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Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX)  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk/Return [Heading] oef_RiskReturnHeading Neuberger Real Estate Fund Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX)
Objective [Heading] oef_ObjectiveHeading GOAL
Objective, Primary [Text Block] oef_ObjectivePrimaryTextBlock
The Fund seeks total return through investment in real estate securities, emphasizing both capital appreciation and current income.
Expense Heading [Optional Text] oef_ExpenseHeading Fees and Expenses
Expense Narrative [Text Block] oef_ExpenseNarrativeTextBlock
These tables describe the fees and expenses that you may pay if you buy, hold or sell shares of the Fund. Under the Fund’s policies, you may qualify for initial sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Neuberger funds. Certain financial intermediaries have sales charges and/or policies and procedures regarding sales charge waivers applicable to their customers that differ from those described below. More information about these and other discounts is available from your financial intermediary, in “Sales Charge Reductions and Waivers” on page 213 in the Fund’s prospectus, and in Appendix A to the Fund’s prospectus. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below. 
Shareholder Fees Caption [Optional Text] oef_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Optional Text] oef_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a % of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination oef_FeeWaiverOrReimbursementOverAssetsDateOfTermination Aug. 31, 2029
Expenses Deferred Charges [Text Block] oef_ExpensesDeferredChargesTextBlock For Class A shares, a contingent deferred sales charge (“CDSC”) of 1.00% applies on certain redemptions made within 18 months following purchases of $1 million or more made without an initial sales charge. For Class C shares, the CDSC is eliminated one year after purchase.
Expense Breakpoint Discounts [Text] oef_ExpenseBreakpointDiscounts Under the Fund’s policies, you may qualify for initial sales charge discounts if you and your family invest, or agree to invest in the future, at least $50,000 in Neuberger funds. Certain financial intermediaries have sales charges and/or policies and procedures regarding sales charge waivers applicable to their customers that differ from those described below. More information about these and other discounts is available from your financial intermediary, in “Sales Charge Reductions and Waivers” on page 213 in the Fund’s prospectus, and in Appendix A to the Fund’s prospectus.
Expense Breakpoint, Minimum Investment Required [Amount] oef_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Expense Example [Heading] oef_ExpenseExampleHeading Expense Example
Expense Example Narrative [Text Block] oef_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. For Class A and Institutional Class shares, your costs would be the same whether you sold your shares or continued to hold them at the end of each period. Actual performance and expenses may be higher or lower. 
Expense Example by, Year, Caption [Text] oef_ExpenseExampleByYearCaption assuming redemption
Expense Example, No Redemption, By Year, Caption [Text] oef_ExpenseExampleNoRedemptionByYearCaption assuming no redemption
Portfolio Turnover [Heading] oef_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] oef_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 57% of the average value of its portfolio.
Portfolio Turnover, Rate oef_PortfolioTurnoverRate 57.00%
Strategy [Heading] oef_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock
To pursue its goal, the Fund normally invests at least 80% of its net assets in equity securities issued by real estate investment trusts (“REITs”) and common stocks and other securities issued by other real estate companies. The Fund defines a real estate company as one that derives at least 50% of its revenue from, or has at least 50% of its assets in, real estate.
The Fund may invest up to 20% of its net assets in debt securities of real estate companies. These debt securities can be either investment grade securities or below investment grade securities (commonly known as “junk bonds”), provided that, at the time of investment, they are rated at least B by S&P Global Ratings or Moody’s Investors Service, Inc. (or comparably rated by at least one independent credit rating agency) or, if unrated, are determined by the Portfolio Managers to be of comparable quality. The Fund does not normally intend to continue holding securities that are in default or have defaulted with respect to the payment of interest or repayment of principal, but may do so depending on market conditions.
The Portfolio Managers make investment decisions through a fundamental analysis of each company. The Portfolio Managers review each company’s current financial condition and industry position, as well as economic and market conditions. In doing so, they evaluate the company’s growth potential, earnings estimates and quality of management, as well as other factors. In an effort to achieve its goal, the Fund may engage in active and frequent trading.
