v3.25.0.1

Label	Element	Value
Diamond Hill Small Cap Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill Small Cap Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill Small Cap Fund is to provide long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 43% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	43.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The fund, under normal market conditions, invests at least 80% of its net assets in U.S. equity securities with small market capitalizations that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued. Equity securities consist of common and preferred stocks. Small cap companies are defined as companies with market capitalizations at the time of purchase below $3 billion or in the range of those market capitalizations of companies included in the Russell 2000 Index at the time of purchase. The capitalization range of the Russell 2000 Index is between $3.8 million and $15.9 billion as of January 31, 2025. The size of the companies included in the Russell 2000 Index will change with market conditions. The Adviser focuses on estimating a company’s value independent of its current stock price. To estimate a company’s value, the Adviser concentrates on the fundamental economic drivers of the business. The primary focus is on “bottom-up” analysis, which takes into consideration earnings, revenue growth, operating margins and other economic factors. The Adviser also considers the level of industry competition, regulatory factors, the threat of technological obsolescence, and a variety of other industry factors. If the Adviser’s estimate of a company’s value differs sufficiently from the current market price, the company may be an attractive investment opportunity. In constructing a portfolio of securities, the Adviser is not constrained by the sector or industry weights in the benchmark. The Adviser relies on individual stock selection and discipline in the investment process to add value. The highest portfolio security weights are assigned to companies where the Adviser has the highest level of conviction. Once a stock is selected, the Adviser continues to monitor the company’s strategies, financial performance and competitive environment. The Adviser may sell a security as it reaches the Adviser’s estimate of the company’s value if it believes that the company’s earnings, revenue growth, operating margin or other economic factors are deteriorating or if it identifies a stock that it believes offers a better investment opportunity.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	The fund, under normal market conditions, invests at least 80% of its net assets in U.S. equity securities with small market capitalizations that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued.
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the Russell 3000 Index, which measures the performance of roughly 3,000 of the largest US companies based on total market capitalization. The Russell 2000 Index represents an index of securities that reflect the market sectors in which the fund invests and is utilized by the Adviser for measuring performance. The Russell 2000 Index measures the performance of roughly 2,000 US small-cap companies. The indexes are unmanaged, market capitalization weighted, include net reinvested dividends, do not reflect fees or expenses (which would lower the return), and are not available for direct investment.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading]	rr_BarChartHeading	CLASS I ANNUAL TOTAL RETURN-YEARS ENDED 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 4Q 2020, +26.68% Worst Quarter: 1Q 2020, -36.17%
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/24
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table show two aspects of the fund: volatility and performance. The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year. The table shows the fund’s average annual total returns for certain time periods compared to the returns of a broad-based securities index and a supplemental index. The bar chart and table provide some indication of the risks of investing in the fund. Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available by visiting www.diamond-hill.com or by calling 888-226-5595.
Diamond Hill Small Cap Fund | Russell 3000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 3000 Index
1 Year	rr_AverageAnnualReturnYear01	23.81%
5 Years	rr_AverageAnnualReturnYear05	13.86%
10 Years	rr_AverageAnnualReturnYear10	12.55%
Diamond Hill Small Cap Fund | Russell 2000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 2000 Index
1 Year	rr_AverageAnnualReturnYear01	11.54%
5 Years	rr_AverageAnnualReturnYear05	7.40%
10 Years	rr_AverageAnnualReturnYear10	7.82%
Diamond Hill Small Cap Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill Small Cap Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill Small Cap Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions. Market uncertainty can increase dramatically, and these conditions may result in disruptions of the global credit markets, periods of reduced liquidity, greater general volatility, volatility of credit spreads, and a contraction of availability of credit and lack of price transparency.
Diamond Hill Small Cap Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual companies will perform as anticipated. The value of an individual company can be more volatile than the market as a whole, and the Adviser’s intrinsic value-oriented approach may fail to produce the intended results.
Diamond Hill Small Cap Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill Small Cap Fund | Small Cap Company Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Small Cap Company Risk  Investments in small cap companies may be riskier than investments in larger, more established companies. The securities of smaller companies may trade less frequently and in smaller volumes than securities of larger companies. In addition, smaller companies may be more vulnerable to economic, market and industry changes. As a result, share price changes may be more sudden or erratic than the prices of other equity securities, especially over the short term. Because smaller companies may have limited product lines, markets or financial resources or may depend on a few key employees, they may be more susceptible to particular economic events or competitive factors than large capitalization companies.
Diamond Hill Small Cap Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHSCX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.80%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.21%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	1.26%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 128
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	400
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	692
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,523
Label	rr_AverageAnnualReturnLabel	Investor Before Taxes
1 Year	rr_AverageAnnualReturnYear01	12.88%
5 Years	rr_AverageAnnualReturnYear05	9.21%
10 Years	rr_AverageAnnualReturnYear10	6.88%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 29, 2000
Diamond Hill Small Cap Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHSIX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.80%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.17%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.97%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 99
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	309
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	536
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,190
Annual Return 2015	rr_AnnualReturn2015	(3.47%)
Annual Return 2016	rr_AnnualReturn2016	14.45%
Annual Return 2017	rr_AnnualReturn2017	10.95%
Annual Return 2018	rr_AnnualReturn2018	(14.88%)
Annual Return 2019	rr_AnnualReturn2019	21.75%
Annual Return 2020	rr_AnnualReturn2020	(0.28%)
Annual Return 2021	rr_AnnualReturn2021	32.83%
Annual Return 2022	rr_AnnualReturn2022	(14.77%)
Annual Return 2023	rr_AnnualReturn2023	23.22%
Annual Return 2024	rr_AnnualReturn2024	13.22%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	26.68%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(36.17%)
Label	rr_AverageAnnualReturnLabel	Class I Before Taxes
1 Year	rr_AverageAnnualReturnYear01	13.22%
5 Years	rr_AverageAnnualReturnYear05	9.51%
10 Years	rr_AverageAnnualReturnYear10	7.18%
Inception Date	rr_AverageAnnualReturnInceptionDate	Apr. 29, 2005
Diamond Hill Small Cap Fund | Class I | After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	8.82%
5 Years	rr_AverageAnnualReturnYear05	5.75%
10 Years	rr_AverageAnnualReturnYear10	4.64%
Inception Date	rr_AverageAnnualReturnInceptionDate	Apr. 29, 2005
Diamond Hill Small Cap Fund | Class I | After Taxes on Distributions and Sales
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	9.87%
5 Years	rr_AverageAnnualReturnYear05	6.99%
10 Years	rr_AverageAnnualReturnYear10	5.31%
Inception Date	rr_AverageAnnualReturnInceptionDate	Apr. 29, 2005
Diamond Hill Small Cap Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHSYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.80%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.05%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.85%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 87
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	271
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	471
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,049
Label	rr_AverageAnnualReturnLabel	Class Y Before Taxes
1 Year	rr_AverageAnnualReturnYear01	13.31%
5 Years	rr_AverageAnnualReturnYear05	9.66%
10 Years	rr_AverageAnnualReturnYear10	7.31%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2011
Diamond Hill Small-Mid Cap Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill Small-Mid Cap Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill Small-Mid Cap Fund is to provide long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 22% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	22.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The fund, under normal market conditions, invests at least 80% of its net assets in U.S. equity securities with small and medium market capitalizations that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued. Equity securities consist of common and preferred stocks. Small and mid cap companies are defined as companies with market capitalizations at the time of purchase between $500 million and $10 billion or in the range of those market capitalizations of companies included in the Russell 2500 Index at the time of purchase. The capitalization range of the Russell 2500 Index is between $3.8 million and $51.4 billion as of January 31, 2025. The size of the companies included in the Russell 2500 Index will change with market conditions. The Adviser focuses on estimating a company’s value independent of its current stock price. To estimate a company’s value, the Adviser concentrates on the fundamental economic drivers of the business. The primary focus is on “bottom-up” analysis, which takes into consideration earnings, revenue growth, operating margins and other economic factors. The Adviser also considers the level of industry competition, regulatory factors, the threat of technological obsolescence, and a variety of other industry factors. If the Adviser’s estimate of a company’s value differs sufficiently from the current market price, the company may be an attractive investment opportunity. In constructing a portfolio of securities, the Adviser is not constrained by the sector or industry weights in the benchmark. The Adviser relies on individual stock selection and discipline in the investment process to add value. The highest portfolio security weights are assigned to companies where the Adviser has the highest level of conviction. Once a stock is selected, the Adviser continues to monitor the company’s strategies, financial performance and competitive environment. The Adviser may sell a security as it reaches the Adviser’s estimate of the company’s value if it believes that the company’s earnings, revenue growth, operating margin or other economic factors are deteriorating; or, if it identifies a stock that it believes offers a better investment opportunity.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	The fund, under normal market conditions, invests at least 80% of its net assets in U.S. equity securities with small and medium market capitalizations that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued.
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the Russell 3000 Index, which measures the performance of roughly 3,000 of the largest US companies based on total market capitalization. The Russell 2500 Index represents an index of securities that reflect the market sectors in which the fund invests and is utilized by the Adviser for measuring performance. The Russell 2500 Index measures the performance of roughly 2,500 US small to mid-cap companies. The indexes are unmanaged, market capitalization weighted, include net reinvested dividends, do not reflect fees or expenses (which would lower the return), and are not available for direct investment.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading]	rr_BarChartHeading	CLASS I ANNUAL TOTAL RETURN-YEARS ENDED 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 4Q 2020, +23.26% Worst Quarter: 1Q 2020, -35.83%
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/24
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table show two aspects of the fund: volatility and performance. The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year. The table shows the fund’s average annual total returns for certain time periods compared to the returns of a broad-based securities index and a supplemental index. The bar chart and table provide some indication of the risks of investing in the fund. Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available by visiting www.diamond-hill.com or by calling 1-888-226-5595.
Diamond Hill Small-Mid Cap Fund | Russell 3000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 3000 Index
1 Year	rr_AverageAnnualReturnYear01	23.81%
5 Years	rr_AverageAnnualReturnYear05	13.86%
10 Years	rr_AverageAnnualReturnYear10	12.55%
Diamond Hill Small-Mid Cap Fund | Russell 2500 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 2500 Index
1 Year	rr_AverageAnnualReturnYear01	12.00%
5 Years	rr_AverageAnnualReturnYear05	8.77%
10 Years	rr_AverageAnnualReturnYear10	8.85%
Diamond Hill Small-Mid Cap Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill Small-Mid Cap Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill Small-Mid Cap Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions. Market uncertainty can increase dramatically, and these conditions may result in disruptions of the global credit markets, periods of reduced liquidity, greater general volatility, volatility of credit spreads, and a contraction of availability of credit and lack of price transparency.
Diamond Hill Small-Mid Cap Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual companies will perform as anticipated. The value of an individual company can be more volatile than the market as a whole, and the Adviser’s intrinsic value-oriented approach may fail to produce the intended results.
Diamond Hill Small-Mid Cap Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk  The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill Small-Mid Cap Fund | Small Cap And Mid Cap Company Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Small Cap and Mid Cap Company Risk  Investments in small cap and mid cap companies may be riskier than investments in larger, more established companies. The securities of these companies may trade less frequently and in smaller volumes than securities of larger companies. In addition, small cap and mid cap companies may be more vulnerable to economic, market and industry changes. As a result, share price changes may be more sudden or erratic than the prices of other equity securities, especially over the short term. Because smaller companies may have limited product lines, markets or financial resources or may depend on a few key employees, they may be more susceptible to particular economic events or competitive factors than large capitalization companies.
Diamond Hill Small-Mid Cap Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHMAX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.75%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.21%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	1.21%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 123
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	384
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	665
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,466
Label	rr_AverageAnnualReturnLabel	Investor Before Taxes
1 Year	rr_AverageAnnualReturnYear01	7.78%
5 Years	rr_AverageAnnualReturnYear05	6.39%
10 Years	rr_AverageAnnualReturnYear10	6.91%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2005
Diamond Hill Small-Mid Cap Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHMIX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.75%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.17%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.92%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 94
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	293
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	509
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,131
Annual Return 2015	rr_AnnualReturn2015	1.32%
Annual Return 2016	rr_AnnualReturn2016	18.18%
Annual Return 2017	rr_AnnualReturn2017	8.63%
Annual Return 2018	rr_AnnualReturn2018	(12.56%)
Annual Return 2019	rr_AnnualReturn2019	27.74%
Annual Return 2020	rr_AnnualReturn2020	1.31%
Annual Return 2021	rr_AnnualReturn2021	31.14%
Annual Return 2022	rr_AnnualReturn2022	(13.62%)
Annual Return 2023	rr_AnnualReturn2023	11.47%
Annual Return 2024	rr_AnnualReturn2024	8.11%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	23.26%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(35.83%)
Label	rr_AverageAnnualReturnLabel	Class I Before Taxes
1 Year	rr_AverageAnnualReturnYear01	8.11%
5 Years	rr_AverageAnnualReturnYear05	6.70%
10 Years	rr_AverageAnnualReturnYear10	7.23%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2005
Diamond Hill Small-Mid Cap Fund | Class I | After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	6.26%
5 Years	rr_AverageAnnualReturnYear05	5.66%
10 Years	rr_AverageAnnualReturnYear10	6.29%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2005
Diamond Hill Small-Mid Cap Fund | Class I | After Taxes on Distributions and Sales
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	6.20%
5 Years	rr_AverageAnnualReturnYear05	5.20%
10 Years	rr_AverageAnnualReturnYear10	5.71%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2005
Diamond Hill Small-Mid Cap Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHMYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.75%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.05%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.80%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 82
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	255
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	444
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 990
Label	rr_AverageAnnualReturnLabel	Class Y Before Taxes
1 Year	rr_AverageAnnualReturnYear01	8.23%
5 Years	rr_AverageAnnualReturnYear05	6.84%
10 Years	rr_AverageAnnualReturnYear10	7.35%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2011
Diamond Hill Mid Cap Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill Mid Cap Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill Mid Cap Fund is to provide long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 19% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	19.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The fund, under normal market conditions, invests at least 80% of its net assets in U.S. equity securities with medium market capitalizations that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued. Equity securities consist of common and preferred stocks. Mid cap companies are defined as companies with market capitalizations at the time of purchase between $1.5 billion and $20 billion or in the range of those market capitalizations of companies included in the Russell Midcap Index at the time of purchase. The capitalization range of the Russell Midcap Index is between $338.1 million and $187.9 billion as of January 31, 2025. The size of the companies included in the Russell Midcap Index will change with market conditions. The Adviser focuses on estimating a company’s value independent of its current stock price. To estimate a company’s value, the Adviser concentrates on the fundamental economic drivers of the business. The primary focus is on “bottom-up” analysis, which takes into consideration earnings, revenue growth, operating margins and other economic factors. The Adviser also considers the level of industry competition, regulatory factors, the threat of technological obsolescence, and a variety of other industry factors. If the Adviser’s estimate of a company’s value differs sufficiently from the current market price, the company may be an attractive investment opportunity. In constructing a portfolio of securities, the Adviser is not constrained by the sector or industry weights in the benchmark. The Adviser relies on individual stock selection and discipline in the investment process to add value. The highest portfolio security weights are assigned to companies where the Adviser has the highest level of conviction. Once a stock is selected, the Adviser continues to monitor the company’s strategies, financial performance and competitive environment. The Adviser may sell a security as it reaches the Adviser’s estimate of the company’s value if it believes that the company’s earnings, revenue growth, operating margin or other economic factors are deteriorating or if it identifies a stock that it believes offers a better investment opportunity.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	The fund, under normal market conditions, invests at least 80% of its net assets in U.S. equity securities with medium market capitalizations that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued.
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the Russell 3000 Index, which measures the performance of roughly 3,000 of the largest US companies based on total market capitalization. The Russell Midcap Index represents an index of securities that reflect the market sectors in which the fund invests and is utilized by the Adviser for measuring performance. The Russell Midcap Index measures the performance of roughly 800 US mid-cap companies. The indexes are unmanaged, market capitalization weighted, include net reinvested dividends, do not reflect fees or expenses (which would lower the return), and are not available for direct investment.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading]	rr_BarChartHeading	CLASS I ANNUAL TOTAL RETURN-YEARS ENDED 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 4Q 2020, +22.19% Worst Quarter: 1Q 2020, -36.76%
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/24
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table show two aspects of the fund: volatility and performance. The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year. The table shows the fund’s average annual total returns for certain time periods compared to the returns of a broad-based securities index and a supplemental index. The bar chart and table provide some indication of the risks of investing in the fund. Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available by visiting www.diamond-hill.com or by calling 1-888-226-5595.
Diamond Hill Mid Cap Fund | Russell 3000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 3000 Index
1 Year	rr_AverageAnnualReturnYear01	23.81%
5 Years	rr_AverageAnnualReturnYear05	13.86%
10 Years	rr_AverageAnnualReturnYear10	12.55%
Diamond Hill Mid Cap Fund | Russell Midcap Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell Midcap Index
1 Year	rr_AverageAnnualReturnYear01	15.34%
5 Years	rr_AverageAnnualReturnYear05	9.92%
10 Years	rr_AverageAnnualReturnYear10	9.63%
Diamond Hill Mid Cap Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill Mid Cap Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill Mid Cap Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions. Market uncertainty can increase dramatically, and these conditions may result in disruptions of the global credit markets, periods of reduced liquidity, greater general volatility, volatility of credit spreads, and a contraction of availability of credit and lack of price transparency.
Diamond Hill Mid Cap Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual companies will perform as anticipated. The value of an individual company can be more volatile than the market as a whole, and the Adviser’s intrinsic value-oriented approach may fail to produce the intended results.
Diamond Hill Mid Cap Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk  The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill Mid Cap Fund | Mid Cap Company Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Mid Cap Company Risk  Investments in mid cap companies may be riskier than investments in larger, more established companies. The securities of these companies may trade less frequently and in smaller volumes than securities of larger companies. In addition, mid cap companies may be more vulnerable to economic, market and industry changes. As a result, share price changes may be more sudden or erratic than the prices of other equity securities, especially over the short term. Because smaller companies may have limited product lines, markets or financial resources or may depend on a few key employees, they may be more susceptible to particular economic events or competitive factors than large capitalization companies.
