<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:brfgf="http://www.blackrock.com/20260623"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:fnd="http://xbrl.sec.gov/fnd/2025"
  xmlns:iso4217="http://www.xbrl.org/2003/iso4217"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:oef="http://xbrl.sec.gov/oef/2025"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="cik0001097293-20260623.xsd" xlink:type="simple"/>
    <context id="D20250531_20250531_S000002344Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_ConvertibleSecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:ConvertibleSecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_DepositaryReceiptsRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:DepositaryReceiptsRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_EquitySecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:EquitySecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_FocusRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:FocusRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_ForeignSecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:ForeignSecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_InformationTechnologySectorRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:InformationTechnologySectorRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_InvestmentStyleRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:InvestmentStyleRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_LargeCapitalizationCompaniesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:LargeCapitalizationCompaniesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_MarketRiskAndSelectionRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:MarketRiskAndSelectionRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_MidCapSecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:MidCapSecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_OperationalAndTechnologyRisksMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:OperationalAndTechnologyRisksMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_PreferredSecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:PreferredSecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_RiskLoseMoneyMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">oef:RiskLoseMoneyMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_RiskNotInsuredDepositoryInstitutionMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">oef:RiskNotInsuredDepositoryInstitutionMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_RiskOfInvestingInTheUnitedStatesMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:RiskOfInvestingInTheUnitedStatesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_ClassKMember_SectorRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:SectorRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006153Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006154Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_ConvertibleSecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:ConvertibleSecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_DepositaryReceiptsRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:DepositaryReceiptsRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_EquitySecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:EquitySecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_FocusRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:FocusRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_ForeignSecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:ForeignSecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_InformationTechnologySectorRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:InformationTechnologySectorRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_InvestmentStyleRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:InvestmentStyleRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_LargeCapitalizationCompaniesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:LargeCapitalizationCompaniesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_MarketRiskAndSelectionRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:MarketRiskAndSelectionRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_MidCapSecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:MidCapSecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_OperationalAndTechnologyRisksMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:OperationalAndTechnologyRisksMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_PreferredSecuritiesRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:PreferredSecuritiesRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_RiskLoseMoneyMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">oef:RiskLoseMoneyMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_RiskNotInsuredDepositoryInstitutionMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">oef:RiskNotInsuredDepositoryInstitutionMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_RiskOfInvestingInTheUnitedStatesMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:RiskOfInvestingInTheUnitedStatesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_SectorRiskMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:RiskAxis">brfgf:SectorRiskMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="DefaultContext">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
        </entity>
        <period>
            <startDate>2025-05-31</startDate>
            <endDate>2025-05-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_C000006151Member_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsAndSalesMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsAndSalesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_C000006153Member_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006153Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_C000006154Member_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006154Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsAndSalesMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsAndSalesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_Russell1000GrowthIndexMember_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000GrowthIndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_Russell1000GrowthIndexMember_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000GrowthIndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_Russell1000IndexMember_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000IndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FiveY2024_Russell1000IndexMember_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000IndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2015_S000002344Member_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2015-12-31</endDate>
        </period>
    </context>
    <context id="FY2015_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2015-12-31</endDate>
        </period>
    </context>
    <context id="FY2016_S000002344Member_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2016-01-01</startDate>
            <endDate>2016-12-31</endDate>
        </period>
    </context>
    <context id="FY2016_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2016-01-01</startDate>
            <endDate>2016-12-31</endDate>
        </period>
    </context>
    <context id="FY2017_S000002344Member_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2017-01-01</startDate>
            <endDate>2017-12-31</endDate>
        </period>
    </context>
    <context id="FY2017_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2017-01-01</startDate>
            <endDate>2017-12-31</endDate>
        </period>
    </context>
    <context id="FY2018_S000002344Member_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2018-01-01</startDate>
            <endDate>2018-12-31</endDate>
        </period>
    </context>
    <context id="FY2018_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2018-01-01</startDate>
            <endDate>2018-12-31</endDate>
        </period>
    </context>
    <context id="FY2019_S000002344Member_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2019-01-01</startDate>
            <endDate>2019-12-31</endDate>
        </period>
    </context>
    <context id="FY2019_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2019-01-01</startDate>
            <endDate>2019-12-31</endDate>
        </period>
    </context>
    <context id="FY2020_S000002344Member_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-12-31</endDate>
        </period>
    </context>
    <context id="FY2020_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2020-01-01</startDate>
            <endDate>2020-12-31</endDate>
        </period>
    </context>
    <context id="FY2021_S000002344Member_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-12-31</endDate>
        </period>
    </context>
    <context id="FY2021_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2021-01-01</startDate>
            <endDate>2021-12-31</endDate>
        </period>
    </context>
    <context id="FY2022_S000002344Member_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2022-01-01</startDate>
            <endDate>2022-12-31</endDate>
        </period>
    </context>
    <context id="FY2022_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2022-01-01</startDate>
            <endDate>2022-12-31</endDate>
        </period>
    </context>
    <context id="FY2023_S000002344Member_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2023-01-01</startDate>
            <endDate>2023-12-31</endDate>
        </period>
    </context>
    <context id="FY2023_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2023-01-01</startDate>
            <endDate>2023-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_C000006151Member_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsAndSalesMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsAndSalesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_C000006153Member_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006153Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_C000006154Member_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006154Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsAndSalesMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsAndSalesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_Russell1000GrowthIndexMember_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000GrowthIndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_Russell1000GrowthIndexMember_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000GrowthIndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_Russell1000IndexMember_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000IndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_Russell1000IndexMember_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000IndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_S000002344Member_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="FY2024_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="dei:LegalEntityAxis">brfgf:S000002344Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2024-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_C000006151Member_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsAndSalesMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsAndSalesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006151Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_C000006153Member_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006153Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_C000006154Member_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000006154Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_C000213874Member_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsAndSalesMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsAndSalesMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:ClassAxis">brfgf:C000213874Member</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">oef:AfterTaxesOnDistributionsMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_Russell1000GrowthIndexMember_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000GrowthIndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_Russell1000GrowthIndexMember_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000GrowthIndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_Russell1000IndexMember_ClassKMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:ClassKMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000IndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <context id="TenY2024_Russell1000IndexMember_InvestorACAndInstitutionalMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001097293</identifier>
            <segment>
                <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">brfgf:InvestorACAndInstitutionalMember</xbrldi:explicitMember>
                <xbrldi:explicitMember dimension="oef:PerformanceMeasureAxis">brfgf:Russell1000IndexMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2015-01-01</startDate>
            <endDate>2024-12-31</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <dei:EntityCentralIndexKey
      contextRef="DefaultContext"
      id="h1_0391a8e7_644e_48f3_acfe_4f30681eab11">0001097293</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="DefaultContext"
      id="h3_044de4e3_adc8_431b_ade9_57f679d3fea0">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="DefaultContext"
      id="h7_c4618ac8_67c1_4a55_8533_bd0a8cdf06c9">497</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="DefaultContext"
      id="h8_bd54f02a_391a_4a47_88e2_2d1bc0325d2d">2025-05-31</dei:DocumentPeriodEndDate>
    <dei:EntityInvCompanyType
      contextRef="DefaultContext"
      id="h_1_fa383ee1-e280-6efb-710f-9844e0f953e4">N-1A</dei:EntityInvCompanyType>
    <oef:AnnlRtrPct
      contextRef="FY2015_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_1_aff06535-aabf-a3a9-be08-3e34f324f84e"