As part of their fundamental investment analysis the Portfolio Managers consider environmental, social and governance factors they believe are financially material to individual investments, where applicable. While this analysis is inherently subjective and may be informed by both internally generated and third-party metrics, data and other information, the Portfolio Managers believe that the consideration of financially material environmental, social and governance factors, alongside traditional financial metrics, may enhance the Fund’s overall investment process. The consideration of environmental, social and governance factors does not apply to certain instruments, such as certain derivative instruments, other registered investment companies, cash and cash equivalents. The consideration of environmental, social and governance factors as part of the investment process does not mean that the Fund pursues a specific “impact” or “sustainable” investment strategy.
The Fund is a non-diversified fund, which means that it can invest more of its assets in fewer companies than a diversified fund. The Fund concentrates its assets in the real estate industry. The Fund may at times emphasize particular sub-sectors of the real estate business—for example, apartments, regional malls, offices, infrastructure, industrial, and health care.
Some of the REITs and other real estate securities in which the Fund invests may be preferred stock, which receives preference in the payment of dividends.
The Fund normally seeks to invest for the long-term, but it may sell securities regardless of how long they have been held if the Portfolio Managers find an opportunity they believe is more compelling, or if the Portfolio Managers’ outlook on the company or the market changes, if a stock reaches a target price, if a company’s business fails to perform as expected, or when other opportunities appear more attractive.
The Fund will not change its strategy of normally investing at least 80% of its net assets in equity securities issued by REITs and common stocks and other securities issued by other real estate companies, without providing shareholders at least 60 days’ notice. This test and the test of whether a company is a real estate company are 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.
Strategy Portfolio Concentration [Text] oef_StrategyPortfolioConcentration To pursue its goal, the Fund normally invests at least 80% of its net assets in equity securities issued by real estate investment trusts (“REITs”) and common stocks and other securities issued by other real estate companies. The Fund defines a real estate company as one that derives at least 50% of its revenue from, or has at least 50% of its assets in, real estate.
Bar Chart and Performance Table [Heading] oef_BarChartAndPerformanceTableHeading PERFORMANCE
Performance Narrative [Text Block] oef_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, as represented by the performance of the Fund's Institutional Class. The returns in the bar chart do not reflect any applicable sales charges. If sales charges were reflected, returns would be lower than those shown. The table below 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 additional indices. The broad-based market index is required by regulation. The additional index or indices have characteristics relevant to the Fund’s investment strategy. The indices are described in “Descriptions of Indices” in the prospectus. Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
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.
Performance Information Illustrates Variability of Returns [Text] oef_PerformanceInformationIllustratesVariabilityOfReturns The bar chart shows how the Fund’s performance has varied from year to year, as represented by the performance of the Fund's Institutional Class.
Performance Additional Market Index [Text] oef_PerformanceAdditionalMarketIndex The table below 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 additional indices.
Performance Availability Phone [Text] oef_PerformanceAvailabilityPhone 800-366-6264
Performance Availability Website Address [Text] oef_PerformanceAvailabilityWebSiteAddress www.nb.com
Performance Past Does Not Indicate Future [Text] oef_PerformancePastDoesNotIndicateFuture Past performance (before and after taxes) is not a prediction of future results.
Bar Chart [Heading] oef_BarChartHeading year-by-year % Returns as of 12/31 each year
Bar Chart Does Not Reflect Sales Loads [Text] oef_BarChartDoesNotReflectSalesLoads The returns in the bar chart do not reflect any applicable sales charges. If sales charges were reflected, returns would be lower than those shown.
