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Label

Element

Value

Risk Return Abstract

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Prospectus Date

rr_ProspectusDate

Dec. 31, 2020

Federated Hermes Kaufmann Large Cap Fund

Risk Return Abstract

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

<span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;">Federated Hermes Kaufmann Large Cap Fund (the “Fund”)</span>

Objective [Heading]

rr_ObjectiveHeading

<span style="color:#000000;font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0%;text-transform:uppercase;">RISK/RETURN SUMMARY: INVESTMENT OBJECTIVE</span>

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Fund’s investment objective is to provide capital appreciation.

Expense [Heading]

rr_ExpenseHeading

<span style="color:#000000;font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0%;text-transform:uppercase;">RISK/RETURN SUMMARY: FEES AND EXPENSES</span>

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

<span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;margin-left:0%;">Shareholder Fees (fees paid directly from your investment)</span>

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

<span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</span>

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

<span style="color:#000000;font-family:Arial;font-size:6.4pt;">January 1, 2022</span>

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

<span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;">Portfolio Turnover</span>

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 24% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

24.00%

Expense Breakpoint Discounts [Text]

rr_ExpenseBreakpointDiscounts

<span style="color:#000000;font-family:Times New Roman;font-size:10pt;">You may qualify for sales </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">charge discounts if you and your family invest, or agree to invest in the future, at least $</span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">50,000</span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;"> in certain classes (e.g., A class) of Federated Hermes Funds.</span>

Expense Breakpoint, Minimum Investment Required [Amount]

rr_ExpenseBreakpointMinimumInvestmentRequiredAmount

$ 50,000

Expense Exchange Traded Fund Commissions [Text]

rr_ExpenseExchangeTradedFundCommissions

<span style="color:#000000;font-family:Times New Roman;font-size:10pt;">If you purchase the Fund’s IS and R6 Shares through a broker acting as an agent on behalf of its customers, you may be </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">required to pay a commission to such broker; such commissions, if any, are not reflected in the Example below.</span>

Expense Example [Heading]

rr_ExpenseExampleHeading

<span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;margin-left:0%;">Example</span>

Strategy [Heading]

rr_StrategyHeading

<span style="color:#000000;font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0%;text-transform:uppercase;">RISK/RETURN SUMMARY: INVESTMENTS, RISKS and PERFORMANCE</span><span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;margin-left:0%;">What are the Fund’s Main Investment Strategies?</span>

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund pursues its investment objective by investing primarily in the common stocks of large companies that are traded on national security exchanges, the NASDAQ stock market and on the over-the-counter market. Large companies will be defined as companies with market capitalizations that are in the top 75% of the market capitalization range of the Russell 1000 Index. The market capitalization of companies of the Russell 1000 Index ranged from approximately $815.6 million to $1.8 trillion. As of October 31, 2020, the market capitalizations of companies within the top 75thpercentile of the Russell 1000 Index ranged from $5.2 billion to $1.8 trillion.The Fund will normally invest at least 80% of its net assets (which include the amount of any borrowings for investment purposes) in large-cap companies and will notify shareholders at least 60 days in advance of any change in its investment policies that would permit the Fund to normally invest less than 80% of its net assets in investments in large companies. Such definition will be applied at the time of investment and the Fund will not be required to sell a stock because a company has fallen outside the market capitalization range of large capitalization stocks. Up to 30% of the Fund’s net assets may be invested in foreign securities. When investing in foreign securities, the Fund’s Adviser and Sub-Adviser (collectively, “Adviser”) may emphasize investment in a particular country or group of countries which may subject the Fund to the risks of investing in such country or group of countries to a greater extent than if the Fund’s foreign security exposure was diversified over a greater number of countries. The Adviser’s process for selecting investments is bottom-up and growth-oriented.The Fund may invest in fixed-income securities, American Depositary Receipts (ADRs) and use derivative contracts and/or hybrid instruments. The Fund may invest in derivative contracts (such as, for example, options, swaps and futures contracts) and hybrid instruments to implement its investment strategies. For example, the Fund may use derivative contracts or hybrid instruments to increase or decrease the portfolio’s exposure to the investment(s) underlying the derivative or hybrid instruments in an attempt to benefit from changes in the value of the underlying investments(s), to realize gain from trading a derivative contract or to hedge against potential losses. There can be no assurances that the Fund’s use of derivatives contracts or hybrid instruments will work as intended. Derivative investments made by the Fund are included within the Fund’s 80% policy and are calculated at market value.

