OtherExpensesOverAssets": { "auth_ref": [ "r24" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": 0.0, "parentTag": "rr_OtherExpensesOverAssets", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "The Fund may subdivide this caption into no more than three subcaptions that identify the largest expense or expenses comprising \"Other Expenses,\" but must include a total of all \"Other Expenses.\" Alternatively, the Fund may include the components of \"Other Expenses\" in a parenthetical to the caption.", "label": "Component1 Other Expenses", "terseLabel": "Component1 Other Expenses" } } }, "localname": "Component1OtherExpensesOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_Component2OtherExpensesOverAssets": { "auth_ref": [ "r36" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": 1.0, "parentTag": "rr_OtherExpensesOverAssets", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "The Fund may subdivide this caption into no more than three subcaptions that identify the largest expense or expenses comprising \"Other Expenses,\" but must include a total of all \"Other Expenses.\" Alternatively, the Fund may include the components of \"Other Expenses\" in a parenthetical to the caption.", "label": "Component2 Other Expenses", "terseLabel": "Component2 Other Expenses" } } }, "localname": "Component2OtherExpensesOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_Component3OtherExpensesOverAssets": { "auth_ref": [ "r24" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": 2.0, "parentTag": "rr_OtherExpensesOverAssets", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "The Fund may subdivide this caption into no more than three subcaptions that identify the largest expense or expenses comprising \"Other Expenses,\" but must include a total of all \"Other Expenses.\" Alternatively, the Fund may include the components of \"Other Expenses\" in a parenthetical to the caption.", "label": "Component3 Other Expenses", "terseLabel": "Component3 Other Expenses" } } }, "localname": "Component3OtherExpensesOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_DistributionAndService12b1FeesOverAssets": { "auth_ref": [ "r43" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": 1.0, "parentTag": "rr_ExpensesOverAssets", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Distribution [and/or Service] (12b-1) Fees\" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of \"Other Expenses,\" disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan.", "label": "Distribution and/or shareholder service (12b-1) fees", "terseLabel": "Distribution and Service (12b-1) Fees" } } }, "localname": "DistributionAndService12b1FeesOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264" ], "xbrltype": "NonNegativePure4Type" }, "rr_DistributionOrSimilarNon12b1FeesOverAssets": { "auth_ref": [ "r21" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": 2.0, "parentTag": "rr_ExpensesOverAssets", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Distribution [and/or Service] (12b-1) Fees\" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of \"Other Expenses,\" disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan.", "label": "Distribution or Similar (Non 12b-1) Fees", "terseLabel": "Distribution or Similar (Non 12b-1) Fees" } } }, "localname": "DistributionOrSimilarNon12b1FeesOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_ExchangeFee": { "auth_ref": [ "r40" ], "lang": { "en-us": { "role": { "documentation": "Exchange Fee includes the maximum fee charged for any exchange or transfer of interest from the Fund to another fund. The Fund may include in a footnote to the table, if applicable, a tabular presentation of the range of exchange fees or a narrative explanation of the fees.", "label": "Exchange Fee", "terseLabel": "Exchange Fee" } } }, "localname": "ExchangeFee", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_ExchangeFeeOverRedemption": { "auth_ref": [ "r18" ], "lang": { "en-us": { "role": { "documentation": "Exchange Fee includes the maximum fee charged for any exchange or transfer of interest from the Fund to another fund. The Fund may include in a footnote to the table, if applicable, a tabular presentation of the range of exchange fees or a narrative explanation of the fees.", "label": "Exchange Fee (as a percentage of Amount Redeemed)", "terseLabel": "Exchange Fee (as a percentage of Amount Redeemed)" } } }, "localname": "ExchangeFeeOverRedemption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_ExpenseBreakpointDiscounts": { "auth_ref": [ "r11" ], "lang": { "en-us": { "role": { "documentation": "Include the narrative explanations in the order indicated. A Fund may modify the narrative explanations if the explanation contains comparable information to that shown. The narrative explanation regarding sales charge discounts is only required by a Fund that offers such discounts and should specify the minimum level of investment required to qualify for a discount.", "label": "Expense Breakpoint Discounts [Text]", "terseLabel": "Expense Breakpoint Discounts [Text]" } } }, "localname": "ExpenseBreakpointDiscounts", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpenseBreakpointMinimumInvestmentRequiredAmount": { "auth_ref": [ "r11" ], "lang": { "en-us": { "role": { "documentation": "This element represents the minimum level of investment required to qualify for discounted sales charges or fund expenses (SEC Form N-1A 2006-09-14 A.3.instructions.1.b).", "label": "Expense Breakpoint, Minimum Investment Required [Amount]", "terseLabel": "Expense Breakpoint, Minimum Investment Required [Amount]" } } }, "localname": "ExpenseBreakpointMinimumInvestmentRequiredAmount", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "monetaryItemType" }, "rr_ExpenseExampleAbstract": { "auth_ref": [], "localname": "ExpenseExampleAbstract", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265" ], "xbrltype": "stringItemType" }, "rr_ExpenseExampleByYearCaption": { "auth_ref": [ "r7" ], "lang": { "en-us": { "role": { "documentation": "The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.", "label": "Expense Example by, Year, Caption [Text]", "terseLabel": "Expense Example by, Year, Caption [Text]" } } }, "localname": "ExpenseExampleByYearCaption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpenseExampleByYearColumnName": { "auth_ref": [ "r7" ], "lang": { "en-us": { "role": { "documentation": "The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.", "label": "Expense Example, By Year, Column [Text]", "terseLabel": "Expense Example, By Year, Column [Text]" } } }, "localname": "ExpenseExampleByYearColumnName", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265" ], "xbrltype": "textBlockItemType" }, "rr_ExpenseExampleByYearHeading": { "auth_ref": [ "r7" ], "lang": { "en-us": { "role": { "documentation": "The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.", "label": "Expense Example by Year [Heading]", "terseLabel": "Expense Example by Year [Heading]" } } }, "localname": "ExpenseExampleByYearHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpenseExampleClosingTextBlock": { "auth_ref": [ "r30" ], "lang": { "en-us": { "role": { "documentation": "The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher.", "label": "Expense Example Closing [Text Block]", "terseLabel": "Expense Example Closing [Text Block]" } } }, "localname": "ExpenseExampleClosingTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ExpenseExampleFootnotesTextBlock": { "auth_ref": [ "r9" ], "lang": { "en-us": { "role": { "documentation": "The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher.", "label": "Expense Example Footnotes [Text Block]", "terseLabel": "Expense Example Footnotes [Text Block]" } } }, "localname": "ExpenseExampleFootnotesTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ExpenseExampleHeading": { "auth_ref": [ "r30" ], "lang": { "en-us": { "role": { "documentation": "Heading for Expense Example.", "label": "Expense Example [Heading]", "terseLabel": "Expense Example [Heading]" } } }, "localname": "ExpenseExampleHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpenseExampleNarrativeTextBlock": { "auth_ref": [ "r6" ], "lang": { "en-us": { "role": { "documentation": "The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.", "label": "Expense Example Narrative [Text Block]", "terseLabel": "Expense Example Narrative [Text Block]" } } }, "localname": "ExpenseExampleNarrativeTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ExpenseExampleNoRedemptionByYearCaption": { "auth_ref": [ "r8" ], "lang": { "en-us": { "role": { "documentation": "You would pay the following expenses if you did not redeem your shares. Include the second 1-, 3-, 5-, and 10-year periods and related narrative explanation only if a sales charge (load) or other fee is charged upon redemption.", "label": "Expense Example, No Redemption, By Year, Caption [Text]", "terseLabel": "Expense Example, No Redemption, By Year, Caption [Text]" } } }, "localname": "ExpenseExampleNoRedemptionByYearCaption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpenseExampleNoRedemptionByYearColumnName": { "auth_ref": [ "r8" ], "lang": { "en-us": { "role": { "documentation": "You would pay the following expenses if you did not redeem your shares.", "label": "Expense Example, No Redemption, By Year, Column [Text]", "terseLabel": "Expense Example, No Redemption, By Year, Column [Text]" } } }, "localname": "ExpenseExampleNoRedemptionByYearColumnName", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155" ], "xbrltype": "textBlockItemType" }, "rr_ExpenseExampleNoRedemptionNarrativeTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Contains a command for the SEC Viewer for the role corresponding to ExpenseExampleNoRedemption.", "label": "Expense Example, No Redemption Narrative [Text Block]", "terseLabel": "Expense Example, No Redemption Narrative [Text Block]" } } }, "localname": "ExpenseExampleNoRedemptionNarrativeTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ExpenseExampleNoRedemptionTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Contains a command for the SEC Viewer for the role corresponding to ExpenseExampleNoRedemption.", "label": "Expense Example, No Redemption [Table]" } } }, "localname": "ExpenseExampleNoRedemptionTableTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ExpenseExampleNoRedemptionYear01": { "auth_ref": [ "r8" ], "lang": { "en-us": { "role": { "documentation": "You would pay the following expenses if you did not redeem your shares. Include the second 1-, 3-, 5-, and 10-year periods and related narrative explanation only if a sales charge (load) or other fee is charged upon redemption.", "label": "Expense Example, No Redemption, 1 Year", "terseLabel": "1 Year" } } }, "localname": "ExpenseExampleNoRedemptionYear01", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_ExpenseExampleNoRedemptionYear03": { "auth_ref": [ "r8" ], "lang": { "en-us": { "role": { "documentation": "You would pay the following expenses if you did not redeem your shares. Include the second 1-, 3-, 5-, and 10-year periods and related narrative explanation only if a sales charge (load) or other fee is charged upon redemption.", "label": "Expense Example, No Redemption, 3 Years", "terseLabel": "3 Years" } } }, "localname": "ExpenseExampleNoRedemptionYear03", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_ExpenseExampleNoRedemptionYear05": { "auth_ref": [ "r31" ], "lang": { "en-us": { "role": { "documentation": "You would pay the following expenses if you did not redeem your shares. Include the second 1-, 3-, 5-, and 10-year periods and related narrative explanation only if a sales charge (load) or other fee is charged upon redemption.", "label": "Expense Example, No Redemption, 5 Years", "terseLabel": "5 Years" } } }, "localname": "ExpenseExampleNoRedemptionYear05", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_ExpenseExampleNoRedemptionYear10": { "auth_ref": [ "r31" ], "lang": { "en-us": { "role": { "documentation": "You would pay the following expenses if you did not redeem your shares. Include