      unitRef="pure">0.0980</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2024_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_10_8bb12648-3e46-8b54-1180-f9659320a311"
      unitRef="pure">0.3053</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2016_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_2_ea75e830-492d-3d9a-7d7b-a9db9cde6843"
      unitRef="pure">0.0033</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2017_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_3_617654bc-e0a4-c62d-dbe1-fa9c6d4f4ffe"
      unitRef="pure">0.3027</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2018_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_4_5c4edb76-7eb2-6c9e-e336-780468a36213"
      unitRef="pure">0.0309</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2019_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_5_a617dfed-867a-4828-6057-5573f698b3b8"
      unitRef="pure">0.3087</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2020_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_6_4e2f1ff6-e395-edcf-3b89-48489edee43f"
      unitRef="pure">0.4644</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2021_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_7_1ea3c4d5-f4db-4208-fdc7-bb3d72d40257"
      unitRef="pure">0.1668</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2022_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_8_65900b21-a8e1-e850-4730-88903d074a8a"
      unitRef="pure">-0.3825</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2023_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_9_ee4d9699-4a75-fc02-7101-a2b778381e32"
      unitRef="pure">0.5266</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2015_S000002344Member_C000213874Member_ClassKMember"
      decimals="4"
      id="h_1_2978f5af-4e77-59e5-ca2d-13934dc73009"
      unitRef="pure">0.1042</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2024_S000002344Member_C000213874Member_ClassKMember"
      decimals="4"
      id="h_10_275d8971-0555-079a-807d-747e4968f8f9"
      unitRef="pure">0.3106</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2016_S000002344Member_C000213874Member_ClassKMember"
      decimals="4"
      id="h_2_da8c5444-3394-8709-b1e7-a03abe86dd7f"
      unitRef="pure">0.0062</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2017_S000002344Member_C000213874Member_ClassKMember"
      decimals="4"
      id="h_3_015d76de-368c-f3c5-0249-96031edfba16"
      unitRef="pure">0.2997</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2018_S000002344Member_C000213874Member_ClassKMember"
      decimals="4"
      id="h_4_efae0889-7d25-94aa-8792-f2e42e53b8e0"
      unitRef="pure">0.0361</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2019_S000002344Member_C000213874Member_ClassKMember"
      decimals="4"
      id="h_5_5eef48fa-34ea-eeb3-a6ad-b0974b5d0a6d"
      unitRef="pure">0.3140</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2020_S000002344Member_C000213874Member_ClassKMember"
      decimals="4"
      id="h_6_6e32e40f-402c-9ef4-a0c9-d2cb4b97c4e7"
      unitRef="pure">0.4675</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2021_S000002344Member_C000213874Member_ClassKMember"
      decimals="4"
      id="h_7_cf2bb547-834a-17b1-2930-4c6b4fb8b803"
      unitRef="pure">0.1710</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2022_S000002344Member_C000213874Member_ClassKMember"
      decimals="4"
      id="h_8_0415ee89-46ee-a067-a707-d0d2822d7e52"
      unitRef="pure">-0.3801</oef:AnnlRtrPct>
    <oef:AnnlRtrPct
      contextRef="FY2023_S000002344Member_C000213874Member_ClassKMember"
      decimals="4"
      id="h_9_fa72ab63-7afa-c0c5-791a-e93c0d194fb7"
      unitRef="pure">0.5280</oef:AnnlRtrPct>
    <oef:ProspectusDate
      contextRef="DefaultContext"
      id="t_5_56fa5dcd_62d1_09dc_40f6_ccd522dbf5b8">2025-09-26</oef:ProspectusDate>
    <dei:EntityRegistrantName
      contextRef="DefaultContext"
      id="t_4_fb899837_1c1d_bec1_a7bb_606c66503df7">BlackRock Large Cap Focus Growth Fund, Inc.</dei:EntityRegistrantName>
    <oef:RiskReturnHeading
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_48_0497e53f_ade6_6fd5_5211_09ed889fbc2f">Fund Overview Key Facts About BlackRock Large Cap Focus Growth Fund, Inc. </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_49_de7d563f_502e_0303_f82a_b662af5f68f8">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_3_ecf1204c_a29c_4c6b_aae3_1490b00ad0c3"> &lt;div style="margin-top: 6pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The investment objective of the BlackRock Large Cap Focus Growth Fund, Inc. (the &#x201c;Fund&#x201d;) is long-term capital &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;appreciation.&lt;/span&gt;&lt;/div&gt; </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_50_6ee63060_368b_9c1d_260a_aa96b6a1497d">Fees and Expenses of the Fund</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_5_4d4c4e33_0ea5_4d9e_9df0_0156f51d2acd"> &lt;div style="margin-top: 6pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;You may pay &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;other fees, such as brokerage commissions and other fees to your financial professional or your selected securities &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;dealer, broker, investment adviser, service provider or industry professional (including BlackRock Advisors, LLC &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;(&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;BlackRock&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;) and its affiliates) (each, a &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;Financial Intermediary&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;), which are not reflected in the table and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;example below.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; You may qualify for sales charge discounts if you and your family invest, or agree to invest in the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;future, at least $25,000 in the fund complex advised by BlackRock or its affiliates. More information about these and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;other discounts is available from your Financial Intermediary and in the &#x201c;Details About the Share Classes&#x201d; and the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201c;Intermediary-Defined Sales Charge Waiver Policies&#x201d; sections on pages &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;25&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;A-1&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;, respectively, of the Fund&#x2019;s &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;prospectus and in the &#x201c;Purchase of Shares&#x201d; section on page &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;II-97&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; of Part II of the Fund&#x2019;s Statement of Additional &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Information.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 1pt; line-height: 0.93pt;"&gt;&#x2003;&lt;/span&gt;&lt;/div&gt; </oef:ExpenseNarrativeTextBlock>
    <oef:ExpenseBreakpointDiscounts
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_61_4c1a73a2_873e_e10a_c9ab_7f90ff9690f9">You may qualify for sales charge discounts if you and your family invest, or agree to invest in thefuture, at least $25,000 in the fund complex advised by BlackRock or its affiliates.</oef:ExpenseBreakpointDiscounts>
    <oef:ExpenseBreakpointMinimumInvestmentRequiredAmount
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      decimals="INF"
      id="h_1_39d59b6d_7cb8_485e_9768_386dc19b2a1f"
      unitRef="USD">25000</oef:ExpenseBreakpointMinimumInvestmentRequiredAmount>
    <oef:ShareholderFeesCaption
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_6_2967e719_8854_4496_8bc0_6446cbca90c9">  Shareholder Fees  (fees paid directly from your investment)  </oef:ShareholderFeesCaption>
    <oef:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_2_163a30e9_6fe0_44c9_864b_2e55f86dd04b"
      unitRef="pure">0.0525</oef:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
    <oef:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="4"
      id="h_3_94dab1ca_9782_4799_863c_9a68abe838ed"
      unitRef="pure">0</oef:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
    <oef:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="4"
      id="h_4_5f6a924b_eb6e_48e6_a980_4a10f22f76bb"
      unitRef="pure">0</oef:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOfferingPrice
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_5_61b94022_402f_402b_9b02_9a2d61eed1f4"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOfferingPrice
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="4"
      id="h_7_8b846379_1f5b_49f5_bb44_acd68972e032"
      unitRef="pure">0.0100</oef:MaximumDeferredSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOfferingPrice
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="4"
      id="h_9_e7cc9d5f_86b4_4a65_9dcc_084be8893528"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOfferingPrice>
    <oef:OperatingExpensesCaption
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_7_f4b96da2_1e9a_4df4_9a9a_090fd242ac63">  Annual Fund Operating Expenses  (expenses that you pay each year as a  percentage of the value of your investment)  </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_10_f238aecc_1a2b_43d1_9e1e_4e127c9c42d7"
      unitRef="pure">0.0050</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="4"
      id="h_11_1451018d_ff4b_47e7_8c2f_e6472043b773"
      unitRef="pure">0.0050</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="4"
      id="h_12_afb3fd04_78c7_4a35_b042_e42562b2029c"
      unitRef="pure">0.0050</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_13_c8ab15d3_bb5d_455f_81f1_2810be28d71b"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="4"
      id="h_14_aa1fa5b5_b3b4_4aef_a6d6_8b06ee90e87f"
      unitRef="pure">0.0100</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="4"
      id="h_15_5392f4c0_7c85_42a7_9353_56ce37b13398"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_16_00f9e33f_8470_43dc_82e4_a468b1a180ca"
      unitRef="pure">0.0023</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="4"
      id="h_17_7db5f28e_ddf0_454a_9c4d_9f3045bc0c61"
      unitRef="pure">0.0026</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="4"
      id="h_18_6e1980a7_45c8_4477_8973_2ae836231027"
      unitRef="pure">0.0024</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_19_9c0d4f71_6dbf_47f2_9094_9bdd130428f4"
      unitRef="pure">0.0098</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="4"
      id="h_20_080d26dd_a3fb_471c_bc0c_51a6632d17c5"
      unitRef="pure">0.0176</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="4"
      id="h_21_f39e823f_9f92_4b6c_bb41_746a85ead82e"
      unitRef="pure">0.0074</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_22_68c961dd_7ca9_43c5_8684_8622e78ea70a"
      unitRef="pure">-0.0006</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="4"
      id="h_23_d05feec1_d46a_43ac_b454_f0b1e226d76e"
      unitRef="pure">-0.0009</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="4"
      id="h_24_082b6779_7963_480c_b6cf_1377da78a6d1"
      unitRef="pure">-0.0007</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_25_74c3fcfa_6645_4e7a_a871_23f0c7ae4de1"
      unitRef="pure">0.0092</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="4"
      id="h_26_ce954094_351e_4285_9ff6_aa5ec695943f"
      unitRef="pure">0.0167</oef:NetExpensesOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="4"
      id="h_27_4e4214e1_f8b2_4b76_8735_a55e4d4ce667"
      unitRef="pure">0.0067</oef:NetExpensesOverAssets>
    <oef:ExpensesDeferredChargesTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_85_b7798024_7ddd_e15d_c1cd_8f740ecc0a36">A contingent deferred sales charge (&#x201c;CDSC&#x201d;) of 1.00% is assessed on certain redemptions of Investor A Shares made within 18 months after purchase where no initial sales charge was paid at the time of purchase as part of an investment of $1,000,000 or more.</oef:ExpensesDeferredChargesTextBlock>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_84_f1cce140_6673_f783_1f87_43c25c6e6bfb">June 30, 2027</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleHeading
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_8_0c07ad44_1630_4c87_8764_654302a9b5f5"> Example: </oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_9_54a15431_e741_4eff_9278_9c17fb40dafc"> &lt;div style="line-height: 10.695pt; text-align: left;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;return each year and that the Fund&#x2019;s operating expenses remain the same. Although your actual costs may be higher &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;or lower, based on these assumptions your costs would be:&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 1pt; line-height: 0.93pt;"&gt;&#x2003;&lt;/span&gt;&lt;/div&gt; </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="INF"
      id="h_28_60607d2a_5f35_4207_97c7_5508fb043e15"
      unitRef="USD">614</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="INF"
      id="h_29_d1410b21_90db_4f42_912c_13615fc1dc30"
      unitRef="USD">815</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="INF"
      id="h_30_386bc7fe_5d5d_4d80_8cb7_6ad8efa95be3"
      unitRef="USD">1033</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="INF"
      id="h_31_597dc454_b470_4238_b20d_d360ab71b734"
      unitRef="USD">1658</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear01
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="INF"
      id="h_32_3f482adc_ea00_469d_9943_fa8877d716ae"
      unitRef="USD">270</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="INF"
      id="h_33_823f5b8e_de23_4cee_b86f_5d31181b296c"
      unitRef="USD">545</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="INF"
      id="h_34_f1f3eea7_f408_4ae8_93aa_9532feca2418"
