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Label Element Value
Prospectus [Line Items] rr_ProspectusLineItems  
Document Type dei_DocumentType 485BPOS
Document Period End Date dei_DocumentPeriodEndDate Dec. 31, 2021
Entity Registrant Name dei_EntityRegistrantName DAVIS VARIABLE ACCOUNT FUND, INC.
Entity Central Index Key dei_EntityCentralIndexKey 0001084060
Entity Inv Company Type dei_EntityInvCompanyType N-1A
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Apr. 29, 2022
Document Effective Date dei_DocumentEffectiveDate Apr. 29, 2022
Prospectus Date rr_ProspectusDate Apr. 29, 2022
Davis Value Portfolio  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Davis Value Portfolio Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund seeks long-term growth 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.
OWNERS OF VARIABLE INSURANCE CONTRACTS THAT INVEST IN THE SHARES SHOULD REFER TO THE VARIABLE INSURANCE CONTRACT PROSPECTUS FOR A DESCRIPTION OF FEES AND EXPENSES, AS THE TABLE AND EXAMPLES DO NOT REFLECT DEDUCTIONS AT THE SEPARATE ACCOUNT LEVEL OR CONTRACT LEVEL. INCLUSION OF THESE CHARGES WOULD INCREASE THE FEES AND EXPENSES DESCRIBED BELOW.
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. 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 20% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 20.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
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 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 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 Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Davis Selected Advisers, L.P. (“Davis Advisors” or the “Adviser”), the Fund’s investment adviser, uses the Davis Investment Discipline to invest Davis Value Portfolio’s portfolio principally in common stocks (including indirect holdings of common stock through depositary receipts) 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.
Risk [Heading] rr_RiskHeading Principal Risks of Investing in Davis Value Portfolio
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
You may lose money by investing in the Fund. Investors in the Fund should have a long-term perspective and be able to tolerate potentially sharp declines in value.
The principal risks of investing in the Fund are:
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.
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.
Financial Services Risk. Risks of investing in the financial services sector include: (i) 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; (ii) regulatory actions: financial services companies may suffer setbacks if regulators change the rules under which they operate; (iii) changes in interest rates: unstable and/or rising interest rates may have a disproportionate effect on companies in the financial services sector; (iv) non-diversified loan portfolios: financial services companies may have concentrated portfolios that makes them vulnerable to economic conditions that affect an industry; (v) credit: financial services companies may have exposure to investments or agreements that may lead to losses; and (vi) competition: the financial services sector has become increasingly competitive.
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.
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.
Large-Capitalization Companies Risk. The Adviser considers companies with $10 billion or more in market capitalization 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.
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.
Depositary Receipts Risk. Depositary receipts, consisting of American Depositary Receipts (“ADRs”), 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.
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.
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.
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.
Mid- and Small-Capitalization Companies Risk. The Adviser considers companies with less than $10 billion in market capitalization 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.
Your investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency, entity or person.
Risk Lose Money [Text] rr_RiskLoseMoney You may lose money by investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution Your investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency, entity or person.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance Results
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart below provides some indication of the risks of investing in Davis Value Portfolio by showing how the Fund’s investment results have varied from year to year. The bar chart depicts the change in performance from year to year during the periods indicated, but does not include charges or expenses attributable to any insurance product, which would lower the performance illustrated. The following table shows how the Fund’s average annual total returns for the periods indicated compare with those of the S&P 500® Index, a broad-based securities market index. The Fund’s past performance 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.davisfunds.com or by calling 1-800-279-0279.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart below provides some indication of the risks of investing in Davis Value Portfolio by showing how the Fund’s investment results have varied from year to year.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-800-279-0279
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.davisfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Calendar Year Total Returns
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest/Lowest quarterly results during the time period were:
Highest 19.02% (quarter ended December 31, 2020)
Lowest -25.71% (quarter ended March 31, 2020)
Total return for the three months ended March 31, 2022 (non-annualized) was -6.24%.