the second 1-, 3-, 5-, and 10-year periods and related narrative explanation only if a sales charge (load) or other fee is charged upon redemption.", "label": "Expense Example, No Redemption, 10 Years", "terseLabel": "10 Years" } } }, "localname": "ExpenseExampleNoRedemptionYear10", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_ExpenseExampleWithRedemptionTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Contains a command for the SEC Viewer for the role corresponding to ExpenseExample.", "label": "Expense Example, With Redemption [Table]" } } }, "localname": "ExpenseExampleWithRedemptionTableTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ExpenseExampleYear01": { "auth_ref": [ "r30" ], "lang": { "en-us": { "role": { "documentation": "The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.", "label": "Expense Example, with Redemption, 1 Year", "terseLabel": "1 Year" } } }, "localname": "ExpenseExampleYear01", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_ExpenseExampleYear03": { "auth_ref": [ "r7" ], "lang": { "en-us": { "role": { "documentation": "The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.", "label": "Expense Example, with Redemption, 3 Years", "terseLabel": "3 Years" } } }, "localname": "ExpenseExampleYear03", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_ExpenseExampleYear05": { "auth_ref": [ "r7" ], "lang": { "en-us": { "role": { "documentation": "The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.", "label": "Expense Example, with Redemption, 5 Years", "terseLabel": "5 Years" } } }, "localname": "ExpenseExampleYear05", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_ExpenseExampleYear10": { "auth_ref": [ "r7" ], "lang": { "en-us": { "role": { "documentation": "The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower.", "label": "Expense Example, with Redemption, 10 Years", "terseLabel": "10 Years" } } }, "localname": "ExpenseExampleYear10", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_ExpenseExchangeTradedFundCommissions": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Modify the narrative explanation to state that Fund shares are sold on a national securities exchange at the end of the time periods indicated, and that brokerage commissions for buying and selling Fund shares through a broker are not reflected.", "label": "Expense Exchange Traded Fund Commissions [Text] (Deprecated 2021-01-31)", "terseLabel": "Expense Exchange Traded Fund Commissions [Text] (Deprecated 2021-01-31)" } } }, "localname": "ExpenseExchangeTradedFundCommissions", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpenseFootnotesTextBlock": { "auth_ref": [ "r15" ], "lang": { "en-us": { "role": { "documentation": "Shareholder Fees.", "label": "Expense Footnotes [Text Block]", "terseLabel": "Expense Footnotes [Text Block]" } } }, "localname": "ExpenseFootnotesTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ExpenseHeading": { "auth_ref": [ "r13" ], "lang": { "en-us": { "role": { "documentation": "Risk/Return Summary Fee Table Includes the following information, in plain English under rule 421(d) under the Securities Act, after Item 2 Fees and expenses of the Fund This table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Shareholder Fees (fees paid directly from your investment) Example This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be You would pay the following expenses if you did not redeem your shares The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher. Portfolio Turnover The Fund pays transaction costs, such as commissions, when it buys and sells securities (or \"turns over\" its portfolio). A higher portfolio turnover may indicate higher transaction costs. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was __% of the average value of its whole portfolio. Instructions. A.3.instructions.6 New Funds. For purposes of this Item, a \"New Fund\" is a Fund that does not include in Form N-1A financial statements reporting operating results or that includes financial statements for the Fund's initial fiscal year reporting operating results for a period of 6 months or less. The following Instructions apply to New Funds.", "label": "Expense [Heading]", "terseLabel": "Expense [Heading]" } } }, "localname": "ExpenseHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpenseNarrativeTextBlock": { "auth_ref": [ "r11" ], "lang": { "en-us": { "role": { "documentation": "This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[ ] in [name of fund family] funds. More information about these and other discounts is available from your financial intermediary and in [identify section heading and page number] of the Fund's prospectus and [identify section heading and page number] of the Fund's statement of additional information", "label": "Expense Narrative [Text Block]", "terseLabel": "Expense Narrative [Text Block]" } } }, "localname": "ExpenseNarrativeTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ExpensesDeferredChargesTextBlock": { "auth_ref": [ "r16" ], "lang": { "en-us": { "role": { "documentation": "A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter).", "label": "Expenses Deferred Charges [Text Block]", "terseLabel": "Expenses Deferred Charges [Text Block]" } } }, "localname": "ExpensesDeferredChargesTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ExpensesExplanationOfNonrecurringAccountFee": { "auth_ref": [ "r19" ], "lang": { "en-us": { "role": { "documentation": "The Fund may include an explanation of any non-recurring account fee in a parenthetical to the caption or in a footnote to the table.", "label": "Expenses Explanation of Nonrecurring Account Fee [Text]", "terseLabel": "Expenses Explanation of Nonrecurring Account Fee [Text]" } } }, "localname": "ExpensesExplanationOfNonrecurringAccountFee", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees": { "auth_ref": [ "r29" ], "lang": { "en-us": { "role": { "documentation": "The Fund may clarify in a footnote to the fee table that the total annual fund operating expenses under Item 3 do not correlate to the ratio of expenses to average net assets given in response to Item 8, which reflects the operating expenses of the Fund and does not include Acquired Fund fees and expenses.", "label": "Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]", "terseLabel": "Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]" } } }, "localname": "ExpensesNotCorrelatedToRatioDueToAcquiredFundFees", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpensesOtherExpensesHadExtraordinaryExpensesBeenIncluded": { "auth_ref": [ "r23" ], "lang": { "en-us": { "role": { "documentation": "\"Other Expenses\" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's \"Other Expenses,\" disclose in a footnote to the table what \"Other Expenses\" would have been had the extraordinary expenses been included.", "label": "Expenses Other Expenses Had Extraordinary Expenses Been Included [Text]", "terseLabel": "Expenses Other Expenses Had Extraordinary Expenses Been Included [Text]" } } }, "localname": "ExpensesOtherExpensesHadExtraordinaryExpensesBeenIncluded", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpensesOverAssets": { "auth_ref": [ "r25" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": 0.0, "parentTag": "rr_NetExpensesOverAssets", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Total Annual Fund Operating Expenses. If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds. If the prospectus offers more than one Class of a Multiple Class Fund or more than one Feeder Fund that invests in the same Master Fund, provide a separate response for each Class or Feeder Fund. Base the percentages of \"Annual Fund Operating Expenses\" on amounts incurred during the Fund's most recent fiscal year, but include in expenses amounts that would have been incurred absent expense reimbursement or fee waiver arrangements. If the Fund has changed its fiscal year and, as a result, the most recent fiscal year is less than three months, use the fiscal year prior to the most recent fiscal year as the basis for determining \"Annual Fund Operating Expenses.\"", "label": "Total annual operating expenses", "terseLabel": "Expenses (as a percentage of Assets)" } } }, "localname": "ExpensesOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264" ], "xbrltype": "NonNegativePure4Type" }, "rr_ExpensesRangeOfExchangeFeesTextBlock": { "auth_ref": [ "r18" ], "lang": { "en-us": { "role": { "documentation": "The Fund may include in a footnote to the table, if applicable, a tabular presentation of the range of exchange fees or a narrative explanation of the fees.", "label": "Expenses Range of Exchange Fees [Text Block]", "terseLabel": "Expenses Range of Exchange Fees [Text Block]" } } }, "localname": "ExpensesRangeOfExchangeFeesTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ExpensesRepresentBothMasterAndFeeder": { "auth_ref": [ "r14" ], "lang": { "en-us": { "role": { "documentation": "If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds.", "label": "Expenses Represent Both Master and Feeder [Text]", "terseLabel": "Expenses Represent Both Master and Feeder [Text]" } } }, "localname": "ExpensesRepresentBothMasterAndFeeder", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ExpensesRestatedToReflectCurrent": { "auth_ref": [ "r26" ], "lang": { "en-us": { "role": { "documentation": "In a footnote to the table, disclose that the expense information in the table has been restated to reflect current fees.", "label": "Expenses Restated to Reflect Current [Text]", "terseLabel": "Expenses Restated to Reflect Current [Text]" } } }, "localname": "ExpensesRestatedToReflectCurrent", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_FeeWaiverOrReimbursementOverAssets": { "auth_ref": [ "r37" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": 1.0, "parentTag": "rr_NetExpensesOverAssets", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Total Annual Fund Operating Expenses. If there were expense reimbursement or fee waiver arrangements that reduced any Fund operating expenses and will continue to reduce them for no less than one year from the effective date of the Fund's registration statement, a Fund may add two captions to the table one caption showing the amount of the expense reimbursement or fee waiver, and a second caption showing the Fund's net expenses after subtracting the fee reimbursement or expense waiver from the total fund operating expenses. The Fund should place these additional captions directly below the \"Total Annual Fund Operating Expenses\" caption of the table and should use appropriate descriptive captions, such as \"Fee Waiver [and/or Expense Reimbursement]\" and \"Total Annual Fund Operating Expenses After Fee Waiver [and/or Expense Reimbursement],\" respectively. If the Fund provides this disclosure, also disclose the period for which the expense reimbursement or fee waiver arrangement is expected to continue, and briefly describe who can terminate the arrangement and under what circumstances.", "label": "Fee waiver and/or expense reimbursement", "negatedLabel": "Fee waiver and/or expense reimbursement", "terseLabel": "Fee Waiver or Reimbursement" } } }, "localname": "FeeWaiverOrReimbursementOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264" ], "xbrltype": "NonPositivePure4Type" }, "rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination": { "auth_ref": [ "r27" ], "lang": { "en-us": { "role": { "documentation": "This element represents the date of expected termination of any expense reimbursement or fee waiver arrangements that reduce any Fund operating expenses (SEC Form N-1A 2006-09-14 A.3.table.1.11 Total Annual Fund Operating Expenses A.3.instructions.3.e).", "label": "Fee Waiver or Reimbursement over Assets, Date of Termination", "terseLabel": "Fee Waiver or Reimbursement over Assets, Date of Termination" } } }, "localname": "FeeWaiverOrReimbursementOverAssetsDateOfTermination", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_HighestQuarterlyReturnLabel": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.", "label": "Highest Quarterly Return, Label", "terseLabel": "Highest Quarterly Return, Label" } } }, "localname": "HighestQuarterlyReturnLabel", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_IndexNoDeductionForFeesExpensesTaxes": { "auth_ref": [ "r60" ], "lang": { "en-us": { "role": { "documentation": "The Performance Table includes a parenthetical, indicating that the Index \"(reflects no deduction for fees, expenses or taxes)\". This tag is used when this is reflected in a footnote.", "label": "Index No Deduction for Fees, Expenses, Taxes [Text]", "terseLabel": "Index No Deduction for Fees, Expenses, Taxes [Text]" } } }, "localname": "IndexNoDeductionForFeesExpensesTaxes", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_LowestQuarterlyReturnLabel": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.", "label": "Lowest Quarterly Return, Label", "terseLabel": "Lowest Quarterly Return, Label" } } }, "localname": "LowestQuarterlyReturnLabel", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ManagementFeesOverAssets": { "auth_ref": [ "r20" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": 0.0, "parentTag": "rr_ExpensesOverAssets", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "Management Fees include investment advisory fees (including any fees based on the Fund's performance), any other management fees payable to the investment adviser or its affiliates, and administrative fees payable to the investment adviser or its affiliates that are not included as \"Other Expenses.