v3.26.1
Label Element Value
Clipper Fund | Clipper Fund  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk/Return [Heading] oef_RiskReturnHeading Clipper Fund
Objective [Heading] oef_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] oef_ObjectivePrimaryTextBlock
The Fund seeks long-term capital growth and capital preservation.
Expense Heading [Optional Text] oef_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] oef_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the 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. 
Expense Example [Heading] oef_ExpenseExampleHeading Example.
Expense Example Narrative [Text Block] oef_ExpenseExampleNarrativeTextBlock
This Example is intended to help you compare the cost of investing in the 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: 
Portfolio Turnover [Heading] oef_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] oef_PortfolioTurnoverTextBlock
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual 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 17% of the average value of its portfolio.
Portfolio Turnover, Rate oef_PortfolioTurnoverRate 17.00%
Strategy [Heading] oef_StrategyHeading Principal Investment Strategies of the Fund
Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock
Davis Selected Advisers, L.P. (“Davis Advisors” or the “Adviser”), the Fund’s investment adviser, uses the Davis Investment Discipline to invest the Fund’s portfolio principally in common stocks (including indirect holdings of common stock through Depositary Receipts (as defined below)) issued by large companies with market capitalizations of at least $10 billion. The Fund is non-diversified and, therefore, is allowed to focus its investments in fewer companies than a fund that is required to diversify its portfolio. The Fund’s portfolio generally contains between 15 and 35 companies, although the precise number of its investments will vary over time. Historically, the Fund has invested a significant portion of its assets in financial services companies and in foreign companies, and may also invest in mid- and small-capitalization companies.
Davis Investment Discipline. Davis Advisors manages equity funds using the Davis Investment Discipline. Davis Advisors conducts extensive research to try to identify businesses that possess characteristics that Davis Advisors believes foster the creation of long-term value, such as proven management, a durable franchise and business model, and sustainable competitive advantages. Davis Advisors aims to invest in such businesses when they are trading at discounts to their intrinsic worth. Davis Advisors emphasizes individual stock selection and believes that the ability to evaluate management is critical. Davis Advisors routinely visits managers at their places of business in order to gain insight into the relative value of different businesses. Such research, however rigorous, involves predictions and forecasts that are inherently uncertain. After determining which companies Davis Advisors believes the Fund should own, Davis Advisors then turns its analysis to determining the intrinsic value of those companies’ equity securities. Davis Advisors seeks companies whose equity securities can be purchased at a discount from Davis Advisors’ estimate of the company’s intrinsic value based upon fundamental analysis of cash flows, assets and liabilities, and other criteria that Davis Advisors deems to be material on a company-by-company basis. Davis Advisors’ goal is to invest in companies for the long term (ideally, five years or longer, although this goal may not be met). Davis Advisors considers selling a company’s equity securities if the securities’ market price exceeds Davis Advisors’ estimates of intrinsic value, if the ratio of the risks and rewards of continuing to own the company’s equity securities is no longer attractive, to raise cash to purchase a more attractive investment opportunity, to satisfy net redemptions, or for other purposes.
Bar Chart and Performance Table [Heading] oef_BarChartAndPerformanceTableHeading Performance Results
Performance Narrative [Text Block] oef_PerformanceNarrativeTextBlock
The bar chart below provides some indication of the risks of investing in the Fund by showing how the Fund’s investment results have varied from year to year. The following table shows how the Fund’s average annual total returns, for the periods indicated, compare with the S&P 500 Index, a broad-based securities market index. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated information on the Fund’s results can be obtained by visiting www.clipperfund.com or by calling 1-800-432-2504.
After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, 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.
Performance Information Illustrates Variability of Returns [Text] oef_PerformanceInformationIllustratesVariabilityOfReturns The bar chart below provides some indication of the risks of investing in the Fund by showing how the Fund’s investment results have varied from year to year.