Diamond Hill Mid Cap Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHPAX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.60%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.21%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	1.06%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 108
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	337
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	585
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,294
Label	rr_AverageAnnualReturnLabel	Investor Before Taxes
1 Year	rr_AverageAnnualReturnYear01	10.50%
5 Years	rr_AverageAnnualReturnYear05	5.95%
10 Years	rr_AverageAnnualReturnYear10	6.96%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 31, 2013
Diamond Hill Mid Cap Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHPIX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.60%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.17%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.77%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 79
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	246
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	428
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 954
Annual Return 2015	rr_AnnualReturn2015	0.74%
Annual Return 2016	rr_AnnualReturn2016	18.56%
Annual Return 2017	rr_AnnualReturn2017	10.47%
Annual Return 2018	rr_AnnualReturn2018	(10.31%)
Annual Return 2019	rr_AnnualReturn2019	25.82%
Annual Return 2020	rr_AnnualReturn2020	(1.76%)
Annual Return 2021	rr_AnnualReturn2021	31.29%
Annual Return 2022	rr_AnnualReturn2022	(13.39%)
Annual Return 2023	rr_AnnualReturn2023	9.44%
Annual Return 2024	rr_AnnualReturn2024	10.83%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	22.19%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(36.76%)
Label	rr_AverageAnnualReturnLabel	Class I Before Taxes
1 Year	rr_AverageAnnualReturnYear01	10.83%
5 Years	rr_AverageAnnualReturnYear05	6.26%
10 Years	rr_AverageAnnualReturnYear10	7.27%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 31, 2013
Diamond Hill Mid Cap Fund | Class I | After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	8.67%
5 Years	rr_AverageAnnualReturnYear05	5.37%
10 Years	rr_AverageAnnualReturnYear10	6.61%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 31, 2013
Diamond Hill Mid Cap Fund | Class I | After Taxes on Distributions and Sales
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	8.06%
5 Years	rr_AverageAnnualReturnYear05	4.86%
10 Years	rr_AverageAnnualReturnYear10	5.82%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 31, 2013
Diamond Hill Mid Cap Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHPYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.60%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.05%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.65%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 66
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	208
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	362
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 810
Label	rr_AverageAnnualReturnLabel	Class Y Before Taxes
1 Year	rr_AverageAnnualReturnYear01	10.93%
5 Years	rr_AverageAnnualReturnYear05	6.38%
10 Years	rr_AverageAnnualReturnYear10	7.39%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 31, 2013
Diamond Hill Large Cap Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill Large Cap Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill Large Cap Fund is to provide long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 36% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	36.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The fund, under normal market conditions, invests at least 80% of its net assets in U.S. equity securities with large market capitalizations ("large cap") that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued. Equity securities consist of common and preferred stocks. Large cap companies are defined as companies with market capitalizations at the time of purchase of $5 billion or greater. The Adviser focuses on estimating a company’s value independent of its current stock price. To estimate a company’s value, the Adviser concentrates on the fundamental economic drivers of the business. The primary focus is on “bottom-up” analysis, which takes into consideration earnings, revenue growth, operating margins and other economic factors. The Adviser also considers the level of industry competition, regulatory factors, the threat of technological obsolescence, and a variety of other industry factors. If the Adviser’s estimate of a company’s value differs sufficiently from the current market price, the company may be an attractive investment opportunity. In constructing a portfolio of securities, the Adviser is not constrained by the sector or industry weights in the benchmark. The Adviser relies on individual stock selection and discipline in the investment process to add value. The highest portfolio security weights are assigned to companies where the Adviser has the highest level of conviction. Once a stock is selected, the Adviser continues to monitor the company’s strategies, financial performance and competitive environment. The Adviser may sell a security as it reaches the Adviser’s estimate of the company’s value if it believes that the company’s earnings, revenue growth, operating margin or other economic factors are deteriorating or if it identifies a stock that it believes offers a better investment opportunity.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	The fund, under normal market conditions, invests at least 80% of its net assets in U.S. equity securities with large market capitalizations ("large cap") that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued.
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the Russell 3000 Index, which measures the performance of roughly 3,000 of the largest US companies based on total market capitalization. The Russell 1000 Value Index represents the index of securities that is utilized by the Adviser for measuring performance. The Russell 1000 Value Index and the Russell 1000 Index represent indexes of securities that reflect the market sectors in which the fund may invest. The Russell 1000 Value Index measures the performance of US large- cap companies with lower price/book ratios and forecasted growth values. The Russell 1000 Index measures the performance of roughly 1,000 US large-cap companies. The indexes are unmanaged, market capitalization weighted, include net reinvested dividends, do not reflect fees or expenses (which would lower the return), and are not available for direct investment.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading]	rr_BarChartHeading	CLASS I ANNUAL TOTAL RETURN-YEARS ENDED 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 2Q 2020, +18.06% Worst Quarter: 1Q 2020, -26.82%
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/24
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table show two aspects of the fund: volatility and performance. The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year. The table shows the fund’s average annual total returns for certain time periods compared to the returns of a broad-based securities index and two supplemental indexes. The bar chart and table provide some indication of the risks of investing in the fund. Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available by visiting www.diamond-hill.com or by calling 1-888-226-5595.
Diamond Hill Large Cap Fund | Russell 3000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 3000 Index
1 Year	rr_AverageAnnualReturnYear01	23.81%
5 Years	rr_AverageAnnualReturnYear05	13.86%
10 Years	rr_AverageAnnualReturnYear10	12.55%
Diamond Hill Large Cap Fund | Russell 1000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 1000 Index
1 Year	rr_AverageAnnualReturnYear01	24.51%
5 Years	rr_AverageAnnualReturnYear05	14.28%
10 Years	rr_AverageAnnualReturnYear10	12.87%
Diamond Hill Large Cap Fund | Russell 1000 Value Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 1000 Value Index
1 Year	rr_AverageAnnualReturnYear01	14.37%
5 Years	rr_AverageAnnualReturnYear05	8.68%
10 Years	rr_AverageAnnualReturnYear10	8.49%
Diamond Hill Large Cap Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill Large Cap Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill Large Cap Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions. Market uncertainty can increase dramatically, and these conditions may result in disruptions of the global credit markets, periods of reduced liquidity, greater general volatility, volatility of credit spreads, and a contraction of availability of credit and lack of price transparency.
Diamond Hill Large Cap Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual companies will perform as anticipated. The value of an individual company can be more volatile than the market as a whole, and the Adviser’s intrinsic value-oriented approach may fail to produce the intended results.
Diamond Hill Large Cap Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk  The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill Large Cap Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHLAX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.50%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.21%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.96%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 98
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	306
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	531
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,178
Label	rr_AverageAnnualReturnLabel	Investor Before Taxes
1 Year	rr_AverageAnnualReturnYear01	11.83%
5 Years	rr_AverageAnnualReturnYear05	8.31%
10 Years	rr_AverageAnnualReturnYear10	9.15%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 29, 2001
Diamond Hill Large Cap Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHLRX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.50%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.17%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.67%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 68
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	214
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	373
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 835
Annual Return 2015	rr_AnnualReturn2015	(0.85%)
Annual Return 2016	rr_AnnualReturn2016	14.63%
Annual Return 2017	rr_AnnualReturn2017	20.30%
Annual Return 2018	rr_AnnualReturn2018	(9.63%)
Annual Return 2019	rr_AnnualReturn2019	32.18%
Annual Return 2020	rr_AnnualReturn2020	8.97%
Annual Return 2021	rr_AnnualReturn2021	25.75%
Annual Return 2022	rr_AnnualReturn2022	(13.38%)
Annual Return 2023	rr_AnnualReturn2023	13.66%
Annual Return 2024	rr_AnnualReturn2024	12.11%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	18.06%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(26.82%)
Label	rr_AverageAnnualReturnLabel	Class I Before Taxes
1 Year	rr_AverageAnnualReturnYear01	12.11%
5 Years	rr_AverageAnnualReturnYear05	8.63%
10 Years	rr_AverageAnnualReturnYear10	9.46%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 31, 2005
Diamond Hill Large Cap Fund | Class I | After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	9.58%
5 Years	rr_AverageAnnualReturnYear05	7.08%
10 Years	rr_AverageAnnualReturnYear10	8.04%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 31, 2005
Diamond Hill Large Cap Fund | Class I | After Taxes on Distributions and Sales
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	9.06%
5 Years	rr_AverageAnnualReturnYear05	6.68%
10 Years	rr_AverageAnnualReturnYear10	7.47%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 31, 2005
Diamond Hill Large Cap Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHLYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.50%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.05%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.55%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 56
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	176
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	307
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 689
Label	rr_AverageAnnualReturnLabel	Class Y Before Taxes
1 Year	rr_AverageAnnualReturnYear01	12.26%
5 Years	rr_AverageAnnualReturnYear05	8.75%
10 Years	rr_AverageAnnualReturnYear10	9.59%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2011
Diamond Hill Large Cap Concentrated Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill Large Cap Concentrated Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill Large Cap Concentrated Fund is to provide long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the most recent fiscal year, the fund's portfolio turnover rate was 40% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	40.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The fund, under normal market conditions, invests at least 80% of its net assets in U.S. equity securities with large market capitalizations ("large cap") that Diamond Hill Capital Management, Inc. (the “Adviser”) believes are undervalued. Equity securities consist of common and preferred stocks. Large cap companies are defined as companies with market capitalizations of $15 billion or greater at the time of purchase. The fund is non-diversified and intends to concentrate its investments in approximately 20 securities. The Adviser focuses on estimating a company’s value independent of its current stock price. To estimate a company’s value, the Adviser concentrates on the fundamental economic drivers of the business. The primary focus is on “bottom-up” analysis, which takes into consideration earnings, revenue growth, operating margins and other economic factors. The Adviser also considers the level of industry competition, regulatory factors, the threat of technological obsolescence, and a variety of other industry factors. If the Adviser’s estimate of a company’s value differs sufficiently from the current market price, the company may be an attractive investment opportunity. In constructing a portfolio of securities, the Adviser is not constrained by the sector or industry weights in the benchmark. The Adviser relies on individual stock selection and discipline in the investment process to add value. The highest portfolio security weights are assigned to companies where the Adviser has the highest level of conviction. Once a stock is selected, the Adviser continues to monitor the company’s strategies, financial performance and competitive environment. The Adviser may sell a security as it reaches the Adviser’s estimate of the company’s value if it believes that the company’s earnings, revenue growth, operating margin or other economic factors are deteriorating, or if it identifies a stock that it believes offers a better investment opportunity.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	The fund, under normal market conditions, invests at least 80% of its net assets in U.S. equity securities with large market capitalizations ("large cap") that Diamond Hill Capital Management, Inc. (the “Adviser”) believes are undervalued. Equity securities consist of common and preferred stocks. Large cap companies are defined as companies with market capitalizations of $15 billion or greater at the time of purchase. The fund is non-diversified and intends to concentrate its investments in approximately 20 securities.
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the Russell 3000 Index, which measures the performance of roughly 3,000 of the largest US companies based on total market capitalization. The Russell 1000 Value Index represents the index of securities that is utilized by the Adviser for measuring performance. The Russell 1000 Value Index and the Russell 1000 Index represent indexes of securities that reflect the market sectors in which the fund may invest. The Russell 1000 Value Index measures the performance of US large- cap companies with lower price/book ratios and forecasted growth values. The Russell 1000 Index measures the performance of roughly 1,000 US large-cap companies. The indexes are unmanaged, market capitalization weighted, include net reinvested dividends, do not reflect fees or expenses (which would lower the return), and are not available for direct investment.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading]	rr_BarChartHeading	CLASS I ANNUAL TOTAL RETURN-YEARS ENDED 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 4Q 2023, +12.51% Worst Quarter: 2Q 2022, -15.55%
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/24
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table show two aspects of the fund: volatility and performance. The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year. The table shows the fund’s average annual total returns for certain time periods compared to the returns of a broad-based securities index and two supplemental indexes. The bar chart and table provide some indication of the risks of investing in the fund. Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available by visiting www.diamond-hill.com or by calling 1-888-226-5595.
Diamond Hill Large Cap Concentrated Fund | Russell 3000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 3000 Index
1 Year	rr_AverageAnnualReturnYear01	23.81%
Since Inception	rr_AverageAnnualReturnSinceInception	11.96%
Diamond Hill Large Cap Concentrated Fund | Russell 1000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 1000 Index
1 Year	rr_AverageAnnualReturnYear01	24.51%
Since Inception	rr_AverageAnnualReturnSinceInception	12.65%
Diamond Hill Large Cap Concentrated Fund | Russell 1000 Value Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 1000 Value Index
1 Year	rr_AverageAnnualReturnYear01	14.37%
Since Inception	rr_AverageAnnualReturnSinceInception	9.26%
Diamond Hill Large Cap Concentrated Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill Large Cap Concentrated Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill Large Cap Concentrated Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions. Market uncertainty can increase dramatically, and these conditions may result in disruptions of the global credit markets, periods of reduced liquidity, greater general volatility, volatility of credit spreads, and a contraction of availability of credit and lack of price transparency.
Diamond Hill Large Cap Concentrated Fund | Focused Portfolio Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Focused Portfolio Risk The fund may have more volatility and is considered to have more risk than a fund that invests in securities of a greater number of issuers because changes in the value of a single issuer's security may have a more significant effect, either positive or negative, on the fund's net asset value.
Diamond Hill Large Cap Concentrated Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual companies will perform as anticipated. The value of an individual company can be more volatile than the market as a whole, and the Adviser’s intrinsic value-oriented approach may fail to produce the intended results.
Diamond Hill Large Cap Concentrated Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk  The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill Large Cap Concentrated Fund | Sector Emphasis Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Sector Emphasis Risk The fund, from time to time, may invest 25% or more of its assets in one or more sectors, subjecting the fund to sector emphasis risk. This is the risk that the fund is subject to a greater risk of loss as a result of adverse economic, business or other developments affecting a specific sector in which the fund has a focused position, than if its investments were diversified across a greater number of industry sectors. Some sectors possess particular risks that may not affect other sectors.
Diamond Hill Large Cap Concentrated Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHFAX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.50%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.21%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.96%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 98
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	306
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	531
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,178
Label	rr_AverageAnnualReturnLabel	Investor Before Taxes
1 Year	rr_AverageAnnualReturnYear01	13.87%
Since Inception	rr_AverageAnnualReturnSinceInception	9.07%
Inception Date	rr_AverageAnnualReturnInceptionDate	Feb. 26, 2021
Diamond Hill Large Cap Concentrated Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHFIX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.50%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.17%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.67%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 68
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	214
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	373
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 835
Annual Return 2022	rr_AnnualReturn2022	(12.75%)
Annual Return 2023	rr_AnnualReturn2023	17.21%
Annual Return 2024	rr_AnnualReturn2024	14.24%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2023
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	12.51%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Jun. 30, 2022
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(15.55%)
Label	rr_AverageAnnualReturnLabel	Class I Before Taxes
1 Year	rr_AverageAnnualReturnYear01	14.24%
Since Inception	rr_AverageAnnualReturnSinceInception	9.41%
Inception Date	rr_AverageAnnualReturnInceptionDate	Feb. 26, 2021
Diamond Hill Large Cap Concentrated Fund | Class I | After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	12.50%
Since Inception	rr_AverageAnnualReturnSinceInception	8.68%
Inception Date	rr_AverageAnnualReturnInceptionDate	Feb. 26, 2021
Diamond Hill Large Cap Concentrated Fund | Class I | After Taxes on Distributions and Sales
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	9.71%
Since Inception	rr_AverageAnnualReturnSinceInception	7.32%
Inception Date	rr_AverageAnnualReturnInceptionDate	Feb. 26, 2021
Diamond Hill Large Cap Concentrated Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHFYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.50%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.05%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.55%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 56
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	176
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	307
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 689
Label	rr_AverageAnnualReturnLabel	Class Y Before Taxes
1 Year	rr_AverageAnnualReturnYear01	14.34%
Since Inception	rr_AverageAnnualReturnSinceInception	9.51%
Inception Date	rr_AverageAnnualReturnInceptionDate	Feb. 26, 2021
Diamond Hill Select Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill Select Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill Select Fund is to provide long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 44% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	44.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The fund, under normal market conditions, invests its assets in U.S. equity securities of any size capitalization that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued. Equity securities consist of common and preferred stocks. The fund is non-diversified and intends to concentrate its investments in a limited number of securities. The Adviser focuses on estimating a company’s value independent of its current stock price. To estimate a company’s value, the Adviser concentrates on the fundamental economic drivers of the business. The primary focus is on “bottom-up” analysis, which takes into consideration earnings, revenue growth, operating margins and other economic factors. The Adviser also considers the level of industry competition, regulatory factors, the threat of technological obsolescence, and a variety of other industry factors. If the Adviser’s estimate of a company’s value differs sufficiently from the current market price, the company may be an attractive investment opportunity. In constructing a portfolio of securities, the Adviser is not constrained by the sector or industry weights in the benchmark. The Adviser relies on individual stock selection and discipline in the investment process to add value. The highest portfolio security weights are assigned to companies where the Adviser has the highest level of conviction. Once a stock is selected, the Adviser continues to monitor the company’s strategies, financial performance and competitive environment. The Adviser may sell a security as it reaches the Adviser’s estimate of the company’s value if it believes that the company’s earnings, revenue growth, operating margin or other economic factors are deteriorating or if it identifies a stock that it believes offers a better investment opportunity.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	The fund, under normal market conditions, invests its assets in U.S. equity securities of any size capitalization that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued. Equity securities consist of common and preferred stocks. The fund is non-diversified and intends to concentrate its investments in a limited number of securities.
