Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	HARBOR FUNDS
Prospectus Date	rr_ProspectusDate	Mar. 01, 2023
Harbor Capital Appreciation Fund
Risk Return Abstract	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<span style="color:#FFFFFF;font-family:Times New Roman;font-size:18pt;">Harbor Capital Appreciation Fund</span><span style="color:#FFFFFF;font-family:Arial;font-size:16pt;font-weight:bold;">Fund Summary</span>
Objective [Heading]	rr_ObjectiveHeading	<span style="color:#004DD6;font-family:Arial Narrow;font-size:14pt;font-weight:bold;">Investment Objective</span>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund seeks long-term growth of capital.
Expense [Heading]	rr_ExpenseHeading	<span style="color:#004DD6;font-family:Arial Narrow;font-size:14pt;font-weight:bold;">Fees and Expenses of the Fund</span>
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy, hold and sell shares of 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 example below.
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	<span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-weight:bold;">Annual Fund Operating Expenses</span><span style="color:#000000;font-family:Arial Narrow;font-size:9pt;"> (expenses that you pay each year as a percentage of the value of your investment)</span>
Fee Waiver or Reimbursement over Assets, Date of Termination	rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination	<span style="font-family:Times New Roman;font-size:8pt;font-style:italic;">February </span><span style="font-family:Times New Roman;font-size:8pt;font-style:italic;line-height:8.5pt;"> </span><span style="font-family:Times New Roman;font-size:8pt;font-style:italic;">29, 2024</span>
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-weight:bold;margin-left:4pt;">Portfolio Turnover</span>
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when shares of the Fund are held in a taxable account. These costs, which are not reflected in the Annual Fund Operating Expenses or in the Expense Example, do affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 34%.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	34.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	<span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-weight:bold;margin-left:4pt;">Expense Example</span>
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, under these assumptions, your costs would be:
Strategy [Heading]	rr_StrategyHeading	<span style="color:#004DD6;font-family:Arial Narrow;font-size:14pt;font-weight:bold;">Principal Investment Strategy</span>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund invests primarily in equity securities, principally common and preferred stocks, of U.S. companies with market capitalizations of at least $1 billion at the time of purchase and that the Subadvisorconsiders to have above average prospects for growth.The Subadvisor uses a bottom-up approach, researching and evaluating individual companies, to manage the Fund’s portfolio. This research includes visits to companies and discussions with company management.In selecting stocks for the Fund’s portfolio, the Subadvisor looks for companies that it believes have the following financial characteristics:◾Superior absolute and relative earnings growth◾Superior sales growth, improving sales momentum and high levels of unit growth◾High or improving profitability◾Strong balance sheetsIn addition, the Subadvisor looks for companies that have actually achieved or exceeded expected earnings results and, in the opinion of the Subadvisor, are attractively valued relative to their growth prospects.The Subadvisor focuses on stocks of companies that it believes have distinct attributes such as:◾Strong market position with a defensible franchise◾Unique marketing competence◾Strong research and development leading to superior new product flow◾Capable and disciplined managementThe Subadvisor prefers companies that are in the early stages of demonstrating the above financial characteristics and other attributes.The stocks of mid and large cap companies in the Fund’s portfolio are those the Subadvisor expects to maintain or achieve above average earnings growth. As part of its investment process, the Subadvisor considers environmental, social and governance (“ESG”) factors that it believes may have a material impact on an issuer and the value of its securities. As a result, the key ESG considerations may vary depending on the industry, sector, geographic region or other factors and the core business of each issuer. Sector allocations are the outcome of the Subadvisor’s bottom-up investment process and may, from time to time, result in more substantial investments in particular sectors.The Fund may invest up to 20% of its total assets in the securities of foreign issuers, including issuers located or doing business in emerging markets.