      unitRef="USD">946</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="INF"
      id="h_35_c502bb31_d781_412c_8cfc_fc5df6bdc02f"
      unitRef="USD">1860</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear01
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="INF"
      id="h_36_0316715b_66a2_4afc_9d9d_c1ba1697b009"
      unitRef="USD">68</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="INF"
      id="h_37_6ded6a74_e844_4c44_8448_046d683d36df"
      unitRef="USD">230</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="INF"
      id="h_38_417c6eee_52a7_4db8_abe8_abd145a89daf"
      unitRef="USD">405</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006154Member"
      decimals="INF"
      id="h_39_11246105_6f08_416b_bb14_bae7a9275790"
      unitRef="USD">912</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionByYearCaption
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_51_e51d16e1_1706_f388_3c89_803b9748d4a5">You would pay the following expenses if you did not redeem your shares:</oef:ExpenseExampleNoRedemptionByYearCaption>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="INF"
      id="h_40_71d2cda8_155d_4e15_bf21_c1f167e4801e"
      unitRef="USD">170</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="INF"
      id="h_41_3b250c58_ac60_400b_92e9_81506a3ab6e7"
      unitRef="USD">545</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="INF"
      id="h_42_fd8f6ef6_9248_43b8_81e0_528a37c0a5fc"
      unitRef="USD">946</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006153Member"
      decimals="INF"
      id="h_43_ccab1c0e_ad49_40a5_bba1_e1f35629cc2d"
      unitRef="USD">1860</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_10_54c88eeb_29a7_4987_bb50_0735afdd9710">  Portfolio Turnover:  </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_11_ac325464_32fb_49f3_8682_cc3ab4110d20"> &lt;div style="line-height: 10.695pt; text-align: left;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; its &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Example, affect the Fund&#x2019;s performance. During the most recent fiscal year, the Fund&#x2019;s portfolio turnover rate was &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;31&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;% of the average value of its portfolio.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;/div&gt; </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_44_72e76b58_d7d6_420d_8c07_fb9b6bb3517f"
      unitRef="pure">0.31</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_94_47b7663a_b442_bb81_19db_bfe04fe110b5">Principal Investment Strategies of the Fund</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_95_5962fd65_7636_45cb_fd73_9897b0038782"> &lt;div style="margin-top: 6pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The Fund is an aggressive growth fund that generally invests in not less than 25 to not more than 60 companies that &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Fund management believes have strong earnings and revenue growth and capital appreciation potential (also known as &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;aggressive growth companies&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;). Under normal circumstances, the Fund seeks to invest at least 80% of its net assets &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;plus the amount of any borrowings for investment purposes in large cap growth equity securities and derivatives that &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;provide investment exposure to such securities or to one or more market risk factors associated with such securities. &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;For purposes of the Fund&#x2019;s 80% policy, large cap growth equity securities are equity securities that (i) at the time of &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;purchase have a market capitalization within the range of companies included in the Russell 1000&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 5pt; position: relative; top: -3.25pt;"&gt;&#xae;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; Growth Index (the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Russell 1000 Growth Index&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;) and (ii) are included within at least one growth index, as determined by BlackRock (the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Growth Indices&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;). Currently, such Growth Indices are the Russell 3000&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 5pt; position: relative; top: -3.25pt;"&gt;&#xae;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; Growth Index, the S&amp;amp;P Composite 1500&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 5pt; position: relative; top: -3.25pt;"&gt;&#xae;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Growth Index and the MSCI World Growth Index. The Russell 1000 Growth Index is a capitalization-weighted index from &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;a broad range of industries chosen for market size, liquidity and industry group representation. Equity securities &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;consist of common stock, preferred stock and other financial instruments that are components of, or have &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;characteristics similar to, the securities included in the Growth Indices, and American Depositary Receipts (&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;ADRs&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;) &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;which are receipts typically issued by an American bank or trust company that evidence underlying securities issued by &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;a foreign company. In addition to ADRs, the Fund may also invest up to 20% of its total assets in securities of foreign &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;companies. The Fund may also purchase convertible securities.&lt;/span&gt;&lt;/div&gt; </oef:StrategyNarrativeTextBlock>
    <fnd:NmRule35d1EightyPctInvstmntPlcyTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_96_1bb085cf_f6d6_3148_40da_2ea7f8fc5939">Under normal circumstances, the Fund seeks to invest at least 80% of its net assets plus the amount of any borrowings for investment purposes in large cap growth equity securities and derivatives that provide investment exposure to such securities or to one or more market risk factors associated with such securities. </fnd:NmRule35d1EightyPctInvstmntPlcyTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_RiskLoseMoneyMember"
      id="t_68_98284496_c0a4_7482_bc14_6e47ac3e1c04">You may lose part or all of yourinvestment in the Fund or your investment may not perform as well as other similar investments.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_RiskNotInsuredDepositoryInstitutionMember"
      id="t_69_d4bba671_fbea_aa88_2fb1_1b037c643e39">An investment in theFund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any otherGovernment agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_EquitySecuritiesRiskMember"
      id="t_70_2c46b839_3621_113e_97fb_ba124389f90b"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Equity Securities Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; Stock markets are volatile. The price of equity securities fluctuates based on changes in a &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;company&#x2019;s financial condition and overall market and economic conditions.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_FocusRiskMember"
      id="t_71_4b94327d_6b1a_9d17_7a24_385771bb7f4b"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Focus Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; Under normal circumstances, the Fund focuses its investments in the securities of a limited number &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;of issuers. This may subject the Fund to greater issuer-specific risk and potential losses than a fund that invests in &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;the securities of a greater number of issuers.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_InvestmentStyleRiskMember"
      id="t_72_6bcdbef6_3956_41d6_3e38_24ef1319272f"> &lt;div&gt; &lt;div style="clear: both; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Investment Style Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic;"&gt;&#x2014;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; Under certain market conditions, growth investments have performed better during the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;later stages of economic expansion. Therefore, this investment style may over time go in and out of favor. At times &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;when the investment style used by the Fund is out of favor, the Fund may underperform other equity funds that use &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;different investment styles.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_ConvertibleSecuritiesRiskMember"
      id="t_73_f786ea5b_5e69_8979_7cab_79cf8795143b"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Convertible Securities Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; The market value of a convertible security performs like that of a regular debt &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;security; that is, if market interest rates rise, the value of a convertible security usually falls. In addition, convertible &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;securities are subject to the risk that the issuer will not be able to pay interest, principal or dividends when due, and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;their market value may change based on changes in the issuer&#x2019;s credit rating or the market&#x2019;s perception of the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;issuer&#x2019;s creditworthiness. Since it derives a portion of its value from the common stock into which it may be &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;converted, a convertible security is also subject to the same types of market and issuer risks that apply to the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;underlying common stock, including the potential for increased volatility in the price of the convertible security.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_DepositaryReceiptsRiskMember"
      id="t_74_86ff18ea_ee00_e506_67f1_c4f782256b0b"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Depositary Receipts Risk&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; &#x2014; Depositary receipts are generally subject to the same risks as the foreign securities &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;that they evidence or into which they may be converted. In addition to investment risks associated with the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;underlying issuer, depositary receipts expose the Fund to additional risks associated with the non-uniform terms &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;that apply to depositary receipt programs, credit exposure to the depository bank and to the sponsors and other &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;parties with whom the depository bank establishes the programs, currency risk and the risk of an illiquid market for &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;depositary receipts. The issuers of unsponsored depositary receipts are not obligated to disclose information that &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;is, in the United States, considered material. Therefore, there may be less information available regarding these &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;issuers and there may not be a correlation between such information and the market value of the depositary &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;receipts. While depositary receipts provide an alternative to directly purchasing underlying foreign securities in their &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;respective markets and currencies, they continue to be subject to many of the risks associated with investing &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;directly in foreign securities, including political, economic, and currency risk.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_ForeignSecuritiesRiskMember"