Bar Chart Closing [Text Block] oef_BarChartClosingTextBlock
Best quarter:
Q4 2023
18.79%
Worst quarter:
Q1 2020
-17.57%
Year to Date performance as of:
09/30/2025
0.77%
Year to Date Return, Label [Optional Text] oef_YearToDateReturnLabel Year to Date performance as of:
Bar Chart, Year to Date Return, Date oef_BarChartYearToDateReturnDate Sep. 30, 2025
Bar Chart, Year to Date Return oef_BarChartYearToDateReturn 0.77%
Highest Quarterly Return, Label [Optional Text] oef_HighestQuarterlyReturnLabel Best quarter:
Highest Quarterly Return, Date oef_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Highest Quarterly Return oef_BarChartHighestQuarterlyReturn 18.79%
Lowest Quarterly Return, Label [Optional Text] oef_LowestQuarterlyReturnLabel Worst quarter:
Lowest Quarterly Return, Date oef_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return oef_BarChartLowestQuarterlyReturn (17.57%)
Performance Table Heading oef_PerformanceTableHeading average annual total % returns as of 12/31/2024 
Performance Table Does Reflect Sales Loads oef_PerformanceTableDoesReflectSalesLoads Unlike the returns in the bar chart, the returns in the table reflect the maximum applicable sales charges.
Index No Deduction for Fees, Expenses, or Taxes [Text] oef_IndexNoDeductionForFeesExpensesTaxes reflects no deduction for fees, expenses or taxes
Performance Table Uses Highest Federal Rate oef_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 oef_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 One Class of after Tax Shown [Text] oef_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown for Institutional Class shares only and after-tax returns for other classes may vary.
Performance Table Explanation after Tax Higher oef_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.
Performance Table Closing [Text Block] oef_PerformanceTableClosingTextBlock
After-tax returns are shown for Institutional Class shares only and after-tax returns for other classes may vary. 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.
Average Annual Return, Caption [Optional Text] oef_AverageAnnualReturnCaption Real Estate Fund
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Risk Lose Money [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock The value of your investment may fall, sometimes sharply, and you could lose money by investing in the Fund.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock 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.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Risk Nondiversified Status [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock The Fund is classified as non-diversified. As such, the percentage of the Fund’s assets invested in any single issuer or a few issuers is not limited as much as it is for a fund classified as diversified. Investing a higher percentage of its assets in any one or a few issuers could increase the Fund’s risk of loss and its share price volatility, because the value of its shares would be more susceptible to adverse events affecting those issuers.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | All Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Most of the Fund’s performance depends on what happens in the stock and real estate markets, the Portfolio Managers' evaluation of those developments, and the success of the Portfolio Managers in implementing the Fund's investment strategies. The markets' 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; to the extent it does, it will not be pursuing its principal investment strategies.
The actual risk exposure taken by the Fund in its investment program will vary over time, depending on various factors including the Portfolio Managers' evaluation of issuer, political, regulatory, market, or economic developments. There can be no guarantee
that the Portfolio Managers will be successful in their attempts to manage the risk exposure of the Fund or will appropriately evaluate or weigh the multiple factors involved in investment decisions, including issuer, market and/or instrument-specific analysis, valuation and financially material environmental, social and governance factors.
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.