\"", "label": "Management fees", "terseLabel": "Management Fees (as a percentage of Assets)" } } }, "localname": "ManagementFeesOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264" ], "xbrltype": "NonNegativePure4Type" }, "rr_MaximumAccountFee": { "auth_ref": [ "r12" ], "lang": { "en-us": { "role": { "documentation": "Include the caption \"Maximum Account Fees\" only if the Fund charges these fees. A Fund may omit other captions if the Fund does not charge the fees or expenses covered by the captions. Disclose account fees that may be charged to a typical investor in the Fund; fees that apply to only a limited number of shareholders based on their particular circumstances need not be disclosed. Include a caption describing the maximum account fee (e.g., \"Maximum Account Maintenance Fee\" or \"Maximum Cash Management Fee\"). State the maximum annual account fee as either a fixed dollar amount or a percentage of assets. Include in a parenthetical to the caption the basis on which any percentage is calculated. If an account fee is charged only to accounts that do not meet a certain threshold (e.g., accounts under $5)", "label": "Maximum Account Fee", "terseLabel": "Maximum Account Fee" } } }, "localname": "MaximumAccountFee", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_MaximumAccountFeeOverAssets": { "auth_ref": [ "r41" ], "lang": { "en-us": { "role": { "documentation": "Include the caption \"Maximum Account Fees\" only if the Fund charges these fees. A Fund may omit other captions if the Fund does not charge the fees or expenses covered by the captions. Disclose account fees that may be charged to a typical investor in the Fund; fees that apply to only a limited number of shareholders based on their particular circumstances need not be disclosed. Include a caption describing the maximum account fee (e.g., \"Maximum Account Maintenance Fee\" or \"Maximum Cash Management Fee\"). State the maximum annual account fee as either a fixed dollar amount or a percentage of assets. Include in a parenthetical to the caption the basis on which any percentage is calculated. If an account fee is charged only to accounts that do not meet a certain threshold (e.g., accounts under $5)", "label": "Maximum Account Fee (as a percentage of Assets)", "terseLabel": "Maximum Account Fee (as a percentage of Assets)" } } }, "localname": "MaximumAccountFeeOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_MaximumCumulativeSalesChargeOverOfferingPrice": { "auth_ref": [ "r35" ], "lang": { "en-us": { "role": { "documentation": "Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price). If a sales charge (load) is imposed on shares purchased with reinvested capital gains distributions or returns of capital, include the bracketed words in the third caption.", "label": "Maximum Cumulative Sales Charge (as a percentage of Offering Price)", "terseLabel": "Maximum Cumulative Sales Charge (as a percentage of Offering Price)" } } }, "localname": "MaximumCumulativeSalesChargeOverOfferingPrice", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_MaximumCumulativeSalesChargeOverOther": { "auth_ref": [ "r35" ], "lang": { "en-us": { "role": { "documentation": "Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price). If a sales charge (load) is imposed on shares purchased with reinvested capital gains distributions or returns of capital, include the bracketed words in the third caption.", "label": "Maximum Cumulative Sales Charge (as a percentage)", "terseLabel": "Maximum Cumulative Sales Charge (as a percentage)" } } }, "localname": "MaximumCumulativeSalesChargeOverOther", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_MaximumDeferredSalesChargeOverOfferingPrice": { "auth_ref": [ "r16" ], "lang": { "en-us": { "role": { "documentation": "Maximum Deferred Sales Charge (Load) (as a percentage of ____) A.3.instructions.2.a.i \"Maximum Deferred Sales Charge (Load)\" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). A.3.instructions.2.a.ii If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read \"Maximum Sales Charge (Load)\" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.", "label": "Maximum Deferred Sales Charge (as a percentage of Offering Price)", "terseLabel": "Maximum Deferred Sales Charge (as a percentage of Offering Price)" } } }, "localname": "MaximumDeferredSalesChargeOverOfferingPrice", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_MaximumDeferredSalesChargeOverOther": { "auth_ref": [ "r16" ], "lang": { "en-us": { "role": { "documentation": "Maximum Deferred Sales Charge (Load) (as a percentage of ____) \"Maximum Deferred Sales Charge (Load)\" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read \"Maximum Sales Charge (Load)\" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.", "label": "Maximum contingent deferred sales charge (as a % of the lower of original purchase price or current market value)", "terseLabel": "Maximum Deferred Sales Charge (as a percentage)" } } }, "localname": "MaximumDeferredSalesChargeOverOther", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152" ], "xbrltype": "NonNegativePure4Type" }, "rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice": { "auth_ref": [ "r35" ], "lang": { "en-us": { "role": { "documentation": "Maximum Deferred Sales Charge (Load) (as a percentage of ____) A.3.instructions.2.a.i \"Maximum Deferred Sales Charge (Load)\" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). A.3.instructions.2.a.ii If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read \"Maximum Sales Charge (Load)\" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.", "label": "Maximum initial sales charge on purchases (as a % of offering price)", "terseLabel": "Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)" } } }, "localname": "MaximumSalesChargeImposedOnPurchasesOverOfferingPrice", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152" ], "xbrltype": "NonNegativePure4Type" }, "rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther": { "auth_ref": [ "r38" ], "lang": { "en-us": { "role": { "documentation": "Maximum Sales Charge (Load) Imposed on Reinvested Dividends[and other Distributions] (as a percentage of ____)", "label": "Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage)", "terseLabel": "Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage)" } } }, "localname": "MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonNegativePure4Type" }, "rr_MoneyMarketSevenDayTaxEquivalentYield": { "auth_ref": [ "r63" ], "lang": { "en-us": { "role": { "documentation": "Calculate a Money Market Fund's 7-day yield under Item 21(a); the Fund's average annual total return under Item 21(b)(1); and the Fund's average annual total return (after taxes on distributions) and average annual total return (after taxes on distributions and redemption) under Items 21(b)(2) and (3), respectively.", "label": "Money Market Seven Day Tax Equivalent Yield", "terseLabel": "Money Market Seven Day Tax Equivalent Yield" } } }, "localname": "MoneyMarketSevenDayTaxEquivalentYield", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "pureItemType" }, "rr_MoneyMarketSevenDayYield": { "auth_ref": [ "r63" ], "lang": { "en-us": { "role": { "documentation": "Calculate a Money Market Fund's 7-day yield under Item 21(a); the Fund's average annual total return under Item 21(b)(1); and the Fund's average annual total return (after taxes on distributions) and average annual total return (after taxes on distributions and redemption) under Items 21(b)(2) and (3), respectively.", "label": "Money Market Seven Day Yield", "terseLabel": "Money Market Seven Day Yield" } } }, "localname": "MoneyMarketSevenDayYield", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "pureItemType" }, "rr_MoneyMarketSevenDayYieldCaption": { "auth_ref": [ "r63" ], "lang": { "en-us": { "role": { "documentation": "Calculate a Money Market Fund's 7-day yield under Item 21(a); the Fund's average annual total return under Item 21(b)(1); and the Fund's average annual total return (after taxes on distributions) and average annual total return (after taxes on distributions and redemption) under Items 21(b)(2) and (3), respectively.", "label": "Money Market Seven Day Yield, Caption [Text]", "terseLabel": "Money Market Seven Day Yield, Caption [Text]" } } }, "localname": "MoneyMarketSevenDayYieldCaption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_MoneyMarketSevenDayYieldColumnName": { "auth_ref": [ "r63" ], "lang": { "en-us": { "role": { "documentation": "Calculate a Money Market Fund's 7-day yield under Item 21(a); the Fund's average annual total return under Item 21(b)(1); and the Fund's average annual total return (after taxes on distributions) and average annual total return (after taxes on distributions and redemption) under Items 21(b)(2) and (3), respectively.", "label": "Money Market Seven Day Yield Column [Text]", "terseLabel": "Money Market Seven Day Yield Column [Text]" } } }, "localname": "MoneyMarketSevenDayYieldColumnName", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_MoneyMarketSevenDayYieldPhone": { "auth_ref": [ "r65" ], "lang": { "en-us": { "role": { "documentation": "A Fund (other than a Money Market Fund) may include the Fund's yield calculated under Item 21(b)(2). Any Fund may include its tax-equivalent yield calculated under Item 21. If a Fund's yield is included, provide a toll-free (or collect) telephone number that investors can use to obtain current yield information.", "label": "Money Market Seven Day Yield Phone", "terseLabel": "Money Market Seven Day Yield Phone" } } }, "localname": "MoneyMarketSevenDayYieldPhone", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_NetExpensesOverAssets": { "auth_ref": [ "r37" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": null, "parentTag": null, "root": true, "weight": null } }, "lang": { "en-us": { "role": { "documentation": "Total Annual Fund Operating Expenses.", "label": "Total annual operating expenses after fee waiver and/or expense reimbursement", "terseLabel": "Net Expenses (as a percentage of Assets)" } } }, "localname": "NetExpensesOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264" ], "xbrltype": "NonNegativePure4Type" }, "rr_ObjectiveHeading": { "auth_ref": [ "r5" ], "lang": { "en-us": { "role": { "documentation": "Investment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).", "label": "Objective [Heading]", "terseLabel": "Objective [Heading]" } } }, "localname": "ObjectiveHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ObjectivePrimaryTextBlock": { "auth_ref": [ "r5" ], "lang": { "en-us": { "role": { "documentation": "Investment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).", "label": "Objective, Primary [Text Block]", "terseLabel": "Objective, Primary [Text Block]" } } }, "localname": "ObjectivePrimaryTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ObjectiveSecondaryTextBlock": { "auth_ref": [ "r5" ], "lang": { "en-us": { "role": { "documentation": "Investment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).", "label": "Objective, Secondary [Text Block]", "terseLabel": "Objective, Secondary [Text Block]" } } }, "localname": "ObjectiveSecondaryTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_OperatingExpensesAbstract": { "auth_ref": [], "localname": "OperatingExpensesAbstract", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264" ], "xbrltype": "stringItemType" }, "rr_OperatingExpensesCaption": { "auth_ref": [ "r42" ], "lang": { "en-us": { "role": { "documentation": "Annual Fund Operating Expenses (ongoing expenses that you pay each year as a percentage of the value of your investment)", "label": "Operating Expenses Caption [Text]", "terseLabel": "Operating Expenses Caption [Text]" } } }, "localname": "OperatingExpensesCaption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_OperatingExpensesColumnName": { "auth_ref": [ "r42" ], "lang": { "en-us": { "role": { "documentation": "Annual Fund Operating Expenses (ongoing expenses that you pay each year as a percentage of the value of your investment)", "label": "Operating Expenses Column [Text]", "terseLabel": "Operating Expenses Column [Text]" } } }, "localname": "OperatingExpensesColumnName", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_OtherExpensesNewFundBasedOnEstimates": { "auth_ref": [ "r33" ], "lang": { "en-us": { "role": { "documentation": "This element represents the disclosure for new funds that \"Other Expenses\" are based on estimated amounts for the current fiscal year.", "label": "Other Expenses, New Fund, Based on Estimates [Text]", "terseLabel": "Other Expenses, New Fund, Based on Estimates [Text]" } } }, "localname": "OtherExpensesNewFundBasedOnEstimates", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_OtherExpensesOverAssets": { "auth_ref": [ "r22" ], "calculation": { "http://xbrl.sec.gov/rr/role/OperatingExpensesData": { "order": 3.0, "parentTag": "rr_ExpensesOverAssets", "weight": 1.0 } }, "lang": { "en-us": { "role": { "documentation": "\"Other Expenses\" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). \"Other Expenses\" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's \"Other Expenses,\" disclose in a footnote to the table what \"Other Expenses\" would have been had the extraordinary expenses been included.", "label": "Other expenses", "terseLabel": "Other Expenses (as a percentage of Assets):" } } }, "localname": "OtherExpensesOverAssets", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264" ], "xbrltype": "NonNegativePure4Type" }, "rr_PerformanceAdditionalMarketIndex": { "auth_ref": [ "r55" ], "lang": { "en-us": { "role": { "documentation": "Include the bar chart and table required by paragraphs (b)(2)(ii) and (iii) of this section. Provide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.", "label": "Performance Additional Market Index [Text]", "terseLabel": "Performance Additional Market Index [Text]" } } }, "localname": "PerformanceAdditionalMarketIndex", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceAvailabilityPhone": { "auth_ref": [ "r55" ], "lang": { "en-us": { "role": { "documentation": "If applicable, include a statement explaining that updated performance information is available and providing a Web site address and/or toll-free (or collect) telephone number where the updated information may be obtained.", "label": "Performance Availability Phone [Text]", "terseLabel": "Performance Availability Phone [Text]" } } }, "localname": "PerformanceAvailabilityPhone", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceAvailabilityWebSiteAddress": { "auth_ref": [ "r55" ], "lang": { "en-us": { "role": { "documentation": "If applicable, include a statement explaining that updated performance information is available and providing a Website address and/or toll-free (or collect) telephone number where the updated information may be obtained.", "label": "Performance Availability Website Address [Text]", "terseLabel": "Performance Availability Website Address [Text]" } } }, "localname": "PerformanceAvailabilityWebSiteAddress", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceInformationIllustratesVariabilityOfReturns": { "auth_ref": [ "r55" ], "lang": { "en-us": { "role": { "documentation": "Include the bar chart and table required by paragraphs (b)(2)(ii) and (iii) of this section. Provide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.", "label": "Performance Information Illustrates Variability of Returns [Text]", "terseLabel": "Performance Information Illustrates Variability of Returns [Text]" } } }, "localname": "PerformanceInformationIllustratesVariabilityOfReturns", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceMeasureAxis": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The Performance Measure Axis has members that distinguish different returns according to whether they are Before Taxes (the default), After Taxes on Distributions, After Taxes on Distributions and Sales, or are a pre-tax measure of returns based on a broadly available market index.", "label": "Performance Measure [Axis]" } } }, "localname": "PerformanceMeasureAxis", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "stringItemType" }, "rr_PerformanceMeasureDomain": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "The default member of the Performance Measure axis. It represents any return that is measured before taxes." } } }, "localname": "PerformanceMeasureDomain", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267" ], "xbrltype": "domainItemType" }, "rr_PerformanceNarrativeTextBlock": { "auth_ref": [ "r54" ], "lang": { "en-us": { "role": { "documentation": "Risk/Return Bar Chart and Table.", "label": "Performance Narrative [Text Block]", "terseLabel": "Performance Narrative [Text Block]" } } }, "localname": "PerformanceNarrativeTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_PerformanceOneYearOrLess": { "auth_ref": [ "r55", "r62" ], "lang": { "en-us": { "role": { "documentation": "For a Fund that provides annual total returns for only one calendar year or for a Fund that does not include the bar chart because it does not have annual returns for a full calendar year, modify, as appropriate, the narrative explanation required by stating that the information gives some indication of the risks of an investment in the Fund by comparing the Fund's performance with a broad measure of market performance). Provide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.", "label": "Performance One Year or Less [Text]", "terseLabel": "Performance One Year or Less [Text]" } } }, "localname": "PerformanceOneYearOrLess", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformancePastDoesNotIndicateFuture": { "auth_ref": [ "r55" ], "lang": { "en-us": { "role": { "documentation": "Include the bar chart and table required by paragraphs (b)(2)(ii) and (iii) of this section. Provide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.", "label": "Performance Past Does Not Indicate Future [Text]", "terseLabel": "Performance Past Does Not Indicate Future [Text]" } } }, "localname": "PerformancePastDoesNotIndicateFuture", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceTableClosingTextBlock": { "auth_ref": [ "r57" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also should show the returns of an appropriate broad-based securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____)", "label": "Performance Table Closing [Text Block]", "terseLabel": "Performance Table Closing [Text Block]" } } }, "localname": "PerformanceTableClosingTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_PerformanceTableDoesReflectSalesLoads": { "auth_ref": [ "r57" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also should show the returns of an appropriate broad-based securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____)", "label": "Performance Table Does Reflect Sales Loads", "terseLabel": "Performance Table Does Reflect Sales Loads" } } }, "localname": "PerformanceTableDoesReflectSalesLoads", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceTableExplanationAfterTaxHigher": { "auth_ref": [ "r76" ], "lang": { "en-us": { "role": { "documentation": "If average annual total return (after taxes on distributions and redemption) is higher than average annual total return, the reason for this result may be explained.", "label": "Performance Table Explanation after Tax Higher", "terseLabel": "Performance Table Explanation after Tax Higher" } } }, "localname": "PerformanceTableExplanationAfterTaxHigher", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceTableFootnotesReasonPerformanceInformationForClassDifferentFromImmediatelyPrecedingPeriod": { "auth_ref": [ "r69" ], "lang": { "en-us": { "role": { "documentation": "This element represents disclosure when presented performance information for a class is different from the class selected for the most immediately preceding period (Form N-1A, Item 2., Instr. 3.(c).(ii).(D)).", "label": "Performance Table Footnotes, Reason Performance Information for Class Different from Immediately Preceding Period [Text]", "terseLabel": "Performance Table Footnotes, Reason Performance Information for Class Different from Immediately Preceding Period [Text]" } } }, "localname": "PerformanceTableFootnotesReasonPerformanceInformationForClassDifferentFromImmediatelyPrecedingPeriod", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceTableFootnotesTextBlock": { "auth_ref": [ "r57" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also should show the returns of an appropriate broad-based securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____)", "label": "Performance Table Footnotes", "terseLabel": "Performance Table Footnotes" } } }, "localname": "PerformanceTableFootnotesTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_PerformanceTableHeading": { "auth_ref": [ "r69" ], "lang": { "en-us": { "role": { "documentation": "This item represents Average Annual Total Returns. If a Multiple Class Fund offers a Class in the prospectus that converts into another Class after a stated period, compute average annual total returns in the table by using the returns of the other Class for the period after conversion.", "label": "Performance Table Heading", "terseLabel": "Performance Table Heading" } } }, "localname": "PerformanceTableHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceTableMarketIndexChanged": { "auth_ref": [ "r64" ], "lang": { "en-us": { "role": { "documentation": "If the Fund selects an index that is different from the index used in a table for the immediately preceding period, explain the reason(s) for the selection of a different index and provide information for both the newly selected and the former index.", "label": "Performance Table Market Index Changed", "terseLabel": "Performance Table Market Index Changed" } } }, "localname": "PerformanceTableMarketIndexChanged", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceTableNarrativeTextBlock": { "auth_ref": [ "r73" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also should show the returns of an appropriate broad-based securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____). For a Fund that provides annual total returns for only one calendar year or for a Fund that does not include the bar chart because it does not have annual returns for a full calendar year, modify, as appropriate, the narrative explanation required by paragraph (c)(2)(i) (e.g., by stating that the information gives some indication of the risks of an investment in the Fund by comparing the Fund's performance with a broad measure of market performance).", "label": "Performance Table Narrative", "terseLabel": "Performance Table