Risk [Heading]	rr_RiskHeading	<span style="color:#004DD6;font-family:Arial Narrow;font-size:14pt;font-weight:bold;">Principal Risks</span>
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	There is no guarantee that the investment objective of the Fund will be achieved. Stocks fluctuate in price and the value of your investment in the Fund may go down. This means that you could lose money on your investment in the Fund or the Fund may not perform as well as other investment options. Principal risks impacting the Fund (in alphabetical order after the first three risks) include:Equity Risk: The values of equity or equity-related securities may decline due to general market conditions that are not specifically related to a particular company, such as real or perceived adverse economic conditions, changes in the general outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally. They may also decline due to factors that affect a particular industry or industries, such as labor shortages or increased production costs and competitive conditions within an industry. Equity securities generally have greater price volatility than fixed income securities.Growth Style Risk: Over time, a growth oriented investing style may go in and out of favor, which may cause the Fund to underperform other equity funds that use different investing styles.Market Risk: Securities markets are volatile and can decline significantly in response to adverse market, economic, political, regulatory or other developments, which may lower the value of securities held by the Fund, sometimes rapidly or unpredictably. Events such as war, acts of terrorism, social unrest, natural disasters, recessions, inflation, rapid interest rate changes, supply chain disruptions, sanctions, the spread of infectious illness or other public health threats could also significantly impact the Fund and its investments.Depositary Receipts Risk: Depositary receipts are certificates evidencing ownership of shares of a foreign issuer. These certificates are issued by depository banks and generally trade on an established market in the U.S. or elsewhere. The underlying shares are held in trust by a custodian bank or similar financial institution. The depository bank may not have physical custody of the underlying securities at all times and may charge fees for various services, including forwarding dividends and interest and corporate actions. Depositary receipts are alternatives to directly purchasing the underlying foreign securities in their national markets and currencies. Depositary receipts are subject to the risks associated with investing directly in foreign securities.ESG Factors Risk: The consideration of ESG factors by the Subadvisor and/or Advisor, as applicable, could cause the Fund to perform differently than other funds. ESG factors are not the only consideration used by the Subadvisor and/or Advisor, as applicable, in making investment decisions for the Fund and the Fund may invest in a company that scores poorly on ESG factors if it scores well on other criteria. ESG factors may not be considered for every investment decision.Foreign Securities Risk: Because the Fund may invest in securities of foreign issuers, an investment in the Fund is subject to special risks in addition to those of U.S. securities. These risks include heightened political and economic risks, greater volatility, currency fluctuations, higher transaction costs, delayed settlement, possible foreign controls on investment, possible sanctions by governmental bodies of other countries and less stringent investor protection and disclosure standards of foreign markets. Foreign securities are sometimes less liquid and harder to value than securities of U.S. issuers. These risks are more significant for issuers in emerging market countries. Global economies and financial markets are becoming increasingly interconnected, and conditions and events in one country, region or financial market may adversely impact issuers in a different country, region or financial market.Issuer Risk: An adverse event affecting a particular issuer in which the Fund is invested, such as an unfavorable earnings report, may depress the value of that issuer’s stock, sometimes rapidly or unpredictably.Large Cap Risk: Large cap stocks may fall out of favor relative to small or mid cap stocks, which may cause the Fund to underperform other equity funds that focus on small or mid cap stocks.Mid Cap Risk: The Fund’s performance may be more volatile because it invests in mid cap stocks. Mid cap companies may have limited product lines, markets and financial resources. Securities of mid cap companies are usually less stable in price and less liquid than those of larger, more established companies. Additionally, mid cap stocks may fall out of favor relative to small or large cap stocks, which may cause the Fund to underperform other equity funds that focus on small or large cap stocks.Preferred Stock Risk: Preferred stocks in which the Fund may invest are sensitive to interest rate changes, and are also subject to equity risk, which is the risk that stock prices will fall over short or extended periods of time. The rights of preferred stocks on the distribution of a company’s assets in the event of a liquidation are generally subordinate to the rights associated with a company’s debt securities.Sector Risk: Because the Fund may, from time to time, be more heavily invested in particular sectors, the value of its shares may be especially sensitive to factors and economic risks that specifically affect those sectors. As a result, the Fund’s share price may fluctuate more widely than the value of shares of a mutual fund that invests in a broader range of sectors.Selection Risk: The Subadvisor’s judgment about the attractiveness, value and growth potential of a particular security may be incorrect.  The Subadvisor and/or Advisor, as applicable, potentially will be prevented from executing investment decisions at an advantageous time or price as a result of domestic or global market disruptions, particularly disruptions causing heightened market volatility and reduced market liquidity, as well as increased or changing regulations.  Thus, investments that the Subadvisor and/or Advisor, as applicable, believes represent an attractive opportunity or in which the Fund seeks to obtain exposure may be unavailable entirely or in the specific quantities or prices sought by the Subadvisor and/or Advisor, as applicable, and the Fund may need to obtain the exposure through less advantageous or indirect investments or forgo the investment at the time.