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the Russell 3000 Index which measures the performance of roughly 3,000 of the largest US companies based on total market capitalization. The Russell 3000 Index also represents an index of securities that reflect the market sectors in which the fund invests and is utilized by the Adviser for measuring performance. The index is unmanaged, market capitalization weighted, includes net reinvested dividends, does not reflect fees or expenses (which would lower the return), and is not available for direct investment.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading]	rr_BarChartHeading	CLASS I ANNUAL TOTAL RETURN-YEARS ENDED 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 4Q 2020, +24.65% Worst Quarter: 1Q 2020, -34.01%
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/2024
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table show two aspects of the fund: volatility and performance. The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year. The table shows the fund’s average annual total returns for certain time periods compared to the returns of a broad-based securities index. The bar chart and table provide some indication of the risks of investing in the fund. Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available by visiting www.diamond-hill.com or by calling 1-888-226-5595.
Diamond Hill Select Fund | Russell 3000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 3000 Index
1 Year	rr_AverageAnnualReturnYear01	23.81%
5 Years	rr_AverageAnnualReturnYear05	13.86%
10 Years	rr_AverageAnnualReturnYear10	12.55%
Diamond Hill Select Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill Select Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill Select Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions. Market uncertainty can increase dramatically, and these conditions may result in disruptions of the global credit markets, periods of reduced liquidity, greater general volatility, volatility of credit spreads, and a contraction of availability of credit and lack of price transparency.
Diamond Hill Select Fund | Focused Portfolio Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Focused Portfolio Risk The fund may have more volatility and is considered to have more risk than a fund that invests in securities of a greater number of issuers because changes in the value of a single issuer's security may have a more significant effect, either positive or negative, on the fund's net asset value.
Diamond Hill Select Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual companies will perform as anticipated. The value of an individual company can be more volatile than the market as a whole, and the Adviser’s intrinsic value-oriented approach may fail to produce the intended results.
Diamond Hill Select Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk  The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill Select Fund | Sector Emphasis Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Sector Emphasis Risk The fund, from time to time, may invest 25% or more of its assets in one or more sectors, subjecting the fund to sector emphasis risk. This is the risk that the fund is subject to a greater risk of loss as a result of adverse economic, business or other developments affecting a specific sector in which the fund has a focused position, than if its investments were diversified across a greater number of industry sectors. Some sectors possess particular risks that may not affect other sectors.
Diamond Hill Select Fund | Small Cap And Mid Cap Company Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Small Cap and Mid Cap Company Risk  Investments in small cap and mid cap companies may be riskier than investments in larger, more established companies. The securities of these companies may trade less frequently and in smaller volumes than securities of larger companies. In addition, small cap and mid cap companies may be more vulnerable to economic, market and industry changes. As a result, share price changes may be more sudden or erratic than the prices of other equity securities, especially over the short term. Because smaller companies may have limited product lines, markets or financial resources or may depend on a few key employees, they may be more susceptible to particular economic events or competitive factors than large capitalization companies.
Diamond Hill Select Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHTAX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.70%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.21%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	1.16%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 118
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	368
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	638
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,409
Label	rr_AverageAnnualReturnLabel	Investor Before Taxes
1 Year	rr_AverageAnnualReturnYear01	12.79%
5 Years	rr_AverageAnnualReturnYear05	12.99%
10 Years	rr_AverageAnnualReturnYear10	10.53%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2005
Diamond Hill Select Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHLTX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.70%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.17%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.87%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 89
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	278
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	482
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,073
Annual Return 2015	rr_AnnualReturn2015	(1.14%)
Annual Return 2016	rr_AnnualReturn2016	9.62%
Annual Return 2017	rr_AnnualReturn2017	20.33%
Annual Return 2018	rr_AnnualReturn2018	(12.02%)
Annual Return 2019	rr_AnnualReturn2019	30.77%
Annual Return 2020	rr_AnnualReturn2020	14.57%
Annual Return 2021	rr_AnnualReturn2021	33.39%
Annual Return 2022	rr_AnnualReturn2022	(17.20%)
Annual Return 2023	rr_AnnualReturn2023	30.56%
Annual Return 2024	rr_AnnualReturn2024	13.13%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	24.65%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(34.01%)
Label	rr_AverageAnnualReturnLabel	Class I Before Taxes
1 Year	rr_AverageAnnualReturnYear01	13.13%
5 Years	rr_AverageAnnualReturnYear05	13.32%
10 Years	rr_AverageAnnualReturnYear10	10.86%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2005
Diamond Hill Select Fund | Class I | After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	11.46%
5 Years	rr_AverageAnnualReturnYear05	11.95%
10 Years	rr_AverageAnnualReturnYear10	9.73%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2005
Diamond Hill Select Fund | Class I | After Taxes on Distributions and Sales
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	9.04%
5 Years	rr_AverageAnnualReturnYear05	10.43%
10 Years	rr_AverageAnnualReturnYear10	8.66%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2005
Diamond Hill Select Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHTYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.70%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.05%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.75%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 77
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	240
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	417
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 930
Label	rr_AverageAnnualReturnLabel	Class Y Before Taxes
1 Year	rr_AverageAnnualReturnYear01	13.28%
5 Years	rr_AverageAnnualReturnYear05	13.46%
10 Years	rr_AverageAnnualReturnYear10	10.98%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2011
Diamond Hill Long-Short Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill Long-Short Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill Long-Short Fund is to provide long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 46% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	46.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The fund, under normal market conditions, invests its assets in U.S. equity securities of any size capitalization that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued and selling short U.S. equity securities of any size capitalization the Adviser believes are overvalued. Equity securities consist of common and preferred stocks. The Adviser focuses on estimating a company’s value independent of its current stock price. To estimate a company’s value, the Adviser concentrates on the fundamental economic drivers of the business. The primary focus is on “bottom-up” analysis, which takes into consideration earnings, revenue growth, operating margins and other economic factors. The Adviser also considers the level of industry competition, regulatory factors, the threat of technological obsolescence, and a variety of other industry factors. If the Adviser’s estimate of a company’s value differs sufficiently from the current market price, the company may be an attractive investment opportunity. In constructing a portfolio of securities, the Adviser is not constrained by the sector or industry weights in the benchmark. The Adviser relies on individual stock selection and discipline in the investment process to add value. The highest portfolio security weights are assigned to companies where the Adviser has the highest level of conviction. The fund also will sell securities short. Short sales are effected when it is believed that the price of a particular security will decline, and involves the sale of a security which the fund does not own in hopes of purchasing the same security at a later date at a lower price. To make delivery to the buyer, the fund must borrow the security, and the fund is obligated to return the security to the lender, which is accomplished by a later purchase of the security by the fund. The frequency of short sales will vary substantially in different periods, and it is not intended that any specified portion of the fund’s assets will as a matter of practice be invested in short sales. The fund will not make a short sale if, immediately before the transaction, the market value of all securities sold short exceeds 40% of the value of the fund’s net assets. Once a stock is purchased or sold short, the Adviser continues to monitor the company’s strategies, financial performance and competitive environment. The Adviser may sell a security (or repurchase a security sold short) as it reaches the Adviser’s estimate of the company’s value if it believes that the company’s earnings, revenue growth, operating margin or other economic factors are deteriorating (or improving in the case of a short sale); or, if it identifies a stock that it believes offers a better investment opportunity.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	The fund, under normal market conditions, invests its assets in U.S. equity securities of any size capitalization that Diamond Hill Capital Management, Inc. (the "Adviser”) believes are undervalued and selling short U.S. equity securities of any size capitalization the Adviser believes are overvalued. Equity securities consist of common and preferred stocks.
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the Russell 3000 Index, which measures the performance of roughly 3,000 of the largest US companies based on total market capitalization. The Russell 1000 Index represents an index of securities that reflect the market sectors in which the fund invests. The Russell 1000 Index measures the performance of roughly 1,000 US large-cap companies. The blended benchmark represents a 60/40 weighted blend of the Russell 1000 Index and the Bloomberg US Treasury Bills 1-3 Month Index. The Bloomberg US Treasury Bills 1-3 Month Index measures the performance of US Treasury bills with time to maturity between 1 and 3 months. The blended benchmark is utilized by the Adviser for measuring performance. The indexes are unmanaged, market capitalization weighted, include net reinvested dividends, do not reflect fees or expenses (which would lower the return), and are not available for direct investment.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading]	rr_BarChartHeading	CLASS I ANNUAL TOTAL RETURN-YEARS ENDED 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 4Q 2020, +13.78% Worst Quarter: 1Q 2020, -23.39%
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/2024
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table show two aspects of the fund: volatility and performance. The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year. The table shows the fund’s average annual total returns for certain time periods compared to the returns of a broad-based securities index and two supplemental indexes. The bar chart and table provide some indication of the risks of investing in the fund. Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available by visiting www.diamond-hill.com or by calling 1-888-226-5595.
Diamond Hill Long-Short Fund | Russell 3000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 3000 Index
1 Year	rr_AverageAnnualReturnYear01	23.81%
5 Years	rr_AverageAnnualReturnYear05	13.86%
10 Years	rr_AverageAnnualReturnYear10	12.55%
Diamond Hill Long-Short Fund | Russell 1000 Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Russell 1000 Index
1 Year	rr_AverageAnnualReturnYear01	24.51%
5 Years	rr_AverageAnnualReturnYear05	14.28%
10 Years	rr_AverageAnnualReturnYear10	12.87%
Diamond Hill Long-Short Fund | 60% Russell 1000 Index/40% Bloomberg US T-Bills 1-3 Month Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	60% Russell 1000 Index/40% Bloomberg US T-Bills 1-3 Month Index
1 Year	rr_AverageAnnualReturnYear01	16.63%
5 Years	rr_AverageAnnualReturnYear05	9.87%
10 Years	rr_AverageAnnualReturnYear10	8.61%
Diamond Hill Long-Short Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill Long-Short Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill Long-Short Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions. Market uncertainty can increase dramatically, and these conditions may result in disruptions of the global credit markets, periods of reduced liquidity, greater general volatility, volatility of credit spreads, and a contraction of availability of credit and lack of price transparency.
Diamond Hill Long-Short Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual companies will perform as anticipated. The value of an individual company can be more volatile than the market as a whole, and the Adviser’s intrinsic value-oriented approach may fail to produce the intended results. In addition, there is no guarantee that the use of long and short positions will succeed in limiting the fund’s exposure to stock market movements, sector-swings or other risk factors. The strategy used by the fund involves complex securities transactions that involve risks different than direct equity investments.
Diamond Hill Long-Short Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk  The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill Long-Short Fund | Short Sale Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Short Sale Risk  The fund will incur a loss as a result of a short sale if the price of the security sold short increases in value between the date of the short sale and the date on which the fund purchases the security to replace the borrowed security. In addition, a lender may request, or market conditions may dictate, that securities sold short be returned to the lender on short notice, and the fund may have to buy the securities sold short at an unfavorable price. If this occurs, any anticipated gain to the fund may be reduced or eliminated or the short sale may result in a loss. The fund’s losses are potentially unlimited in a short sale transaction. Short sales are speculative transactions and involve special risks, including greater reliance on the Adviser’s ability to accurately anticipate the future value of a security.
Diamond Hill Long-Short Fund | Small Cap And Mid Cap Company Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Small Cap and Mid Cap Company Risk  Investments in small cap and mid cap companies may be riskier than investments in larger, more established companies. The securities of these companies may trade less frequently and in smaller volumes than securities of larger companies. In addition, small cap and mid cap companies may be more vulnerable to economic, market and industry changes. As a result, share price changes may be more sudden or erratic than the prices of other equity securities, especially over the short term. Because smaller companies may have limited product lines, markets or financial resources or may depend on a few key employees, they may be more susceptible to particular economic events or competitive factors than large capitalization companies.
Diamond Hill Long-Short Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DIAMX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.90%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component1 Other Expenses	rr_Component1OtherExpensesOverAssets	0.21%
Component2 Other Expenses	rr_Component2OtherExpensesOverAssets	0.39%
Other Expenses (as a percentage of Assets):	rr_OtherExpensesOverAssets	0.60%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	1.75%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 178
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	551
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	949
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 2,062
Label	rr_AverageAnnualReturnLabel	Investor Before Taxes
1 Year	rr_AverageAnnualReturnYear01	9.94%
5 Years	rr_AverageAnnualReturnYear05	5.89%
10 Years	rr_AverageAnnualReturnYear10	5.67%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jun. 30, 2000
Diamond Hill Long-Short Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHLSX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.90%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component1 Other Expenses	rr_Component1OtherExpensesOverAssets	0.17%
Component2 Other Expenses	rr_Component2OtherExpensesOverAssets	0.39%
Other Expenses (as a percentage of Assets):	rr_OtherExpensesOverAssets	0.56%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	1.46%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 149
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	462
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	797
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,746
Annual Return 2015	rr_AnnualReturn2015	(1.40%)
Annual Return 2016	rr_AnnualReturn2016	10.55%
Annual Return 2017	rr_AnnualReturn2017	5.99%
Annual Return 2018	rr_AnnualReturn2018	(7.04%)
Annual Return 2019	rr_AnnualReturn2019	23.11%
Annual Return 2020	rr_AnnualReturn2020	(0.27%)
Annual Return 2021	rr_AnnualReturn2021	19.40%
Annual Return 2022	rr_AnnualReturn2022	(8.45%)
Annual Return 2023	rr_AnnualReturn2023	12.40%
Annual Return 2024	rr_AnnualReturn2024	10.26%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	13.78%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(23.39%)
Label	rr_AverageAnnualReturnLabel	Class I Before Taxes
1 Year	rr_AverageAnnualReturnYear01	10.26%
5 Years	rr_AverageAnnualReturnYear05	6.20%
10 Years	rr_AverageAnnualReturnYear10	5.97%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 31, 2005
Diamond Hill Long-Short Fund | Class I | After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	7.80%
5 Years	rr_AverageAnnualReturnYear05	4.69%
10 Years	rr_AverageAnnualReturnYear10	4.79%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 31, 2005
Diamond Hill Long-Short Fund | Class I | After Taxes on Distributions and Sales
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	7.55%
5 Years	rr_AverageAnnualReturnYear05	4.67%
10 Years	rr_AverageAnnualReturnYear10	4.59%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jan. 31, 2005
Diamond Hill Long-Short Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DIAYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.90%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component1 Other Expenses	rr_Component1OtherExpensesOverAssets	0.05%
Component2 Other Expenses	rr_Component2OtherExpensesOverAssets	0.39%
Other Expenses (as a percentage of Assets):	rr_OtherExpensesOverAssets	0.44%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	1.34%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 136
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	425
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	734
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,613
Label	rr_AverageAnnualReturnLabel	Class Y Before Taxes
1 Year	rr_AverageAnnualReturnYear01	10.38%
5 Years	rr_AverageAnnualReturnYear05	6.32%
10 Years	rr_AverageAnnualReturnYear10	6.09%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2011
Diamond Hill International Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill International Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill International Fund is to provide long-term capital appreciation.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 29% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	29.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The fund, under normal market conditions, invests its assets primarily in non-U.S. equity securities of companies of any size that Diamond Hill Capital Management, Inc. (the “Adviser”) believes are undervalued. Equity securities consist of common and preferred stocks. Under normal market conditions, the fund will invest at least 80% of its net assets in securities issued by companies (i) that are headquartered or have their principal place of business outside the U.S., (ii) whose primary trading markets are outside the U.S. or (iii) that have at least 50% of their assets in, or expect to derive at least 50% of their total revenues or profits from, goods or services produced in or sales made in countries outside the U.S. The fund intends to diversify its investments across different countries and regions, including emerging markets. Emerging market countries include those generally recognized to be an emerging market country by the international financial community; classified by the United Nations as a developing country; or classified as an emerging market country by MSCI or other index or data provider. The Adviser focuses on estimating a company’s value independent of its current stock price. To estimate a company’s value, the Adviser concentrates on the fundamental economic drivers of the business. The primary focus is on “bottom-up” analysis, which takes into consideration earnings, revenue growth, operating margins and other economic factors. The Adviser also considers the level of industry competition, regulatory factors, the threat of technological obsolescence, and a variety of other industry factors. If the Adviser’s estimate of a company’s value differs sufficiently from the current market price, the company may be an attractive investment opportunity. In constructing a portfolio of securities, the Adviser is not constrained by the sector or industry weights in the benchmark. The Adviser relies on individual stock selection and discipline in the investment process to add value. The highest portfolio security weights are assigned to companies where the Adviser has the highest level of confidence. Once a stock is selected, the Adviser continues to monitor the company’s strategies, financial performance and competitive environment. The Adviser may sell a security as it reaches the Adviser’s estimate of the company’s value if it believes that the company’s earnings, revenue growth, operating margin or other economic factors are deteriorating, or if it identifies a stock that it believes offers a better investment opportunity.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	The fund, under normal market conditions, invests its assets primarily in non-U.S. equity securities of companies of any size that Diamond Hill Capital Management, Inc. (the “Adviser”) believes are undervalued. Equity securities consist of common and preferred stocks. Under normal market conditions, the fund will invest at least 80% of its net assets in securities issued by companies (i) that are headquartered or have their principal place of business outside the U.S., (ii) whose primary trading markets are outside the U.S. or (iii) that have at least 50% of their assets in, or expect to derive at least 50% of their total revenues or profits from, goods or services produced in or sales made in countries outside the U.S. The fund intends to diversify its investments across different countries and regions, including emerging markets. Emerging market countries include those generally recognized to be an emerging market country by the international financial community; classified by the United Nations as a developing country; or classified as an emerging market country by MSCI or other index or data provider.
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the MSCI ACWI ex USA Index. The MSCI ACWI ex USA Index measures the performance of large- and mid-cap stocks in developed (excluding the US) and emerging markets. The MSCI ACWI ex USA Index also represents an index of non-U.S. securities that reflect the market sectors in which the fund invests and is utilized by the Adviser for measuring performance. The index is unmanaged, market capitalization weighted, includes net reinvested dividends, does not reflect fees or expenses (which would lower return), and is not available for direct investment.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the volatility - or variability - of the fund’s annual total returns over time, and shows that fund performance can change from year to year.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	The fund’s and the International Partnership’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future either before or after taxes.
Bar Chart [Heading]	rr_BarChartHeading	CLASS I ANNUAL TOTAL RETURN-YEARS ENDED 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 4Q 2020, +22.69% Worst Quarter: 1Q 2020, -26.28%
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/2024
Performance Table Does Reflect Sales Loads	rr_PerformanceTableDoesReflectSalesLoads	The performance of the International Partnership has been restated to reflect the net expenses and maximum applicable sales charge of the fund for its initial years of investment operations.