                 
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (For the periods ended December 31, 2021)
Davis Value Portfolio | S&P 500®Index  
Prospectus [Line Items] rr_ProspectusLineItems  
1 Year rr_AverageAnnualReturnYear01 28.71%
5 Years rr_AverageAnnualReturnYear05 18.46%
10 Years rr_AverageAnnualReturnYear10 16.54%
Davis Value Portfolio | Davis Value Portfolio Shares  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol QDVPAX
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.10%
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
Annual Return 2012 rr_AnnualReturn2012 13.08%
Annual Return 2013 rr_AnnualReturn2013 33.43%
Annual Return 2014 rr_AnnualReturn2014 6.06%
Annual Return 2015 rr_AnnualReturn2015 1.60%
Annual Return 2016 rr_AnnualReturn2016 11.88%
Annual Return 2017 rr_AnnualReturn2017 22.63%
Annual Return 2018 rr_AnnualReturn2018 (13.60%)
Annual Return 2019 rr_AnnualReturn2019 31.17%
Annual Return 2020 rr_AnnualReturn2020 11.72%
Annual Return 2021 rr_AnnualReturn2021 17.85%
Year to Date Return, Label rr_YearToDateReturnLabel Total return for the three months ended March 31, 2022
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Mar. 31, 2022
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (6.24%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 19.02%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (25.71%)
1 Year rr_AverageAnnualReturnYear01 17.85%
5 Years rr_AverageAnnualReturnYear05 12.84%
10 Years rr_AverageAnnualReturnYear10 12.77%
Davis Financial Portfolio  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Davis Financial Portfolio Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund seeks long-term growth 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.
OWNERS OF VARIABLE INSURANCE CONTRACTS THAT INVEST IN THE SHARES SHOULD REFER TO THE VARIABLE INSURANCE CONTRACT PROSPECTUS FOR A DESCRIPTION OF FEES AND EXPENSES, AS THE TABLE AND EXAMPLES DO NOT REFLECT DEDUCTIONS AT THE SEPARATE ACCOUNT LEVEL OR CONTRACT LEVEL. INCLUSION OF THESE CHARGES WOULD INCREASE THE FEES AND EXPENSES DESCRIBED BELOW.
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. 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 13% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 13.00%
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
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 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 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 Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Davis Selected Advisers, L.P. (“Davis Advisors” or the “Adviser”), the Fund’s investment adviser, uses the Davis Investment Discipline to invest, under normal market conditions, at least 80% of the Fund’s net assets, plus any borrowing for investment purposes, in securities issued by companies principally engaged in the financial services sector. The Fund invests principally in common stocks (including indirect holdings of common stock through depositary receipts). The Fund may invest in large, medium or small companies without regard to market capitalization and may invest in issuers in foreign countries, including countries with developed or emerging markets.
A company is principally engaged in financial services if it owns financial services-related assets that constitute at least 50% of the value of all of its assets, or if it derives at least 50% of its revenues from providing financial services. Companies are classified by GICS based on their principal business activity. Revenue is a key factor in determining a firm’s principal business activity. Companies with their principal business activity in one of the following areas are considered financial service firms: banks, thrifts and mortgage, specialized finance, consumer finance, asset management & custody banks, investment banking & brokerage, diversified capital markets, financial exchanges and data, mortgage REITs and insurance.
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.
Risk [Heading] rr_RiskHeading Principal Risks of Investing in Davis Financial Portfolio
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
You may lose money by investing in the Fund. Investors in the Fund should have a long-term perspective and be able to tolerate potentially sharp declines in value.
The principal risks of investing in the Fund are:
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.
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.
Financial Services Risk. Risks of investing in the financial services sector include: (i) 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; (ii) regulatory actions: financial services companies may suffer setbacks if regulators change the rules under which they operate; (iii) changes in interest rates: unstable and/or rising interest rates may have a disproportionate effect on companies in the financial services sector; (iv) non-diversified loan portfolios: financial services companies may have concentrated portfolios that makes them vulnerable to economic conditions that affect an industry; (v) credit: financial services companies may have exposure to investments or agreements that may lead to losses; and (vi) competition: the financial services sector has become increasingly competitive.
Credit Risk. Financial institutions are often highly leveraged and may not be able to make timely payments of interest and principal.
Interest Rate Sensitivity Risk. Interest rates may have a powerful influence on the earnings of financial institutions.
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.
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.
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.
Large-Capitalization Companies Risk. The Adviser considers companies with $10 billion or more in market capitalization 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.
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.
Depositary Receipts Risk. Depositary receipts, consisting of American Depositary Receipts (“ADRs”), 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.
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.
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.
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.
Mid- and Small-Capitalization Companies Risk. The Adviser considers companies with less than $10 billion in market capitalization 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.