Each of the following risks, which are described in alphabetical order and not in order of any presumed importance, can significantly affect the Fund’s performance. The relative importance of, or potential exposure as a result of, each of these risks will vary based on market and other investment-specific considerations.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Credit Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Credit Risk. Credit risk is the risk that issuers, guarantors, or insurers may fail, or become less able or unwilling to pay interest and/or principal when due. Changes in the actual or perceived creditworthiness of an issuer or a downgrade or default affecting any of the Fund’s securities could affect the Fund’s performance by affecting the credit quality or value of the Fund’s securities. Generally, the longer the maturity and the lower the credit quality of a security, the more sensitive it is to credit risk.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Dividend Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Dividend Risk. There is no guarantee that the companies in which the Fund invests will declare dividends in the future or that dividends, if declared, will remain at current levels or increase over time. Changes in a company’s dividend policies may negatively impact the Fund. Securities that pay dividends may be sensitive to changes in interest rates, and as interest rates rise or fall, the prices of such securities may be impacted. During a broad market advance, securities that pay dividends may not appreciate as much as securities that do not pay dividends.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | High Portfolio Turnover Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
High Portfolio Turnover Risk. The Fund may engage in active and frequent trading and may have a high portfolio turnover rate, which may increase the Fund’s transaction costs, may adversely affect the Fund’s performance and may generate a greater amount of capital gain distributions to shareholders than if the Fund had a low portfolio turnover rate.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Interest Rate Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Interest Rate Risk. In general, the value of investments with interest rate risk, such as debt securities, will move in the direction opposite to movements in interest rates. If interest rates rise, the value of such securities may decline. Typically, the longer the maturity or duration of a debt security, the greater the effect a change in interest rates could have on the security's price. Thus, the sensitivity of the Fund’s debt securities to interest rate risk will increase with any increase in the duration of those securities.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Issuer-Specific Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Issuer-Specific Risk. An individual security may be more volatile, and may perform differently, than the market as a whole.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Lower-Rated Debt Securities Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Lower-Rated Debt Securities Risk. Lower-rated debt securities (commonly known as “junk bonds”) and unrated debt securities determined to be of comparable quality involve greater risks than investment grade debt securities. Such securities may fluctuate more widely in price and yield and may fall in price, sometimes abruptly, due to changes in interest rates, market activity, economic conditions, such as when economic conditions are deteriorating or are expected to deteriorate, or other factors. These securities may be less liquid, may require a greater degree of judgment to establish a price and may be difficult to sell at the time and price the Fund desires. Lower-rated debt securities are considered by the major rating agencies to be predominantly speculative with respect to the issuer’s continuing ability to pay principal and interest and carry a greater risk that the issuer of such securities will default in the timely payment of principal and interest. Issuers of securities that are in default or have defaulted may fail to resume principal or interest payments, in which case the Fund may lose its entire investment. The creditworthiness of issuers of these securities may be more complex to analyze than that of issuers of investment grade debt securities, and the overreliance on credit ratings may present additional risks.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Market Capitalization Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Market Capitalization Risk. To the extent the Fund invests in securities of small-, mid-, or large-cap companies, it takes on the associated risks. At times, any of these market capitalizations may be out of favor with investors. Compared to small- and mid-cap companies, large-cap companies may be unable to respond as quickly to changes and opportunities and may grow at a slower rate. Compared to large-cap companies, small- and mid-cap companies may depend on a more limited management group, may have a shorter history of operations, less publicly available information, less stable earnings and limited product lines, markets or financial resources. The securities of small- and mid-cap companies are often more volatile, which at times can be rapid and unpredictable, 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, during market downturns, by adverse publicity and investor perceptions, by interest rate changes and by government regulation.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Market Volatility Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
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 or publicity. Geopolitical and other risks, including environmental and public health risks may add to instability in world economies and markets generally. Changes in value may be temporary or may last for extended periods. If the Fund sells a portfolio position before it reaches its market peak, it may miss out on opportunities for better performance.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Non-Diversified Fund Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Non-Diversified Fund Risk. The Fund is classified as non-diversified. As such, the percentage of the Fund’s assets invested in any single issuer or a few issuers is not limited as much as it is for a fund classified as diversified. Investing a higher percentage of its assets in any one or a few issuers could increase the Fund’s risk of loss and its share price volatility, because the value of its shares would be more susceptible to adverse events affecting those issuers.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Preferred Securities Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Preferred Securities Risk. Preferred securities, which are a form of hybrid security (i.e., a security with both debt and equity characteristics), may pay fixed or adjustable rates of return. Preferred securities are subject to issuer-specific and market risks applicable generally to equity securities, however, unlike common stocks, participation in the growth of an issuer may be limited. Distributions on preferred securities are generally payable at the discretion of the issuer’s board of directors and after the company makes required payments to holders of its debt securities. For this reason, preferred securities are subject to greater credit, interest, and liquidation risk than debt securities, and the value of preferred securities will usually react more strongly than debt securities to actual or perceived changes in the company’s financial condition or prospects. Preferred securities of smaller companies may be more vulnerable to adverse developments than preferred securities of larger companies. Preferred securities may be less liquid than common stocks.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Recent Market Conditions [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Recent Market Conditions. Both U.S. and international markets have experienced significant volatility in recent years. As a result of such volatility, investment returns may fluctuate significantly. National economies are substantially interconnected, as are global financial markets, which creates the possibility that conditions in one country or region might adversely impact issuers in a different country or region. However, the interconnectedness of economies and/or markets may be diminishing or changing, which may impact such economies and markets in ways that cannot be foreseen at this time.
