v3.26.1
Label Element Value
Lazard US Small Cap Equity Select Portfolio  
Risk/Return: oef_RiskReturnAbstract  
Risk/Return [Heading] oef_RiskReturnHeading Lazard US Small Cap Equity Select Portfolio
Objective [Heading] oef_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] oef_ObjectivePrimaryTextBlock

The Portfolio seeks long-term capital appreciation.
Expense Heading [Optional Text] oef_ExpenseHeading Fees and Expenses
Expense Narrative [Text Block] oef_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Portfolio, a series of The Lazard Funds, Inc. (the “Fund”). You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and the Example below.
Operating Expenses Caption [Optional Text] oef_OperatingExpensesCaption Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination oef_FeeWaiverOrReimbursementOverAssetsDateOfTermination May 1, 2027
Portfolio Turnover [Heading] oef_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] oef_PortfolioTurnoverTextBlock

The Portfolio 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 Portfolio shares are held in a taxable account. These costs, which are not reflected in annual portfolio operating expenses or in the Example, affect the Portfolio’s performance. During the most recent fiscal year, the Portfolio’s portfolio turnover rate was 100% of the average value of its portfolio.
Portfolio Turnover, Rate oef_PortfolioTurnoverRate 100.00%
Expense Example [Heading] oef_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] oef_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated and then hold or redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same, giving effect to the expense limitation agreement in year one only. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] oef_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock

Under normal circumstances, the Portfolio invests at least 80% of its assets in equity securities of small cap U.S. companies. The Investment Manager considers “small cap companies” to be those companies that, at the time of initial purchase by the Portfolio, have market capitalizations within the range of companies included in the Russell 2000® Index (ranging from approximately $4.4 million to $38.0 billion as of March 31, 2026). Equity security investments primarily include common stocks. The Portfolio considers a company or issuer to be a “U.S. company” if: (i) the

company/issuer is organized under the laws of or is domiciled in the U.S. or maintains its principal place of business in the U.S.; (ii) the security, or security of such company/issuer, is traded principally in the U.S.; or (iii) during the most recent fiscal year of the company/issuer, the company/issuer derived at least 50% of its revenues or profits from goods produced or sold, investments made, or services performed in the U.S. or that has at least 50% of its assets in the U.S.

The Investment Manager, through its bottom-up, fundamental research process, invests in companies it believes have strong and/or improving financial productivity and are undervalued based on their earnings, cash flow or asset values.

The Investment Manager focuses on relative value in seeking to construct a diversified portfolio of investments for the Portfolio that maintains sector and industry balance, using investment opportunities identified through bottom-up fundamental research conducted by the Investment Manager’s small cap and global research analysts.

The Portfolio may invest up to 20% of its assets in the securities of larger or smaller U.S. or non-U.S. companies.
Bar Chart and Performance Table [Heading] oef_BarChartAndPerformanceTableHeading Performance Bar Chart and Table
Performance Narrative [Text Block] oef_PerformanceNarrativeTextBlock