      id="t_75_7dd9f880_ea68_5235_1bed_eeb9cf2626ba"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.0pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Foreign Securities Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; Foreign investments often involve special risks not present in U.S. investments that can &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;increase the chances that the Fund will lose money. These risks include:&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;  &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The Fund generally holds its foreign securities and cash in foreign banks and securities depositories, which may &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;be recently organized or new to the foreign custody business and may be subject to only limited or no regulatory &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;oversight.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;  &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Changes in foreign currency exchange rates can affect the value of the Fund&#x2019;s portfolio.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;  &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The economies of certain foreign markets may not compare favorably with the economy of the United States with &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;respect to such issues as growth of gross national product, reinvestment of capital, resources and balance of &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;payments position.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;  &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The governments of certain countries, or the U.S. Government with respect to certain countries, may prohibit or &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;impose substantial restrictions through capital controls and/or sanctions on foreign investments in the capital &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;markets or certain industries in those countries, which may prohibit or restrict the ability to own or transfer &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;currency, securities, derivatives or other assets.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;  &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Many foreign governments do not supervise and regulate stock exchanges, brokers and the sale of securities to &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;the same extent as does the United States and may not have laws to protect investors that are comparable to &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;U.S. securities laws.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;  &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.0pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Settlement and clearance procedures in certain foreign markets may result in delays in payment for or delivery of &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;securities not typically associated with settlement and clearance of U.S. investments.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;  &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The Fund&#x2019;s claims to recover foreign withholding taxes may not be successful, and if the likelihood of recovery of &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;foreign withholding taxes materially decreases, due to, for example, a change in tax regulation or approach in the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;foreign country, accruals in the Fund&#x2019;s net asset value for such refunds may be written down partially or in full, &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;which will adversely affect the Fund&#x2019;s net asset value.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_InformationTechnologySectorRiskMember"
      id="t_76_5b73df34_331f_1fc7_7ce9_cd6d9a2a7efd"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Information Technology Sector Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; IT companies face intense competition and potentially rapid product &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;obsolescence. They are also heavily dependent on intellectual property rights and may be adversely affected by the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;loss or impairment of those rights. Companies in the IT sector may face increased government and regulatory &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;scrutiny and may be subject to adverse government or regulatory action. Companies in the software industry may be &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;adversely affected by, among other things, the decline or fluctuation of subscription renewal rates for their products &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;and services and actual or perceived vulnerabilities in their products or services.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_LargeCapitalizationCompaniesRiskMember"
      id="t_77_cdeeba11_0aec_4b99_3814_a65424bf2c8d"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Large-Capitalization Companies Risk&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; &#x2014; Large-capitalization companies may be less able than smaller-capitalization &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;companies to adapt to changing market conditions and competitive challenges. Large-capitalization companies may &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;be more mature and subject to more limited growth potential compared with smaller-capitalization companies. The &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;performance of large-capitalization companies could trail the overall performance of the broader securities markets. &lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;  &lt;div style="line-height: 10.695pt; margin-left: 12pt; text-align: left;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Fund performance depends on the performance of individual securities to which the Fund has exposure. Changes in &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;the financial condition or credit rating of an issuer of those securities may cause the value of the securities to &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;decline.&lt;/span&gt;&lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_MarketRiskAndSelectionRiskMember"
      id="t_78_843031c7_1f49_e7e3_7b48_d4ad005a512d"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Market Risk and Selection Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; Market risk is the risk that one or more markets in which the Fund invests will &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;security or other asset may decline due to changes in general market conditions, economic trends or events that &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;investments. Selection risk is the risk that the securities selected by Fund management will underperform the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;markets, the relevant indices or the securities selected by other funds with similar investment objectives and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;investment strategies. This means you may lose money.&lt;/span&gt; &lt;br/&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_MidCapSecuritiesRiskMember"
      id="t_79_599cfa87_d8b2_8137_9c74_0e2144413fec"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Mid Cap Securities Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; The securities of mid cap companies generally trade in lower volumes and are generally &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;subject to greater and less predictable price changes than the securities of larger capitalization companies.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_OperationalAndTechnologyRisksMember"
      id="t_80_cb3bce2c_5f8b_a348_84b1_0cec0767dfb4"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Operational and Technology Risks &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; The Fund is directly and indirectly susceptible to operational and technology &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;risks, including those related to human errors, processing errors, communication errors, systems failures, &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;cybersecurity incidents, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;), which may result in losses &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;for the Fund and its shareholders or may impair the Fund&#x2019;s operations. While the Fund&#x2019;s service providers are &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;required to have appropriate operational, information security and cybersecurity risk management policies and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;procedures, their methods of risk management may differ from those of the Fund. Operational and technology risks &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;for the issuers in which the Fund invests could also result in material adverse consequences for such issuers and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;may cause the Fund&#x2019;s investments in such issuers to lose value.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_PreferredSecuritiesRiskMember"
      id="t_81_2afe76e7_7cf8_1c25_7463_e8678b93533e"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.0pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Preferred Securities Risk&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; &#x2014; Preferred securities may pay fixed or adjustable rates of return. Preferred securities &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;are subject to issuer-specific and market risks applicable generally to equity securities. In addition, a company&#x2019;s &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;preferred securities generally pay dividends only after the company makes required payments to holders of its &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;bonds and other debt. For this reason, the value of preferred securities will usually react more strongly than bonds &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;and other debt to actual or perceived changes in the company&#x2019;s financial condition or prospects. Preferred &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;securities of smaller companies may be more vulnerable to adverse developments than preferred securities of &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;larger companies.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_RiskOfInvestingInTheUnitedStatesMember"
      id="t_82_a4a194c4_f8a6_8924_c0e8_72c31c3693d2"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Risk of Investing in the United States &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic;"&gt;&#x2014;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; Certain changes in the U.S. economy, such as when the U.S. economy &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;exposure.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_SectorRiskMember"
      id="t_83_9d6c496c_35c1_9959_01b4_4d7d749f0bad"> &lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Sector Risk&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; &#x2014; Sector risk is the risk that the Fund&#x2019;s concentration in the securities of companies in a specific &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;market sector or industry will cause the Fund to be more exposed to the price movements of companies in and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;developments affecting that sector than a more broadly diversified fund. To the extent that the Fund concentrates &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;its investments in a particular sector, there is the risk that the Fund will perform poorly during a downturn in that &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;sector.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt; </oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_53_18d67dea_1d13_8733_66ad_cff423796b3e">Performance Information</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_54_76472aff_056d_7b29_f600_7bcd51c16d87"> &lt;div style="margin-top: 6pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The information shows you how the Fund&#x2019;s performance has varied year by year and provides some indication of the risks of investing in the Fund. The table compares the Fund&#x2019;s performance to that of the Russell 1000&lt;span style="color: #000000; font-family: arial; font-size: 5pt; position: relative; top: -3.25pt;"&gt;&#xae;&lt;/span&gt; Index and the Russell 1000&lt;span style="color: #000000; font-family: arial; font-size: 5pt; position: relative; top: -3.25pt;"&gt;&#xae;&lt;/span&gt; Growth Index. The Russell 1000&lt;span style="color: #000000; font-family: arial; font-size: 5pt; position: relative; top: -3.25pt;"&gt;&#xae;&lt;/span&gt; Growth Index is relevant to the Fund because it has characteristics similar to the Fund&#x2019;s investment strategy. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results. Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown. However, the table includes all applicable fees and sales charges. If the Fund&#x2019;s investment manager and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund&#x2019;s returns would have been lower. Updated information on the Fund&#x2019;s performance, including its current net asset value, can be obtained by visiting www.blackrock.com or can be obtained by phone at 800-882-0052.&lt;/span&gt;&lt;/div&gt; </oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_86_b9ee1a07_e0b3_4b3d_8f37_871cf2d134e5">The information shows you how the Fund&#x2019;s performance has varied year by year and provides some indication of the risks of investing in the Fund.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformanceAdditionalMarketIndex
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_87_55249bf1_2afe_5ae9_a03f_3ef19c2c872d">The table compares the Fund&#x2019;s performance to that of the Russell 1000&#xae; Index and the Russell 1000&#xae; Growth Index. The Russell 1000&#xae; Growth Index is relevant to the Fund because it has characteristics similar to the Fund&#x2019;s investment strategy.</oef:PerformanceAdditionalMarketIndex>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_88_40343336_9f7a_b43d_3d59_c8cfd6f4583e">As with all such investments, past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:BarChartDoesNotReflectSalesLoads
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_89_89e47adf_1fef_3b8c_234f_d2ef5980427c">Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown.</oef:BarChartDoesNotReflectSalesLoads>
    <oef:PerformanceTableDoesReflectSalesLoads
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_90_231e5c84_fd5b_0d59_08b9_a2b4fd7dd030">However, the table includes all applicable fees and sales charges.</oef:PerformanceTableDoesReflectSalesLoads>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_91_38f7cbbe_e83b_2a09_fd3a_8b66a778db87">www.blackrock.com</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceAvailabilityPhone
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_92_8ef9d29b_5a74_8e68_6d54_67882ad348b3">800-882-0052</oef:PerformanceAvailabilityPhone>
    <oef:BarChartHeading