Some countries, including the U.S., have adopted more protectionist trade policies, which is a trend that appears to be continuing globally. Slowing global economic growth, the rise in protectionist trade policies, inflationary pressures, changes to some major international trade and security agreements, risks associated with the trade and security agreement between countries and regions, including the U.S. and other foreign nations, political or economic dysfunction within some countries or regions, including the U.S., and dramatic changes in consumer sentiment, commodity prices and currency values could affect the economies and markets of many nations, including the U.S., in ways that cannot necessarily be foreseen at the present time and may create significant volatility in the markets. In addition, these policies, including the impact on the U.S. dollar, may decrease foreign demand for U.S. assets, which could have a negative impact on certain issuers and/or industries.
The Federal Reserve and certain foreign central banks have started to lower interest rates, though economic or other factors, such as inflation, could stop such changes. It is difficult to accurately predict the pace at which interest rates might change, the timing, frequency or magnitude of any such changes in interest rates, or when such changes might stop or again reverse course. Additionally, various economic and political factors could cause the Federal Reserve or other foreign central banks to change their approach in the future and such actions may result in an economic slowdown both in the U.S. and abroad. Unexpected changes in interest rates could lead to significant market volatility or reduce liquidity in certain sectors of the market. Deteriorating economic fundamentals may, in turn, increase the risk of default or insolvency of particular issuers, negatively impact market value, cause credit spreads to widen, and reduce bank balance sheets. Any of these could cause an increase in market volatility, reduce liquidity across various markets or decrease confidence in the markets.
Regulators in the U.S. have adopted a number of changes to regulations involving the markets and issuers, some of which apply to the Fund. The full effect of such regulations is not currently known and certain changes to regulation could limit the Fund’s ability to pursue its investment strategies or make certain investments, may make it more costly for it to operate, or adversely impact performance. Additionally, it is possible that such regulations could be further revised or rescinded, which creates material uncertainty on their impact to the Fund.
Advancements in technology, including advanced development and increased regulation of artificial intelligence, may adversely impact market movements and liquidity. As artificial intelligence is used more widely, which can occur relatively rapidly, the profitability and growth of certain issuers and industries may be negatively impacted in ways that cannot be foreseen and could adversely impact its performance.
Tensions, war, or open conflict between nations, such as between Russia and Ukraine, in the Middle East, or in eastern Asia could affect the economies of many nations, including the United States. The duration of ongoing hostilities and any sanctions and
related events cannot be predicted. Those events present material uncertainty and risk with respect to markets globally and the performance of the Fund and its investments or operations could be negatively impacted.
High public debt in the U.S. and other countries creates ongoing systemic and market risks and policymaking uncertainty. There is no assurance that the U.S. Congress will act to raise the nation’s debt ceiling; a failure to do so could cause market turmoil and substantial investment risks that cannot now be fully predicted. Unexpected political, regulatory 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.