rr_RiskHeading

<span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;margin-left:0%;">What are the Main Risks of Investing in the Fund?</span>

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund. The primary factors that may reduce the Fund’s returns include:■ Stock Market Risk. The value of equity securities in the Fund’s portfolio will fluctuate and, as a result, the Fund’s Share price may decline suddenly or over a sustained period of time. Information publicly available about a company, whether from the company’s financial statements or other disclosures or from third parties, or information available to some but not all market participants, can affect the price of a company’s shares in the market. Among other factors, equity securities may decline in value because of an increase in interest rates or changes in the stock market. Recent and potential future changes in industry and/or economic trends, as well as changes in monetary policy made by central banks and/or their governments, also can affect the level of interest rates and contribute to the development of or increase in volatility, illiquidity, shareholder redemptions and other adverse effects (such as a decline in a company’s stock price), which could negatively impact the Fund’s performance.■ Sector Risk. Because the Fund may allocate relatively more assets to certain industry sectors than others, the Fund’s performance may be more susceptible to any developments, which affect those sectors emphasized by the Fund.■ Risk Related to Investing for Growth. Due to their relatively high valuations, growth stocks are typically more volatile than value stocks. For instance, the price of a growth stock may experience a larger decline on a forecast of lower earnings, a negative fundamental development, or an adverse market development. Further, growth stocks may not pay dividends or may pay lower dividends than value stocks. This means they depend more on price changes for returns and may be more adversely affected in a down market compared to value stocks that pay higher dividends.■ Large-Cap Company Risk. The Fund may invest in large capitalization (or “large-cap”) companies. In addition, large-cap companies may have fewer opportunities to expand the market for their products or services, may focus their competitive efforts on maintaining or expanding their market share, and may be less capable of responding quickly to competitive challenges. These factors could result in the share price of large companies not keeping pace with the overall stock market or growth in the general economy, and could have a negative effect on the Fund’s portfolio, performance and Share price.■ Risk of Foreign Investing. Because the Fund invests in securities issued by foreign companies and national governments, the Fund’s Share price may be more affected by foreign economic and political conditions, taxation policies and accounting and auditing standards than could otherwise be the case.■ Risk of Investing in ADRs and Domestically Traded Securities of Foreign Issuers. Because the Fund may invest in American Depositary Receipts and other domestically traded securities of foreign companies, the Fund’s Share price may be more affected by foreign economic and political conditions, taxation policies and accounting and auditing standards than would otherwise be the case.■ Currency Risk. Exchange rates for currencies fluctuate daily. Foreign securities are normally denominated and traded in foreign currencies. As a result, the value of the Fund’s foreign investments and the value of the shares may be affected favorably or unfavorably by changes in currency exchange rates relative to the U.S. dollar.■ European Union and Eurozone Related Risk. A number of countries in the European Union (EU), including certain countries within the EU that have adopted the euro (Eurozone), have experienced, and may continue to experience, severe economic and financial difficulties. Additional countries within the EU may also fall subject to such difficulties. These events could negatively affect the value and liquidity of the Fund’s investments in euro-denominated securities and derivatives contracts, securities of issuers located in the EU or with significant exposure to EU issuers or countries.■ Custodial Services and Related Investment Costs. Custodial services and other costs relating to investment in international securities markets generally are more expensive due to differing settlement and clearance procedures than those of the United States. The inability of the Fund to make intended securities purchases due to settlement problems could cause the Fund to miss attractive investment opportunities. In addition, security settlement and clearance procedures in some emerging market countries may not fully protect the Fund against loss of its assets.■ Liquidity Risk. Liquidity risk refers to the possibility that the Fund may not be able to sell a security or close out a derivative contract when it wants to. If this happens, the Fund will be required to continue to hold the security or keep the position open, and the Fund could incur losses. OTC derivative contracts generally carry greater liquidity risk than exchange-traded contracts.■ Risk of Investing in Derivative Contracts and Hybrid Instruments. Derivative contracts and hybrid instruments involve risk different from, or possibly greater than, risk associated with investing directly in securities and other traditional investments. Specific risk issues related to the use of such contracts and instruments include valuation and tax issues, increased potential for losses and/or costs to the Fund, and a potential reduction in gains to the Fund. Each of these issues is described in greater detail in this Prospectus. Derivative contracts and hybrid instruments may also involve other risks described in this Prospectus, such as stock market, credit, currency, liquidity and leverage risks.■ Leverage Risk. Leverage risk is created when an investment (such as a derivative transaction) exposes the Fund to a level of risk that exceeds the amount invested. Changes in the value of such an investment magnify the Fund’s risk of loss and potential for gain.■ Credit Risk. Credit risk includes the possibility that a party to a transaction (such as a derivative transaction) involving the Fund will fail to meet its obligations. This could cause the Fund to lose the benefit of the transaction or prevent the Fund from selling or buying other securities to implement its investment strategy.■ Interest Rate Risk. Prices of fixed-income securities generally fall when interest rates rise. The longer the duration of a fixed-income security, the more susceptible it is to interest rate risk. Recent and potential future changes in monetary policy made by central banks and/or their governments are likely to affect the level of interest rates.■ Risk Related to the Economy. The value of the Fund’s portfolio may decline in tandem with a drop in the overall value of the markets in which the Fund invests and/or other markets. Economic, political and financial conditions, industry or economic trends and developments or public health risks, such as epidemics or pandemics, may, from time to time, and for varying periods of time, cause the Fund to experience volatility, illiquidity, shareholder redemptions, or other potentially adverse effects.■ Technology Risk. The Adviser uses various technologies in managing the Fund, consistent with its investment objective and strategy described in this Prospectus. For example, proprietary and third-party data and systems are utilized to support decision making for the Fund. Data imprecision, software or other technology malfunctions, programming inaccuracies and similar circumstances may impair the performance of these systems, which may negatively affect Fund performance.The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.