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes. After-tax returns prior to five years are not provided because the International Partnership’s tax treatment was different than that of a registered investment company.
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table show two aspects of the fund: volatility and performance. The bar chart shows the volatility - or variability - of the fund’s annual total returns over time, and shows that fund performance can change from year to year. Prior to calendar year 2019, the bar chart and table reflect the past performance of Diamond Hill International Equity Fund, LP (the “International Partnership”), a private fund managed with full investment authority by the Adviser, and provide some indication of the risks of investing in the fund by showing changes in the fund’s performance from year to year over the periods indicated and by showing how the fund’s average annual total returns for the periods indicated compared to a broad-based securities index. The fund is managed in all material respects in a manner equivalent to the management of the International Partnership. The fund’s objectives, policies, guidelines and restrictions are in all material respects equivalent to the International Partnership, and the fund was created for reasons entirely unrelated to the establishment of a performance record. The assets of the International Partnership were converted, based on their value on June 28, 2019, into assets of the fund prior to commencement of operations of the fund. The performance of the International Partnership has been restated to reflect the net expenses and maximum applicable sales charge of the fund for its initial years of investment operations. The International Partnership was not registered under the Investment Company Act of 1940, as amended (the “1940 Act”), and therefore, was not subject to certain investment restrictions imposed by the 1940 Act. If the International Partnership had been registered under the 1940 Act, its performance may have been adversely affected. Performance of the fund prior to calendar year 2019 is measured from December 30, 2016, the inception of the International Partnership, and is not the performance of the fund. The fund’s and the International Partnership’s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future either before or after taxes. Updated performance information is available by visiting www.diamond-hill.com or by calling 1-888-226-5595.
Diamond Hill International Fund | MSCI ACWI ex USA Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	MSCI ACWI ex USA Index
1 Year	rr_AverageAnnualReturnYear01	5.53%
5 Years	rr_AverageAnnualReturnYear05	4.10%
Since Inception	rr_AverageAnnualReturnSinceInception	6.23%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2016
Diamond Hill International Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill International Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill International Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions. Market uncertainty can increase dramatically, and these conditions may result in disruptions of the global credit markets, periods of reduced liquidity, greater general volatility, volatility of credit spreads, and a contraction of availability of credit and lack of price transparency.
Diamond Hill International Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual companies will perform as anticipated. The value of an individual company can be more volatile than the market as a whole, and the Adviser’s intrinsic value-oriented approach may fail to produce the intended results.
Diamond Hill International Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk  The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill International Fund | Non-U.S. And Emerging Markets Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Non-U.S. and Emerging Markets Risk The fund may invest in non-U.S. securities and U.S. securities of companies domiciled in non-U.S. countries that may experience more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies. These companies may be subject to additional risks, including political and economic risks, civil conflicts and war, greater volatility, expropriation and nationalization risks, currency fluctuations, higher transaction costs, delayed settlement, possible non-U.S. controls on investments, and less stringent investor protection and disclosure standards of non-U.S. markets. Trade tensions and sanctions on individuals and companies can contribute to market volatility, which may affect the fund's performance. These risks are magnified in emerging markets as events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. The market for the securities of issuers in emerging markets is typically small and low, and nonexistent trading volumes in those securities may result in a lack of liquidity and price volatility.
Diamond Hill International Fund | Sector Emphasis Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Sector Emphasis Risk The fund, from time to time, may invest 25% or more of its assets in one or more sectors, subjecting the fund to sector emphasis risk. This is the risk that the fund is subject to a greater risk of loss as a result of adverse economic, business or other developments affecting a specific sector in which the fund has a focused position, than if its investments were diversified across a greater number of industry sectors. Some sectors possess particular risks that may not affect other sectors.
Diamond Hill International Fund | Small Cap And Mid Cap Company Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Small Cap and Mid Cap Company Risk Investments in small cap and mid cap companies may be riskier than investments in larger, more established companies. The securities of these companies may trade less frequently and in smaller volumes than securities of larger companies. In addition, small cap and mid cap companies may be more vulnerable to economic, market and industry changes. As a result, share price changes may be more sudden or erratic than the prices of other equity securities, especially over the short term. Because smaller companies may have limited product lines, markets or financial resources or may depend on a few key employees, they may be more susceptible to particular economic events or competitive factors than large capitalization companies.
Diamond Hill International Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHIAX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.65%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component1 Other Expenses	rr_Component1OtherExpensesOverAssets	0.21%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.03%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	1.14%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 116
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	362
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	628
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,386
Label	rr_AverageAnnualReturnLabel	Investor Before Taxes
1 Year	rr_AverageAnnualReturnYear01	3.56%
5 Years	rr_AverageAnnualReturnYear05	4.72%
Since Inception	rr_AverageAnnualReturnSinceInception	7.63%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2016
Diamond Hill International Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHIIX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.65%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component1 Other Expenses	rr_Component1OtherExpensesOverAssets	0.17%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.03%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.85%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 87
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	271
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	471
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,049
Annual Return 2017	rr_AnnualReturn2017	30.76%
Annual Return 2018	rr_AnnualReturn2018	(10.71%)
Annual Return 2019	rr_AnnualReturn2019	23.56%
Annual Return 2020	rr_AnnualReturn2020	6.74%
Annual Return 2021	rr_AnnualReturn2021	12.74%
Annual Return 2022	rr_AnnualReturn2022	(13.51%)
Annual Return 2023	rr_AnnualReturn2023	18.12%
Annual Return 2024	rr_AnnualReturn2024	3.92%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	22.69%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(26.28%)
Label	rr_AverageAnnualReturnLabel	Class I Before Taxes
1 Year	rr_AverageAnnualReturnYear01	3.92%
5 Years	rr_AverageAnnualReturnYear05	5.02%
Since Inception	rr_AverageAnnualReturnSinceInception	7.94%
Diamond Hill International Fund | Class I | After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	3.55%
5 Years	rr_AverageAnnualReturnYear05	4.56%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2016
Diamond Hill International Fund | Class I | After Taxes on Distributions and Sales
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	2.59%
5 Years	rr_AverageAnnualReturnYear05	3.88%
Diamond Hill International Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHIYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.65%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component1 Other Expenses	rr_Component1OtherExpensesOverAssets	0.05%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.03%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.73%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 75
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	233
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	406
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 906
Label	rr_AverageAnnualReturnLabel	Class Y Before Taxes
1 Year	rr_AverageAnnualReturnYear01	4.03%
5 Years	rr_AverageAnnualReturnYear05	5.14%
Since Inception	rr_AverageAnnualReturnSinceInception	8.06%
Inception Date	rr_AverageAnnualReturnInceptionDate	Dec. 30, 2016
Diamond Hill Short Duration Securitized Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill Short Duration Securitized Bond Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill Short Duration Securitized Bond Fund is to maximize total return consistent with the preservation of capital.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 49% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	49.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the fund invests at least 80% of its net assets at the time of purchase in securitized bond investments. Securitized bond investments are also referred to as “structured product securities” or “structured products.” Securitized bond investments include interests in pools of secured loans backed by commercial real estate, residential real estate, commercial or consumer loans, and securitizations such as agency and non-agency mortgage-backed securities ("MBS") (including commercial mortgage-backed securities ("CMBS"), residential mortgage-backed securities ("RMBS"), and collateralized mortgage obligations ("CMOs")), asset-backed securities ("ABS"), and other similar securities and related instruments. Agency MBS are issued or guaranteed by the US government, its agencies or instrumentalities, which include mortgage pass-through securities representing interests in pools of mortgage loans issued or guaranteed by the Government National Mortgage Association ("GNMA" or “Ginnie Mae”), the Federal National Mortgage Association ("FNMA" or “Fannie Mae”), the Student Loan Marketing Association ("SLMA" or “Sallie Mae”) or the Federal Home Loan Mortgage Corporation ("FHLMC" or “Freddie Mac”). The fund may also invest in other fixed income instruments, which include bonds, debt or credit securities and other similar instruments issued by various US and non-US public or private sector entities at the discretion of the Diamond Hill Capital Management, Inc. (the “Adviser”). Under normal circumstances, the fund will maintain an average portfolio duration of less than three, although under certain market conditions, such as periods of significant volatility in interest rates and spreads, the fund’s average duration may be longer than three. Duration is an approximate measure of a bond's price sensitivity to changes in interest rates. For instance, a duration of “three” means that a security’s or portfolio’s price would be expected to decrease by approximately 3% with a 1% increase in interest rates (assuming a parallel shift in yield curve). The fund may invest in individual fixed income securities with effective durations in excess of three, provided, however, such investments are made within the constraints above. The fund may invest up to 15% of its assets in below investment grade securities, including those referred to as “junk bonds” (or the unrated equivalent) at the time of purchase. When selecting securities for the fund, the Adviser performs a risk/reward analysis that includes an evaluation of credit risk, interest rate risk, prepayment risk, and the legal and technical structure of the security. The Adviser will attempt to take advantage of inefficiencies that it believes exist in the fixed income markets, such as the diversity of participants working with different objectives and repeated temporary supply-demand imbalances. The Adviser seeks to invest in securities that the Adviser expects to offer attractive prospects for income and/or capital appreciation in relation to the risk borne.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	Under normal market conditions, the fund invests at least 80% of its net assets at the time of purchase in securitized bond investments. Securitized bond investments are also referred to as “structured product securities” or “structured products.”
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the Bloomberg US Aggregate Bond Index. The Bloomberg US Aggregate Bond Index measures the performance of investment grade, fixed-rate taxable bond market and includes government and corporate bonds, agency mortgage-backed, asset-backed and commercial mortgage-backed securities (agency and non-agency). The Bloomberg US 1-3 Year Government/Credit Index represents the index utilized by the Adviser for measuring performance. The Bloomberg US 1-3 Year Government/Credit Index measures the performance of investment grade government and corporate bonds with maturities of one to three years. The indexes are unmanaged, include net reinvested dividends, do not reflect fees or expenses (which would lower the return), and are not available for direct investment.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading]	rr_BarChartHeading	CLASS I ANNUAL TOTAL RETURN-YEARS ENDED 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 2Q 2020, +5.26% Worst Quarter: 1Q 2020, -7.64%
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/24
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table show two aspects of the fund: volatility and performance. The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year. The table shows the fund’s average annual total returns for certain time periods compared to the returns of a broad-based securities index and a supplemental index. The bar chart and table provide some indication of the risks of investing in the fund. Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available by visiting www.diamond-hill.com or by calling 1-888-226-5595.
Diamond Hill Short Duration Securitized Bond Fund | Bloomberg US Aggregate Bond Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Bloomberg US Aggregate Bond Index
1 Year	rr_AverageAnnualReturnYear01	1.25%
5 Years	rr_AverageAnnualReturnYear05	(0.33%)
Since Inception	rr_AverageAnnualReturnSinceInception	0.82%
Diamond Hill Short Duration Securitized Bond Fund | Bloomberg US 1-3 Year Government/Credit Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Bloomberg US 1-3 Year Government/Credit Index
1 Year	rr_AverageAnnualReturnYear01	4.36%
5 Years	rr_AverageAnnualReturnYear05	1.58%
Since Inception	rr_AverageAnnualReturnSinceInception	1.63%
Diamond Hill Short Duration Securitized Bond Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill Short Duration Securitized Bond Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill Short Duration Securitized Bond Fund | Asset-Backed, Mortgage-Related And Mortgage-Backed Securities Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Asset-Backed, Mortgage-Related and Mortgage-Backed Securities Risk The fund may invest in asset-backed, mortgage-related and mortgage-backed securities, including so-called “sub-prime” mortgages that are subject to certain other risks including prepayment and call risks. When mortgages and other obligations are prepaid and when securities are called, the fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield. In periods of rising interest rates, the fund may be subject to extension risk, and may receive principal later than expected. As a result, in periods of rising interest rates, the fund may exhibit additional volatility. During periods of difficult or frozen credit markets, significant changes in interest rates, or deteriorating economic conditions, such securities may decline in value, face valuation difficulties, become more volatile and/or become illiquid. Collateralized mortgage obligations (“CMOs”) and stripped mortgage-backed securities, including those structured as interest only (“IOs”) and principal only (“POs”), are more volatile and may be more sensitive to the rate of prepayments than other mortgage-related securities. CMOs are issued in multiple classes, and each class may have its own interest rate and/or final payment date. A class with an earlier final payment date may have certain preferences in receiving principal payments or earning interest. As a result, the value of some classes in which the fund invests may be more volatile and may be subject to higher risk of non-payment. The risk of default, as described under “Credit Risk”, for “sub-prime” mortgages is generally higher than other types of mortgage-backed securities. The structure of some of these securities may be complex and there may be less available information than other types of debt securities. The values of IO and PO mortgage-backed securities are more volatile than other types of mortgage-related securities. They are very sensitive not only to changes in interest rates, but also to the rate of prepayments. A rapid or unexpected increase in prepayments can significantly depress the price of interest-only securities, while a rapid or unexpected decrease could have the same effect on principal-only securities. In addition, because there may be a drop in trading volume, an inability to find a ready buyer, or the imposition of legal restrictions on the resale of securities, these instruments may be illiquid. The fund will be exposed to additional risk to the extent that it uses inverse floaters and inverse IOs, which are debt securities with interest rates that reset in the opposite direction from the market rate to which the security is indexed. These securities are more volatile and more sensitive to interest rate changes than other types of debt securities. If interest rates move in a manner not anticipated by the Adviser, the fund could lose all or substantially all of its investment in inverse IOs.
Diamond Hill Short Duration Securitized Bond Fund | Consumer Loans Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Consumer Loans Risk Investments in consumer loans expose the fund to additional risks beyond those normally associated with more traditional debt instruments. The fund’s ability to receive payments in connection with the loan depends primarily on the financial condition of the borrower and whether or not a loan is secured by collateral, although there is no assurance that the collateral securing a loan will be sufficient to satisfy the loan obligation. In addition, bank loans often have contractual restrictions on resale, which can delay the sale and adversely impact the sale price. Transactions involving bank loans may have significantly longer settlement periods than more traditional investments (settlement can take longer than 7 days) and often involve borrowers whose financial condition is troubled or highly leveraged, which increases the risk that the fund may not receive its proceeds in a timely manner or that the fund may incur losses in order to pay redemption proceeds to its shareholders. In addition, loans are not registered under the federal securities laws like stocks and bonds, so investors in loans have less protection against improper practices than investors in registered securities.
Diamond Hill Short Duration Securitized Bond Fund | Credit Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Credit Risk  There is a risk that issuers and counterparties will not make payments on securities and repurchase agreements held by a fund. Such default could result in losses to the fund. In addition, the credit quality of securities held by the fund may be lowered if an issuer’s financial condition changes. Lower credit quality may lead to greater volatility in the price of a security and in shares of the fund. Lower credit quality also may affect liquidity and make it difficult for the fund to sell the security.
Diamond Hill Short Duration Securitized Bond Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions. Market uncertainty can increase dramatically, and these conditions may result in disruptions of the global credit markets, periods of reduced liquidity, greater general volatility, volatility of credit spreads, and a contraction of availability of credit and lack of price transparency. In particular, certain types of securitized bond investments may come under stress due to economic factors and trends, such as higher than expected interest rates, property vacancies and consumer stress.
Diamond Hill Short Duration Securitized Bond Fund | Government Securities Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Government Securities Risk The fund may invest in securities issued or guaranteed by the U.S. government or its agencies and instrumentalities. These securities may be backed by the credit of the government as a whole or only by the issuing agency. U.S. Treasury bonds, notes, and bills and some agency securities, such as those issued by the Federal Housing Administration and Ginnie Mae, are backed by the full faith and credit of the U.S. government as to payment of principal and interest and are the highest quality government securities. Other securities issued by U.S. government agencies or instrumentalities, such as securities issued by the Federal Home Loan Banks and Freddie Mac, are supported only by the credit of the agency that issued them, and not by the U.S. government. Securities issued by the Federal Farm Credit System, the Federal Land Banks, and Fannie Mae are supported by the agency’s right to borrow money from the U.S. Treasury under certain circumstances, but are not backed by the full faith and credit of the U.S. government. No assurance can be given that the U.S. government would provide financial support to its agencies and instrumentalities if not required to do so by law.
Diamond Hill Short Duration Securitized Bond Fund | High Yield Securities Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	High Yield Securities Risk  The fund will purchase fixed income securities rated below the investment grade category. Securities in this rating category are speculative. Changes in economic conditions or other circumstances may have a greater effect on the ability of issuers of these securities to make principal and interest payments than they do on issuers of higher grade securities.
Diamond Hill Short Duration Securitized Bond Fund | Interest Rate Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Interest Rate Risk  The fund invests in fixed income securities. These securities will increase or decrease in value based on changes in interest rates. If rates increase, the value of the fund’s fixed income securities generally declines. On the other hand, if rates fall, the value of the fixed income securities generally increases. Your investment will decline in value if the value of the fund’s investments decreases.
Diamond Hill Short Duration Securitized Bond Fund | Inflation Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Inflation Risk  Because inflation reduces the purchasing power of income produced by existing fixed income securities, the prices at which fixed income securities trade will be reduced to compensate for the fact that the income they produce is worth less. This potential decrease in market value would be the measure of the inflation risk incurred by the fund.
Diamond Hill Short Duration Securitized Bond Fund | Liquidity Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Liquidity Risk The fund may not be able to purchase or sell a security in a timely manner or at desired prices or achieve its desired weighting in a security. Liquidity risk may result from the lack of an active market or a reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified during times of market stress. The fund may not be able to meet the requests to redeem fund shares without significant dilution of remaining investors' interest in the fund.
Diamond Hill Short Duration Securitized Bond Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual investments will perform as anticipated.