Global climate change can have potential effects on property and security values. Certain issuers, industries and regions may be adversely affected by the impact of climate change in ways that cannot be foreseen. The impact of legislation, regulation and international accords related to climate change, including any direct or indirect consequences that may not be foreseen, may negatively impact certain issuers, industries and regions.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Redemption Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Redemption Risk. The Fund may experience periods of large or frequent redemptions that could cause the Fund to sell assets at inopportune times, which could have a negative impact on the Fund’s overall liquidity, or at a loss or depressed value. Redemption risk is greater to the extent that one or more investors or intermediaries control a large percentage of investments in the Fund and the risk is heightened during periods of declining or illiquid markets. Large redemptions could hurt the Fund’s performance, increase transaction costs, and create adverse tax consequences.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | REITs and Other Real Estate Companies Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
REITs and Other Real Estate Companies Risk. REITs and other real estate company securities are subject to risks similar to those of direct investments in real estate and the real estate industry in general, including, among other risks: general and local economic conditions; changes in interest rates; declines in property values; defaults by mortgagors or other borrowers and tenants; increases in property taxes and other operating expenses; overbuilding in their sector of the real estate market; fluctuations in rental income; lack of availability of mortgage funds or financing; extended vacancies of properties, especially during economic downturns; changes in tax and regulatory requirements; losses due to environmental liabilities; casualty or condemnation losses; changing social trends regarding working arrangements; or other economic, social, political, or regulatory matters affecting the real estate industry. REITs also are dependent upon the skills and creditworthiness of their managers, subject to heavy cash flow dependency or self-liquidation and generally not diversified.
Regardless of where a REIT is organized or traded, its performance may be affected significantly by events in the region where its properties are located. Domestic REITs could be adversely affected by failure to qualify for tax-free “pass-through” of distributed net investment income and net realized gains under the Internal Revenue Code of 1986, as amended, (“Code”) or to maintain their exemption from registration under the Investment Company Act of 1940, as amended. The value of REIT common shares may decline when interest rates rise. REITs and other real estate company securities tend to be small- to mid-cap securities and are subject to the risks of investing in small- to mid-cap securities.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Sector Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Sector Risk. Although the Fund will not invest in real estate directly, because it concentrates its assets in the real estate industry your investment in the Fund will be closely linked to the performance of the real estate markets and the value of the Fund’s shares may change at different rates compared to the value of shares of a fund with investments in a mix of different sectors or industries.
The Fund may at times emphasize particular sub-sectors of the real estate business—for example, apartments, regional malls, offices, infrastructure, industrial, and health care. As such, the Fund’s performance would be especially sensitive to developments that significantly affect those businesses, which can be impacted by legislative or regulatory changes, adverse market conditions and/or increased competition.
Individual sectors or sub-sectors may be more volatile, and may perform differently, than the broader market. The industries that constitute a sector or sub-sector may all react in the same way to economic, political or regulatory events.
A summary of the Fund’s additional principal investment risks is as follows:
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Risk of Increase in Expenses [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
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.”
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Operational and Cybersecurity Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Operational and Cybersecurity Risk. The Fund and its service providers, and your ability to transact with the Fund, may be negatively impacted due to operational matters arising from, among other problems, human errors, processing and communications errors, counterparty and third-party disruptions or errors, systems and technology disruptions or failures, or cybersecurity incidents. Cybersecurity incidents may allow an unauthorized party to gain access to fund assets, customer data, or proprietary information, or cause the Fund or its service providers, as well as the securities trading venues and their service
providers, to suffer data corruption or lose operational functionality, including those related to critical functions. Cybersecurity incidents can result from deliberate attacks or unintentional events. It is not possible for the Manager or the other Fund service providers to identify all of the cybersecurity or other operational risks that may affect the Fund or to develop processes and controls to completely eliminate or mitigate their occurrence or effects. Most issuers in which the Fund invests are heavily dependent on computers for data storage and operations, and require ready access to the internet to conduct their business. Thus, cybersecurity incidents could also affect issuers of securities in which the Fund invests, leading to significant loss of value.