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_55_59981991_322f_b543_96b3_c503b023d0d6"> Investor A Shares ANNUAL TOTAL RETURNS BlackRock Large Cap Focus Growth Fund, Inc. As of 12/31 </oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_56_378dd9b8_357c_7f55_39c6_8cb5fe084966"> &lt;div style="margin-top: 6pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;During the ten-year period shown in the bar chart, the highest return for a quarter was 29.61% (quarter ended &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;June 30, 2020) and the lowest return for a quarter was -22.96% (quarter ended June 30, 2022). The year-to-date return as of June 30, 2025 was 7.24%.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 1pt; line-height: 0.93pt;"&gt;&#x2003;&lt;/span&gt;&lt;/div&gt; </oef:BarChartClosingTextBlock>
    <oef:HighestQuarterlyReturnLabel
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      id="t_62_64eb60b9_c95f_2586_1cc9_414c9261dbc5">highest return</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_69_e9aeae30_760b_bb51_9525_84aa4485a91b"
      unitRef="pure">0.2961</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      id="t_63_1f93e388_8f26_4570_46b6_026bcd5c9a6c">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      id="t_65_f26f4b0b_23b2_3abb_a2bf_f049056bf942">lowest return</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_70_7d6330c8_af02_7df5_8efd_f1b936fb4088"
      unitRef="pure">-0.2296</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      id="t_66_819c1f8c_5737_0e8a_d283_0e65073c22eb">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      id="t_93_b8a7841c_0910_5d63_18d6_6081c07075ef">year-to-date return</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturnDate
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      id="t_67_3645fc16_d9db_8885_b2d9_f99c5daa8383">2025-06-30</oef:BarChartYearToDateReturnDate>
    <oef:BarChartYearToDateReturn
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember_C000006151Member"
      decimals="4"
      id="h_71_4d5573ef_0059_7426_f718_67a91ef66c60"
      unitRef="pure">0.0724</oef:BarChartYearToDateReturn>
    <oef:PerformanceTableHeading
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_64_2b9c1aff_8fc6_ea19_04e6_394de9272d62">For the periods ended 12/31/24Average Annual Total Returns</oef:PerformanceTableHeading>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_C000006151Member_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_48_a3a3dea8_03ed_4e16_b2d5_8daf76f8b3b1"
      unitRef="pure">0.2368</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_C000006151Member_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_49_4b024120_8fb5_4e81_a823_01e0849ff3b3"
      unitRef="pure">0.1478</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_C000006151Member_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_50_3d738282_77f6_406c_97ac_d9c6f131e2ff"
      unitRef="pure">0.1445</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsMember"
      decimals="4"
      id="h_51_6a04c2f4_9391_425c_9fb6_bc02a7149626"
      unitRef="pure">0.2238</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsMember"
      decimals="4"
      id="h_52_02e5f6e4_a659_44f9_9373_14fc0d7aa383"
      unitRef="pure">0.1349</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsMember"
      decimals="4"
      id="h_53_f2502dc8_175e_4694_8486_702a7e43d34c"
      unitRef="pure">0.1329</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsAndSalesMember"
      decimals="4"
      id="h_54_e0209b05_91cb_485b_a752_ddbc1f8c43bd"
      unitRef="pure">0.1487</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsAndSalesMember"
      decimals="4"
      id="h_55_296784d2_cb51_42c3_b22e_dd20c7e12215"
      unitRef="pure">0.1161</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_C000006151Member_InvestorACAndInstitutionalMember_AfterTaxesOnDistributionsAndSalesMember"
      decimals="4"
      id="h_56_a96b8dfb_da9d_4518_83f6_abca5e18fae6"
      unitRef="pure">0.1180</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_C000006153Member_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_57_aedc94ea_0e6b_4e0e_afe0_053be41028fb"
      unitRef="pure">0.2849</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_C000006153Member_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_58_b21be648_7367_49d6_b965_6b1cbcccee79"
      unitRef="pure">0.1514</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_C000006153Member_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_59_4a94cb69_eb8a_4c26_a826_bad440fd96bd"
      unitRef="pure">0.1438</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_C000006154Member_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_60_273ce31d_82ec_4587_8628_fed68aa6226b"
      unitRef="pure">0.3110</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_C000006154Member_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_61_327e068f_1523_41fa_a63e_0fab73cacdd0"
      unitRef="pure">0.1634</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_C000006154Member_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_62_ae38385d_a489_416f_815a_2fad07b69013"
      unitRef="pure">0.1538</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_Russell1000IndexMember_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_63_50410ad0_56f9_4745_a83d_b1a9f2bdadac"
      unitRef="pure">0.2541</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_Russell1000IndexMember_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_64_8afdcd35_a4b8_43b5_b9ab_9df681ba62ba"
      unitRef="pure">0.1428</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_Russell1000IndexMember_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_65_8380143c_765f_4ef8_a797_7f86a3db0876"
      unitRef="pure">0.1287</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_Russell1000GrowthIndexMember_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_66_d59fc324_8a24_4cf8_9d6c_21e997e2da48"
      unitRef="pure">0.3336</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_Russell1000GrowthIndexMember_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_67_5466eea4_fe75_42de_a1e4_4604a1050b31"
      unitRef="pure">0.1896</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_Russell1000GrowthIndexMember_InvestorACAndInstitutionalMember"
      decimals="4"
      id="h_68_5b777de0_5078_4b10_ac66_82638cc9c08e"
      unitRef="pure">0.1678</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_57_68a7fef6_4153_72b9_1725_d3f07f4beb87"> &lt;div style="margin-top: 12pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;reflect the impact of state and local taxes. Actual after-tax returns depend on the investor&#x2019;s tax situation and may &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns are shown for &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Investor A Shares only, and the after-tax returns for Investor C and Institutional Shares will vary.&lt;/span&gt;&lt;/div&gt; </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_58_c03aa8b3_ff65_6d2c_ec43_09a1a28bc084">After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do notreflect the impact of state and local taxes.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_59_8c680cd0_e45a_ab6d_f585_0bffd2dee806">Actual after-tax returns depend on the investor&#x2019;s tax situation and maydiffer from those shown, and the after-tax returns shown are not relevant to investors who hold their shares throughtax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerformanceTableOneClassOfAfterTaxShown
      contextRef="D20250531_20250531_S000002344Member_InvestorACAndInstitutionalMember"
      id="t_60_66be1850_d201_a290_a924_9c83fecbc5b8">After-tax returns are shown forInvestor A Shares only, and the after-tax returns for Investor C and Institutional Shares will vary.</oef:PerformanceTableOneClassOfAfterTaxShown>
    <oef:RiskReturnHeading
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_89_9de6b2d8_7aeb_3108_3f62_ad7b4dcb048c">Fund Overview Key Facts About BlackRock Large Cap Focus Growth Fund, Inc. </oef:RiskReturnHeading>
    <oef:ObjectiveHeading
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_90_8db57016_0e9c_1009_7d1d_bac972cc2eb2">Investment Objective</oef:ObjectiveHeading>
    <oef:ObjectivePrimaryTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_20_8c1d4e18_3a26_4f16_9be8_c3e564dc1540"> &lt;div style="margin-top: 6pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The investment objective of the BlackRock Large Cap Focus Growth Fund, Inc. (the &#x201c;Fund&#x201d;) is long-term capital &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;appreciation.&lt;/span&gt;&lt;/div&gt; </oef:ObjectivePrimaryTextBlock>
    <oef:ExpenseHeading
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_91_4ca00625_d446_eb84_eb91_4e527d9fad69">Fees and Expenses of the Fund</oef:ExpenseHeading>
    <oef:ExpenseNarrativeTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_22_ea475970_1a36_4967_8fe9_c3b394b506f8"> &lt;div style="margin-top: 6pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;This table describes the fees and expenses that you may pay if you buy, hold and sell Class K Shares of the Fund. &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;You &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;may pay other fees, such as brokerage commissions and other fees to your financial professional or your selected &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;Advisors, LLC (&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;BlackRock&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;) and its affiliates) (each, a &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;Financial Intermediary&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;), which are not reflected in the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-weight: bold;"&gt;table and example below.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 1pt; line-height: 0.93pt;"&gt;&#x2003;&lt;/span&gt;&lt;/div&gt; </oef:ExpenseNarrativeTextBlock>
    <oef:OperatingExpensesCaption
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_23_e9bb8654_9426_4602_a842_a38009f31cae">  Annual Fund Operating Expenses  (expenses that you pay each year as a  percentage of the value of your investment)  </oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="4"
      id="h_69_0804621f_e896_457b_9108_9a52c26d55d8"
      unitRef="pure">0.0050</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="4"
      id="h_70_53b3691e_ccd5_4ae8_9fda_79d5a36faa76"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="4"
      id="h_71_1eb7da66_9893_4c20_af91_bc42427cc92d"
      unitRef="pure">0.0016</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="4"
      id="h_72_38e459fb_9e17_434b_8bb3_c48cee136f78"
      unitRef="pure">0.0066</oef:ExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssets
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="4"
      id="h_73_4eecaa32_caac_4847_8ab1_7439f35604f7"
      unitRef="pure">-0.0004</oef:FeeWaiverOrReimbursementOverAssets>
    <oef:NetExpensesOverAssets
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="4"
      id="h_74_b834a5b3_2a92_474c_9fcf_f052ff2fe5aa"
      unitRef="pure">0.0062</oef:NetExpensesOverAssets>
    <oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_92_5f99d37b_a9b6_2ab8_dc3f_6ad8afe5700c">June 30, 2027</oef:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
    <oef:ExpenseExampleHeading
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_24_aec086fd_6f2d_42da_aeae_fc66d185bf81">  Example:  </oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_25_6853c3b7_dd53_426f_b680_823ea9589abd"> &lt;div style="line-height: 10.695pt; text-align: left;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;return each year and that the Fund&#x2019;s operating expenses remain the same. Although your actual costs may be higher &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;or lower, based on these assumptions your costs would be:&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 1pt; line-height: 0.93pt;"&gt;&#x2003;&lt;/span&gt;&lt;/div&gt; </oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="INF"
      id="h_75_e6257fbd_29f6_4573_923d_ba7fb73c450c"
      unitRef="USD">63</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="INF"
      id="h_76_8d6ce24a_9e06_431e_b97d_6acec415ef7d"
      unitRef="USD">207</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="INF"
      id="h_77_4c7e5d2f_83c0_471c_bd95_ff80eb06545e"
      unitRef="USD">364</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="INF"
      id="h_78_cd9ae5dd_b514_485f_af4d_37dc174eae56"
      unitRef="USD">819</oef:ExpenseExampleYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_26_a32ba09b_efd7_4605_99c3_e7f023fb1ae1">  Portfolio Turnover:  </oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_27_2b75da6c_5e04_4dce_900a_0400b95413e8"> &lt;div style="line-height: 10.695pt; text-align: left;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &#x201c;turns over&#x201d; its &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Example, affect the Fund&#x2019;s performance. During the most recent fiscal year, the Fund&#x2019;s portfolio turnover rate was &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;31&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;% of the average value of its portfolio.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;/div&gt; </oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      decimals="4"
      id="h_79_a2eccee4_673b_4048_b604_aba8a35850ac"