Your investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency, entity or person.
Risk Lose Money [Text] rr_RiskLoseMoney You may lose money by investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution Your investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency, entity or person.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance Results
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart below provides some indication of the risks of investing in Davis Financial Portfolio by showing how the Fund’s investment results have varied from year to year. The bar chart depicts the change in performance from year to year during the periods indicated, but does not include charges or expenses attributable to any insurance product, which would lower the performance illustrated. The following table shows how the Fund’s average annual total returns for the periods indicated compare with those of the S&P 500® Index, a broad-based securities market index. The Fund’s past performance 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.davisfunds.com or by calling 1-800-279-0279.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart below provides some indication of the risks of investing in Davis Financial Portfolio by showing how the Fund’s investment results have varied from year to year.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-800-279-0279
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.davisfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Calendar Year Total Returns
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest/Lowest quarterly results during the time period were:
Highest 26.76% (quarter ended December 31, 2020)
Lowest -34.45% (quarter ended March 31, 2020)
Total return for the three months ended March 31, 2022 (non-annualized) was 0.50%.
 
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (For the periods ended December 31, 2021)
Davis Financial Portfolio | S&P 500® Index  
Prospectus [Line Items] rr_ProspectusLineItems  
1 Year rr_AverageAnnualReturnYear01 28.71%
5 Years rr_AverageAnnualReturnYear05 18.46%
10 Years rr_AverageAnnualReturnYear10 16.54%
Davis Financial Portfolio | Davis Financial Portfolio Shares  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol QDFPAX
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.15%
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.70%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 72
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 224
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 390
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 871
Annual Return 2012 rr_AnnualReturn2012 18.83%
Annual Return 2013 rr_AnnualReturn2013 31.26%
Annual Return 2014 rr_AnnualReturn2014 12.85%
Annual Return 2015 rr_AnnualReturn2015 2.01%
Annual Return 2016 rr_AnnualReturn2016 14.25%
Annual Return 2017 rr_AnnualReturn2017 21.42%
Annual Return 2018 rr_AnnualReturn2018 (10.67%)
Annual Return 2019 rr_AnnualReturn2019 25.86%
Annual Return 2020 rr_AnnualReturn2020 (5.99%)
Annual Return 2021 rr_AnnualReturn2021 30.54%
Year to Date Return, Label rr_YearToDateReturnLabel Total return for the three months ended March 31, 2022
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Mar. 31, 2022
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 0.50%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 26.76%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (34.45%)
1 Year rr_AverageAnnualReturnYear01 30.54%
5 Years rr_AverageAnnualReturnYear05 10.86%
10 Years rr_AverageAnnualReturnYear10 13.13%
Davis Real Estate Portfolio  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Davis Real Estate Portfolio Summary
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The Fund seeks total return through a combination of growth and income.
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.
OWNERS OF VARIABLE INSURANCE CONTRACTS THAT INVEST IN THE SHARES SHOULD REFER TO THE VARIABLE INSURANCE CONTRACT PROSPECTUS FOR A DESCRIPTION OF FEES AND EXPENSES, AS THE TABLE AND EXAMPLES DO NOT REFLECT DEDUCTIONS AT THE SEPARATE ACCOUNT LEVEL OR CONTRACT LEVEL. INCLUSION OF THESE CHARGES WOULD INCREASE THE FEES AND EXPENSES DESCRIBED BELOW.
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. 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 28% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 28.00%
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Davis Selected Advisers, L.P. (“Davis Advisors” or the “Adviser”), the Fund’s investment adviser, uses the Davis Investment Discipline to invest, under normal market conditions, at least 80% of the Fund’s net assets, plus any borrowing for investment purposes, in securities issued by companies principally engaged in the real estate industry. The Fund invests principally in common stocks of domestic companies and may invest in foreign companies (including indirect holdings of a foreign issuer’s common stock through depositary receipts).
A company is principally engaged in the real estate industry if it owns real estate or real estate-related assets that constitute at least 50% of the value of all of its assets, or if it derives at least 50% of its revenues or net profits from owning, financing, developing, managing or selling real estate, or from offering products or services that are related to real estate. Issuers of real estate securities include real estate investment trusts (“REITs”), brokers, developers, lenders, and companies with substantial real estate holdings such as paper, lumber, hotel, and entertainment companies. Most of Davis Real Estate Portfolio’s real estate securities are, and will likely continue to be, interests in publicly traded REITs. REITs pool investors’ funds to make real estate-related investments, such as buying interests in income-producing property or making loans to real estate developers.