Narrative" } } }, "localname": "PerformanceTableNarrativeTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_PerformanceTableNotRelevantToTaxDeferred": { "auth_ref": [ "r74" ], "lang": { "en-us": { "role": { "documentation": "Provide a brief explanation that the actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.", "label": "Performance Table Not Relevant to Tax Deferred", "terseLabel": "Performance Table Not Relevant to Tax Deferred" } } }, "localname": "PerformanceTableNotRelevantToTaxDeferred", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceTableOneClassOfAfterTaxShown": { "auth_ref": [ "r57", "r75" ], "lang": { "en-us": { "role": { "documentation": "Provide a brief explanation that if the Fund is a Multiple Class Fund that offers more than one Class in the prospectus, after-tax returns are shown for only one Class and after-tax returns for other Classes will vary.", "label": "Performance Table One Class of after Tax Shown [Text]", "terseLabel": "Performance Table One Class of after Tax Shown [Text]" } } }, "localname": "PerformanceTableOneClassOfAfterTaxShown", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PerformanceTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Contains a command for the SEC Viewer for the role corresponding to PerformanceTableData.", "label": "Performance [Table]" } } }, "localname": "PerformanceTableTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_PerformanceTableUsesHighestFederalRate": { "auth_ref": [ "r57" ], "lang": { "en-us": { "role": { "documentation": "Provide a brief explanation that after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.", "label": "Performance Table Uses Highest Federal Rate", "terseLabel": "Performance Table Uses Highest Federal Rate" } } }, "localname": "PerformanceTableUsesHighestFederalRate", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PortfolioTurnoverHeading": { "auth_ref": [ "r32" ], "lang": { "en-us": { "role": { "documentation": "Disclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.", "label": "Portfolio Turnover [Heading]", "terseLabel": "Portfolio Turnover [Heading]" } } }, "localname": "PortfolioTurnoverHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_PortfolioTurnoverRate": { "auth_ref": [ "r10" ], "lang": { "en-us": { "role": { "documentation": "This element represents the rate of portfolio turnover presented as a percentage (SEC Form N-1A 2006-09-14 A.3.example.3 Portfolio Turnover A.3.instructions.5 Portfolio Turnover).", "label": "Portfolio Turnover, Rate", "terseLabel": "Portfolio Turnover, Rate" } } }, "localname": "PortfolioTurnoverRate", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "pureItemType" }, "rr_PortfolioTurnoverTextBlock": { "auth_ref": [ "r10" ], "lang": { "en-us": { "role": { "documentation": "Disclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.", "label": "Portfolio Turnover [Text Block]", "terseLabel": "Portfolio Turnover [Text Block]" } } }, "localname": "PortfolioTurnoverTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ProspectusDate": { "auth_ref": [ "r3" ], "lang": { "en-us": { "role": { "documentation": "The date of the prospectus.", "label": "Prospectus Date" } } }, "localname": "ProspectusDate", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://xbrl.sec.gov/rr/role/RiskReturnDetailData" ], "xbrltype": "dateItemType" }, "rr_ProspectusShareClassAxis": { "auth_ref": [ "r1" ], "lang": { "en-us": { "role": { "documentation": "Prospectus Share Class Axis.", "label": "Share Class [Axis]" } } }, "localname": "ProspectusShareClassAxis", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "stringItemType" }, "rr_ProspectusTable": { "auth_ref": [ "r1" ], "lang": { "en-us": { "role": { "documentation": "Prospectus Table.", "label": "Prospectus:" } } }, "localname": "ProspectusTable", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "stringItemType" }, "rr_RedemptionFee": { "auth_ref": [ "r39" ], "lang": { "en-us": { "role": { "documentation": "\"Redemption Fee\" (as a percentage of amount redeemed, if applicable) If the Fund is an Exchange-Traded Fund and issues or redeems shares in creation units of not less than 25,000 shares each, exclude any fees charged for the purchase and redemption of the Fund's creation units. \"Redemption Fee\" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption.", "label": "Redemption Fee", "terseLabel": "Redemption Fee" } } }, "localname": "RedemptionFee", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonPositiveMonetaryType" }, "rr_RedemptionFeeOverRedemption": { "auth_ref": [ "r17" ], "lang": { "en-us": { "role": { "documentation": "\"Redemption Fee\" (as a percentage of amount redeemed, if applicable) If the Fund is an Exchange-Traded Fund and issues or redeems shares in creation units of not less than 25,000 shares each, exclude any fees charged for the purchase and redemption of the Fund's creation units. \"Redemption Fee\" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption.", "label": "Redemption Fee (as a percentage of Amount Redeemed)", "terseLabel": "Redemption Fee (as a percentage of Amount Redeemed)" } } }, "localname": "RedemptionFeeOverRedemption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "NonPositivePure4Type" }, "rr_Risk": { "auth_ref": [ "r45" ], "lang": { "en-us": { "role": { "documentation": "Narrative Risk Disclosure.", "label": "Risk [Text]", "terseLabel": "Risk [Text]" } } }, "localname": "Risk", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskCaption": { "auth_ref": [ "r45" ], "lang": { "en-us": { "role": { "documentation": "Narrative Risk Disclosure.", "label": "Risk Caption", "terseLabel": "Risk Caption" } } }, "localname": "RiskCaption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskClosingTextBlock": { "auth_ref": [ "r48" ], "lang": { "en-us": { "role": { "documentation": "(ii) (A) If the Fund is a Money Market Fund that is not a government Money Market Fund, as defined in \u00a7270.2a\u2013 7(a)(16) or a retail Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(25), include the following statement: You could lose money by investing in the Fund. Because the share price of the Fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them. The Fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund's liquidity falls below required minimums because of market conditions or other factors. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. (B) If the Fund is a Money Market Fund that is a government Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(16), or a retail Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(25), and that is subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter (or is not subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter pursuant to \u00a7 270.2a\u20137(c)(2)(iii) of this chapter, but has chosen to rely on the ability to impose liquidity fees and suspend redemptions consistent with the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii)), include the following statement: You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. The Fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund's liquidity falls below required minimums because of market conditions or other factors. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. (C) If the Fund is a Money Market Fund that is a government Money Market Fund, as defined in \u00a7 270.2a\u20137(a)(16), that is not subject to the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii) of this chapter pursuant to \u00a7 270.2a\u20137(c)(2)(iii) of this chapter, and that has not chosen to rely on the ability to impose liquidity fees and suspend redemptions consistent with the requirements of \u00a7\u00a7 270.2a\u20137(c)(2)(i) and/or (ii), include the following statement: You could lose money by investing in the Fund. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so. An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time. Instruction. If an affiliated person, promoter, or principal underwriter of the Fund, or an affiliated person of such a person, has contractually committed to provide financial support to the Fund, and the term of the agreement will extend for at least one year following the effective date of the Fund's registration statement, the statement specified in Item 4(b)(1)(ii)(A), Item 4(b)(1)(ii)(B), or Item 4(b)(1)(ii)(C) may omit the last sentence (\"The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.\"). For purposes of this Instruction, the term \"financial support\" includes any capital contribution, purchase of a security from the Fund in reliance on \u00a7 270.17a\u20139, purchase of any defaulted or devalued security at par, execution of letter of credit or letter of indemnity, capital support agreement (whether or not the Fund ultimately received support), performance guarantee, or any other similar action reasonably intended to increase or stabilize the value or liquidity of the fund's portfolio; however, the term \"financial support\" excludes any routine waiver of fees or reimbursement of fund expenses, routine inter-fund lending, routine inter-fund purchases of fund shares, or any action that would qualify as financial support as defined above, that the board of directors has otherwise determined not to be reasonably intended to increase or stabilize the value or liquidity of the fund's portfolio. (iii) If the Fund is advised by or sold through an insured depository institution, state that: An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance corporation or any other government agency. Instruction. A Money Market Fund that is advised by or sold through an insured depository institution should combine the disclosure required by Items 4(b)(1)(ii) and (iii) in a single statement.", "label": "Risk Closing [Text Block]", "terseLabel": "Risk Closing [Text Block]" } } }, "localname": "RiskClosingTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_RiskColumnName": { "auth_ref": [ "r45" ], "lang": { "en-us": { "role": { "documentation": "Narrative Risk Disclosure.", "label": "Risk Column [Text]", "terseLabel": "Risk Column [Text]" } } }, "localname": "RiskColumnName", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_RiskFootnotesTextBlock": { "auth_ref": [ "r45" ], "lang": { "en-us": { "role": { "documentation": "Narrative Risk Disclosure.", "label": "Risk Footnotes [Text Block]", "terseLabel": "Risk Footnotes [Text Block]" } } }, "localname": "RiskFootnotesTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_RiskHeading": { "auth_ref": [ "r45" ], "lang": { "en-us": { "role": { "documentation": "Narrative Risk Disclosure.", "label": "Risk [Heading]", "terseLabel": "Risk [Heading]" } } }, "localname": "RiskHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskLoseMoney": { "auth_ref": [ "r46", "r49", "r50", "r51" ], "lang": { "en-us": { "role": { "documentation": "Summarize the principal risks of investing in the Fund, including the risks to which the Fund's portfolio as a whole is subject and the circumstances reasonably likely to affect adversely the Fund's net asset value, yield, and total return. Unless the Fund is a Money Market Fund, disclose that loss of money is a risk of investing in the Fund. If the Fund is a Money Market Fund, include the following statement: \"You could lose money by investing in the Fund.\"", "label": "Risk Lose Money [Text]", "terseLabel": "Risk Lose Money [Text]" } } }, "localname": "RiskLoseMoney", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskMoneyMarketFundMayImposeFeesOrSuspendSales": { "auth_ref": [ "r49", "r50" ], "lang": { "en-us": { "role": { "documentation": "Include the statement \"The Fund may impose a fee upon sale of your shares or may temporarily suspend your ability to sell shares if the Fund's liquidity falls below required minimums because of market conditions or other factors.