The accompanying bar chart and table provide some indication of the risks of investing in Lazard US Small Cap Equity Select Portfolio by showing the Portfolio’s year-by-year performance and its average annual performance compared to that of a broad measure of market performance and an index that is generally more representative of the types of market sectors and/or types of investments in which the Portfolio invests. The bar chart shows how the performance of the Portfolio’s Institutional Shares has varied from year to year over the past 10 calendar years. Effective September 1, 2023, certain changes were made to the Portfolio’s principal investments strategies, including removing mid-capitalization companies from its policy with respect to the investment of 80% of its assets. The Portfolio’s performance information prior to September 1, 2023 relates only to the Portfolio’s prior principal investment strategies. Updated performance information is available at www.lazardassetmanagement.com or by calling (800) 823-6300. The Portfolio’s past performance (before and after taxes) is not necessarily an indication of how the Portfolio will perform in the future.
Performance Availability Phone [Text] oef_PerformanceAvailabilityPhone (800) 823-6300
Performance Availability Website Address [Text] oef_PerformanceAvailabilityWebSiteAddress www.lazardassetmanagement.com
Performance Past Does Not Indicate Future [Text] oef_PerformancePastDoesNotIndicateFuture The accompanying bar chart and table provide some indication of the risks of investing in Lazard US Small Cap Equity Select Portfolio by showing the Portfolio’s year-by-year performance and its average annual performance compared to that of a broad measure of market performance and an index that is generally more representative of the types of market sectors and/or types of investments in which the Portfolio invests. The bar chart shows how the performance of the Portfolio’s Institutional Shares has varied from year to year over the past 10 calendar years. Effective September 1, 2023, certain changes were made to the Portfolio’s principal investments strategies, including removing mid-capitalization companies from its policy with respect to the investment of 80% of its assets. The Portfolio’s performance information prior to September 1, 2023 relates only to the Portfolio’s prior principal investment strategies. Updated performance information is available at www.lazardassetmanagement.com or by calling (800) 823-6300. The Portfolio’s past performance (before and after taxes) is not necessarily an indication of how the Portfolio will perform in the future.
Bar Chart [Heading] oef_BarChartHeading Year-by-Year Total Returns for Institutional Shares As of December 31, 2025
Bar Chart Closing [Text Block] oef_BarChartClosingTextBlock
  

Best Quarter:

 

2020, Q4

23.67%

 

 

Worst Quarter:

2020, Q1

-31.16%
Performance Table Heading oef_PerformanceTableHeading Average Annual Total Returns (for the periods ended December 31, 2025)
Index No Deduction for Fees, Expenses, or Taxes [Text] oef_IndexNoDeductionForFeesExpensesTaxes Russell 3000 Index(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 marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred oef_PerformanceTableNotRelevantToTaxDeferred The after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] oef_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown only for Institutional Shares. After-tax returns of the Portfolio’s other share classes will vary.
Performance Table Narrative oef_PerformanceTableNarrativeTextBlock

After-tax returns are shown only for Institutional Shares. After-tax returns of the Portfolio’s other share classes will vary. After-tax returns are calculated using the historical highest individual marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on the investor’s tax situation and may differ from those shown. The after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.

Lazard US Small Cap Equity Select Portfolio | Principal Investment Risks  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Principal Investment Risks

The value of your investment in the Portfolio will fluctuate, which means you could lose money.
Lazard US Small Cap Equity Select Portfolio | Risk Lose Money [Member]  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

The value of your investment in the Portfolio will fluctuate, which means you could lose money.
Lazard US Small Cap Equity Select Portfolio | Market Risk  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Market Risk: The Portfolio may incur losses due to declines in one or more markets in which it invests. These declines may be the result of, among other things, political, regulatory, market, economic or social developments affecting the relevant market(s). To the extent that such developments impact specific industries, market sectors, countries or geographic regions, the Portfolio’s investments in such industries, market sectors, countries and/or geographic regions can be expected to be particularly affected, especially if such investments are a significant portion of its investment portfolio. In addition, turbulence in financial markets and reduced liquidity in equity, credit and/or fixed income markets may negatively affect many issuers, which could adversely affect the Portfolio. Global economies and financial markets are increasingly interconnected, and conditions and events in one country, region or financial market may adversely impact issuers worldwide. As a result, local, regional or global events such as war or military conflict, acts of terrorism, the spread of infectious illness or other public health issues, social unrest, natural disasters, extreme weather, other geological events, man-made disasters, supply chain disruptions, deflation, inflation, government defaults, government shutdowns, the imposition of sanctions or other similar measures, recessions or other events could have a significant negative impact on global economic and market conditions. For example, a public health or other emergency and aggressive responses taken by many governments or voluntarily imposed by private parties, including closing borders, restricting travel and imposing prolonged quarantines or similar restrictions, as well as the closure of, or operational changes to, many retail and other businesses, may have severe negative impacts on markets worldwide. Additionally, general market conditions may affect the value of a Portfolio’s securities, including changes in interest rates, currency rates or monetary policies. Furthermore, the imposition of tariffs, trade restrictions, currency restrictions or similar actions (or retaliatory measures taken in response to such actions), or the threat or potential of one or more such events and developments, could lead to price volatility and overall declines in the U.S. and global investment markets.
Lazard US Small Cap Equity Select Portfolio | Issuer Risk  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Issuer Risk: The value of a security may decline for a number of reasons which directly relate to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services, as well as the historical and prospective earnings of the issuer and the value of its assets or factors unrelated to the issuer’s value, such as investor perception.
Lazard US Small Cap Equity Select Portfolio | Small and Mid Cap Companies Risk  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Small and Mid Cap Companies Risk: Small and mid cap companies carry additional risks because their earnings tend to be less predictable, their share prices more volatile and their securities less liquid than larger, more established companies. The shares of small and mid cap companies tend to trade less frequently than those of larger companies, which can have an adverse effect on the pricing of these securities and on the ability to sell these securities when the Investment Manager deems it appropriate.
Lazard US Small Cap Equity Select Portfolio | Value Investing Risk  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Value Investing Risk: Value investments are believed by the Investment Manager to be undervalued, but may not realize their perceived value for extended periods of time or may never realize their perceived value. These securities may respond differently to market and other developments than other types of securities.