      unitRef="pure">0.31</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_93_63dbf21e_aed5_a659_2674_cac1315adf4e">Principal Investment Strategies of the Fund</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_29_b3f27bbe_df50_4a60_b640_d5e9860ebc41"> &lt;div style="margin-top: 6pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The Fund is an aggressive growth fund that generally invests in not less than 25 to not more than 60 companies that &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Fund management believes have strong earnings and revenue growth and capital appreciation potential (also known as &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;aggressive growth companies&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;). Under normal circumstances, the Fund seeks to invest at least 80% of its net assets &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;plus the amount of any borrowings for investment purposes in large cap growth equity securities and derivatives that &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;provide investment exposure to such securities or to one or more market risk factors associated with such securities. &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;For purposes of the Fund&#x2019;s 80% policy, large cap growth equity securities are equity securities that (i) at the time of &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;purchase have a market capitalization within the range of companies included in the Russell 1000&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 5pt; position: relative; top: -3.25pt;"&gt;&#xae;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; Growth Index (the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Russell 1000 Growth Index&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;) and (ii) are included within at least one growth index, as determined by BlackRock (the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Growth Indices&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;). Currently, such Growth Indices are the Russell 3000&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 5pt; position: relative; top: -3.25pt;"&gt;&#xae;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; Growth Index, the S&amp;amp;P Composite 1500&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 5pt; position: relative; top: -3.25pt;"&gt;&#xae;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Growth Index and the MSCI World Growth Index. The Russell 1000 Growth Index is a capitalization-weighted index from &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;a broad range of industries chosen for market size, liquidity and industry group representation. Equity securities &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;consist of common stock, preferred stock and other financial instruments that are components of, or have &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;characteristics similar to, the securities included in the Growth Indices, and American Depositary Receipts (&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201c;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;ADRs&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x201d;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;) &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;which are receipts typically issued by an American bank or trust company that evidence underlying securities issued by &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;a foreign company. In addition to ADRs, the Fund may also invest up to 20% of its total assets in securities of foreign &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;companies. The Fund may also purchase convertible securities.&lt;/span&gt;&lt;/div&gt; </oef:StrategyNarrativeTextBlock>
    <fnd:NmRule35d1EightyPctInvstmntPlcyTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_130_b619ed10_b79e_d676_3a5a_2e04589a89fb">Under normal circumstances, the Fund seeks to invest at least 80% of its net assets plus the amount of any borrowings for investment purposes in large cap growth equity securities and derivatives that provide investment exposure to such securities or to one or more market risk factors associated with such securities. </fnd:NmRule35d1EightyPctInvstmntPlcyTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_RiskLoseMoneyMember"
      id="t_114_e7c71fe2_a82a_4766_7af4_83448c89030d">You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_RiskNotInsuredDepositoryInstitutionMember"
      id="t_115_7d2c8808_476c_dd78_e4d0_725ac1ad7818">An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other Government agency.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_EquitySecuritiesRiskMember"
      id="t_116_9655a908_d1d6_c191_2842_7547cd512f49">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Equity Securities Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; Stock markets are volatile. The price of equity securities fluctuates based on changes in a &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;company&#x2019;s financial condition and overall market and economic conditions.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_FocusRiskMember"
      id="t_117_daa6a1d6_84e0_9506_03bd_4d440fdd63b1">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Focus Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; Under normal circumstances, the Fund focuses its investments in the securities of a limited number &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;of issuers. This may subject the Fund to greater issuer-specific risk and potential losses than a fund that invests in &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;the securities of a greater number of issuers.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_InvestmentStyleRiskMember"
      id="t_118_abba9edf_8ace_c371_1133_fbb530b8c291">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Investment Style Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic;"&gt;&#x2014;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; Under certain market conditions, growth investments have performed better during the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;later stages of economic expansion. Therefore, this investment style may over time go in and out of favor. At times &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;when the investment style used by the Fund is out of favor, the Fund may underperform other equity funds that use &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;different investment styles.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_ConvertibleSecuritiesRiskMember"
      id="t_119_39f8af97_2a0a_c061_e7cd_11793c4eb8cd">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Convertible Securities Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; The market value of a convertible security performs like that of a regular debt &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;security; that is, if market interest rates rise, the value of a convertible security usually falls. In addition, convertible &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;securities are subject to the risk that the issuer will not be able to pay interest, principal or dividends when due, and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;their market value may change based on changes in the issuer&#x2019;s credit rating or the market&#x2019;s perception of the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;issuer&#x2019;s creditworthiness. Since it derives a portion of its value from the common stock into which it may be &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;converted, a convertible security is also subject to the same types of market and issuer risks that apply to the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;underlying common stock, including the potential for increased volatility in the price of the convertible security.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_DepositaryReceiptsRiskMember"
      id="t_120_53178cfa_1095_950a_baa0_e9d2db783dfb">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Depositary Receipts Risk&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; &#x2014; Depositary receipts are generally subject to the same risks as the foreign securities &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;that they evidence or into which they may be converted. In addition to investment risks associated with the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;underlying issuer, depositary receipts expose the Fund to additional risks associated with the non-uniform terms &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;that apply to depositary receipt programs, credit exposure to the depository bank and to the sponsors and other &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;parties with whom the depository bank establishes the programs, currency risk and the risk of an illiquid market for &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;depositary receipts. The issuers of unsponsored depositary receipts are not obligated to disclose information that &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;is, in the United States, considered material. Therefore, there may be less information available regarding these &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;issuers and there may not be a correlation between such information and the market value of the depositary &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;receipts. While depositary receipts provide an alternative to directly purchasing underlying foreign securities in their &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;respective markets and currencies, they continue to be subject to many of the risks associated with investing &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;directly in foreign securities, including political, economic, and currency risk.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_ForeignSecuritiesRiskMember"
      id="t_121_01a48c4d_400a_67a0_0ea1_3987bc11ed7a">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.0pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Foreign Securities Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; Foreign investments often involve special risks not present in U.S. investments that can &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;increase the chances that the Fund will lose money. These risks include:&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;&lt;div&gt; &lt;div style="clear: both; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The Fund generally holds its foreign securities and cash in foreign banks and securities depositories, which may &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;be recently organized or new to the foreign custody business and may be subject to only limited or no regulatory &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;oversight.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Changes in foreign currency exchange rates can affect the value of the Fund&#x2019;s portfolio.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The economies of certain foreign markets may not compare favorably with the economy of the United States with &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;respect to such issues as growth of gross national product, reinvestment of capital, resources and balance of &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;payments position.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The governments of certain countries, or the U.S. Government with respect to certain countries, may prohibit or &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;impose substantial restrictions through capital controls and/or sanctions on foreign investments in the capital &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;markets or certain industries in those countries, which may prohibit or restrict the ability to own or transfer &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;currency, securities, derivatives or other assets.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Many foreign governments do not supervise and regulate stock exchanges, brokers and the sale of securities to &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;the same extent as does the United States and may not have laws to protect investors that are comparable to &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;U.S. securities laws.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.0pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Settlement and clearance procedures in certain foreign markets may result in delays in payment for or delivery of &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;securities not typically associated with settlement and clearance of U.S. investments.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; margin-left: 12pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 493.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The Fund&#x2019;s claims to recover foreign withholding taxes may not be successful, and if the likelihood of recovery of &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;foreign withholding taxes materially decreases, due to, for example, a change in tax regulation or approach in the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;foreign country, accruals in the Fund&#x2019;s net asset value for such refunds may be written down partially or in full, &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;which will adversely affect the Fund&#x2019;s net asset value.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_InformationTechnologySectorRiskMember"
      id="t_122_7341fdab_3e3d_a9d4_1c8e_e14e58e91d1b">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Information Technology Sector Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; IT companies face intense competition and potentially rapid product &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;obsolescence. They are also heavily dependent on intellectual property rights and may be adversely affected by the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;loss or impairment of those rights. Companies in the IT sector may face increased government and regulatory &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;scrutiny and may be subject to adverse government or regulatory action. Companies in the software industry may be &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;adversely affected by, among other things, the decline or fluctuation of subscription renewal rates for their products &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;and services and actual or perceived vulnerabilities in their products or services.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_LargeCapitalizationCompaniesRiskMember"