Performance Availability Phone [Text] oef_PerformanceAvailabilityPhone 1-800-432-2504
Performance Availability Website Address [Text] oef_PerformanceAvailabilityWebSiteAddress www.clipperfund.com
Performance Past Does Not Indicate Future [Text] oef_PerformancePastDoesNotIndicateFuture The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] oef_BarChartHeading Calendar Year Total Returns
Bar Chart Closing [Text Block] oef_BarChartClosingTextBlock
 
Returns
Period Ending
Highest
Quarter
17.57%
June 30, 2020
Lowest
Quarter
-25.13%
March 31, 2020
Year-to-Date
-1.64%
March 31, 2026
Year to Date Return, Label [Optional Text] oef_YearToDateReturnLabel Year-to-Date
Bar Chart, Year to Date Return, Date oef_BarChartYearToDateReturnDate Mar. 31, 2026
Bar Chart, Year to Date Return oef_BarChartYearToDateReturn (1.64%)
Highest Quarterly Return, Label [Optional Text] oef_HighestQuarterlyReturnLabel Highest
Highest Quarterly Return, Date oef_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return oef_BarChartHighestQuarterlyReturn 17.57%
Lowest Quarterly Return, Label [Optional Text] oef_LowestQuarterlyReturnLabel Lowest
Lowest Quarterly Return, Date oef_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return oef_BarChartLowestQuarterlyReturn (25.13%)
Performance Table Uses Highest Federal Rate oef_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred oef_PerformanceTableNotRelevantToTaxDeferred 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.
Average Annual Return, Caption [Optional Text] oef_AverageAnnualReturnCaption Average Annual Total Returns (For the periods ended December 31, 2025)
Clipper Fund | Clipper Fund | Risk Nondiversified Status [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Financial Services Risk. Risks of investing in the financial services sector include: (1) systemic risk: factors outside the control of a particular financial institution may adversely affect the ability of the financial institution to operate normally or may impair its financial condition; (2) regulatory actions: financial services companies may suffer setbacks if regulators change the rules under which they operate; (3) changes in interest rates: unstable and/or rising interest rates may have a disproportionate effect on companies in the financial services sector; (4) non-diversified loan portfolios: financial services companies may have concentrated portfolios that make them vulnerable to economic conditions that affect an industry; (5) credit: financial services companies may have exposure to investments or agreements that may lead to losses; and (6) competition: the financial services sector has become increasingly competitive.
Clipper Fund | Clipper Fund | Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Clipper Fund | Clipper Fund | Risk Lose Money [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock You may lose money by investing in the Fund.
Clipper Fund | Clipper Fund | Stock Market Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Stock Market Risk. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices, including the possibility of sharp declines.
Clipper Fund | Clipper Fund | Common Stock Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Common Stock Risk. Common stock represents an ownership position in a company. An adverse event may have a negative impact on a company and could result in a decline in the price of its common stock. Common stock is generally subordinate to an issuer’s other securities, including preferred, convertible, and debt securities.
Clipper Fund | Clipper Fund | Financial Services Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Financial Services Risk. Risks of investing in the financial services sector include: (1) systemic risk: factors outside the control of a particular financial institution may adversely affect the ability of the financial institution to operate normally or may impair its financial condition; (2) regulatory actions: financial services companies may suffer setbacks if regulators change the rules under which they operate; (3) changes in interest rates: unstable and/or rising interest rates may have a disproportionate effect on companies in the financial services sector; (4) non-diversified loan portfolios: financial services companies may have concentrated portfolios that make them vulnerable to economic conditions that affect an industry; (5) credit: financial services companies may have exposure to investments or agreements that may lead to losses; and (6) competition: the financial services sector has become increasingly competitive.
Clipper Fund | Clipper Fund | Focused Portfolio Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Focused Portfolio Risk. Funds that invest in a limited number of companies may have more risk because changes in the value of a single security may have a more significant effect, either negative or positive, on the value of the Fund’s total portfolio.
Clipper Fund | Clipper Fund | Foreign Country Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Foreign Country Risk. Securities of foreign companies (including Depositary Receipts) may be subject to greater risk, as foreign economies may not be as strong or diversified, foreign political systems may not be as stable and foreign financial reporting standards may not be as rigorous as they are in the United States. There may also be less information publicly available regarding the non-U.S. issuers and their securities. These securities may be less liquid (and, in some cases, may be illiquid) and could be harder to value than more liquid securities.
Clipper Fund | Clipper Fund | Headline Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Headline Risk. The Fund may invest in a company when the company becomes the center of controversy after receiving adverse media attention concerning its operations, long-term prospects, management, or for other reasons. While Davis Advisors researches companies subject to such contingencies, it cannot be correct every time, and the company’s stock may never recover or may become worthless.