Risk Lose Money [Text]

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<span style="color:#000000;font-family:Times New Roman;font-size:10pt;">All mutual funds take investment risks. Therefore, it is possible to lose money by investing in the Fund.</span>

RIsk Not Insured [Text]

rr_RiskNotInsured

<span style="color:#000000;font-family:Times New Roman;font-size:10pt;">The Shares offered by this Prospectus are not deposits or obligations of any bank, are not endorsed or guaranteed by any bank and are not insured or guaranteed by the U.S. government, the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.</span>

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

<span style="color:#000000;font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0%;text-transform:uppercase;">Performance: Bar Chart and Table</span><span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;margin-left:0%;">Risk/Return Bar Chart</span>

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

<span style="color:#000000;font-family:Times New Roman;font-size:10pt;">The bar chart and performance table below reflect historical performance data for the Fund and are intended to help you analyze the Fund’s investment risks in light of its historical returns. The bar chart shows the variability of the Fund’s IS class total returns on a calendar year-by-year basis.</span>

Performance Availability Phone [Text]

rr_PerformanceAvailabilityPhone

<span style="color:#000000;font-family:Times New Roman;font-size:10pt;">1-800-341-7400</span>

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

<span style="color:#0000FF;font-family:Times New Roman;font-size:10pt;text-decoration:underline;">FederatedInvestors.com</span>

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

<span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;">The Fund’s performance will fluctuate, and past performance (before and after taxes) is not necessarily an indication of future results.</span>

Bar Chart [Heading]

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Federated Hermes Kaufmann Large Cap Fund – IS Class

Bar Chart Closing [Text Block]

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The Fund's IS class total return for the nine-month period from January 1, 2020 to September 30, 2020, was 17.87%.