      id="t_123_75ef0d10_4cfe_7fa8_cd42_b2579a901b04">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Large-Capitalization Companies Risk&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; &#x2014; Large-capitalization companies may be less able than smaller-capitalization &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;companies to adapt to changing market conditions and competitive challenges. Large-capitalization companies may &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;be more mature and subject to more limited growth potential compared with smaller-capitalization companies. The &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;performance of large-capitalization companies could trail the overall performance of the broader securities markets. &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Fund performance depends on the performance of individual securities to which the Fund has exposure. Changes in &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;the financial condition or credit rating of an issuer of those securities may cause the value of the securities to &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;decline.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_MarketRiskAndSelectionRiskMember"
      id="t_124_7bd12cd4_3ef1_b517_26df_3d1db29679e8">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Market Risk and Selection Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; Market risk is the risk that one or more markets in which the Fund invests will &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;go down in value, including the possibility that the markets will go down sharply and unpredictably. The value of a &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;security or other asset may decline due to changes in general market conditions, economic trends or events that &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;are not specifically related to the issuer of the security or other asset, or factors that affect a particular issuer or &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;issuers, exchange, country, group of countries, region, market, industry, group of industries, sector or asset class. &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;issues like pandemics or epidemics, recessions, or other events could have a significant impact on the Fund and its &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;investments. Selection risk is the risk that the securities selected by Fund management will underperform the &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;markets, the relevant indices or the securities selected by other funds with similar investment objectives and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;investment strategies. This means you may lose money.&lt;/span&gt; &lt;br/&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_MidCapSecuritiesRiskMember"
      id="t_125_4328a88b_e9dc_902b_1cad_8b5dacec1a6b">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Mid Cap Securities Risk &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; The securities of mid cap companies generally trade in lower volumes and are generally &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;subject to greater and less predictable price changes than the securities of larger capitalization companies.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_OperationalAndTechnologyRisksMember"
      id="t_126_ecfe45f8_2db6_59b4_68b7_768469db958a">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Operational and Technology Risks &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;&#x2014; The Fund is directly and indirectly susceptible to operational and technology &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;risks, including those related to human errors, processing errors, communication errors, systems failures, &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;cybersecurity incidents, and the use of artificial intelligence and machine learning (&#x201c;AI&#x201d;), which may result in losses &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;for the Fund and its shareholders or may impair the Fund&#x2019;s operations. While the Fund&#x2019;s service providers are &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;required to have appropriate operational, information security and cybersecurity risk management policies and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;procedures, their methods of risk management may differ from those of the Fund. Operational and technology risks &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;for the issuers in which the Fund invests could also result in material adverse consequences for such issuers and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;may cause the Fund&#x2019;s investments in such issuers to lose value.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_PreferredSecuritiesRiskMember"
      id="t_127_0fa77b26_748c_871c_ada2_1c17111316bf">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Preferred Securities Risk&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; &#x2014; Preferred securities may pay fixed or adjustable rates of return. Preferred securities &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;are subject to issuer-specific and market risks applicable generally to equity securities. In addition, a company&#x2019;s &lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;&lt;div style="line-height: 10.695pt; margin-left: 12pt; text-align: left;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;preferred securities generally pay dividends only after the company makes required payments to holders of its &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;bonds and other debt. For this reason, the value of preferred securities will usually react more strongly than bonds &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;and other debt to actual or perceived changes in the company&#x2019;s financial condition or prospects. Preferred &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;securities of smaller companies may be more vulnerable to adverse developments than preferred securities of &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;larger companies.&lt;/span&gt;&lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_RiskOfInvestingInTheUnitedStatesMember"
      id="t_128_c231e269_cdd2_8164_db5a_bb38485cf040">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Risk of Investing in the United States &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic;"&gt;&#x2014;&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; Certain changes in the U.S. economy, such as when the U.S. economy &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;exposure.&lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_SectorRiskMember"
      id="t_129_baca8c48_7042_060a_be5c_61748a4e43e8">&lt;div&gt; &lt;div style="clear: both; margin-top: 4.805pt; position: relative; width: 100%;"&gt; &lt;div style="float: left; line-height: 9.87pt; text-align: left; width: 8pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 8.37pt; position: relative; top: -0.5pt;"&gt;&#x25fc;&lt;/span&gt;&lt;/div&gt; &lt;div style="float: left; line-height: 10.80pt; margin-left: 4pt; text-align: left; width: 505.00pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; font-style: italic; font-weight: bold;"&gt;Sector Risk&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt; &#x2014; Sector risk is the risk that the Fund&#x2019;s concentration in the securities of companies in a specific &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;market sector or industry will cause the Fund to be more exposed to the price movements of companies in and &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;developments affecting that sector than a more broadly diversified fund. To the extent that the Fund concentrates &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;its investments in a particular sector, there is the risk that the Fund will perform poorly during a downturn in that &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;sector.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;/div&gt; &lt;/div&gt; &lt;div style="clear: both; position: relative;"&gt; &lt;/div&gt; &lt;/div&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_94_fbd987d9_fc88_46de_4a67_c47b758d5e4e">Performance Information</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_102_4cc5b7d5_0b97_e111_ea15_238cbab117b7">&lt;div style="margin-top: 6pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;The information shows you how the Fund&#x2019;s performance has varied year by year and provides some indication of the risks of investing in the Fund. Class K Shares commenced operations on November 25, 2019. As a result, the returns shown below for Class K Shares prior to November 25, 2019 are those of the Fund&#x2019;s Institutional Shares, which are not offered in this prospectus. The performance of Class K Shares would be substantially similar to Institutional Shares because Class K Shares and Institutional Shares are invested in the same portfolio of securities and performance would differ only to the extent that Class K Shares and Institutional Shares have different expenses. The actual returns of Class K Shares would have been higher than those of Institutional Shares because Class K Shares have lower expenses than Institutional Shares. The table compares the Fund&#x2019;s performance to that of the Russell 1000&#xae; Index and the Russell 1000&#xae; Growth Index. The Russell 1000&#xae; Growth Index is relevant to the Fund because it has characteristics similar to the Fund&#x2019;s investment strategy. To the extent that dividends and distributions have been paid by the Fund, the performance information for the Fund in the chart and table assumes reinvestment of the dividends and distributions. As with all such investments, past performance (before and after taxes) is not an indication of future results. The table includes all applicable fees. If the Fund&#x2019;s investment manager and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Fund&#x2019;s returns would have been lower. Updated information on the Fund&#x2019;s performance, including its current net asset value, can be obtained by visiting www.blackrock.com or can be obtained by phone at 800-882-0052.&lt;/span&gt;&lt;/div&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_104_5cc48fe2_38f6_c267_45a8_9cef9834d9f7">The information shows you how the Fund&#x2019;s performance has varied year by year and provides some indication of the risks of investing in the Fund.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformanceAdditionalMarketIndex
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_103_92fc0136_0ef1_5059_2f1b_fa2dc312d9ed">The table compares the Fund&#x2019;s performance to that of the Russell 1000&#xae; Index and the Russell 1000&#xae; Growth Index. The Russell 1000&#xae; Growth Index is relevant to the Fund because it has characteristics similar to the Fund&#x2019;s investment strategy.</oef:PerformanceAdditionalMarketIndex>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_105_428dd551_6c4c_b55a_793c_2525313f06e8">As with all such investments, past performance (before and after taxes) is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_106_8b766314_88b9_f48b_b008_ef3fdb4f09e0">www.blackrock.com</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceAvailabilityPhone
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_107_606f8839_4b76_36b9_29b2_4b97e56d1859">800-882-0052</oef:PerformanceAvailabilityPhone>
    <oef:BarChartHeading
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_96_32e3a429_c740_1a34_bfae_46d0bea42ef4"> Class K Shares ANNUAL TOTAL RETURNS BlackRock Large Cap Focus Growth Fund, Inc. As of 12/31 </oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_97_030eff06_c41e_1142_186e_f1e7cdf2e4f9"> &lt;div style="margin-top: 6pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;During the ten-year period shown in the bar chart, the highest return for a quarter was 29.71% (quarter ended &lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;June 30, 2020) and the lowest return for a quarter was -22.90% (quarter ended June 30, 2022). The year-to-date return as of June 30, 2025 was 7.31%.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 1pt; line-height: 0.93pt;"&gt;&#x2003;&lt;/span&gt;&lt;/div&gt; </oef:BarChartClosingTextBlock>
    <oef:HighestQuarterlyReturnLabel
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      id="t_108_08a5604c_1b62_bcb0_a2a9_53c1e8ccce9f">highest return</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="4"
      id="h_101_efffb2d0_fff3_ca00_d4bd_98350ba11d56"
      unitRef="pure">0.2971</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      id="t_109_d1b7e2cc_b72a_7323_a42b_5a2a694092f0">2020-06-30</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      id="t_110_154fc2a7_089f_ff2e_34fd_d0bb3cecd400">lowest return</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="4"
      id="h_102_59b1dc5a_dac5_8d4e_822c_0a9a66d7270a"
      unitRef="pure">-0.2290</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      id="t_111_c1a442d2_8d80_7dab_2672_15d4d9159b4c">2022-06-30</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      id="t_112_c00210bb_a04c_6522_0e2e_b3d193896b9b">year-to-date return</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturnDate
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      id="t_113_2f076f75_90a6_fe15_b824_19892c7458eb">2025-06-30</oef:BarChartYearToDateReturnDate>
    <oef:BarChartYearToDateReturn