Diamond Hill Short Duration Securitized Bond Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill Short Duration Securitized Bond Fund | Non-U.S. And Emerging Markets Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Non-U.S. and Emerging Markets Risk The fund may invest in non-U.S. securities and U.S. securities of companies domiciled in non-U.S. countries that may experience more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies. These companies may be subject to additional risks, including political and economic risks, civil conflicts and war, greater volatility, expropriation and nationalization risks, currency fluctuations, higher transaction costs, delayed settlement, possible non-U.S. controls on investments, and less stringent investor protection and disclosure standards of non-U.S. markets. The departure of one or more other countries from the European Union may have significant political and financial consequences for global markets. These risks are magnified in emerging markets as events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. The market for the securities of issuers in emerging markets is typically small and low, and nonexistent trading volumes in those securities may result in a lack of liquidity and price volatility.
Diamond Hill Short Duration Securitized Bond Fund | Prepayment And Call Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Prepayment and Call Risk The issuer of certain securities may repay principal in advance, especially when yields fall. Changes in the rate at which prepayments occur can affect the return on investment of these securities. When debt obligations are prepaid or when securities are called, the fund may have to reinvest in securities with a lower yield. The fund also may fail to recover additional amounts (i.e., premiums) paid for securities with higher coupons, resulting in an unexpected capital loss.
Diamond Hill Short Duration Securitized Bond Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHEAX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.35%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.21%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.82%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 84
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	262
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	455
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 1,014
Label	rr_AverageAnnualReturnLabel	Investor Before Taxes
1 Year	rr_AverageAnnualReturnYear01	9.14%
5 Years	rr_AverageAnnualReturnYear05	3.75%
Since Inception	rr_AverageAnnualReturnSinceInception	3.68%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 05, 2016
Diamond Hill Short Duration Securitized Bond Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHEIX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.35%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.17%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.53%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 54
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	170
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	296
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 665
Annual Return 2017	rr_AnnualReturn2017	4.33%
Annual Return 2018	rr_AnnualReturn2018	3.18%
Annual Return 2019	rr_AnnualReturn2019	4.85%
Annual Return 2020	rr_AnnualReturn2020	3.08%
Annual Return 2021	rr_AnnualReturn2021	2.74%
Annual Return 2022	rr_AnnualReturn2022	(3.38%)
Annual Return 2023	rr_AnnualReturn2023	8.91%
Annual Return 2024	rr_AnnualReturn2024	9.33%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	5.26%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2020
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(7.64%)
Label	rr_AverageAnnualReturnLabel	Class I Before Taxes
1 Year	rr_AverageAnnualReturnYear01	9.33%
5 Years	rr_AverageAnnualReturnYear05	4.03%
Since Inception	rr_AverageAnnualReturnSinceInception	3.98%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 05, 2016
Diamond Hill Short Duration Securitized Bond Fund | Class I | After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	6.57%
5 Years	rr_AverageAnnualReturnYear05	2.23%
Since Inception	rr_AverageAnnualReturnSinceInception	2.30%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 05, 2016
Diamond Hill Short Duration Securitized Bond Fund | Class I | After Taxes on Distributions and Sales
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	5.46%
5 Years	rr_AverageAnnualReturnYear05	2.29%
Since Inception	rr_AverageAnnualReturnSinceInception	2.31%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 05, 2016
Diamond Hill Short Duration Securitized Bond Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHEYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.35%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.05%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.41%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 42
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	132
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	230
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 518
Label	rr_AverageAnnualReturnLabel	Class Y Before Taxes
1 Year	rr_AverageAnnualReturnYear01	9.56%
5 Years	rr_AverageAnnualReturnYear05	4.18%
Since Inception	rr_AverageAnnualReturnSinceInception	4.11%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 05, 2016
Diamond Hill Core Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill Core Bond Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill Core Bond Fund is to maximize total return consistent with the preservation of capital.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 24% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	24.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the fund intends to provide total return by investing at least 80% of its net assets at the time of purchase (plus any amounts borrowed for investment purposes) in a diversified portfolio of investment grade, fixed income securities, including bonds, debt securities and other similar U.S. dollar-denominated instruments issued by various U.S. public- or private-sector entities, by non-U.S. corporations or U.S. affiliates of non-U.S. corporations, including those in emerging markets. The fund may invest a significant portion or all of its assets in interests in pools of mortgage-related and mortgage-backed securities at the discretion of Diamond Hill Capital Management, Inc. (the “Adviser”). Under normal circumstances, the fund will maintain an average portfolio duration of plus or minus 20% of the duration of the Bloomberg US Aggregate Bond Index. The Bloomberg US Aggregate Bond Index is a broad-based index that represents the investment grade, US dollar-denominated fixed-rate taxable bond market. Duration of the Bloomberg US Aggregate Bond Index was 6.08 as of its last reconstitution date of January 31, 2025. Duration is an approximate measure of a bond’s price sensitivity to changes in interest rates. For instance, a duration of “three” means that a security’s or portfolio’s price would be expected to decrease by approximately 3% with a 1% increase in interest rates (assuming a parallel shift in yield curve). When selecting securities for the fund, the Adviser performs a bottom-up, research-based approach in seeking to identify opportunities. In buying and selling securities for the fund, the Adviser performs a risk/reward analysis that includes an evaluation of credit risk, interest rate risk, prepayment risk, and the legal and technical structure of the security. The Adviser will attempt to take advantage of inefficiencies that it believes exist in the fixed-income markets, such as the diversity of participants working with different objectives and repeated temporary supply-demand imbalances. The Adviser seeks to invest in securities that the Adviser expects to offer attractive prospects for current income and/or capital appreciation in relation to the risk borne.
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	Under normal market conditions, the fund intends to provide total return by investing at least 80% of its net assets at the time of purchase (plus any amounts borrowed for investment purposes) in a diversified portfolio of investment grade, fixed income securities, including bonds, debt securities and other similar U.S. dollar-denominated instruments issued by various U.S. public- or private-sector entities, by non-U.S. corporations or U.S. affiliates of non-U.S. corporations, including those in emerging markets. The fund may invest a significant portion or all of its assets in interests in pools of mortgage-related and mortgage-backed securities at the discretion of Diamond Hill Capital Management, Inc. (the “Adviser”).
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the Bloomberg US Aggregate Bond Index.The Bloomberg US Aggregate Bond Index measures the performance of investment grade, fixed-rate taxable bond market and includes government and corporate bonds, agency mortgage-backed, asset-backed and commercial mortgage-backed securities (agency and non-agency). The Bloomberg US Aggregate Bond Index also represents the index utilized by the Adviser for measuring performance. The index is unmanaged, includes net reinvested dividends, does not reflect fees or expenses (which would lower the return), and is not available for direct investment.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year.
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance.
Bar Chart [Heading]	rr_BarChartHeading	CLASS I ANNUAL TOTAL RETURN-YEARS ENDED 12/31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter: 4Q 2023, +6.41% Worst Quarter: 1Q 2022, -4.99%
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS AS OF 12/31/24
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred	rr_PerformanceTableNotRelevantToTaxDeferred	Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns depend on a shareholder's tax situation and may differ from those shown. After-tax returns are not relevant for shareholders who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. After-tax returns are shown for Class I shares only and will vary from the after-tax returns for the other share classes.
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The following bar chart and table show two aspects of the fund: volatility and performance. The bar chart shows the volatility — or variability — of the fund’s annual total returns over time, and shows that fund performance can change from year to year. The table shows the fund’s average annual total returns for certain time periods compared to the returns of a broad-based securities index. The bar chart and table provide some indication of the risks of investing in the fund. Of course, the fund’s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available by visiting www.diamond-hill.com or by calling 1-888-226-5595.
Diamond Hill Core Bond Fund | Bloomberg US Aggregate Bond Index
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	Bloomberg US Aggregate Bond Index
1 Year	rr_AverageAnnualReturnYear01	1.25%
5 Years	rr_AverageAnnualReturnYear05	(0.33%)
Since Inception	rr_AverageAnnualReturnSinceInception	0.82%
Diamond Hill Core Bond Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill Core Bond Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill Core Bond Fund | Asset-Backed, Mortgage-Related And Mortgage-Backed Securities Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Asset-Backed, Mortgage-Related and Mortgage-Backed Securities Risk The fund may invest in asset-backed, mortgage-related and mortgage-backed securities, including so-called “sub-prime” mortgages that are subject to certain other risks including prepayment and call risks. When mortgages and other obligations are prepaid and when securities are called, the fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield. In periods of rising interest rates, the fund may be subject to extension risk, and may receive principal later than expected. As a result, in periods of rising interest rates, the fund may exhibit additional volatility. During periods of difficult or frozen credit markets, significant changes in interest rates, or deteriorating economic conditions, such securities may decline in value, face valuation difficulties, become more volatile and/or become illiquid. Collateralized mortgage obligations (“CMOs”) and stripped mortgage-backed securities, including those structured as interest only (“IOs”) and principal only (“POs”), are more volatile and may be more sensitive to the rate of prepayments than other mortgage-related securities. CMOs are issued in multiple classes, and each class may have its own interest rate and/or final payment date. A class with an earlier final payment date may have certain preferences in receiving principal payments or earning interest. As a result, the value of some classes in which the fund invests may be more volatile and may be subject to higher risk of non-payment. The risk of default, as described under “Credit Risk”, for “sub-prime” mortgages is generally higher than other types of mortgage-backed securities. The structure of some of these securities may be complex and there may be less available information than other types of debt securities. The values of IO and PO mortgage-backed securities are more volatile than other types of mortgage-related securities. They are very sensitive not only to changes in interest rates, but also to the rate of prepayments. A rapid or unexpected increase in prepayments can significantly depress the price of interest-only securities, while a rapid or unexpected decrease could have the same effect on principal-only securities. In addition, because there may be a drop in trading volume, an inability to find a ready buyer, or the imposition of legal restrictions on the resale of securities, these instruments may be illiquid. The fund will be exposed to additional risk to the extent that it uses inverse floaters and inverse IOs, which are debt securities with interest rates that reset in the opposite direction from the market rate to which the security is indexed. These securities are more volatile and more sensitive to interest rate changes than other types of debt securities. If interest rates move in a manner not anticipated by the Adviser, the fund could lose all or substantially all of its investment in inverse IOs.
Diamond Hill Core Bond Fund | Consumer Loans Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Consumer Loans Risk Investments in consumer loans expose the fund to additional risks beyond those normally associated with more traditional debt instruments. The fund’s ability to receive payments in connection with the loan depends primarily on the financial condition of the borrower and whether or not a loan is secured by collateral, although there is no assurance that the collateral securing a loan will be sufficient to satisfy the loan obligation. In addition, bank loans often have contractual restrictions on resale, which can delay the sale and adversely impact the sale price. Transactions involving bank loans may have significantly longer settlement periods than more traditional investments (settlement can take longer than 7 days) and often involve borrowers whose financial condition is troubled or highly leveraged, which increases the risk that the fund may not receive its proceeds in a timely manner or that the fund may incur losses in order to pay redemption proceeds to its shareholders. In addition, loans are not registered under the federal securities laws like stocks and bonds, so investors in loans have less protection against improper practices than investors in registered securities.
Diamond Hill Core Bond Fund | Credit Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Credit Risk  There is a risk that issuers and counterparties will not make payments on securities and repurchase agreements held by a fund. Such default could result in losses to the fund. In addition, the credit quality of securities held by the fund may be lowered if an issuer’s financial condition changes. Lower credit quality may lead to greater volatility in the price of a security and in shares of the fund. Lower credit quality also may affect liquidity and make it difficult for the fund to sell the security.
Diamond Hill Core Bond Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions. Market uncertainty can increase dramatically, and these conditions may result in disruptions of the global credit markets, periods of reduced liquidity, greater general volatility, volatility of credit spreads, and a contraction of availability of credit and lack of price transparency. In particular, certain types of securitized bond investments may come under stress due to economic factors and trends, such as higher than expected interest rates, property vacancies and consumer stress.
Diamond Hill Core Bond Fund | Government Securities Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Government Securities Risk The fund may invest in securities issued or guaranteed by the U.S. government or its agencies and instrumentalities. These securities may be backed by the credit of the government as a whole or only by the issuing agency. U.S. Treasury bonds, notes, and bills and some agency securities, such as those issued by the Federal Housing Administration and Ginnie Mae, are backed by the full faith and credit of the U.S. government as to payment of principal and interest and are the highest quality government securities. Other securities issued by U.S. government agencies or instrumentalities, such as securities issued by the Federal Home Loan Banks and Freddie Mac, are supported only by the credit of the agency that issued them, and not by the U.S. government. Securities issued by the Federal Farm Credit System, the Federal Land Banks, and Fannie Mae are supported by the agency’s right to borrow money from the U.S. Treasury under certain circumstances, but are not backed by the full faith and credit of the U.S. government. No assurance can be given that the U.S. government would provide financial support to its agencies and instrumentalities if not required to do so by law.
Diamond Hill Core Bond Fund | Interest Rate Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Interest Rate Risk  The fund invests in fixed income securities. These securities will increase or decrease in value based on changes in interest rates. If rates increase, the value of the fund’s fixed income securities generally declines. On the other hand, if rates fall, the value of the fixed income securities generally increases. Your investment will decline in value if the value of the fund’s investments decreases.
Diamond Hill Core Bond Fund | Inflation Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Inflation Risk  Because inflation reduces the purchasing power of income produced by existing fixed income securities, the prices at which fixed income securities trade will be reduced to compensate for the fact that the income they produce is worth less. This potential decrease in market value would be the measure of the inflation risk incurred by the fund.
Diamond Hill Core Bond Fund | Liquidity Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Liquidity Risk The fund may not be able to purchase or sell a security in a timely manner or at desired prices or achieve its desired weighting in a security. Liquidity risk may result from the lack of an active market or a reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified during times of market stress. The fund may not be able to meet the requests to redeem fund shares without significant dilution of remaining investors' interest in the fund.
Diamond Hill Core Bond Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual investments will perform as anticipated.
Diamond Hill Core Bond Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill Core Bond Fund | Non-U.S. And Emerging Markets Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Non-U.S. and Emerging Markets Risk The fund may invest in non-U.S. securities and U.S. securities of companies domiciled in non-U.S. countries that may experience more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S. companies. These companies may be subject to additional risks, including political and economic risks, civil conflicts and war, greater volatility, expropriation and nationalization risks, currency fluctuations, higher transaction costs, delayed settlement, possible non-U.S. controls on investments, and less stringent investor protection and disclosure standards of non-U.S. markets. The departure of one or more other countries from the European Union may have significant political and financial consequences for global markets. These risks are magnified in emerging markets as events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. The market for the securities of issuers in emerging markets is typically small and low, and nonexistent trading volumes in those securities may result in a lack of liquidity and price volatility.
Diamond Hill Core Bond Fund | Prepayment And Call Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Prepayment and Call Risk The issuer of certain securities may repay principal in advance, especially when yields fall. Changes in the rate at which prepayments occur can affect the return on investment of these securities. When debt obligations are prepaid or when securities are called, the fund may have to reinvest in securities with a lower yield. The fund also may fail to recover additional amounts (i.e., premiums) paid for securities with higher coupons, resulting in an unexpected capital loss.
Diamond Hill Core Bond Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHRAX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.30%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.21%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.76%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 78
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	243
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	422
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 942
Label	rr_AverageAnnualReturnLabel	Investor Before Taxes
1 Year	rr_AverageAnnualReturnYear01	3.17%
5 Years	rr_AverageAnnualReturnYear05	0.48%
Since Inception	rr_AverageAnnualReturnSinceInception	1.48%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 05, 2016
Diamond Hill Core Bond Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHRIX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.30%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.17%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.47%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 48
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	151
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	263
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 591
Annual Return 2017	rr_AnnualReturn2017	4.17%
Annual Return 2018	rr_AnnualReturn2018	1.59%
Annual Return 2019	rr_AnnualReturn2019	7.93%
Annual Return 2020	rr_AnnualReturn2020	7.94%
Annual Return 2021	rr_AnnualReturn2021	(0.99%)
Annual Return 2022	rr_AnnualReturn2022	(11.84%)
Annual Return 2023	rr_AnnualReturn2023	6.62%
Annual Return 2024	rr_AnnualReturn2024	3.40%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Best Quarter:
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Dec. 31, 2023
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	6.41%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Worst Quarter:
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Mar. 31, 2022
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(4.99%)
Label	rr_AverageAnnualReturnLabel	Class I Before Taxes
1 Year	rr_AverageAnnualReturnYear01	3.40%
5 Years	rr_AverageAnnualReturnYear05	0.76%
Since Inception	rr_AverageAnnualReturnSinceInception	1.77%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 05, 2016
Diamond Hill Core Bond Fund | Class I | After Taxes on Distributions
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions
1 Year	rr_AverageAnnualReturnYear01	1.31%
5 Years	rr_AverageAnnualReturnYear05	(0.64%)
Since Inception	rr_AverageAnnualReturnSinceInception	0.48%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 05, 2016
Diamond Hill Core Bond Fund | Class I | After Taxes on Distributions and Sales
Risk/Return:	rr_RiskReturnAbstract
Label	rr_AverageAnnualReturnLabel	After Taxes on Distributions and Sale of Fund Shares
1 Year	rr_AverageAnnualReturnYear01	1.99%
5 Years	rr_AverageAnnualReturnYear05	(0.01%)
Since Inception	rr_AverageAnnualReturnSinceInception	0.80%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 05, 2016
Diamond Hill Core Bond Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHRYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.30%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.05%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.35%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 36
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	113
Expense Example, with Redemption, 5 Years	rr_ExpenseExampleYear05	197
Expense Example, with Redemption, 10 Years	rr_ExpenseExampleYear10	$ 443
Label	rr_AverageAnnualReturnLabel	Class Y Before Taxes
1 Year	rr_AverageAnnualReturnYear01	3.53%
5 Years	rr_AverageAnnualReturnYear05	0.86%
Since Inception	rr_AverageAnnualReturnSinceInception	1.88%
Inception Date	rr_AverageAnnualReturnInceptionDate	Jul. 05, 2016
Diamond Hill Core Plus Bond Fund
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Diamond Hill Core Plus Bond Fund
Objective [Heading]	rr_ObjectiveHeading	Investment Objective
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The investment objective of the Diamond Hill Core Plus Bond Fund is to maximize total return consistent with the preservation of capital.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses of the Fund
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold 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 tables and examples below.
Shareholder Fees Caption [Text]	rr_ShareholderFeesCaption	SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text]	rr_OperatingExpensesCaption	ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	PORTFOLIO TURNOVER
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the fund’s performance. During the period from the fund's commencement of operations on October 15, 2024, through the end of its most recent fiscal year, the fund’s portfolio turnover rate was 13% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	13.00%
