XML 87 R200.htm IDEA: XBRL DOCUMENT v3.6.0.2
Label Element Value
Class R3 Shares (NMGRX) | Neuberger Berman Mid Cap Growth Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Fund Summary
Objective [Heading] rr_ObjectiveHeading GOAL
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund seeks growth of capital.
Expense [Heading] rr_ExpenseHeading FEES AND EXPENSES
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
These tables describe the fees and expenses that you may pay if you buy and hold shares of the Fund.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a % of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
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 operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 63% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 63.00%
Expense Example [Heading] rr_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
The expense example can help you compare costs among mutual funds. The example assumes that you invested $10,000 for the periods shown, that you redeemed all of your shares at the end of those periods, that the Fund earned a hypothetical 5% total return each year, and that the Fund’s expenses were those in the table. Actual performance and expenses may be higher or lower.
Strategy [Heading] rr_StrategyHeading PRINCIPAL INVESTMENT STRATEGIES
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
To pursue its goal, the Fund normally invests at least 80% of its net assets in common stocks of mid-capitalization companies, which it defines as those with a total market capitalization within the market capitalization range of the Russell Midcap Index at the time of purchase.

The Fund seeks to reduce risk by diversifying among many companies, sectors and industries.

The Portfolio Manager employs a disciplined investment strategy when selecting growth stocks. Using fundamental research and quantitative analysis, he looks for what he believes to be fast-growing companies with above-average sales and competitive returns on equity relative to their peers. In doing so, the Portfolio Manager analyzes such factors as: financial condition (such as debt to equity ratio); market share and competitive leadership of the company’s products; earnings growth relative to competitors; and market valuation in comparison to a stock’s own historical norms and the stocks of other mid-cap companies.

At times, the Portfolio Manager may emphasize certain sectors that he believes will benefit from market or economic trends.

The Portfolio Manager follows a disciplined selling strategy and may sell a stock when it reaches a target price, if a company’s business fails to perform as expected, or when other opportunities appear more attractive.

The Fund may change its goal without shareholder approval, although it does not currently intend to do so. The Fund will not change its strategy of normally investing at least 80% of its net assets in mid-capitalization companies, without providing shareholders at least 60 days’ notice. This test is applied at the time the Fund invests; later percentage changes caused by a change in Fund assets, market values or company circumstances will not require the Fund to dispose of a holding.
Risk [Heading] rr_RiskHeading PRINCIPAL INVESTMENT RISKS
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
Most of the Fund’s performance depends on what happens in the stock market. The market's behavior can be difficult to predict, particularly in the short term. There can be no guarantee that the Fund will achieve its goal. The Fund may take temporary defensive and cash management positions; in such a case, it will not be pursuing its principal investment strategies.

The Fund is a mutual fund, not a bank deposit, and is not guaranteed or insured by the Federal Deposit Insurance Corporation or any other government agency. The value of your investment may fall, sometimes sharply, and you could lose money by investing in the Fund.

The following risks, which are described in alphabetical order and not in order of importance or potential exposure, can significantly affect the Fund’s performance:

Foreign Exposure Risk. Securities issued by U.S. entities with substantial foreign operations or holdings may involve additional risks relating to political, economic, or regulatory conditions in foreign countries, as well as currency exchange rates.

Growth Stock Risk. Because the prices of most growth stocks are based on future expectations, these stocks tend to be more sensitive than value stocks to bad economic news and negative earnings surprises. Bad economic news or changing investor perceptions may adversely affect growth stocks across several sectors and industries simultaneously.

Issuer-Specific Risk. An individual security may be more volatile, and may perform differently, than the market as a whole.

Market Volatility Risk. Markets may be volatile and values of individual securities and other investments, including those of a particular type, may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment. If the Fund sells a portfolio position before it reaches its market peak, it may miss out on opportunities for better performance.

Mid-Cap Companies Risk. At times, mid-cap companies may be out of favor with investors. Compared to larger companies, mid-cap companies may depend on a more limited management group, may have a shorter history of operations, and may have limited product lines, markets or financial resources. The securities of mid-cap companies are often more volatile and less liquid than the securities of larger companies and may be more affected than other types of securities by the underperformance of a sector or during market downturns.

Operational Risk. The Fund and its service providers, and your ability to transact with the Fund, may be negatively impacted due to operational risks arising from, among other problems, human errors, systems and technology disruptions or failures, or cybersecurity incidents. It is not possible for the Manager or the other Fund service providers to identify all of the operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. Cybersecurity incidents could also affect issuers of securities in which the Fund invests, leading to significant loss of value.