Clipper Fund | Clipper Fund | Large-Capitalization Companies Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Large-Capitalization Companies Risk. Companies with $10 billion or more in market capitalization are considered by the Adviser to be large-capitalization companies. Large-capitalization companies generally experience slower rates of growth in earnings per share than do mid- and small-capitalization companies.
Clipper Fund | Clipper Fund | Manager Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Manager Risk. Poor security selection or focus on securities in a particular sector, category, or group of companies may cause the Fund to underperform relevant benchmarks or other funds with a similar investment objective. Even if the Adviser implements the intended investment strategies, the implementation of the strategies may be unsuccessful in achieving the Fund’s investment objective.
Clipper Fund | Clipper Fund | Depositary Receipts Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Depositary Receipts Risk. Depositary Receipts, consisting of American Depositary Receipts, European Depositary Receipts, and Global Depositary Receipts, are certificates evidencing ownership of shares of a foreign issuer. Depositary Receipts are subject to many of the risks associated with investing directly in foreign securities. Depositary Receipts may trade at a discount, or a premium, to the underlying security and may be less liquid than the underlying securities listed on an exchange.
Clipper Fund | Clipper Fund | Fees and Expenses Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Fees and Expenses Risk. The Fund may not earn enough through income and capital appreciation to offset the operating expenses of the Fund. All mutual funds incur operating fees and expenses. Fees and expenses reduce the return that a shareholder may earn by investing in a fund, even when a fund has favorable performance. A low-return environment, or a bear market, increases the risk that a shareholder may lose money.
Clipper Fund | Clipper Fund | Foreign Currency Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Foreign Currency Risk. The change in value of a foreign currency against the U.S. dollar will result in a change in the U.S. dollar value of securities denominated in that foreign currency. For example, when the Fund holds a security that is denominated in a foreign currency, a decline of that foreign currency against the U.S. dollar would generally cause the value of the Fund’s shares to decline.
Clipper Fund | Clipper Fund | Mid- and Small-Capitalization Companies Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock
Mid- and Small-Capitalization Companies Risk. Companies with less than $10 billion in market capitalization are considered by the Adviser to be mid- or small-capitalization companies. Mid- and small-capitalization companies typically have more limited product lines, markets, and financial resources than larger companies and their securities may trade less frequently and in more limited volume than those of larger, more mature companies.
Clipper Fund | Clipper Fund | Clipper Fund  
Prospectus [Line Items] oef_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00%
Redemption Fee (as a percentage of Amount Redeemed) oef_RedemptionFeeOverRedemption 0.00%
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.00%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.13%
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 0.68%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 69
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 218
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 379
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 $ 847
Clipper Fund | S&P 500 Index reflects no deduction for fees, expenses or taxes  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 17.88%
Average Annual Return, Percent oef_AvgAnnlRtrPct 14.42%
Average Annual Return, Percent oef_AvgAnnlRtrPct 14.81%
Clipper Fund | Clipper Fund  
Prospectus [Line Items] oef_ProspectusLineItems  
Annual Return [Percent] oef_AnnlRtrPct 15.62%
Annual Return [Percent] oef_AnnlRtrPct 17.69%
Annual Return [Percent] oef_AnnlRtrPct (12.92%)
Annual Return [Percent] oef_AnnlRtrPct 29.63%
Annual Return [Percent] oef_AnnlRtrPct 9.96%
Annual Return [Percent] oef_AnnlRtrPct 17.78%
Annual Return [Percent] oef_AnnlRtrPct (18.75%)
Annual Return [Percent] oef_AnnlRtrPct 31.48%
Annual Return [Percent] oef_AnnlRtrPct 19.49%
Annual Return [Percent] oef_AnnlRtrPct 27.43%
Average Annual Return, Percent oef_AvgAnnlRtrPct 27.43%
Average Annual Return, Percent oef_AvgAnnlRtrPct 13.88%
Average Annual Return, Percent oef_AvgAnnlRtrPct 12.45%
Clipper Fund | Clipper Fund | After Taxes on Distributions  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 24.83%
Average Annual Return, Percent oef_AvgAnnlRtrPct 11.46%
Average Annual Return, Percent oef_AvgAnnlRtrPct 10.49%
Clipper Fund | Clipper Fund | After Taxes on Distributions and Sales  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 17.77%
Average Annual Return, Percent oef_AvgAnnlRtrPct 10.55%
Average Annual Return, Percent oef_AvgAnnlRtrPct 9.72%