Expense Example [Heading]	rr_ExpenseExampleHeading	EXPENSE EXAMPLE
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 and then 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 fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategy
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	Under normal market conditions, the fund intends to provide total return by investing at least 80% of its net assets at the time of purchase (plus any amounts borrowed for investment purposes) in a diversified portfolio of fixed income securities, including bonds, debt securities, bank loans and other similar U.S. dollar-denominated instruments issued by various U.S. public- or private-sector entities, or by non-U.S. corporations or U.S. affiliates of non-U.S. corporations, including those in emerging markets. The fund may invest a significant portion or all of its assets in securitized bond investments also referred to as "structured product securities" or "structured products." Securitized bond investments include interests in pools of secured loans backed by commercial real estate, residential real estate, commercial or consumer loans, and securitizations such as collateralized debt obligations, collateralized loan obligations ("CLOs"), agency and non-agency mortgage-backed securities ("MBS") (including commercial mortgage-backed securities ("CMBS"), residential mortgage-backed securities ("RMBS"), and collateralized mortgage obligations ("CMOs")), asset-backed securities ("ABS"), and other similar securities and related instruments at the discretion of Diamond Hill Capital Management, Inc. (the “Adviser”). The fund may invest up to 35% of its net assets in below-investment grade securities, including those referred to as "junk bonds" (or the unrated equivalent) at the time of purchase. Under normal circumstances, the fund will maintain an average portfolio duration of plus or minus 20% of the duration of the Bloomberg US Aggregate Bond Index. The Bloomberg US Aggregate Bond Index is a broad-based index that represents the investment grade, US dollar-denominated fixed-rate taxable bond market. Duration of the Bloomberg US Aggregate Bond Index was 6.08 years as of its last reconstitution date of January 31, 2025. Duration is an approximate measure of a bond’s price sensitivity to changes in interest rates. For instance, a duration of “three” means that a security’s or portfolio’s price would be expected to decrease by approximately 3% with a 1% increase in interest rates (assuming a parallel shift in the yield curve). When selecting securities for investment, the Adviser employs a bottom-up, research-based approach in seeking to identify opportunities. In buying and selling securities for the fund, the Adviser performs a risk/reward analysis that includes an evaluation of credit risk, interest rate risk, prepayment risk, and the legal and technical structure of the security. The Adviser will attempt to take advantage of inefficiencies that it believes exist in the fixed-income markets, such as the diversity of participants working with different objectives and repeated temporary supply-demand imbalances. The Adviser seeks to invest in securities that the Adviser expects to offer attractive prospects for current income and/or capital appreciation in relation to the risk borne
Strategy Portfolio Concentration [Text]	rr_StrategyPortfolioConcentration	Under normal market conditions, the fund intends to provide total return by investing at least 80% of its net assets at the time of purchase (plus any amounts borrowed for investment purposes) in a diversified portfolio of fixed income securities, including bonds, debt securities, bank loans and other similar U.S. dollar-denominated instruments issued by various U.S. public- or private-sector entities, or by non-U.S. corporations or U.S. affiliates of non-U.S. corporations, including those in emerging markets. The fund may invest a significant portion or all of its assets in securitized bond investments also referred to as "structured product securities" or "structured products." Securitized bond investments include interests in pools of secured loans backed by commercial real estate, residential real estate, commercial or consumer loans, and securitizations such as collateralized debt obligations, collateralized loan obligations ("CLOs"), agency and non-agency mortgage-backed securities ("MBS") (including commercial mortgage-backed securities ("CMBS"), residential mortgage-backed securities ("RMBS"), and collateralized mortgage obligations ("CMOs")), asset-backed securities ("ABS"), and other similar securities and related instruments at the discretion of Diamond Hill Capital Management, Inc. (the “Adviser”). The fund may invest up to 35% of its net assets in below-investment grade securities, including those referred to as "junk bonds" (or the unrated equivalent) at the time of purchase.
Risk [Heading]	rr_RiskHeading	Main Risks
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Performance
Performance Table Closing [Text Block]	rr_PerformanceTableClosingTextBlock	The fund's broad-based securities market index is the Bloomberg US Aggregate Bond Index. The Bloomberg US Aggregate Bond Index measures the performance of investment grade, fixed-rate taxable bond market and includes government and corporate bonds, agency mortgage-backed, asset-backed and commercial mortgage-backed securities (agency and non-agency). The Bloomberg US Aggregate Bond Index also represents the index utilized by the Adviser for measuring performance. The index is unmanaged, includes net reinvested dividends, does not reflect fees or expenses (which would lower the return), and is not available for direct investment.
Performance One Year or Less [Text]	rr_PerformanceOneYearOrLess	No performance information is presented for the fund at this time, as the fund has been in operation for less than a full calendar year
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	1-888-226-5595
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.diamond-hill.com
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	No performance information is presented for the fund at this time, as the fund has been in operation for less than a full calendar year. In the future, performance information will be presented in this section of the prospectus. This information will give some indication of the risks of investing in the fund by comparing the fund's investment returns with a broad measure of market performance. Updated performance information is available by visiting www.diamond-hill.com or by calling 1-888-226-5595.
Diamond Hill Core Plus Bond Fund | Risk Lose Money [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	You may lose money by investing in the fund.
Diamond Hill Core Plus Bond Fund | Risk Not Insured Depository Institution [Member]
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	An investment in the fund is not a deposit or obligation of any bank, is not endorsed or guaranteed by any bank, and is not insured by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency.
Diamond Hill Core Plus Bond Fund | Adjustable Rate Mortgage Loans ("ARMs") Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Adjustable Rate Mortgage Loans ("ARMs") Risk As with fixed rate mortgages, there can be no certainty as to the rate of prepayments on the ARMs in either stable or changing interest rate environments. In addition, there can be no certainty as to whether increases in the principal balances of the ARMs due to the addition of deferred interest may result in a default rate higher than that on ARMs that do not provide for negative amortization. Other factors affecting prepayment of ARMs include changes in mortgagors’ housing needs, job transfers, unemployment, mortgagors’ net equity in the mortgage properties and servicing decisions.
Diamond Hill Core Plus Bond Fund | Asset-Backed, Mortgage-Related And Mortgage-Backed Securities Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Asset-Backed, Mortgage-Related and Mortgage-Backed Securities Risk The fund may invest in asset-backed, mortgage-related and mortgage-backed securities, including so-called “sub-prime” mortgages that are subject to certain other risks including prepayment and call risks. When mortgages and other obligations are prepaid and when securities are called, the fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decrease in the amount of dividends and yield. In periods of rising interest rates, the fund may be subject to extension risk, and may receive principal later than expected. As a result, in periods of rising interest rates, the fund may exhibit additional volatility. During periods of difficult or frozen credit markets, changes in interest rates, or deteriorating economic conditions, such securities may decline in value, face valuation difficulties, become more volatile and/or become illiquid. CMOs and stripped mortgage-backed securities, including those structured as interest only (“IOs”) and principal only (“POs”), are more volatile and may be more sensitive to the rate of prepayments than other mortgage-related securities. CMOs are issued in multiple classes, and each class may have its own interest rate and/or final payment date. A class with an earlier final payment date may have certain preferences in receiving principal payments or earning interest. As a result, the value of some classes in which the fund invests may be more volatile and may be subject to higher risk of non-payment. The risk of default, as described under “Credit Risk”, for “sub-prime” mortgages is generally higher than other types of mortgage-backed securities. The structure of some of these securities may be complex and there may be less available information than other types of debt securities. The values of IO and PO mortgage-backed securities are more volatile than other types of mortgage-related securities. They are very sensitive not only to changes in interest rates, but also to the rate of prepayments. A rapid or unexpected increase in prepayments can significantly depress the price of interest-only securities, while a rapid or unexpected decrease could have the same effect on principal-only securities. In addition, because there may be a drop in trading volume, an inability to find a ready buyer, or the imposition of legal restrictions on the resale of securities, these instruments may be illiquid. The fund will be exposed to additional risk to the extent that it uses inverse floaters and inverse IOs, which are debt securities with interest rates that reset in the opposite direction from the market rate to which the security is indexed. These securities are more volatile and more sensitive to interest rate changes than other types of debt securities. In response to changes in market interest rates or other market conditions, the value of an inverse floater may increase or decrease at a multiple of the increase or decrease in the value of the underlying securities. If interest rates move in a manner not anticipated by the Adviser, the fund could lose all or substantially all of its investment in inverse IOs.
Diamond Hill Core Plus Bond Fund | Collateralized Loan Obligations ("CLOs") Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Collateralized Loan Obligations ("CLOs") Risk CLOs are subject to credit, interest rate, valuation, and prepayment and call, and extension risks. These securities also are subject to risk of default on the underlying asset, particularly during periods of economic downturn. The market value of CLOs may be affected by, changes in the market value of the underlying assets held by the CLO, changes in the distributions on the underlying assets, defaults and recoveries on the underlying assets, capital gains and losses on the underlying assets, prepayments on underlying assets and the availability, prices and interest rate of underlying assets.
Diamond Hill Core Plus Bond Fund | Credit Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Credit Risk  There is a risk that issuers and counterparties will not make payments on securities and repurchase agreements held by the fund. Such default could result in losses to the fund. In addition, the credit quality of securities held by the fund may be lowered if an issuer’s financial condition changes. Lower credit quality may lead to greater volatility in the price of a security and in shares of the fund. Lower credit quality also may affect liquidity and make it difficult for the fund to sell the security.
Diamond Hill Core Plus Bond Fund | Current Market Environment Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Current Market Environment Risk Various sectors of the financial markets may experience an extended period of adverse conditions and.certain types of securitized bond investments may come under stress due to economic factors and trends, such as higher than expected interest rates, property vacancies and consumer stress.
Diamond Hill Core Plus Bond Fund | Extension Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Extension Risk If interest rates rise, repayments of principal on certain debt securities, including, but not limited to, floating rate loans and mortgage-related securities, may occur at a slower rate than expected and the expected maturity of those securities could lengthen as a result. This may drive the prices of these securities down because their interest rates are lower than the current interest rate and they remain outstanding longer. In periods of rising rates, the fund may exhibit additional volatility.
Diamond Hill Core Plus Bond Fund | Government Securities Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Government Securities Risk The fund may invest in securities issued or guaranteed by the U.S. government or its agencies and instrumentalities. These securities may be backed by the credit of the government as a whole or only by the issuing agency. U.S. Treasury bonds, notes, and bills and some agency securities, such as those issued by the Federal Housing Administration and Ginnie Mae, are backed by the full faith and credit of the U.S. government as to payment of principal and interest and are the highest quality government securities. Other securities issued by U.S. government agencies or instrumentalities, such as securities issued by the Federal Home Loan Banks and Freddie Mac, are supported only by the credit of the agency that issued them, and not by the U.S. government. Securities issued by the Federal Farm Credit System, the Federal Land Banks, and Fannie Mae are supported by the agency’s right to borrow money from the U.S. Treasury under certain circumstances, but are not backed by the full faith and credit of the U.S. government. No assurance can be given that the U.S. government would provide financial support to its agencies and instrumentalities if not required to do so by law.
Diamond Hill Core Plus Bond Fund | High Yield Securities Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	High Yield Securities Risk  The fund will purchase fixed income securities rated below the investment grade category. Securities in this rating category are speculative. Changes in economic conditions or other circumstances may have a greater effect on the ability of issuers of these securities to make principal and interest payments than they do on issuers of higher grade securities.
Diamond Hill Core Plus Bond Fund | Interest Rate Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Interest Rate Risk  The fund invests in fixed income securities. These securities will increase or decrease in value based on changes in interest rates. If rates increase, the value of the fund’s fixed income securities generally declines. On the other hand, if rates fall, the value of the fixed income securities generally increases. Your investment will decline in value if the value of the fund’s investments decreases.
Diamond Hill Core Plus Bond Fund | Illiquid Securities Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Illiquid Securities Risk  The fund may invest up to 15% of the value of its net assets in securities that are illiquid. An illiquid investment is any investment that cannot be disposed of in current market conditions within seven days in the normal course of business at approximately the amount at which it is valued by the fund and without significantly changing the value of the investment. The price the fund pays for illiquid securities or receives upon resale may be lower than the price paid or received for similar securities with a more liquid market. In addition, there may be no market or a limited market in which to sell illiquid securities.
Diamond Hill Core Plus Bond Fund | Inflation Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Inflation Risk  Because inflation reduces the purchasing power of income produced by existing fixed income securities, the prices at which fixed income securities trade will be reduced to compensate for the fact that the income they produce is worth less. This potential decrease in market value would be the measure of the inflation risk incurred by the fund.
Diamond Hill Core Plus Bond Fund | Liquidity Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Liquidity Risk The fund may not be able to purchase or sell a security in a timely manner or at desired prices or achieve its desired weighting in a security. Liquidity risk may result from the lack of an active market or a reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified during times of market stress. The fund may not be able to meet the requests to redeem fund shares without significant dilution of remaining investors' interest in the fund.
Diamond Hill Core Plus Bond Fund | Loan Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Loan Risk Investments in loans expose the fund to additional risks beyond those normally associated with more traditional debt instruments. The fund’s ability to receive payments in connection with the loan depends primarily on the financial condition of the borrower and whether or not a loan is secured by collateral, although there is no assurance that the collateral securing a loan will be sufficient to satisfy the loan obligation. The fund may also invest in loan assignments and participations ("Loans") and commitments to purchase loan assignments (Unfunded Commitments) including below investment grade Loans and Unfunded Commitments. Loans will typically consist of senior floating rate loans (Senior Loans), but may also include secured and unsecured loans, second lien loans or more junior loans (Junior Loans) and bridge loans. Loans may be issued by obligors in the U.S. or in foreign or emerging markets. When the fund acquires a loan participation, the fund typically enters into a contractual relationship with the lender or third party selling such participations, but not the borrower. As a result, the fund assumes the credit risk not only of the borrower, but also of the seller of the loan participation and any other parties interpositioned between the fund and the borrower. The fund may not benefit directly from the collateral supporting the loan in which it has purchased the loan participations or assignments. In recent years, there has been a broad trend of weaker or less restrictive covenant protections in the loan market, which may allow borrowers to exercise more flexibility with respect to certain activities than borrowers who are subject to stronger or more protective covenants, which might negatively impact the loans held by the fund. Loans are also vulnerable to market sentiment such that economic conditions or other events may reduce the demand for loans and cause their value to decline rapidly and unpredictably. No active trading market may exist for some of the loans and certain loans may be subject to restrictions on resale. The inability to dispose of loans in a timely fashion could result in losses to the fund. In addition, bank loans often have contractual restrictions on resale, which can delay the sale and adversely impact the sale price. Transactions involving bank loans may have significantly longer settlement periods than more traditional investments (settlement can take longer than 7 days) and often involve borrowers whose financial condition is troubled or highly leveraged, which increases the risk that the fund may not receive its proceeds in a timely manner or that the fund may incur losses in order to pay redemption proceeds to its shareholders. In addition, loans are not registered under the federal securities laws like stocks and bonds, so investors in loans may have less protection against improper practices than investors in registered securities.
Diamond Hill Core Plus Bond Fund | Management Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Management Risk  The Adviser’s judgments about the attractiveness, value and potential appreciation of a particular asset class or individual security in which the fund invests may prove to be incorrect and there is no guarantee that individual investments will perform as anticipated.
Diamond Hill Core Plus Bond Fund | Market Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Market Risk The value of the fund's investments may decrease, sometimes rapidly or unexpectedly, due to factors affecting an issuer held by the fund, particular industries or overall securities markets. When the value of the fund’s investments goes down, your investment in the fund decreases in value. A variety of factors including interest rate levels, recessions, inflation, U.S. economic growth, war or acts of terrorism, natural disasters, political events, supply chain disruptions, staff shortages and widespread public health issues affect the securities markets. These events may cause volatility, severe market dislocations and liquidity constraints in many markets, including markets for the securities the fund holds, and may adversely affect the fund's investments and operations. In addition, governmental responses to these events may negatively impact the capabilities of the fund's service providers, disrupt the fund's operations, result in substantial market volatility and adversely impact the prices and liquidity of the fund's investments.
Diamond Hill Core Plus Bond Fund | Non-U.S. And Emerging Markets Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Non-U.S. and Emerging Markets Risk The fund may invest in non-U.S. securities and U.S. securities of companies domiciled in non-U.S. countries that may experience more rapid and extreme changes in value than the fund that invests exclusively in securities of U.S. companies. These companies may be subject to additional risks, including political and economic risks, civil conflicts and war, greater volatility, expropriation and nationalization risks, higher transaction costs, delayed settlement, possible non-U.S. controls on investments, and less stringent investor protection and disclosure standards of non-U.S. markets. The departure of one or more other countries from the European Union may have significant political and financial consequences for global markets. These risks are magnified in emerging markets as events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. The market for the securities of issuers in emerging markets is typically small and low, and nonexistent trading volumes in those securities may result in a lack of liquidity and price volatility.
Diamond Hill Core Plus Bond Fund | Prepayment And Call Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Prepayment and Call Risk The issuer of certain securities may repay principal in advance, especially when yields fall. Changes in the rate at which prepayments occur can affect the return on investment of these securities. When debt obligations are prepaid or when securities are called, the fund may have to reinvest in securities with a lower yield. The fund also may fail to recover additional amounts (i.e., premiums) paid for securities with higher coupons, resulting in an unexpected capital loss.
Diamond Hill Core Plus Bond Fund | Real Estate Risk Member
Risk/Return:	rr_RiskReturnAbstract
Risk [Text Block]	rr_RiskTextBlock	Real Estate Risk Real estate related investments may decline in value as a result of factors affecting the real estate industry, such as the supply of real property in certain markets, changes in zoning laws, delays in completion of construction, changes in real estate values, changes in property taxes, levels of occupancy, and local and regional market conditions.
Diamond Hill Core Plus Bond Fund | Investor
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHNAX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.40%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.21%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.86%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 88
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	$ 274
Diamond Hill Core Plus Bond Fund | Class I
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHNIX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.40%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.17%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.57%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 58
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	$ 183
Diamond Hill Core Plus Bond Fund | Class Y
Risk/Return:	rr_RiskReturnAbstract
Trading Symbol	dei_TradingSymbol	DHNYX
Shareholder Fee, Other	rr_ShareholderFeeOther	none
Management Fees (as a percentage of Assets)	rr_ManagementFeesOverAssets	0.40%
Distribution and Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Component3 Other Expenses	rr_Component3OtherExpensesOverAssets	0.05%
Expenses (as a percentage of Assets)	rr_ExpensesOverAssets	0.45%
Expense Example, with Redemption, 1 Year	rr_ExpenseExampleYear01	$ 46
Expense Example, with Redemption, 3 Years	rr_ExpenseExampleYear03	$ 144

