Davis Series Davis Financial Fund Davis Opportunity Fund Davis Real Estate Fund Davis Balanced Fund Davis Government Bond Fund Davis Government Money Market Fund Class A Class C Class Y Class A Class C Class Y Class A Class C Class Y Class A Class C Class Y Class A Class C Class Y Class A Class C Class Y U.S. Government Securities Risk [Member] Repurchase Agreement Risk [Member] Stock Market Risk [Member] Common Stock Risk [Member] Real Estate Risk [Member] Financial Services Risk [Member] Changes in Debt Rating Risk [Member] Extension and Prepayment Risk [Member] Interest Rate Sensitivity Risk [Member] Focused Portfolio Risk [Member] Headline Risk [Member] Foreign Country Risk [Member] Large-Capitalization Companies Risk [Member] Manager Risk [Member] Preferred Stock Risk [Member] Bonds and Other Debt Securities Risk [Member] Depositary Receipts Risk [Member] Fees and Expenses Risk [Member] Inflation Risk [Member] Foreign Currency Risk [Member] Emerging Market Risk [Member] Mid- and Small-Capitalization Companies Risk [Member] High-Yield [Member] Shareholder Concentration Risk [Member] Variable Current Income Risk [Member] Credit Risk [Member] Interest Rate Risk [Member] S&P 500 Index reflects no deduction for fees, expenses or taxes S&P 500 Financials Index reflects no deduction for fees, expenses or taxes S&P 1500 Index reflects no deduction for fees, expenses or taxes Wilshire U.S. Real Estate Securities Index reflects no deduction for fees, expenses or taxes Bloomberg U.S. Aggregate Bond Index reflects no deduction for fees, expenses or taxes Bloomberg U.S. Government 1-3 Year Bond Index reflects no deduction for fees, expenses or taxes Manager Risk Member C000009546 Member S000003443 Member C000009536 Member index_ SP_500_ Financials_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member Foreign Country Risk Member CreditRiskMember C000009533 Member C000009543 Member Focused Portfolio Risk Member USGovernment Securities Risk Member C000009542 Member S000003446 Member Headline Risk Member Variable Current Income Risk Member S000003444 Member C000009537 Member index_ Wilshire_ US_ Real_ Estate_ Securities_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member Bonds And Other Debt Securities Risk Member index_ SP_1500_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member S000003447 Member Real Estate Risk Member C000009549 Member Foreign Currency Risk Member Mid And Small Capitalization Companies Risk Member C000009534 Member Fees And Expenses Risk Member C000009529 Member C000009531 Member Common Stock Risk Member Emerging Market Risk Member C000009538 Member Changes In Debt Rating Risk Member S000003445 Member Preferred Stock Risk Member Financial Services Risk Member Large Capitalization Companies Risk Member C000009545 Member C000009527 Member C000009530 Member C000009550 Member Stock Market Risk Member High Yield Member Interest Rate Sensitivity Risk Member C000009547 Member Extension And Prepayment Risk Member doc_ Davis_ Series Member index_ Bloomberg_ US_ Government_13_ Year_ Bond_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member InterestRateRiskMember Shareholder Concentration Risk Member C000009539 Member Depositary Receipts Risk Member index_ SP_500_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member Repurchase Agreement Risk Member Inflation Risk Member index_ Bloomberg_ US_ Aggregate_ Bond_ Index_reflects_no_deduction_for_fees_expenses_or_taxes Member C000009541 Member S000003442 Member