Within the periods shown in the bar chart, the Fund's IS class highest quarterly return was 21.23% (quarter ended March 31, 2012). Its lowest quarterly return was (18.40)% (quarter ended September 30, 2011).

Performance Table Heading

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<span style="color:#000000;font-family:Arial;font-size:8.5pt;font-weight:bold;margin-left:0%;">Average Annual Total Return Table</span>

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

<span style="color:#000000;font-family:Times New Roman;font-size:10pt;">After-tax returns are calculated using a standard set of assumptions. The stated returns assume the highest historical </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">federal</span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;"> income and capital gains tax rates. These after-tax returns do </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">not</span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;"> reflect the effect of any applicable </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">state</span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;"> and </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:bold;">local</span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;"> taxes.</span>

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

<span style="color:#000000;font-family:Times New Roman;font-size:10pt;">After-tax returns are not relevant to </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">investors holding Shares through a 401(k) plan, an Individual Retirement Account or other tax-advantaged investment plans.</span>

Performance Table One Class of after Tax Shown [Text]

rr_PerformanceTableOneClassOfAfterTaxShown

<span style="color:#000000;font-family:Times New Roman;font-size:10pt;">After-tax returns are shown only for IS class, and </span><span style="color:#000000;font-family:Times New Roman;font-size:10pt;">after-tax returns for A, C, R and R6 classes will differ from those shown for IS class.</span>

Fee Waiver Or Reimbursement Over Assets, Later Of Termination Or Next Effective Prospectus

fhef_FeeWaiverOrReimbursementOverAssetsLaterOfTerminationOrNextEffectiveProspectus

<span style="color:#000000;font-family:Arial;font-size:6.4pt;">up to but not including the </span><span style="color:#000000;font-family:Arial;font-size:6.4pt;">later of (the “Termination Date”): (a)</span><span style="color:#000000;font-family:Arial;font-size:6.4pt;">January 1, 2022</span><span style="color:#000000;font-family:Arial;font-size:6.4pt;">; or (b) the date of the Fund’s next effective Prospectus.</span>

Federated Hermes Kaufmann Large Cap Fund | A

Risk Return Abstract

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

5.50%

Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)

rr_MaximumDeferredSalesChargeOverOther

none

Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption Fee (as a percentage of amount redeemed, if applicable)

rr_RedemptionFeeOverRedemption

none

rr_ExchangeFeeOverRedemption

none

rr_ManagementFeesOverAssets

0.75%

Distribution (12b-1) Fee

rr_DistributionAndService12b1FeesOverAssets

none

^[1]

rr_OtherExpensesOverAssets

0.43%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.18%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.09%

rr_ExpenseExampleYear01

$ 664

rr_ExpenseExampleYear03

904

rr_ExpenseExampleYear05

1,163

rr_ExpenseExampleYear10

1,903

rr_ExpenseExampleNoRedemptionYear01

664

rr_ExpenseExampleNoRedemptionYear03

904

rr_ExpenseExampleNoRedemptionYear05

1,163

rr_ExpenseExampleNoRedemptionYear10

$ 1,903

rr_AverageAnnualReturnYear01

30.20%

rr_AverageAnnualReturnYear05

11.46%

rr_AverageAnnualReturnYear10

14.31%

Federated Hermes Kaufmann Large Cap Fund | C

Risk Return Abstract

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)

rr_MaximumDeferredSalesChargeOverOther

1.00%

Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption Fee (as a percentage of amount redeemed, if applicable)