Artificial Intelligence. The Fund and its service providers, including its adviser, may utilize artificial intelligence (“AI”) technologies, including machine learning models and generative AI, to improve operational efficiency and in connection with research. In addition, counterparties used by the Fund may utilize AI in their business activities. While the Manager may restrict certain uses of AI tools, the Fund and its adviser are not in a position to control the use of AI in third-party products or services. The use of AI introduces numerous potential challenges and the use of AI can lead to reputational damage, legal liabilities, and competitive disadvantages, as well as negatively impact business operations, which may occur with or without mismanagement in the use of the AI. AI requires the collection and processing of substantial amounts of data, which poses risks of data inaccuracies, incompleteness, and inherent biases, and which can degrade the technology’s effectiveness and reliability. Such data can include proprietary information, the use of which by AI may be unauthorized and subject to potential liability. Rapid technological advancements further complicate risk predictions, and competitors who adopt AI more swiftly may gain a competitive edge. The complexity and opacity of AI systems raise significant accountability and ethical concerns. AI has enhanced the ability of threat actors to amplify the potency, scale, and speed of cybersecurity attacks. AI’s role in increasing automation raises concerns about job displacement and may lead to economic and social disruptions. The unpredictable nature of AI’s impact on market dynamics complicates traditional risk assessment models, making it challenging to identify risks and opportunities using historical data. Legal and regulatory frameworks governing AI’s use, particularly concerning data privacy and protection, are evolving rapidly. These changes could materially alter how AI is used, which may negatively impact the Fund.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Risk Management [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
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. The Fund could experience losses if judgments about risk prove to be incorrect.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Valuation Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Valuation Risk. The Fund may not be able to sell an investment at the price at which the Fund has valued the investment. Such differences could be significant, particularly for illiquid securities and securities that trade in relatively thin markets and/or markets that experience extreme volatility. If market or other conditions make it difficult to value an investment, the Fund may be required to value such investments using more subjective methods, known as fair value methodologies. Using fair value methodologies to price investments may result in a value that is different from an investment’s most recent price and from the prices used by other funds to calculate their NAVs. The Fund uses pricing services to provide values for certain securities and there is no assurance that the Fund will be able to sell an investment at the price established by such pricing services. 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.
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Neuberger Real Estate Fund Class A  
Prospectus [Line Items] oef_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.75%
Maximum Deferred Sales Charge (as a percentage) oef_MaximumDeferredSalesChargeOverOther 0.00% [1]
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 1.06%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.09%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.40%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.19%)
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 1.21% [2]
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 691
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 937
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 1,243
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 2,109
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Neuberger Real Estate Fund Class C  
Prospectus [Line Items] oef_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 0.00%
Maximum Deferred Sales Charge (as a percentage) oef_MaximumDeferredSalesChargeOverOther 1.00% [1]
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 1.06%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.10%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 2.16%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.20%)
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 1.96% [2]
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 299
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 615
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 1,101
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 2,443
Expense Example, No Redemption, 1 Year oef_ExpenseExampleNoRedemptionYear01 199
Expense Example, No Redemption, 3 Years oef_ExpenseExampleNoRedemptionYear03 615
Expense Example, No Redemption, 5 Years oef_ExpenseExampleNoRedemptionYear05 1,101
Expense Example, No Redemption, 10 Years oef_ExpenseExampleNoRedemptionYear10 $ 2,443
Neuberger Real Estate Fund | Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Neuberger Real Estate Fund Institutional Class  