      contextRef="D20250531_20250531_S000002344Member_ClassKMember_C000213874Member"
      decimals="4"
      id="h_103_759e9ac0_60e6_5048_5220_9667110f8cd7"
      unitRef="pure">0.0731</oef:BarChartYearToDateReturn>
    <oef:PerformanceTableHeading
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_98_f0dffed0_1aed_a1f9_e6ec_09d21da0b051">For the periods ended 12/31/24Average Annual Total Returns</oef:PerformanceTableHeading>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_C000213874Member_ClassKMember"
      decimals="4"
      id="h_83_f0207289_9c3a_4d5a_867e_8321f4e26726"
      unitRef="pure">0.3106</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_C000213874Member_ClassKMember"
      decimals="4"
      id="h_84_62a31970_23b1_4268_b062_2e819c78f0b4"
      unitRef="pure">0.1636</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_C000213874Member_ClassKMember"
      decimals="4"
      id="h_85_2f58d605_b29a_46d1_87bd_916f36df4bf6"
      unitRef="pure">0.1541</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsMember"
      decimals="4"
      id="h_89_fe3cc009_43c1_4dfd_9397_528133b57a63"
      unitRef="pure">0.2977</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsMember"
      decimals="4"
      id="h_90_734b5f07_6d32_4632_aa06_1e78e644bf10"
      unitRef="pure">0.1515</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsMember"
      decimals="4"
      id="h_91_596de261_94c9_46f8_94bf_802480ec1e43"
      unitRef="pure">0.1432</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsAndSalesMember"
      decimals="4"
      id="h_92_b7708cbd_8fc2_4bf7_bcb6_714ea8b4f65a"
      unitRef="pure">0.1923</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsAndSalesMember"
      decimals="4"
      id="h_93_2337c57a_1086_46cc_9ca0_4a14ce2e283e"
      unitRef="pure">0.1296</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_C000213874Member_ClassKMember_AfterTaxesOnDistributionsAndSalesMember"
      decimals="4"
      id="h_94_797a6739_3250_4c01_9b46_06563f604c85"
      unitRef="pure">0.1269</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_Russell1000IndexMember_ClassKMember"
      decimals="4"
      id="h_95_17977c05_97d2_41b2_951e_3f622c4aa5a4"
      unitRef="pure">0.2541</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_Russell1000IndexMember_ClassKMember"
      decimals="4"
      id="h_96_552bc556_6f25_4273_bdf9_d0738e4bebcf"
      unitRef="pure">0.1428</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_Russell1000IndexMember_ClassKMember"
      decimals="4"
      id="h_97_66081d16_adee_4816_8a8c_78f4ef5a9650"
      unitRef="pure">0.1287</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FY2024_Russell1000GrowthIndexMember_ClassKMember"
      decimals="4"
      id="h_98_5391c99b_f873_4fed_8633_3d82d6f35309"
      unitRef="pure">0.3336</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2024_Russell1000GrowthIndexMember_ClassKMember"
      decimals="4"
      id="h_99_ad01a4d0_dd5c_4018_b597_96af6c380153"
      unitRef="pure">0.1896</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2024_Russell1000GrowthIndexMember_ClassKMember"
      decimals="4"
      id="h_100_ee62b81d_577c_4237_b77a_379013a2167b"
      unitRef="pure">0.1678</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableNarrativeTextBlock
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_99_ce16f3ee_0128_347e_56d9_20f8720d12d9"> &lt;div style="margin-top: 12pt;"&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt;"&gt;After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on the investor&#x2019;s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/span&gt;&lt;span style="color: #000000; font-family: arial; font-size: 9.30pt; line-height: 10.695pt;"&gt; &lt;/span&gt;&lt;/div&gt; </oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_100_4cbdb38b_ea59_926c_602d_92f9f69da6ba">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.</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="D20250531_20250531_S000002344Member_ClassKMember"
      id="t_101_512cf665_4185_dc1c_82c6_17e2d4d74b90">Actual after-tax returns depend on the investor&#x2019;s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</oef:PerformanceTableNotRelevantToTaxDeferred>
    <link:footnoteLink
      xlink:role="http://www.xbrl.org/2003/role/link"
      xlink:type="extended">
        <link:loc
          xlink:href="#h_10_f238aecc_1a2b_43d1_9e1e_4e127c9c42d7"
          xlink:label="h_10_f238aecc_1a2b_43d1_9e1e_4e127c9c42d7"
          xlink:type="locator"/>
        <link:footnote id="f_0001_000003" xlink:label="f_0001_000003" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">As described in the &#x201c;Management of the Fund&#x201d; section of the Fund&#x2019;s prospectus beginning on page 42, BlackRock has contractually agreed to waive the management fee with respect to any portion of the Fund&#x2019;s assets estimated to be attributable to investments in other equity and fixed-income mutual funds and exchange-traded funds managed by BlackRock or its affiliates that have a contractual management fee, through June 30, 2027. In addition, BlackRock has contractually agreed to waive its management fees by the amount of investment advisory fees the Fund pays to BlackRock indirectly through its investment in money market funds managed by BlackRock or its affiliates, through June 30, 2027. The contractual agreements may be terminated upon 90 days&#x2019; notice by a majority of the non-interested directors of the Fund or by a vote of a majority of the outstanding voting securities of the Fund.</link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_10_f238aecc_1a2b_43d1_9e1e_4e127c9c42d7"
          xlink:to="f_0001_000003"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_11_1451018d_ff4b_47e7_8c2f_e6472043b773"
          xlink:label="h_11_1451018d_ff4b_47e7_8c2f_e6472043b773"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_11_1451018d_ff4b_47e7_8c2f_e6472043b773"
          xlink:to="f_0001_000003"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_12_afb3fd04_78c7_4a35_b042_e42562b2029c"
          xlink:label="h_12_afb3fd04_78c7_4a35_b042_e42562b2029c"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_12_afb3fd04_78c7_4a35_b042_e42562b2029c"
          xlink:to="f_0001_000003"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_22_68c961dd_7ca9_43c5_8684_8622e78ea70a"
          xlink:label="h_22_68c961dd_7ca9_43c5_8684_8622e78ea70a"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_22_68c961dd_7ca9_43c5_8684_8622e78ea70a"
          xlink:to="f_0001_000003"
          xlink:type="arc"/>
        <link:footnote id="f_0001_000004" xlink:label="f_0001_000004" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">As described in the &#x201c;Management of the Fund&#x201d; section of the Fund&#x2019;s prospectus beginning on page 42, BlackRock has contractually agreed to waive and/or reimburse fees or expenses in order to limit Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) to 0.92% (for Investor A Shares), 1.67% (for Investor C Shares) and 0.67% (for Institutional Shares) of average daily net assets through June 30, 2027. The contractual agreement may be terminated upon 90 days&#x2019; notice by a majority of the non-interested directors of the Fund or by a vote of a majority of the outstanding voting securities of the Fund.</link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_22_68c961dd_7ca9_43c5_8684_8622e78ea70a"
          xlink:to="f_0001_000004"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_23_d05feec1_d46a_43ac_b454_f0b1e226d76e"
          xlink:label="h_23_d05feec1_d46a_43ac_b454_f0b1e226d76e"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_23_d05feec1_d46a_43ac_b454_f0b1e226d76e"
          xlink:to="f_0001_000003"
          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_23_d05feec1_d46a_43ac_b454_f0b1e226d76e"
          xlink:to="f_0001_000004"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_24_082b6779_7963_480c_b6cf_1377da78a6d1"
          xlink:label="h_24_082b6779_7963_480c_b6cf_1377da78a6d1"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_24_082b6779_7963_480c_b6cf_1377da78a6d1"
          xlink:to="f_0001_000003"
          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_24_082b6779_7963_480c_b6cf_1377da78a6d1"
          xlink:to="f_0001_000004"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_25_74c3fcfa_6645_4e7a_a871_23f0c7ae4de1"
          xlink:label="h_25_74c3fcfa_6645_4e7a_a871_23f0c7ae4de1"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_25_74c3fcfa_6645_4e7a_a871_23f0c7ae4de1"
          xlink:to="f_0001_000003"
          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_25_74c3fcfa_6645_4e7a_a871_23f0c7ae4de1"
          xlink:to="f_0001_000004"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_26_ce954094_351e_4285_9ff6_aa5ec695943f"
          xlink:label="h_26_ce954094_351e_4285_9ff6_aa5ec695943f"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_26_ce954094_351e_4285_9ff6_aa5ec695943f"
          xlink:to="f_0001_000003"
          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_26_ce954094_351e_4285_9ff6_aa5ec695943f"
          xlink:to="f_0001_000004"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_27_4e4214e1_f8b2_4b76_8735_a55e4d4ce667"
          xlink:label="h_27_4e4214e1_f8b2_4b76_8735_a55e4d4ce667"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_27_4e4214e1_f8b2_4b76_8735_a55e4d4ce667"
          xlink:to="f_0001_000003"
          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_27_4e4214e1_f8b2_4b76_8735_a55e4d4ce667"
          xlink:to="f_0001_000004"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_5_61b94022_402f_402b_9b02_9a2d61eed1f4"
          xlink:label="h_5_61b94022_402f_402b_9b02_9a2d61eed1f4"
          xlink:type="locator"/>
        <link:footnote id="f_0001_000001" xlink:label="f_0001_000001" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">A contingent deferred sales charge (&#x201c;CDSC&#x201d;) of 1.00% is assessed on certain redemptions of Investor A Shares made within 18 months after purchase where no initial sales charge was paid at the time of purchase as part of an investment of $1,000,000 or more.</link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_5_61b94022_402f_402b_9b02_9a2d61eed1f4"
          xlink:to="f_0001_000001"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_69_0804621f_e896_457b_9108_9a52c26d55d8"
          xlink:label="h_69_0804621f_e896_457b_9108_9a52c26d55d8"
          xlink:type="locator"/>
        <link:footnote id="f_0003_000001" xlink:label="f_0003_000001" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">As described in the &#x201c;Management of the Fund&#x201d; section of the Fund&#x2019;s prospectus beginning on page 30, BlackRock has contractually agreed to waive the management fee with respect to any portion of the Fund&#x2019;s assets estimated to be attributable to investments in other equity and fixed-income mutual funds and exchange-traded funds managed by BlackRock or its affiliates that have a contractual management fee, through June 30, 2027. In addition, BlackRock has contractually agreed to waive its management fees by the amount of investment advisory fees the Fund pays to BlackRock indirectly through its investment in money market funds managed by BlackRock or its affiliates, through June 30, 2027. The contractual agreements may be terminated upon 90 days&#x2019; notice by a majority of the non-interested directors of the Fund or by a vote of a majority of the outstanding voting securities of the Fund.</link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_69_0804621f_e896_457b_9108_9a52c26d55d8"
          xlink:to="f_0003_000001"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_7_8b846379_1f5b_49f5_bb44_acd68972e032"
          xlink:label="h_7_8b846379_1f5b_49f5_bb44_acd68972e032"
          xlink:type="locator"/>
        <link:footnote id="f_0001_000002" xlink:label="f_0001_000002" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">There is no CDSC on Investor C Shares after one year.</link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_7_8b846379_1f5b_49f5_bb44_acd68972e032"
          xlink:to="f_0001_000002"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_73_4eecaa32_caac_4847_8ab1_7439f35604f7"
          xlink:label="h_73_4eecaa32_caac_4847_8ab1_7439f35604f7"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_73_4eecaa32_caac_4847_8ab1_7439f35604f7"
          xlink:to="f_0003_000001"
          xlink:type="arc"/>
        <link:footnote id="f_0003_000002" xlink:label="f_0003_000002" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US">As described in the &#x201c;Management of the Fund&#x201d; section of the Fund&#x2019;s prospectus beginning on page 30, BlackRock has contractually agreed to waive and/or reimburse fees or expenses in order to limit Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements (excluding Dividend Expense, Interest Expense, Acquired Fund Fees and Expenses and certain other Fund expenses) to 0.62% of average daily net assets through June 30, 2027. The contractual agreement may be terminated upon 90 days&#x2019; notice by a majority of the non-interested directors of the Fund or by a vote of a majority of the outstanding voting securities of the Fund.</link:footnote>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_73_4eecaa32_caac_4847_8ab1_7439f35604f7"
          xlink:to="f_0003_000002"
          xlink:type="arc"/>
        <link:loc
          xlink:href="#h_74_b834a5b3_2a92_474c_9fcf_f052ff2fe5aa"
          xlink:label="h_74_b834a5b3_2a92_474c_9fcf_f052ff2fe5aa"
          xlink:type="locator"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_74_b834a5b3_2a92_474c_9fcf_f052ff2fe5aa"
          xlink:to="f_0003_000001"
          xlink:type="arc"/>
        <link:footnoteArc
          xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote"
          xlink:from="h_74_b834a5b3_2a92_474c_9fcf_f052ff2fe5aa"
          xlink:to="f_0003_000002"
          xlink:type="arc"/>
    </link:footnoteLink>
</xbrl>
