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.

Shareholder Fees Caption [Optional Text]

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Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Optional Text]

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Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Expense Example [Heading]

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Example.

Expense Example Narrative [Text Block]

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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]

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Portfolio Turnover

Portfolio Turnover [Text Block]

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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 15% of the average value of its portfolio.

Portfolio Turnover, Rate

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15.00%

Strategy [Heading]

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Principal Investment Strategies of the Fund

Strategy Narrative [Text Block]

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Davis Selected Advisers, L.P. (“Davis Advisors” or the “Adviser”), the Fund’s investment adviser, uses the Davis Investment Discipline to invest at least 80% of the Fund’s net assets, plus any borrowing for investment purposes, in securities issued by American companies. The Fund invests 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. 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]

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Performance Results

Performance Narrative [Text Block]

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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.selectedfund.com or by calling 1-800-243-1575.

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. After-tax returns are shown only for Class S shares; after-tax returns for Class D shares will vary.

Performance Information Illustrates Variability of Returns [Text]

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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]

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1-800-243-1575

Performance Availability Website Address [Text]

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www.selectedfund.com

Performance Past Does Not Indicate Future [Text]

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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]

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Calendar Year Total Returns for Class S Shares

Bar Chart Closing [Text Block]

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	Returns	Period Ending
Highest Quarter	19.29%	June 30, 2020
Lowest Quarter	-25.90%	March 31, 2020
Year-to-Date	-0.05%	March 31, 2026

Bar Chart, Year to Date Return, Date

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Mar. 31, 2026

Bar Chart, Year to Date Return

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(0.05%)

Highest Quarterly Return, Label [Optional Text]

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Highest

Highest Quarterly Return, Date

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Jun. 30, 2020

Highest Quarterly Return

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19.29%

Lowest Quarterly Return, Label [Optional Text]

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Lowest

Lowest Quarterly Return, Date

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Mar. 31, 2020

Lowest Quarterly Return

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(25.90%)

Performance Table Uses Highest Federal Rate

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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

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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 Table One Class of after Tax Shown [Text]

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After-tax returns are shown only for Class S shares; after-tax returns for Class D shares will vary.

Average Annual Return, Caption [Optional Text]

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Average Annual Total Returns (For the periods ended December 31, 2025)

Selected American Shares | Selected American Shares | Risk Nondiversified Status [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Risk Not Insured Depository Institution [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Risk Lose Money [Member]

Prospectus [Line Items]

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Risk [Text Block]

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You may lose money by investing in the Fund.

Selected American Shares | Selected American Shares | Stock Market Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Common Stock Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Financial Services Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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Selected American Shares | Selected American Shares | Foreign Country Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Headline Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Large Capitalization Companies Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Manager Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Depositary Receipts Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Emerging Market Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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Emerging Market Risk. Securities of issuers in emerging and developing markets may offer special investment opportunities, but present risks relating to political, economic, or regulatory conditions not found in more mature markets, such as government controls on foreign investments, government restrictions on the transfer of securities, and less developed trading markets, exchanges, reporting standards, and legal and accounting systems. These securities may be more volatile and less liquid, which may also make them more difficult to value than securities in countries with developed economies.

Selected American Shares | Selected American Shares | Fees And Expenses Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Foreign Currency Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Mid And Small Capitalization Companies Risk [Member]

Prospectus [Line Items]

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Risk [Text Block]

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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.

Selected American Shares | Selected American Shares | Class S

Prospectus [Line Items]

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Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price)

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0.00%

Maximum Deferred Sales Charge (as a percentage of Offering Price)

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0.00%

Redemption Fee (as a percentage of Amount Redeemed)

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0.00%