\"", "label": "Risk Money Market Fund May Impose Fees or Suspend Sales [Text]", "terseLabel": "Risk Money Market Fund May Impose Fees or Suspend Sales [Text]" } } }, "localname": "RiskMoneyMarketFundMayImposeFeesOrSuspendSales", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskMoneyMarketFundMayNotPreserveDollar": { "auth_ref": [ "r50", "r51" ], "lang": { "en-us": { "role": { "documentation": "Include the statement \"Although the Fund seeks to preserve the value of your investment at $1.00 per share, it cannot guarantee it will do so.\"", "label": "Risk Money Market Fund May Not Preserve Dollar [Text]", "terseLabel": "Risk Money Market Fund May Not Preserve Dollar [Text]" } } }, "localname": "RiskMoneyMarketFundMayNotPreserveDollar", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskMoneyMarketFundPriceFluctuates": { "auth_ref": [ "r49" ], "lang": { "en-us": { "role": { "documentation": "Include the statement \"Because the share price of the Fund will fluctuate, when you sell your shares they may be worth more or less than what you originally paid for them.\"", "label": "Risk Money Market Fund Price Fluctuates [Text]", "terseLabel": "Risk Money Market Fund Price Fluctuates [Text]" } } }, "localname": "RiskMoneyMarketFundPriceFluctuates", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskMoneyMarketFundSponsorMayNotProvideSupport": { "auth_ref": [ "r49", "r50", "r51" ], "lang": { "en-us": { "role": { "documentation": "Include the statement \"The Fund's sponsor has no legal obligation to provide financial support to the Fund, and you should not expect that the sponsor will provide financial support to the Fund at any time.\"", "label": "Risk Money Market Fund Sponsor May Not Provide Support [Text]", "terseLabel": "Risk Money Market Fund Sponsor May Not Provide Support [Text]" } } }, "localname": "RiskMoneyMarketFundSponsorMayNotProvideSupport", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskNarrativeTextBlock": { "auth_ref": [ "r47" ], "lang": { "en-us": { "role": { "documentation": "Narrative Risk Disclosure. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.", "label": "Risk Narrative [Text Block]", "terseLabel": "Risk Narrative [Text Block]" } } }, "localname": "RiskNarrativeTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_RiskNondiversifiedStatus": { "auth_ref": [ "r53" ], "lang": { "en-us": { "role": { "documentation": "If applicable, state that the Fund is non-diversified, describe the effect of non-diversification (e.g., disclose that, compared with other funds, the Fund may invest a greater percentage of its assets in a particular issuer), and summarize the risks of investing in a non-diversified fund.", "label": "Risk Nondiversified Status [Text]", "terseLabel": "Risk Nondiversified Status [Text]" } } }, "localname": "RiskNondiversifiedStatus", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskNotInsured": { "auth_ref": [ "r49", "r50", "r51" ], "lang": { "en-us": { "role": { "documentation": "Include the statement \"An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.\"", "label": "RIsk Not Insured [Text]", "terseLabel": "RIsk Not Insured [Text]" } } }, "localname": "RiskNotInsured", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskNotInsuredDepositoryInstitution": { "auth_ref": [ "r52" ], "lang": { "en-us": { "role": { "documentation": "If the Fund is advised by or sold through an insured depository institution, state that \"An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.\"", "label": "Risk Not Insured Depository Institution [Text]", "terseLabel": "Risk Not Insured Depository Institution [Text]" } } }, "localname": "RiskNotInsuredDepositoryInstitution", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskReturnAbstract": { "auth_ref": [], "lang": { "en-us": { "role": { "label": "Risk/Return:" } } }, "localname": "RiskReturnAbstract", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_RiskReturnHeading": { "auth_ref": [ "r4" ], "lang": { "en-us": { "role": { "documentation": "Risk/Return Summary Investment Objectives/Goals Include the following information, in plain English under rule 421(d) under the Securities Act, in the order and subject matter indicated", "label": "Risk/Return [Heading]", "terseLabel": "Risk/Return [Heading]" } } }, "localname": "RiskReturnHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ShareClassDomain": { "auth_ref": [ "r2" ], "lang": { "en-us": { "role": { "documentation": "All members of this domain must be elements with name starting with \"C\" and consisting of a 9-digit Fund share class CIK." } } }, "localname": "ShareClassDomain", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentAndEntityInformation", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20002", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20010", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20018", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20026", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20034", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20041", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20049", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20057", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20065", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20073", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20081", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20089", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20097", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20105", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20113", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20121", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20129", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20137", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20145", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20153", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20159", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20166", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20173", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20180", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20187", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20194", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20201", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20208", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20215", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20222", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20229", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20236", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20243", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20250", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20257", "http://www.nb.com/20211229/role/ScheduleAnnualFundOperatingExpenses20264", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20005", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20013", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20021", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20029", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20036", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20044", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20052", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20060", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20068", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20076", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20084", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20092", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20100", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20108", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20116", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20124", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20132", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20140", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20148", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20161", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20168", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20175", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20182", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20189", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20196", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20203", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20210", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20217", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20224", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20231", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20238", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20245", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20252", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20259", "http://www.nb.com/20211229/role/ScheduleAnnualTotalReturnsBarChart20266", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20006", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20014", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20022", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20030", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20037", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20045", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20053", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20061", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20069", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20077", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20085", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20093", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20101", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20109", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20117", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20125", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20133", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20141", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20149", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20162", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20169", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20176", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20183", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20190", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20197", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20204", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20211", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20218", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20225", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20232", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20239", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20246", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20253", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20260", "http://www.nb.com/20211229/role/ScheduleAverageAnnualReturnsTransposed20267", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20004", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20012", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20020", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20028", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20043", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20051", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20059", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20067", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20075", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20083", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20091", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20099", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20107", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20115", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20123", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20131", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20139", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20147", "http://www.nb.com/20211229/role/ScheduleExpenseExampleNoRedemptionTransposed20155", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20003", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20011", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20019", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20027", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20035", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20042", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20050", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20058", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20066", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20074", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20082", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20090", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20098", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20106", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20114", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20122", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20130", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20138", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20146", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20154", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20160", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20167", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20174", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20181", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20188", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20195", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20202", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20209", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20216", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20223", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20230", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20237", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20244", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20251", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20258", "http://www.nb.com/20211229/role/ScheduleExpenseExampleTransposed20265", "http://www.nb.com/20211229/role/ScheduleShareholderFees20001", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "domainItemType" }, "rr_ShareholderFeeOther": { "auth_ref": [ "r36" ], "lang": { "en-us": { "role": { "documentation": "Other Expenses", "label": "Shareholder Fees (fees paid directly from your investment)", "terseLabel": "Shareholder Fee, Other" } } }, "localname": "ShareholderFeeOther", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "NonNegativeMonetaryType" }, "rr_ShareholderFeesAbstract": { "auth_ref": [], "localname": "ShareholderFeesAbstract", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/ScheduleShareholderFees20001", "http://www.nb.com/20211229/role/ScheduleShareholderFees20009", "http://www.nb.com/20211229/role/ScheduleShareholderFees20017", "http://www.nb.com/20211229/role/ScheduleShareholderFees20025", "http://www.nb.com/20211229/role/ScheduleShareholderFees20033", "http://www.nb.com/20211229/role/ScheduleShareholderFees20040", "http://www.nb.com/20211229/role/ScheduleShareholderFees20048", "http://www.nb.com/20211229/role/ScheduleShareholderFees20056", "http://www.nb.com/20211229/role/ScheduleShareholderFees20064", "http://www.nb.com/20211229/role/ScheduleShareholderFees20072", "http://www.nb.com/20211229/role/ScheduleShareholderFees20080", "http://www.nb.com/20211229/role/ScheduleShareholderFees20088", "http://www.nb.com/20211229/role/ScheduleShareholderFees20096", "http://www.nb.com/20211229/role/ScheduleShareholderFees20104", "http://www.nb.com/20211229/role/ScheduleShareholderFees20112", "http://www.nb.com/20211229/role/ScheduleShareholderFees20120", "http://www.nb.com/20211229/role/ScheduleShareholderFees20128", "http://www.nb.com/20211229/role/ScheduleShareholderFees20136", "http://www.nb.com/20211229/role/ScheduleShareholderFees20144", "http://www.nb.com/20211229/role/ScheduleShareholderFees20152", "http://www.nb.com/20211229/role/ScheduleShareholderFees20158", "http://www.nb.com/20211229/role/ScheduleShareholderFees20165", "http://www.nb.com/20211229/role/ScheduleShareholderFees20172", "http://www.nb.com/20211229/role/ScheduleShareholderFees20179", "http://www.nb.com/20211229/role/ScheduleShareholderFees20186", "http://www.nb.com/20211229/role/ScheduleShareholderFees20193", "http://www.nb.com/20211229/role/ScheduleShareholderFees20200", "http://www.nb.com/20211229/role/ScheduleShareholderFees20207", "http://www.nb.com/20211229/role/ScheduleShareholderFees20214", "http://www.nb.com/20211229/role/ScheduleShareholderFees20221", "http://www.nb.com/20211229/role/ScheduleShareholderFees20228", "http://www.nb.com/20211229/role/ScheduleShareholderFees20235", "http://www.nb.com/20211229/role/ScheduleShareholderFees20242", "http://www.nb.com/20211229/role/ScheduleShareholderFees20249", "http://www.nb.com/20211229/role/ScheduleShareholderFees20256", "http://www.nb.com/20211229/role/ScheduleShareholderFees20263" ], "xbrltype": "stringItemType" }, "rr_ShareholderFeesCaption": { "auth_ref": [ "r34" ], "lang": { "en-us": { "role": { "documentation": "Shareholder Fees (fees paid directly from your investment).", "label": "Shareholder Fees Caption [Text]", "terseLabel": "Shareholder Fees Caption [Text]" } } }, "localname": "ShareholderFeesCaption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ShareholderFeesColumnName": { "auth_ref": [ "r34" ], "lang": { "en-us": { "role": { "documentation": "Shareholder Fees (fees paid directly from your investment).", "label": "Shareholder Fees Column [Text]", "terseLabel": "Shareholder Fees Column [Text]" } } }, "localname": "ShareholderFeesColumnName", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ShareholderFeesTableTextBlock": { "auth_ref": [], "lang": { "en-us": { "role": { "documentation": "Contains a command for the SEC Viewer for the role corresponding to ShareholderFeesData.", "label": "Shareholder Fees [Table]" } } }, "localname": "ShareholderFeesTableTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_StrategyHeading": { "auth_ref": [ "r44" ], "lang": { "en-us": { "role": { "documentation": "Principal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.", "label": "Strategy [Heading]", "terseLabel": "Strategy [Heading]" } } }, "localname": "StrategyHeading", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_StrategyNarrativeTextBlock": { "auth_ref": [ "r44" ], "lang": { "en-us": { "role": { "documentation": "Principal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.", "label": "Strategy Narrative [Text Block]", "terseLabel": "Strategy Narrative [Text Block]" } } }, "localname": "StrategyNarrativeTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_StrategyPortfolioConcentration": { "auth_ref": [ "r44" ], "lang": { "en-us": { "role": { "documentation": "Principal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.", "label": "Strategy Portfolio Concentration [Text]", "terseLabel": "Strategy Portfolio Concentration [Text]" } } }, "localname": "StrategyPortfolioConcentration", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_SupplementToProspectusTextBlock": { "auth_ref": [ "r0" ], "lang": { "en-us": { "role": { "documentation": "This element contains the text of a prospectus supplement (submission type 497) not already contained in an element containing amended text or other data from a previous submission.", "label": "Supplement to Prospectus [Text Block]", "terseLabel": "Supplement to Prospectus [Text Block]" } } }, "localname": "SupplementToProspectusTextBlock", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DocumentRiskReturnSummaryUnlabeledInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ThirtyDayTaxEquivalentYield": { "auth_ref": [ "r65" ], "lang": { "en-us": { "role": { "documentation": "A Fund (other than a Money Market Fund) may include the Fund's yield calculated under Item 21(b)(2). Any Fund may include its tax-equivalent yield calculated under Item 21. If a Fund's yield is included, provide a toll-free (or collect) telephone number that investors can use to obtain current yield information.", "label": "Thirty Day Tax Equivalent Yield", "terseLabel": "Thirty Day Tax Equivalent Yield" } } }, "localname": "ThirtyDayTaxEquivalentYield", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "pureItemType" }, "rr_ThirtyDayYield": { "auth_ref": [ "r65" ], "lang": { "en-us": { "role": { "documentation": "A Fund (other than a Money Market Fund) may include the Fund's yield calculated under Item 21(b)(2). Any Fund may include its tax-equivalent yield calculated under Item 21. If a Fund's yield is included, provide a toll-free (or collect) telephone number that investors can use to obtain current yield information.", "label": "Thirty Day Yield", "terseLabel": "Thirty Day Yield" } } }, "localname": "ThirtyDayYield", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "pureItemType" }, "rr_ThirtyDayYieldCaption": { "auth_ref": [ "r65" ], "lang": { "en-us": { "role": { "documentation": "A Fund (other than a Money Market Fund) may include the Fund's yield calculated under Item 21(b)(2). Any Fund may include its tax-equivalent yield calculated under Item 21. If a Fund's yield is included, provide a toll-free (or collect) telephone number that investors can use to obtain current yield information.", "label": "Thirty Day Yield Caption", "terseLabel": "Thirty Day Yield Caption" } } }, "localname": "ThirtyDayYieldCaption", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_ThirtyDayYieldColumnName": { "auth_ref": [ "r65" ], "lang": { "en-us": { "role": { "documentation": "A Fund (other than a Money Market Fund) may include the Fund's yield calculated under Item 21(b)(2). Any Fund may include its tax-equivalent yield calculated under Item 21. If a Fund's yield is included, provide a toll-free (or collect) telephone number that investors can use to obtain current yield information.", "label": "Thirty Day Yield Column [Text]", "terseLabel": "Thirty Day Yield Column [Text]" } } }, "localname": "ThirtyDayYieldColumnName", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "textBlockItemType" }, "rr_ThirtyDayYieldPhone": { "auth_ref": [ "r65" ], "lang": { "en-us": { "role": { "documentation": "A Fund (other than a Money Market Fund) may include the Fund's yield calculated under Item 21(b)(2). Any Fund may include its tax-equivalent yield calculated under Item 21. If a Fund's yield is included, provide a toll-free (or collect) telephone number that investors can use to obtain current yield information.", "label": "Thirty Day Yield Phone", "terseLabel": "Thirty Day Yield Phone" } } }, "localname": "ThirtyDayYieldPhone", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" }, "rr_YearToDateReturnLabel": { "auth_ref": [ "r56" ], "lang": { "en-us": { "role": { "documentation": "If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.", "label": "Year to Date Return, Label", "terseLabel": "Year to Date Return, Label" } } }, "localname": "YearToDateReturnLabel", "nsuri": "http://xbrl.sec.gov/rr/2021", "presentation": [ "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBHAXClassCSharesNBHCXInstitutionalClassSharesNBHIXNeubergerBermanEquityIncomeFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBNAXClassCSharesNBNCXInstitutionalClassSharesNILIXNeubergerBermanInternationalSelectFundClassAClassCInstitutional", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNBRAXClassCSharesNBRCXInstitutionalClassSharesNBRTXNeubergerBermanMidCapIntrinsicValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNCEAXClassCSharesNCECXInstitutionalClassSharesNCEIXNeubergerBermanGreaterChinaEquityFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNDGAXClassCSharesNDGCXInstitutionalClassSharesNDGIXNeubergerBermanDividendGrowthFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEMAXClassCSharesNEMCXInstitutionalClassSharesNEMIXNeubergerBermanEmergingMarketsEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNEQAXClassCSharesNEQCXInstitutionalClassSharesNEQIXNeubergerBermanUSEquityImpactFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNFAAXClassCSharesNFACXInstitutionalClassSharesNFALXNeubergerBermanFocusFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGDAXClassCSharesNGDCXInstitutionalClassSharesNGDLXNeubergerBermanGuardianFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNGRAXClassCSharesNGRCXInstitutionalClassSharesNGRIXNeubergerBermanGlobalRealEstateFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNINAXClassCSharesNINCXInstitutionalClassSharesNINLXNeubergerBermanIntrinsicValueFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIOAXClassCSharesNIOCXInstitutionalClassSharesNIOIXNeubergerBermanInternationalSmallCapFund", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNIQAXClassCSharesNIQCXInstitutionalClassNBIIXNeubergerBermanInternationalEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMGAXClassCSharesNMGCXInstitutionalClassSharesNBMLXNeubergerBermanMidCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNMUAXClassCSharesNMUCXInstitutionalClassSharesNMULXNeubergerBermanMultiCapOpportunitiesFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNPNAXClassCSharesNPNCXInstitutionalClassSharesNBPIXNeubergerBermanLargeCapValueFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNRAAXClassCSharesNRACXInstitutionalClassSharesNBSLXNeubergerBermanSustainableEquityFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNREAXClassCSharesNRECXInstitutionalClassSharesNBRIXNeubergerBermanRealEstateFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassASharesNSNAXClassCSharesNSNCXInstitutionalClassSharesNBSMXNeubergerBermanSmallCapGrowthFundClassAClassCInstitutionalClass", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNBHEXNeubergerBermanEquityIncomeFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNIQEXNeubergerBermanInternationalEquityFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNMUEXNeubergerBermanMultiCapOpportunitiesFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNPNEXNeubergerBermanLargeCapValueFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNREEXNeubergerBermanRealEstateFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassESharesNRGEXNeubergerBermanGenesisFundClassEShares", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBHRXNeubergerBermanEquityIncomeFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBNRXNeubergerBermanInternationalSelectFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNBRRXNeubergerBermanMidCapIntrinsicValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNEMRXNeubergerBermanEmergingMarketsEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNGDRXNeubergerBermanGuardianFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNMGRXNeubergerBermanMidCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNPNRXNeubergerBermanLargeCapValueFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRARXNeubergerBermanSustainableEquityFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNRERXNeubergerBermanRealEstateFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsClassR3SharesNSNRXNeubergerBermanSmallCapGrowthFundClassR3", "http://www.nb.com/20211229/role/DisclosureRiskReturnDetailDataElementsInstitutionalClassSharesNBGIXNeubergerBermanGenesisFundInstitutionalClass" ], "xbrltype": "stringItemType" } }, "unitCount": 2 } }, "std_ref": { "r0": { "Name": "Form", "Number": "N-1A", "Publisher": "SEC" }, "r1": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Publisher": "SEC" }, "r10": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subsection": "example" }, "r11": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "b", "Subsection": "instructions" }, "r12": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "c", "Subsection": "instructions" }, "r13": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "d", "Subsection": "instructions" }, "r14": { "Chapter": "A", "Clause": "i", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "d", "Subsection": "instructions" }, "r15": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "3", "Subsection": "instructions" }, "r16": { "Chapter": "A", "Clause": "i", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "3", "Subparagraph": "a", "Subsection": "instructions" }, "r17": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "3", "Subparagraph": "b", "Subsection": "instructions" }, "r18": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "3", "Subparagraph": "c", "Subsection": "instructions" }, "r19": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "3", "Subparagraph": "d", "Subsection": "instructions" }, "r2": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "1", "Subsection": "a" }, "r20": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subparagraph": "a", "Subsection": "instructions" }, "r21": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subparagraph": "b", "Subsection": "instructions" }, "r22": { "Chapter": "A", "Clause": "i", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subparagraph": "c", "Subsection": "instructions" }, "r23": { "Chapter": "A", "Clause": "ii", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subparagraph": "c", "Subsection": "instructions" }, "r24": { "Chapter": "A", "Clause": "iii", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subparagraph": "c", "Subsection": "instructions" }, "r25": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subparagraph": "d", "Subsection": "instructions" }, "r26": { "Chapter": "A", "Clause": "ii", "Exhibit": "B", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subparagraph": "d", "Subsection": "instructions" }, "r27": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subparagraph": "e", "Subsection": "instructions" }, "r28": { "Chapter": "A", "Clause": "vi", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subparagraph": "f", "Subsection": "instructions" }, "r29": { "Chapter": "A", "Clause": "vii", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "3", "Subparagraph": "f", "Subsection": "instructions" }, "r3": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "3", "Publisher": "SEC", "Section": "1", "Subsection": "a" }, "r30": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "4", "Publisher": "SEC", "Section": "3", "Subsection": "instructions" }, "r31": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "4", "Publisher": "SEC", "Section": "3", "Subparagraph": "f", "Subsection": "instructions" }, "r32": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "5", "Publisher": "SEC", "Section": "3", "Subsection": "instructions" }, "r33": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "6", "Publisher": "SEC", "Section": "3", "Subparagraph": "a", "Subsection": "instructions" }, "r34": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subsection": "table" }, "r35": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "1", "Subsection": "table" }, "r36": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "10", "Subsection": "table" }, "r37": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "11", "Subsection": "table" }, "r38": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "3", "Subsection": "table" }, "r39": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "4", "Subsection": "table" }, "r4": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Publisher": "SEC", "Section": "2" }, "r40": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "5", "Subsection": "table" }, "r41": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "6", "Subsection": "table" }, "r42": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "7", "Subsection": "table" }, "r43": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "9", "Subsection": "table" }, "r44": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Publisher": "SEC", "Section": "4", "Subsection": "a" }, "r45": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "4", "Subsection": "b" }, "r46": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "4", "Subparagraph": "i", "Subsection": "b" }, "r47": { "Chapter": "A", "Clause": "instruction", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "4", "Subparagraph": "i", "Subsection": "b" }, "r48": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "4", "Subparagraph": "ii", "Subsection": "b" }, "r49": { "Chapter": "A", "Clause": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "4", "Subparagraph": "ii", "Subsection": "b" }, "r5": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Publisher": "SEC", "Section": "2", "Subsection": "a" }, "r50": { "Chapter": "A", "Clause": "B", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "4", "Subparagraph": "ii", "Subsection": "b" }, "r51": { "Chapter": "A", "Clause": "C", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "4", "Subparagraph": "ii", "Subsection": "b" }, "r52": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "4", "Subparagraph": "iii", "Subsection": "b" }, "r53": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "4", "Subparagraph": "iv", "Subsection": "b" }, "r54": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subsection": "b" }, "r55": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "i", "Subsection": "b" }, "r56": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "ii", "Subsection": "b" }, "r57": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "iii", "Subsection": "b" }, "r58": { "Chapter": "A", "Clause": "1", "Exhibit": "1", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "iii", "Subsection": "b" }, "r59": { "Chapter": "A", "Clause": "1", "Exhibit": "2", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "iii", "Subsection": "b" }, "r6": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "1", "Subsection": "example" }, "r60": { "Chapter": "A", "Clause": "1", "Exhibit": "5", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "iii", "Subsection": "b" }, "r61": { "Chapter": "A", "Clause": "1", "Exhibit": "a", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r62": { "Chapter": "A", "Clause": "1", "Exhibit": "b", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r63": { "Chapter": "A", "Clause": "2", "Exhibit": "a", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r64": { "Chapter": "A", "Clause": "2", "Exhibit": "c", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r65": { "Chapter": "A", "Clause": "2", "Exhibit": "d", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r66": { "Chapter": "A", "Clause": "3", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r67": { "Chapter": "A", "Clause": "3", "Exhibit": "a", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r68": { "Chapter": "A", "Clause": "3", "Exhibit": "b", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r69": { "Chapter": "A", "Clause": "3", "Exhibit": "c", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r7": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "1", "Publisher": "SEC", "Section": "3", "Subparagraph": "2", "Subsection": "example" }, "r70": { "Chapter": "A", "Clause": "3", "Example": "ii", "Exhibit": "c", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Sentence": "D", "Subparagraph": "instructions", "Subsection": "b" }, "r71": { "Chapter": "A", "Clause": "4", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r72": { "Chapter": "A", "Clause": "5", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "instructions", "Subsection": "b" }, "r73": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "iv", "Subsection": "b" }, "r74": { "Chapter": "A", "Clause": "B", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "iv", "Subsection": "b" }, "r75": { "Chapter": "A", "Clause": "C", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "iv", "Subsection": "b" }, "r76": { "Chapter": "A", "Clause": "D", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "4", "Subparagraph": "iv", "Subsection": "b" }, "r77": { "Name": "Regulation 12B", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r78": { "Name": "Regulation S-T", "Number": "232", "Publisher": "SEC", "Section": "313" }, "r8": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "3", "Subparagraph": "1", "Subsection": "example" }, "r9": { "Chapter": "A", "Name": "Form", "Number": "N-1A", "Paragraph": "2", "Publisher": "SEC", "Section": "3", "Subparagraph": "6", "Subsection": "example" } }, "version": "2.1" }