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- Definition Total Annual Fund Operating Expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 11 + Details Name: rr_AcquiredFundFeesAndExpensesOverAssets Namespace Prefix: rr_ Data Type: rr:NonNegativePure4Type Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_AnnualReturn2015 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_AnnualReturn2016 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_AnnualReturn2017 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_AnnualReturn2018 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_AnnualReturn2019 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_AnnualReturn2020 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_AnnualReturn2021 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_AnnualReturn2022 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_AnnualReturn2023 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_AnnualReturn2024 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition Return Before Taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph instructions -Clause 4 + Details Name: rr_AverageAnnualReturnInceptionDate Namespace Prefix: rr_ Data Type: xbrli:dateItemType Balance Type: na Period Type: duration

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- Definition This item represents Average Annual Total Returns. If a Multiple Class Fund offers a Class in the prospectus that converts into another Class after a stated period, compute average annual total returns in the table by using the returns of the other Class for the period after conversion. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 + Details Name: rr_AverageAnnualReturnLabel Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Return Before Taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 + Details Name: rr_AverageAnnualReturnSinceInception Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition Return Before Taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 + Details Name: rr_AverageAnnualReturnYear01 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition Return Before Taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 + Details Name: rr_AverageAnnualReturnYear05 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition Return Before Taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 + Details Name: rr_AverageAnnualReturnYear10 Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition Risk/Return Bar Chart and Table. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 + Details Name: rr_BarChartAndPerformanceTableHeading Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_BarChartClosingTextBlock Namespace Prefix: rr_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Risk/Return Bar Chart and Table. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 + Details Name: rr_BarChartHeading Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_BarChartHighestQuarterlyReturn Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_BarChartHighestQuarterlyReturnDate Namespace Prefix: rr_ Data Type: xbrli:dateItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_BarChartLowestQuarterlyReturn Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_BarChartLowestQuarterlyReturnDate Namespace Prefix: rr_ Data Type: xbrli:dateItemType Balance Type: na Period Type: duration