Prospectus [Line Items] oef_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 0.00%
Maximum Deferred Sales Charge (as a percentage) oef_MaximumDeferredSalesChargeOverOther 0.00% [1]
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.95%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.08%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.03%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.18%)
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.85% [2]
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 87
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 271
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 513
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,208
Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | FTSE Nareit All Equity REITs Index (reflects no deduction for fees, expenses or taxes)  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel FTSE Nareit All Equity REITs Index (reflects no deduction for fees, expenses or taxes)
Average Annual Return, Percent oef_AvgAnnlRtrPct 4.92%
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.29%
Average Annual Return, Percent oef_AvgAnnlRtrPct 5.83%
Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | S&P 500® Index (reflects no deduction for fees, expenses or taxes)  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel S&P 500® Index (reflects no deduction for fees, expenses or taxes)
Average Annual Return, Percent oef_AvgAnnlRtrPct 25.02%
Average Annual Return, Percent oef_AvgAnnlRtrPct 14.53%
Average Annual Return, Percent oef_AvgAnnlRtrPct 13.10%
Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Neuberger Real Estate Fund Class A  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Class A Return Before Taxes
Average Annual Return, Percent oef_AvgAnnlRtrPct (1.22%)
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.23%
Average Annual Return, Percent oef_AvgAnnlRtrPct 5.18%
Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Neuberger Real Estate Fund Class C  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Class C Return Before Taxes
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.05%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.67%
Average Annual Return, Percent oef_AvgAnnlRtrPct 5.01%
Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Neuberger Real Estate Fund Institutional Class  
Prospectus [Line Items] oef_ProspectusLineItems  
Annual Return [Percent] oef_AnnlRtrPct 3.31%
Annual Return [Percent] oef_AnnlRtrPct 4.26%
Annual Return [Percent] oef_AnnlRtrPct 11.93%
Annual Return [Percent] oef_AnnlRtrPct (5.09%)
Annual Return [Percent] oef_AnnlRtrPct 32.03%
Annual Return [Percent] oef_AnnlRtrPct (1.21%)
Annual Return [Percent] oef_AnnlRtrPct 41.97%
Annual Return [Percent] oef_AnnlRtrPct (27.02%)
Annual Return [Percent] oef_AnnlRtrPct 12.02%
Annual Return [Percent] oef_AnnlRtrPct 5.19%
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Institutional Class Return Before Taxes
Average Annual Return, Percent oef_AvgAnnlRtrPct 5.19%
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.82%
Average Annual Return, Percent oef_AvgAnnlRtrPct 6.18%
Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Neuberger Real Estate Fund Institutional Class | After Taxes on Distributions  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Institutional Class Return After Taxes on Distributions
Average Annual Return, Percent oef_AvgAnnlRtrPct 4.28%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.35%
Average Annual Return, Percent oef_AvgAnnlRtrPct 4.21%
Class A Shares (NREAX), Class C Shares (NRECX), Institutional Class Shares (NBRIX) | Neuberger Real Estate Fund Institutional Class | After Taxes on Distributions and Sales  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Institutional Class Return After Taxes on Distributions and Sale of Fund Shares
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.07%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.52%
Average Annual Return, Percent oef_AvgAnnlRtrPct 4.25%
[1] For Class A shares, a contingent deferred sales charge (“CDSC”) of 1.00% applies on certain redemptions made within 18 months following purchases of $1 million or more made without an initial sales charge. For Class C shares, the CDSC is eliminated one year after purchase.
[2] Neuberger Berman Investment Advisers LLC (“Manager”) has contractually undertaken to waive and/or reimburse certain fees and expenses of Class A, Class C and Institutional Class so that the total annual operating expenses (excluding interest, brokerage commissions, acquired fund fees and expenses, taxes including any expenses relating to tax reclaims, dividend and interest expenses relating to short sales, and extraordinary expenses, if any) (“annual operating expenses”) of each class are limited to 1.21%, 1.96% and 0.85% of average net assets, respectively. Each of these undertakings lasts until 8/31/2029 and may not be terminated during its term without the consent of the Board of Trustees. The Fund has agreed that each of Class A, Class C and Institutional Class will repay the Manager for fees and expenses waived or reimbursed for the class provided that repayment does not cause annual operating expenses to exceed 1.21%, 1.96% and 0.85% of the class’ average net assets, respectively. Any such repayment must be made within three years after the year in which the Manager incurred the expense.