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.
Risk [Heading] rr_RiskHeading Principal Risks of Investing in Davis Real Estate Portfolio
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock
You may lose money by investing in the Fund. Investors in the Fund should have a long-term perspective and be able to tolerate potentially sharp declines in value.
The principal risks of investing in the Fund are:
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.
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.
Real Estate Risk. Real estate securities are susceptible to the many risks associated with the direct ownership of real estate, including declines in property values, increases in property taxes, operating expenses, interest rates or competition, overbuilding, changes in zoning laws, or losses from casualty or condemnation.
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.
Large-Capitalization Companies Risk. The Adviser considers companies with $10 billion or more in market capitalization 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.
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.
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.
Mid- and Small-Capitalization Companies Risk. The Adviser considers companies with less than $10 billion in market capitalization 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.
Variable Current Income Risk. The income that the Fund pays to investors is not stable.
Your investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency, entity or person.
Risk Lose Money [Text] rr_RiskLoseMoney You may lose money by investing in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution Your investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency, entity or person.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance Results
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart below provides some indication of the risks of investing in Davis Real Estate Portfolio by showing how the Fund’s investment results have varied from year to year. The bar chart depicts the change in performance from year to year during the periods indicated, but does not include charges or expenses attributable to any insurance product, which would lower the performance illustrated. The following table shows how the Fund’s average annual total returns for the periods indicated compare with those of the S&P 500® Index, a broad-based securities market index, and of the Wilshire U.S. Real Estate Securities Index. The Wilshire U.S. Real Estate Securities Index is a measure of the performance of publicly traded real estate securities. The Fund’s past performance 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.davisfunds.com or by calling 1-800-279-0279.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart below provides some indication of the risks of investing in Davis Real Estate Portfolio by showing how the Fund’s investment results have varied from year to year.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 1-800-279-0279
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.davisfunds.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Calendar Year Total Returns
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest/Lowest quarterly results during the time period were:
Highest 16.90% (quarter ended March 31, 2019)
Lowest -25.75% (quarter ended March 31, 2020)
Total return for the three months ended March 31, 2022 (non-annualized) was -3.60%.
          
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (For the periods ended December 31, 2021)
Davis Real Estate Portfolio | Wilshire U.S. Real Estate Securities Index  
Prospectus [Line Items] rr_ProspectusLineItems  
1 Year rr_AverageAnnualReturnYear01 46.11%
5 Years rr_AverageAnnualReturnYear05 11.04%
10 Years rr_AverageAnnualReturnYear10 11.63%
Davis Real Estate Portfolio | S&P 500® Index  
Prospectus [Line Items] rr_ProspectusLineItems  
1 Year rr_AverageAnnualReturnYear01 28.71%
5 Years rr_AverageAnnualReturnYear05 18.46%
10 Years rr_AverageAnnualReturnYear10 16.54%
Davis Real Estate Portfolio | Davis Real Estate Portfolio Shares  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol QDRPAX
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets 0.42%
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 2012 rr_AnnualReturn2012 17.15%
Annual Return 2013 rr_AnnualReturn2013 (1.32%)
Annual Return 2014 rr_AnnualReturn2014 27.54%
Annual Return 2015 rr_AnnualReturn2015 1.65%
Annual Return 2016 rr_AnnualReturn2016 9.70%
Annual Return 2017 rr_AnnualReturn2017 8.25%
Annual Return 2018 rr_AnnualReturn2018 (4.82%)
Annual Return 2019 rr_AnnualReturn2019 25.74%
Annual Return 2020 rr_AnnualReturn2020 (8.08%)
Annual Return 2021 rr_AnnualReturn2021 41.98%
Year to Date Return, Label rr_YearToDateReturnLabel Total return for the three months ended March 31, 2022
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Mar. 31, 2022
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn (3.60%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Highest
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2019
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 16.90%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Lowest
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (25.75%)
1 Year rr_AverageAnnualReturnYear01 41.98%
5 Years rr_AverageAnnualReturnYear05 11.07%
10 Years rr_AverageAnnualReturnYear10 10.76%