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- Definition The Fund may subdivide this caption into no more than three subcaptions that identify the largest expense or expenses comprising "Other Expenses," but must include a total of all "Other Expenses." Alternatively, the Fund may include the components of "Other Expenses" in a parenthetical to the caption. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph c -Clause iii + Details Name: rr_Component1OtherExpensesOverAssets Namespace Prefix: rr_ Data Type: rr:NonNegativePure4Type Balance Type: na Period Type: duration

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- Definition The Fund may subdivide this caption into no more than three subcaptions that identify the largest expense or expenses comprising "Other Expenses," but must include a total of all "Other Expenses." Alternatively, the Fund may include the components of "Other Expenses" in a parenthetical to the caption. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 10 + Details Name: rr_Component2OtherExpensesOverAssets Namespace Prefix: rr_ Data Type: rr:NonNegativePure4Type Balance Type: na Period Type: duration

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- Definition The Fund may subdivide this caption into no more than three subcaptions that identify the largest expense or expenses comprising "Other Expenses," but must include a total of all "Other Expenses." Alternatively, the Fund may include the components of "Other Expenses" in a parenthetical to the caption. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph c -Clause iii + Details Name: rr_Component3OtherExpensesOverAssets Namespace Prefix: rr_ Data Type: rr:NonNegativePure4Type Balance Type: na Period Type: duration

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- Definition Distribution [and/or Service] (12b-1) Fees" include all distribution or other expenses incurred during the most recent fiscal year under a plan adopted pursuant to rule 12b-1 [17 CFR 270.12b-1]. Under an appropriate caption or a subcaption of "Other Expenses," disclose the amount of any distribution or similar expenses deducted from the Fund's assets other than pursuant to a rule 12b-1 plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 9 + Details Name: rr_DistributionAndService12b1FeesOverAssets Namespace Prefix: rr_ Data Type: rr:NonNegativePure4Type Balance Type: na Period Type: duration

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- Definition Heading for Expense Example. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection instructions -Paragraph 4 + Details Name: rr_ExpenseExampleHeading Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition The Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 1 + Details Name: rr_ExpenseExampleNarrativeTextBlock Namespace Prefix: rr_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection instructions -Paragraph 4 + Details Name: rr_ExpenseExampleYear01 Namespace Prefix: rr_ Data Type: rr:NonNegativeMonetaryType Balance Type: na Period Type: duration

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- Definition The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 2 + Details Name: rr_ExpenseExampleYear03 Namespace Prefix: rr_ Data Type: rr:NonNegativeMonetaryType Balance Type: na Period Type: duration

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- Definition The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 2 + Details Name: rr_ExpenseExampleYear05 Namespace Prefix: rr_ Data Type: rr:NonNegativeMonetaryType Balance Type: na Period Type: duration

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- Definition The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection example -Paragraph 1 -Subparagraph 2 + Details Name: rr_ExpenseExampleYear10 Namespace Prefix: rr_ Data Type: rr:NonNegativeMonetaryType Balance Type: na Period Type: duration

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- Definition Risk/Return Summary Fee Table Includes the following information, in plain English under rule 421(d) under the Securities Act, after Item 2 Fees and expenses of the Fund This table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Shareholder Fees (fees paid directly from your investment) Example 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 and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be You would pay the following expenses if you did not redeem your shares The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher. Portfolio Turnover 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. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was __% of the average value of its whole portfolio. Instructions. A.3.instructions.6 New Funds. For purposes of this Item, a "New Fund" is a Fund that does not include in Form N-1A financial statements reporting operating results or that includes financial statements for the Fund's initial fiscal year reporting operating results for a period of 6 months or less. The following Instructions apply to New Funds. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection instructions -Paragraph 1 -Subparagraph d + Details Name: rr_ExpenseHeading Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition 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 tables and examples below. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[ ] in [name of fund family] funds. More information about these and other discounts is available from your financial intermediary and in [identify section heading and page number] of the Fund's prospectus and [identify section heading and page number] of the Fund's statement of additional information + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection instructions -Paragraph 1 -Subparagraph b + Details Name: rr_ExpenseNarrativeTextBlock Namespace Prefix: rr_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Total Annual Fund Operating Expenses. If the Fund is a Feeder Fund, reflect the aggregate expenses of the Feeder Fund and the Master Fund in a single fee table using the captions provided. In a footnote to the fee table, state that the table and Example reflect the expenses of both the Feeder and Master Funds. If the prospectus offers more than one Class of a Multiple Class Fund or more than one Feeder Fund that invests in the same Master Fund, provide a separate response for each Class or Feeder Fund. Base the percentages of "Annual Fund Operating Expenses" on amounts incurred during the Fund's most recent fiscal year, but include in expenses amounts that would have been incurred absent expense reimbursement or fee waiver arrangements. If the Fund has changed its fiscal year and, as a result, the most recent fiscal year is less than three months, use the fiscal year prior to the most recent fiscal year as the basis for determining "Annual Fund Operating Expenses." + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph d + Details Name: rr_ExpensesOverAssets Namespace Prefix: rr_ Data Type: rr:NonNegativePure4Type Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_HighestQuarterlyReturnLabel Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph ii + Details Name: rr_LowestQuarterlyReturnLabel Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Management Fees include investment advisory fees (including any fees based on the Fund's performance), any other management fees payable to the investment adviser or its affiliates, and administrative fees payable to the investment adviser or its affiliates that are not included as "Other Expenses." + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph a + Details Name: rr_ManagementFeesOverAssets Namespace Prefix: rr_ Data Type: rr:NonNegativePure4Type Balance Type: na Period Type: duration

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- Definition Investment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 2 -Subsection a + Details Name: rr_ObjectiveHeading Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Investment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 2 -Subsection a + Details Name: rr_ObjectivePrimaryTextBlock Namespace Prefix: rr_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Annual Fund Operating Expenses (ongoing expenses that you pay each year as a percentage of the value of your investment) + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 7 + Details Name: rr_OperatingExpensesCaption Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition "Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection instructions -Paragraph 3 -Subparagraph c -Clause i + Details Name: rr_OtherExpensesOverAssets Namespace Prefix: rr_ Data Type: rr:NonNegativePure4Type Balance Type: na Period Type: duration

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- Definition If applicable, include a statement explaining that updated performance information is available and providing a Web site address and/or toll-free (or collect) telephone number where the updated information may be obtained. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph i + Details Name: rr_PerformanceAvailabilityPhone Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition If applicable, include a statement explaining that updated performance information is available and providing a Website address and/or toll-free (or collect) telephone number where the updated information may be obtained. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph i + Details Name: rr_PerformanceAvailabilityWebSiteAddress Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Include the bar chart and table required by paragraphs (b)(2)(ii) and (iii) of this section. Provide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph i + Details Name: rr_PerformanceInformationIllustratesVariabilityOfReturns Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Risk/Return Bar Chart and Table. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 + Details Name: rr_PerformanceNarrativeTextBlock Namespace Prefix: rr_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition For a Fund that provides annual total returns for only one calendar year or for a Fund that does not include the bar chart because it does not have annual returns for a full calendar year, modify, as appropriate, the narrative explanation required by stating that the information gives some indication of the risks of an investment in the Fund by comparing the Fund's performance with a broad measure of market performance). Provide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph i Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph instructions -Clause 1 -Exhibit b + Details Name: rr_PerformanceOneYearOrLess Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Include the bar chart and table required by paragraphs (b)(2)(ii) and (iii) of this section. Provide a brief explanation of how the information illustrates the variability of the Fund's returns (e.g., by stating that the information provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for 1, 5, and 10 years compare with those of a broad measure of market performance). Provide a statement to the effect that the Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph i + Details Name: rr_PerformancePastDoesNotIndicateFuture Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also should show the returns of an appropriate broad-based securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____) + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii + Details Name: rr_PerformanceTableClosingTextBlock Namespace Prefix: rr_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also should show the returns of an appropriate broad-based securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____) + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii + Details Name: rr_PerformanceTableDoesReflectSalesLoads Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition This item represents Average Annual Total Returns. If a Multiple Class Fund offers a Class in the prospectus that converts into another Class after a stated period, compute average annual total returns in the table by using the returns of the other Class for the period after conversion. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit c + Details Name: rr_PerformanceTableHeading Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition If the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also should show the returns of an appropriate broad-based securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____). For a Fund that provides annual total returns for only one calendar year or for a Fund that does not include the bar chart because it does not have annual returns for a full calendar year, modify, as appropriate, the narrative explanation required by paragraph (c)(2)(i) (e.g., by stating that the information gives some indication of the risks of an investment in the Fund by comparing the Fund's performance with a broad measure of market performance). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iv + Details Name: rr_PerformanceTableNarrativeTextBlock Namespace Prefix: rr_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Provide a brief explanation that the actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iv -Clause B + Details Name: rr_PerformanceTableNotRelevantToTaxDeferred Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Provide a brief explanation that if the Fund is a Multiple Class Fund that offers more than one Class in the prospectus, after-tax returns are shown for only one Class and after-tax returns for other Classes will vary. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iv -Clause C + Details Name: rr_PerformanceTableOneClassOfAfterTaxShown Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Provide a brief explanation that 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 2 -Subparagraph iii + Details Name: rr_PerformanceTableUsesHighestFederalRate Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Disclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection instructions -Paragraph 5 + Details Name: rr_PortfolioTurnoverHeading Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition This element represents the rate of portfolio turnover presented as a percentage (SEC Form N-1A 2006-09-14 A.3.example.3 Portfolio Turnover A.3.instructions.5 Portfolio Turnover). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection example -Paragraph 3 + Details Name: rr_PortfolioTurnoverRate Namespace Prefix: rr_ Data Type: xbrli:pureItemType Balance Type: na Period Type: duration

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- Definition Disclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection example -Paragraph 3 + Details Name: rr_PortfolioTurnoverTextBlock Namespace Prefix: rr_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Narrative Risk Disclosure. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 1 + Details Name: rr_RiskHeading Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- References No definition available. + Details Name: rr_RiskReturnAbstract Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Risk/Return Summary Investment Objectives/Goals Include the following information, in plain English under rule 421(d) under the Securities Act, in the order and subject matter indicated + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 2 + Details Name: rr_RiskReturnHeading Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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- Definition Text block containing a risk heading and narrative for a single risk. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 4 -Subsection b -Paragraph 1 -Subparagraph i -Clause instruction + Details Name: rr_RiskTextBlock Namespace Prefix: rr_ Data Type: dtr-types:textBlockItemType Balance Type: na Period Type: duration

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- Definition Other Expenses + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection table -Paragraph 1 -Subparagraph 10 + Details Name: rr_ShareholderFeeOther Namespace Prefix: rr_ Data Type: rr:NonNegativeMonetaryType Balance Type: na Period Type: duration

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- Definition Shareholder Fees (fees paid directly from your investment). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Form N-1A -Section 3 -Subsection table -Paragraph 1 + Details Name: rr_ShareholderFeesCaption Namespace Prefix: rr_ Data Type: xbrli:stringItemType Balance Type: na Period Type: duration

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