Recent Market Conditions. Since the financial crisis that started in 2008, the U.S. and many foreign economies continue to experience its after-effects, which have resulted, and may continue to result, in slower growth and an unusually high degree of volatility in the financial markets, both domestic and foreign. Because the impact on the markets has been widespread, it may be difficult to identify both risks and opportunities using past models of the interplay of market forces, or to predict the duration of these market conditions. In addition, global economies and financial markets are increasingly interconnected, which increases the possibilities that conditions in one country or region might adversely impact issuers in a different country or region. Official statistics indicate a recent growth rate in China that is significantly lower than that in the early part of the decade. This is adversely affecting worldwide commodity prices and the economies of many countries, especially those that depend heavily on commodity production and/or trade with China. The severity or duration of adverse economic conditions may also be affected by policy changes made by governments or quasi-governmental organizations.

High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. Interest rates have been unusually low in recent years in the U.S. and abroad. Because there is little precedent for this situation, it is difficult to predict the impact on various markets of a significant rate increase or other significant policy changes, whether brought about by U.S. policy makers or by dislocations in world markets.

In addition, political and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy, perhaps suddenly and to a significant degree. The results of the recent U.S. presidential election appear to herald significant changes in certain policies, which may result in lower corporate taxes, higher levels of public debt, higher interest rates, more restrictions on international trade, and less stringent prudential regulation of certain players in the financial markets.

Redemption Risk. The Fund may experience periods of heavy redemptions that could cause the Fund to sell assets at inopportune times or at a loss or depressed value. Redemption risk is heightened during periods of declining or illiquid markets. Heavy redemptions could hurt the Fund’s performance.

Risk Management. Risk is an essential part of investing. No risk management program can eliminate the Fund’s exposure to adverse events; at best, it may only reduce the possibility that the Fund will be affected by such events, and especially those risks that are not intrinsic to the Fund’s investment program.

Risk of Increase in Expenses. A decline in the Fund’s average net assets during the current fiscal year due to market volatility or other factors could cause the Fund’s expenses for the current fiscal year to be higher than the expense information presented in “Fees and Expenses.”

Sector Risk. From time to time, based on market or economic conditions, the Fund may have significant positions in one or more sectors of the market. To the extent the Fund invests more heavily in particular sectors, its performance will be especially sensitive to developments that significantly affect those sectors. Individual sectors may be more volatile, and may perform differently, than the broader market. The industries that constitute a sector may all react in the same way to economic, political or regulatory events.

Valuation Risk. The Fund may not be able to sell an investment at the price at which the Fund has valued the investment. The Fund’s ability to value its investments in an accurate and timely manner may be impacted by technological issues and/or errors by third party service providers, such as pricing services or accounting agents.
Risk Lose Money [Text] rr_RiskLoseMoney The value of your investment may fall, sometimes sharply, and you could lose money by investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution The Fund is a mutual fund, not a bank deposit, and is not guaranteed or insured by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading PERFORMANCE
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The following bar chart and table provide an indication of the risks of investing in the Fund. The bar chart shows how the Fund’s performance has varied from year to year. The table next to the bar chart shows what the returns would equal if you averaged out actual performance over various lengths of time and compares the returns with the returns of a broad-based market index and an additional index. The indices, which are described in “Descriptions of Indices” in the prospectus, have characteristics relevant to the Fund's investment strategy.

The following performance is that of the Fund's Investor Class prior to May 27, 2009. Because Investor Class has lower expenses than Class R3, its performance typically would have been better than that of Class R3. Returns would have been lower if the Manager had not reimbursed certain expenses and/or waived a portion of the investment management fees during certain of the periods shown.
  

Past performance (before and after taxes) is not a prediction of future results. Visit www.nb.com or call 800-366-6264 for updated performance information.
Bar Chart [Heading] rr_BarChartHeading YEAR-BY-YEAR % RETURNS AS OF 12/31 EACH YEAR
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Best quarter:    Q1 '12, 14.58%