rr_RedemptionFeeOverRedemption

none

rr_ExchangeFeeOverRedemption

none

rr_ManagementFeesOverAssets

0.75%

Distribution (12b-1) Fee

rr_DistributionAndService12b1FeesOverAssets

0.75%

rr_OtherExpensesOverAssets

0.44%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.94%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.07%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.87%

rr_ExpenseExampleYear01

$ 297

rr_ExpenseExampleYear03

609

rr_ExpenseExampleYear05

1,047

rr_ExpenseExampleYear10

2,264

rr_ExpenseExampleNoRedemptionYear01

197

rr_ExpenseExampleNoRedemptionYear03

609

rr_ExpenseExampleNoRedemptionYear05

1,047

rr_ExpenseExampleNoRedemptionYear10

$ 2,264

rr_AverageAnnualReturnYear01

35.75%

rr_AverageAnnualReturnYear05

11.87%

rr_AverageAnnualReturnYear10

14.05%

Federated Hermes Kaufmann Large Cap Fund | R

Risk Return Abstract

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)

rr_MaximumDeferredSalesChargeOverOther

none

Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption Fee (as a percentage of amount redeemed, if applicable)

rr_RedemptionFeeOverRedemption

none

rr_ExchangeFeeOverRedemption

none

rr_ManagementFeesOverAssets

0.75%

Distribution (12b-1) Fee

rr_DistributionAndService12b1FeesOverAssets

0.50%

rr_OtherExpensesOverAssets

0.35%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.60%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.12%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

1.48%

rr_ExpenseExampleYear01

$ 163

rr_ExpenseExampleYear03

505

rr_ExpenseExampleYear05

871

rr_ExpenseExampleYear10

1,900

rr_ExpenseExampleNoRedemptionYear01

163

rr_ExpenseExampleNoRedemptionYear03

505

rr_ExpenseExampleNoRedemptionYear05

871

rr_ExpenseExampleNoRedemptionYear10

$ 1,900

rr_AverageAnnualReturnYear01

37.25%

rr_AverageAnnualReturnYear05

12.30%

rr_AverageAnnualReturnYear10

14.50%

Federated Hermes Kaufmann Large Cap Fund | IS

Risk Return Abstract

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)

rr_MaximumDeferredSalesChargeOverOther

none

Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption Fee (as a percentage of amount redeemed, if applicable)

rr_RedemptionFeeOverRedemption

none

rr_ExchangeFeeOverRedemption

none

rr_ManagementFeesOverAssets

0.75%

Distribution (12b-1) Fee

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.18%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.93%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.84%

rr_ExpenseExampleYear01

$ 95

rr_ExpenseExampleYear03

296

rr_ExpenseExampleYear05

515

rr_ExpenseExampleYear10

1,143

rr_ExpenseExampleNoRedemptionYear01

95

rr_ExpenseExampleNoRedemptionYear03

296

rr_ExpenseExampleNoRedemptionYear05

515

rr_ExpenseExampleNoRedemptionYear10

$ 1,143

rr_AnnualReturn2010

22.78%

rr_AnnualReturn2011

(5.90%)

rr_AnnualReturn2012

26.37%

rr_AnnualReturn2013

37.03%

rr_AnnualReturn2014

12.12%

rr_AnnualReturn2015

3.13%

rr_AnnualReturn2016

4.62%

rr_AnnualReturn2017

23.57%

rr_AnnualReturn2018

0.12%

rr_AnnualReturn2019

38.14%

Year to Date Return, Label

rr_YearToDateReturnLabel

The Fund's IS class total return for the nine-month period

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Sep. 30, 2020

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

17.87%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest quarterly return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Mar. 31, 2012

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

21.23%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest quarterly return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2011

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(18.40%)

rr_AverageAnnualReturnYear01

38.14%

rr_AverageAnnualReturnYear05

13.02%

rr_AverageAnnualReturnYear10

15.26%

Federated Hermes Kaufmann Large Cap Fund | R6

Risk Return Abstract

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, as applicable)

rr_MaximumDeferredSalesChargeOverOther

none

Maximum Sales Charge (Load) Imposed on Reinvested Dividends (and other Distributions) (as a percentage of offering price)