Risk Lose Money [Text]	rr_RiskLoseMoney	<span style="color:#000000;font-family:Times New Roman;font-size:9pt;">This means that you could </span><span style="color:#000000;font-family:Times New Roman;font-size:9pt;">lose money on your investment in the Fund or the Fund may not perform as well as other investment options.</span>
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	<span style="color:#004DD6;font-family:Arial Narrow;font-size:14pt;font-weight:bold;">Performance</span>
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and tables are intended to help you understand the risks and potential rewards of investing in the Fund. The bar chart shows how the performance of the Fund’s Institutional Class has varied from one calendar year to another over the periods shown. The table shows how the Fund’s average annual total returns  of the share classes presented compared with those of the Fund’s benchmark index and other comparative indices, which include securities with investment characteristics similar to those held by the Fund. Please note that the Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. To obtain updated performance information please visit the Fund’s website at harborcapital.com or call 800-422-1050.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	<span style="color:#000000;font-family:Times New Roman;font-size:9pt;">The bar chart shows how the performance of the Fund’s </span><span style="color:#000000;font-family:Times New Roman;font-size:9pt;">Institutional Class has varied from one calendar year to another over the periods shown. The table shows how the Fund’s average annual total returns  of the share classes presented compared with those of the Fund’s benchmark index and other comparative indices, which include securities with investment characteristics similar to those held by the Fund.</span>
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	<span style="color:#000000;font-family:Times New Roman;font-size:8pt;font-style:italic;">Retirement Class shares commenced operations on March 1, 2016.</span>
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	<span style="color:#000000;font-family:Times New Roman;font-size:9pt;">800-422-1050</span>
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	<span style="color:#000000;font-family:Times New Roman;font-size:9pt;">harborcapital.com</span>
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	<span style="color:#000000;font-family:Times New Roman;font-size:9pt;"> Please note that the Fund’s past </span><span style="color:#000000;font-family:Times New Roman;font-size:9pt;">performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.</span>
Bar Chart [Heading]	rr_BarChartHeading	<span style="font-family:Arial Narrow;font-size:9pt;font-weight:bold;margin-left:4pt;">Calendar Year Total Returns for Institutional Class Shares</span>
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	During the time periods shown in the bar chart, the Fund’s highest and lowest returns for a calendar quarter were:Total ReturnsQuarter/YearBest Quarter34.29%Q2 2020Worst Quarter-25.49%Q2 2022
Performance Table Heading	rr_PerformanceTableHeading	<span style="font-family:Arial Narrow;font-size:9pt;font-weight:bold;margin-left:3pt;">Average Annual Total Returns — As of December 31, </span><span style="font-family:Arial Narrow;font-size:9pt;font-weight:bold;">2022</span>
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	<span style="color:#000000;font-family:Times New Roman;font-size:9pt;margin-left:0%;">After-tax returns are calculated using the historical highest individual </span><span style="color:#000000;font-family:Times New Roman;font-size:9pt;">federal marginal income tax rates and do not reflect the impact of state and local taxes.</span>
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	<span style="color:#000000;font-family:Times New Roman;font-size:9pt;"> Actual after-tax returns will depend on </span><span style="color:#000000;font-family:Times New Roman;font-size:9pt;">a shareholder’s individual tax situation and may differ from those shown. The after-tax returns shown are not relevant to tax-exempt shareholders or shareholders who hold their Fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account. </span>
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	<span style="color:#000000;font-family:Times New Roman;font-size:9pt;">After-tax returns are shown for Institutional </span><span style="color:#000000;font-family:Times New Roman;font-size:9pt;">Class shares only. After-tax returns for each of the Retirement, Administrative, and Investor Class of shares will vary.</span>
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 will depend on a shareholder’s individual tax situation and may differ from those shown. The after-tax returns shown are not relevant to tax-exempt shareholders or shareholders who hold their Fund shares through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account. After-tax returns are shown for Institutional Class shares only. After-tax returns for each of the Retirement, Administrative, and Investor Class of shares will vary.