Worst quarter:    Q4 '08, -23.49%

Year-to-date performance as of 9/30/2016:     3.32%
Bar Chart, Returns for Class Not Offered in Prospectus [Text] rr_BarChartReturnsForClassNotOfferedInProspectus The following performance is that of the Fund's Investor Class prior to May 27, 2009. Because Investor Class has lower expenses than Class R3, its performance typically would have been better than that of Class R3
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-date performance as of 9/30/2016:
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2016
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.32%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best quarter:
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2012
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 14.58%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst quarter:
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Dec. 31, 2008
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (23.49%)
Performance Table Heading rr_PerformanceTableHeading AVERAGE ANNUAL TOTAL % RETURNS AS OF 12/31/15
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock
After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of Fund shares.
Class R3 Shares (NMGRX) | Neuberger Berman Mid Cap Growth Fund | Russell Midcap® Growth Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.20%)
5 Years rr_AverageAnnualReturnYear05 11.54%
10 Years rr_AverageAnnualReturnYear10 8.16%
Class R3 Shares (NMGRX) | Neuberger Berman Mid Cap Growth Fund | Russell Midcap® Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (2.44%)
5 Years rr_AverageAnnualReturnYear05 11.44%
10 Years rr_AverageAnnualReturnYear10 8.00%
Class R3 Shares (NMGRX) | Neuberger Berman Mid Cap Growth Fund | Class R3  
Risk/Return: rr_RiskReturnAbstract  
Shareholder Fees (fees paid directly from your investment) rr_ShareholderFeeOther none
Management fees rr_ManagementFeesOverAssets 0.76%
Distribution and/or shareholder service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets 0.50%
Other expenses rr_OtherExpensesOverAssets 0.13%
Total annual operating expenses rr_ExpensesOverAssets 1.39%
Fee waiver and/or expense reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.02%
Total annual operating expenses after fee waiver and/or expense reimbursement rr_NetExpensesOverAssets 1.37% [1]
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination Aug. 31, 2020
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 139
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 434
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 755
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 1,663
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart shows how the Fund’s performance has varied from year to year. The table next to the bar chart shows what the returns would equal if you averaged out actual performance over various lengths of time and compares the returns with the returns of a broad-based market index and an additional index.
Performance Additional Market Index [Text] rr_PerformanceAdditionalMarketIndex The table next to the bar chart shows what the returns would equal if you averaged out actual performance over various lengths of time and compares the returns with the returns of a broad-based market index and an additional index.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 800-366-6264
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.nb.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not a prediction of future results.
Annual Return 2006 rr_AnnualReturn2006 14.59%
Annual Return 2007 rr_AnnualReturn2007 21.59%
Annual Return 2008 rr_AnnualReturn2008 (40.98%)
Annual Return 2009 rr_AnnualReturn2009 29.01%
Annual Return 2010 rr_AnnualReturn2010 27.48%
Annual Return 2011 rr_AnnualReturn2011 1.02%
Annual Return 2012 rr_AnnualReturn2012 11.86%
Annual Return 2013 rr_AnnualReturn2013 31.47%
Annual Return 2014 rr_AnnualReturn2014 7.27%
Annual Return 2015 rr_AnnualReturn2015 0.96%
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate 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.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred After-tax returns are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher Return After Taxes on Distributions and Sale of Fund Shares may be higher than other returns for the same period due to a tax benefit of realizing a capital loss upon the sale of Fund shares.
1 Year rr_AverageAnnualReturnYear01 0.96%
5 Years rr_AverageAnnualReturnYear05 9.98%
10 Years rr_AverageAnnualReturnYear10 8.08%
Class R3 Shares (NMGRX) | Neuberger Berman Mid Cap Growth Fund | Class R3 | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 (0.24%)
5 Years rr_AverageAnnualReturnYear05 8.88%
10 Years rr_AverageAnnualReturnYear10 7.55%
Class R3 Shares (NMGRX) | Neuberger Berman Mid Cap Growth Fund | Class R3 | After Taxes on Distributions and Sale of Fund Shares  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 1.48%
5 Years rr_AverageAnnualReturnYear05 7.77%
10 Years rr_AverageAnnualReturnYear10 6.53%
[1] Neuberger Berman Investment Advisers LLC ("Manager") has contractually undertaken to waive and/or reimburse certain fees and expenses of Class R3 so that the total annual operating expenses (excluding interest, taxes, brokerage commissions, acquired fund fees and expenses, dividend and interest expenses relating to short sales, and extraordinary expenses, if any) are limited to 1.36% of average net assets. This undertaking lasts until 8/31/2020 and may not be terminated during its term without the consent of the Board of Trustees. The Fund has agreed that Class R3 will repay the Manager for fees and expenses waived or reimbursed for that class provided that repayment does not cause annual operating expenses to exceed 1.36% of its average net assets. Any such repayment must be made within three years after the year in which the Manager incurred the expense.