Non-U.S. Securities Risk: The Portfolio’s performance will be influenced by political, social and economic factors affecting the non-U.S. countries and companies in which the Portfolio invests. Non-U.S. securities carry special risks, such as less developed or less efficient trading markets, political instability, a lack of company information, differing auditing and legal standards, and, potentially, less liquidity. Non-U.S. securities may also subject the Portfolio’s investments to changes in currency rates, which can make the return on an investment increase or decrease, unrelated to the quality or performance of the investment itself. Non-U.S. securities may be subject to economic sanctions or other governmental actions or developments, exchange controls (including repatriation restrictions), confiscations, trade restrictions (including tariffs) or problems related to share registration, trade settlement or asset custody, which could, among other things, effectively restrict or eliminate the Portfolio’s ability to purchase or sell certain foreign securities. To the extent the Portfolio holds securities subject to such actions, the securities may become difficult to value and/or less liquid (or illiquid). In some cases, the securities may become worthless. In addition, as a result of trade restrictions (including tariffs) and other similar governmental actions or developments, the Portfolio may be forced to sell or otherwise dispose of foreign investments at inopportune times or prices. In addition, investments denominated in currencies other than U.S. dollars may experience a decline in value, in U.S. dollar terms, due solely to fluctuations in currency exchange rates. Emerging market countries can generally have economic structures that are less diverse and mature, and political systems that are less stable, than those of developed countries.
Lazard US Small Cap Equity Select Portfolio | Securities Selection Risk  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

Securities Selection Risk: Securities and other investments selected by the Investment Manager for the Portfolio may not perform to expectations. This could result in the Portfolio’s underperformance compared to other funds with similar investment objectives or strategies.
Lazard US Small Cap Equity Select Portfolio | High Portfolio Turnover Risk  
Risk/Return: oef_RiskReturnAbstract  
Risk [Text Block] oef_RiskTextBlock