Harbor Capital Appreciation Fund | Retirement Class
Risk Return Abstract	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.60%	[1]
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.04%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.64%
Fee Waiver	rr_FeeWaiverOrReimbursementOverAssets	(0.05%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver or Expense Reimbursement	rr_NetExpensesOverAssets	0.59%	[1]
One Year	rr_ExpenseExampleYear01	$ 60
Three Years	rr_ExpenseExampleYear03	200
Five Years	rr_ExpenseExampleYear05	352
Ten Years	rr_ExpenseExampleYear10	$ 794
One Year	rr_AverageAnnualReturnYear01	(37.67%)	[2]
Annualized Five Years	rr_AverageAnnualReturnYear05	8.05%	[2]
Annualized Ten Years	rr_AverageAnnualReturnYear10	12.84%	[2]
Annualized Since Inception	rr_AverageAnnualReturnSinceInception	11.23%	[2]
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 03, 2016	[2]
Harbor Capital Appreciation Fund | Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.60%	[1]
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.12%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.72%
Fee Waiver	rr_FeeWaiverOrReimbursementOverAssets	(0.05%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver or Expense Reimbursement	rr_NetExpensesOverAssets	0.67%	[1]
One Year	rr_ExpenseExampleYear01	$ 68
Three Years	rr_ExpenseExampleYear03	225
Five Years	rr_ExpenseExampleYear05	396
Ten Years	rr_ExpenseExampleYear10	$ 890
2013	rr_AnnualReturn2013	37.66%
2014	rr_AnnualReturn2014	9.93%
2015	rr_AnnualReturn2015	10.99%
2016	rr_AnnualReturn2016	(1.07%)
2017	rr_AnnualReturn2017	36.59%
2018	rr_AnnualReturn2018	(1.03%)
2019	rr_AnnualReturn2019	33.28%
2020	rr_AnnualReturn2020	54.43%
2021	rr_AnnualReturn2021	15.63%
2022	rr_AnnualReturn2022	(37.72%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	<span style="font-family:Arial Narrow;font-size:9pt;margin-left:0.0pt;">Best Quarter</span>
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	34.29%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	<span style="font-family:Arial Narrow;font-size:9pt;margin-left:0.0pt;">Worst Quarter</span>
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Jun. 30, 2022
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(25.49%)
One Year	rr_AverageAnnualReturnYear01	(37.72%)
Annualized Five Years	rr_AverageAnnualReturnYear05	7.97%
Annualized Ten Years	rr_AverageAnnualReturnYear10	12.78%
Annualized Since Inception	rr_AverageAnnualReturnSinceInception	11.21%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 29, 1987
Harbor Capital Appreciation Fund | Administrative Class
Risk Return Abstract	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.60%	[1]
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.12%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.97%
Fee Waiver	rr_FeeWaiverOrReimbursementOverAssets	(0.05%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver or Expense Reimbursement	rr_NetExpensesOverAssets	0.92%	[1]
One Year	rr_ExpenseExampleYear01	$ 94
Three Years	rr_ExpenseExampleYear03	304
Five Years	rr_ExpenseExampleYear05	531
Ten Years	rr_ExpenseExampleYear10	$ 1,185
One Year	rr_AverageAnnualReturnYear01	(37.87%)
Annualized Five Years	rr_AverageAnnualReturnYear05	7.70%
Annualized Ten Years	rr_AverageAnnualReturnYear10	12.50%