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption Fee (as a percentage of amount redeemed, if applicable)

rr_RedemptionFeeOverRedemption

none

rr_ExchangeFeeOverRedemption

none

rr_ManagementFeesOverAssets

0.75%

Distribution (12b-1) Fee

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

0.12%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.87%

Fee Waivers and/or Expense Reimbursements

rr_FeeWaiverOrReimbursementOverAssets

(0.09%)

^[2]

Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements

rr_NetExpensesOverAssets

0.78%

rr_ExpenseExampleYear01

$ 89

rr_ExpenseExampleYear03

278

rr_ExpenseExampleYear05

482

rr_ExpenseExampleYear10

1,073

rr_ExpenseExampleNoRedemptionYear01

89

rr_ExpenseExampleNoRedemptionYear03

278

rr_ExpenseExampleNoRedemptionYear05

482

rr_ExpenseExampleNoRedemptionYear10

$ 1,073

rr_AverageAnnualReturnYear01

38.20%

rr_AverageAnnualReturnYear05

13.08%

rr_AverageAnnualReturnYear10

15.27%

Federated Hermes Kaufmann Large Cap Fund | Return After Taxes on Distributions | IS

Risk Return Abstract

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

36.74%

rr_AverageAnnualReturnYear05

12.19%

rr_AverageAnnualReturnYear10

14.50%

Federated Hermes Kaufmann Large Cap Fund | Return After Taxes on Distributions and Sale of Fund Shares | IS

Risk Return Abstract

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

23.53%

rr_AverageAnnualReturnYear05

10.31%

rr_AverageAnnualReturnYear10

12.74%

Federated Hermes Kaufmann Large Cap Fund | Russell 1000® Growth Index(reflects no deduction for fees, expenses or taxes)

Risk Return Abstract

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

36.39%

rr_AverageAnnualReturnYear05

14.63%

rr_AverageAnnualReturnYear10

15.22%

Federated Hermes Kaufmann Large Cap Fund | Morningstar Large Growth Funds Average

Risk Return Abstract

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

31.90%

^[3]

rr_AverageAnnualReturnYear05

12.10%

^[3]

rr_AverageAnnualReturnYear10

13.40%

^[3]

[1]	The Fund has adopted a Distribution (12b-1) Plan for its A class pursuant to which the A class of the Fund may incur and pay a Distribution (12b-1) Fee of up to a maximum amount of 0.25%. No such fee is currently incurred and paid by the A class of the Fund. The A class of the Fund will not incur and pay such a Distribution (12b-1) Fee until such time as approved by the Fund’s Board of Trustees (the “Trustees”).
[2]	The Adviser and certain of its affiliates on their own initiative have agreed to waive certain amounts of their respective fees and/or reimburse expenses. Effective January 1, 2021, total annual fund operating expenses (excluding acquired fund fees and expenses, dividends and other expenses related to short sales, interest expense, extraordinary expenses and proxy-related expenses paid by the Fund, if any) paid by the Fund’s A, C, R, IS and R6 classes (after the voluntary waivers and/or reimbursements) will not exceed 1.08%, 1.86%, 1.47%, 0.83% and 0.77% (the “Fee Limit”), respectively, up to but not including the later of (the “Termination Date”): (a)January 1, 2022; or (b) the date of the Fund’s next effective Prospectus. While the Adviser and its affiliates currently do not anticipate terminating or increasing these arrangements prior to the Termination Date, these arrangements may only be terminated or the Fee Limit increased prior to the Termination Date with the agreement of the Trustees.
[3]	Morningstar figures represent the average of the total returns reported by all the mutual funds designated by Morningstar as falling into the respective category indicated. They do not reflect sales charges.