High Portfolio Turnover Risk: The Portfolio’s investment strategy may involve high portfolio turnover (such as 100% or more). A portfolio turnover rate of 100%, for example, is equivalent to the Portfolio buying and selling all of its securities once during the course of the year. A high portfolio turnover rate could result in high transaction costs and an increase in taxable capital gains distributions to the Portfolio’s shareholders, which will reduce returns to shareholders.
Lazard US Small Cap Equity Select Portfolio | Russell 3000 Index(reflects no deduction for fees, expenses or taxes)  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Russell 3000 Index (reflects no deduction for fees, expenses or taxes)
Average Annual Return, Percent oef_AvgAnnlRtrPct 17.15%
Average Annual Return, Percent oef_AvgAnnlRtrPct 13.15%
Average Annual Return, Percent oef_AvgAnnlRtrPct 14.29%
Lazard US Small Cap Equity Select Portfolio | Russell 2000 Index(reflects no deduction for fees, expenses or taxes)  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Label [Optional Text] oef_AverageAnnualReturnLabel Russell 2000 Index (reflects no deduction for fees, expenses or taxes)
Average Annual Return, Percent oef_AvgAnnlRtrPct 12.81%
Average Annual Return, Percent oef_AvgAnnlRtrPct 6.09%
Average Annual Return, Percent oef_AvgAnnlRtrPct 9.62%
Lazard US Small Cap Equity Select Portfolio | Institutional  
Risk/Return: oef_RiskReturnAbstract  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.75%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.51%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.26%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets 0.31% [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.95%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 97
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 369
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 662
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,495
Highest Quarterly Return, Label [Optional Text] oef_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date oef_BarChartHighestQuarterlyReturnDate Dec. 31, 2020
Highest Quarterly Return oef_BarChartHighestQuarterlyReturn 23.67%
Lowest Quarterly Return, Label [Optional Text] oef_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date oef_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return oef_BarChartLowestQuarterlyReturn (31.16%)
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.46%
Average Annual Return, Percent oef_AvgAnnlRtrPct 4.98%
Average Annual Return, Percent oef_AvgAnnlRtrPct 7.34%
Annual Return [Percent] oef_AnnlRtrPct 16.20%
Annual Return [Percent] oef_AnnlRtrPct 14.20%
Annual Return [Percent] oef_AnnlRtrPct (13.27%)
Annual Return [Percent] oef_AnnlRtrPct 30.00%
Annual Return [Percent] oef_AnnlRtrPct 6.44%
Annual Return [Percent] oef_AnnlRtrPct 19.91%
Annual Return [Percent] oef_AnnlRtrPct (15.23%)
Annual Return [Percent] oef_AnnlRtrPct 10.07%
Annual Return [Percent] oef_AnnlRtrPct 11.21%
Annual Return [Percent] oef_AnnlRtrPct 2.46%
Performance Inception Date oef_PerfInceptionDate Oct. 30, 1991
Lazard US Small Cap Equity Select Portfolio | Institutional | After Taxes on Distributions  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Percent oef_AvgAnnlRtrPct 0.77%
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.64%
Average Annual Return, Percent oef_AvgAnnlRtrPct 5.19%
Lazard US Small Cap Equity Select Portfolio | Institutional | After Taxes on Distributions and Sales  
Risk/Return: oef_RiskReturnAbstract  
Average Annual Return, Percent oef_AvgAnnlRtrPct 1.79%
Average Annual Return, Percent oef_AvgAnnlRtrPct 3.60%
Average Annual Return, Percent oef_AvgAnnlRtrPct 5.44%
Lazard US Small Cap Equity Select Portfolio | Open  
Risk/Return: oef_RiskReturnAbstract  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.75%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.59%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.59%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets 0.39% [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 1.20%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 122
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 464
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 829
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,856
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.26%
Average Annual Return, Percent oef_AvgAnnlRtrPct 4.70%
Average Annual Return, Percent oef_AvgAnnlRtrPct 7.04%
Performance Inception Date oef_PerfInceptionDate Jan. 30, 1997
Lazard US Small Cap Equity Select Portfolio | R6  
Risk/Return: oef_RiskReturnAbstract  
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.75%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.49%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.24%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets 0.34% [1]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 92
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 360
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 648
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 1,470
Average Annual Return, Percent oef_AvgAnnlRtrPct 2.50%
Average Annual Return, Percent oef_AvgAnnlRtrPct 5.05%
Performance Inception Date oef_PerfInceptionDate Jan. 08, 2020
[1] Reflects a contractual agreement by Lazard Asset Management LLC (the “Investment Manager”) to waive its fee and, if necessary, reimburse the Portfolio until May 1, 2027, to the extent Total Annual Portfolio Operating Expenses exceed .95%, 1.20% and .90% of the average daily net assets of the Portfolio’s Institutional Shares, Open Shares and R6 Shares, respectively, exclusive of taxes, brokerage, interest on borrowings, fees and expenses of “Acquired Funds,” fees and expenses related to filing foreign tax reclaims and extraordinary expenses. This expense limitation agreement can only be amended by agreement of the Fund, upon approval by the Fund’s Board of Directors, and the Investment Manager to lower the net amount shown and will terminate automatically in the event of termination of the Management Agreement between the Investment Manager and the Fund, on behalf of the Portfolio.