Annualized Since Inception	rr_AverageAnnualReturnSinceInception	9.82%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 11, 2002
Harbor Capital Appreciation Fund | Investor Class
Risk Return Abstract	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.60%	[1]
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.23%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.08%
Fee Waiver	rr_FeeWaiverOrReimbursementOverAssets	(0.05%)	[1]
Total Annual Fund Operating Expenses After Fee Waiver or Expense Reimbursement	rr_NetExpensesOverAssets	1.03%	[1]
One Year	rr_ExpenseExampleYear01	$ 105
Three Years	rr_ExpenseExampleYear03	339
Five Years	rr_ExpenseExampleYear05	591
Ten Years	rr_ExpenseExampleYear10	$ 1,313
One Year	rr_AverageAnnualReturnYear01	(37.94%)
Annualized Five Years	rr_AverageAnnualReturnYear05	7.57%
Annualized Ten Years	rr_AverageAnnualReturnYear10	12.37%
Annualized Since Inception	rr_AverageAnnualReturnSinceInception	9.66%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 11, 2002
Harbor Capital Appreciation Fund | After Taxes on Distributions | Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	(37.72%)
Annualized Five Years	rr_AverageAnnualReturnYear05	5.62%
Annualized Ten Years	rr_AverageAnnualReturnYear10	10.71%
Annualized Since Inception	rr_AverageAnnualReturnSinceInception
Harbor Capital Appreciation Fund | After Taxes on Distributions and Sale of Fund Shares | Institutional Class
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	(22.33%)
Annualized Five Years	rr_AverageAnnualReturnYear05	6.61%
Annualized Ten Years	rr_AverageAnnualReturnYear10	10.59%
Annualized Since Inception	rr_AverageAnnualReturnSinceInception
Harbor Capital Appreciation Fund | Russell 1000® Growth (reflects no deduction for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	(29.14%)	[3]
Annualized Five Years	rr_AverageAnnualReturnYear05	10.96%	[3]
Annualized Ten Years	rr_AverageAnnualReturnYear10	14.10%	[3]
Annualized Since Inception	rr_AverageAnnualReturnSinceInception	10.51%	[3]
Harbor Capital Appreciation Fund | S&P 500 (reflects no deduction for fees, expenses or taxes)
Risk Return Abstract	rr_RiskReturnAbstract
One Year	rr_AverageAnnualReturnYear01	(18.11%)	[3]
Annualized Five Years	rr_AverageAnnualReturnYear05	9.42%	[3]
Annualized Ten Years	rr_AverageAnnualReturnYear10	12.56%	[3]
Annualized Since Inception	rr_AverageAnnualReturnSinceInception	10.51%	[3]

[1] The Advisor has contractually agreed to reduce the management fee to 0.56% on assets between $5 billion and $10 billion, 0.54% on assets between $10 billion and $20 billion and 0.53% on assets over $20 billion through February 29, 2024. Only the Fund’s Board of Trustees may modify or terminate this agreement.

[2] Retirement Class shares commenced operations on March 1, 2016. The performance attributed to the Retirement Class shares prior to that date is that of the Institutional Class shares. Performance prior to March 1, 2016 has not been adjusted to reflect the lower expenses of Retirement Class shares. During this period, Retirement Class shares would have had returns similar to, but potentially higher than, Institutional Class shares due to the fact that Retirement Class shares represent interests in the same portfolio as Institutional Class shares but are subject to lower expenses.

[3] Since Inception return based on the inception date of the Institutional Class shares.