2.2.0.25truefalse010000 - Document - Risk/Return Summary {Unlabeled}falsefalsetrue1falsefalseUSDtruefalse{dei_LegalEntityAxis} : Davis Global Fund 3/1/2011 - 3/1/2011 USD ($) $c_S000003441http://www.sec.gov/CIK0000071701duration2011-03-01T00:00:002011-03-01T00:00:00falsefalsedgif_S000003441Memberdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberRatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://xbrl.sec.gov/rr/role/riskreturn1falsefalsefalse00Davis Global FundDavis Global Fundfalsefalsefalsefalsefalse1falsefalseUSDtruefalse{dei_LegalEntityAxis} : Davis Global Fund 3/1/2011 - 3/1/2011 USD ($) $c_S000003441http://www.sec.gov/CIK0000071701duration2011-03-01T00:00:002011-03-01T00:00:00falsefalsedgif_S000003441Memberdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberRatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalseDavis Global Fund3false0rr_RiskReturnHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 <big> Fund Summary: Davis Global Fund </big> </bgt;falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/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 indicatedReference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 falsefalseRisk/Return4false0rr_ObjectiveHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Investment ObjectivefalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringInvestment 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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 -Subsection a falsefalseINVESTMENT OBJECTIVE:5false0rr_ObjectivePrimaryTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Davis Global Fund's investment objective is long-term growth of capital.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringInvestment 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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 -Subsection a falsefalseINVESTMENT OBJECTIVE6false0rr_ExpenseHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Fees and Expenses of Davis Global FundfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph d -Subsection instructions falsefalseFees and expenses of the fund:7false0rr_ExpenseNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00This table describes the fees and expenses that you may pay if you buy and hold shares of Davis Global Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Davis Funds. More information about these and other discounts is available from your financial professional and in the "How to Choose a Share Class, Class A shares" section of the Fund's statutory prospectus on page 32 and in the "Selecting the Appropriate Class of Shares" section of the Fund's statement of additional information on page 50.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThis 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. Include the narrative explanations in the order indicated. A Fund may modify the narrative explanations if the explanation contains comparable information to that shown.The narrative explanation regarding sales charge discounts is only required by a Fund that offers such discounts and should specify the minimum level of investment required to qualify for a discount. Modify the narrative explanation to state that Fund shares are sold on a national securities exchange at the end of the time periods indicated, and that brokerage commissions for buying and selling Fund shares through a broker are not reflected.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph b -Subsection instructions falsefalseFees and expenses of the fund, narrative8false0rr_ShareholderFeesCaptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Shareholder Fees (fees paid directly from your investment)falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringShareholder Fees (fees paid directly from your investment).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subsection table falsefalseShareholder fees, caption9false0rr_ShareholderFeesTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00~ http://xbrl.sec.gov/rr/role/ShareholderFeesData column dei_LegalEntityAxis compact dgif_S000003441Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsefalse~ http://xbrl.sec.gov/rr/role/ShareholderFeesData column dei_LegalEntityAxis compact dgif_S000003441Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsehttp://xbrl.sec.gov/rr/role/ShareholderFeesDatafalsefalse020010 - Schedule - Shareholder Feestruefalsefalse1falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009524Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class AUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$2falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Brr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009525Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class BUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$3falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Crr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009526Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class CUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$4falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Yrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039882Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class YUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$1falseRowprimaryElement*3false0rr_MaximumCumulativeSalesChargeOverOfferingPricerrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.04750.0475falsefalsefalsetruefalse2truetruetrue0.00000.0000falsefalsefalsetruefalse3truetruetrue0.00000.0000falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalse5truetruetrue0.04750.0475falsefalsefalsetruefalse6truetruetrue0.00000.0000falsefalsefalsetruefalse7truetruetrue0.00000.0000falsefalsefalsetruefalse8truetruetrue0.00000.0000falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureMaximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price). If a sales charge (load) is imposed on shares purchased with reinvested capital gains distributions or returns of capital, include the bracketed words in the third caption.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 1 -Subsection table falsefalseMaximum sales charge (load) imposed on purchases (as a percentage of offering price)0rr_MaximumCumulativeSalesChargeOverOfferingPricetruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.04750.0475falsefalsefalsetruefalse2truetruetrue0.00000.0000falsefalsefalsetruefalse3truetruetrue0.00000.0000falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalseMaximum sales charge (load) imposed on purchases (as a percentage of offering price)2falseRowprimaryElement*4false0rr_MaximumDeferredSalesChargeOverOtherrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00500.0050falsefalsefalsetruefalse2truetruetrue0.04000.0400falsefalsefalsetruefalse3truetruetrue0.01000.0100falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalse5truetruetrue0.00500.0050falsefalsefalsetruefalse6truetruetrue0.04000.0400falsefalsefalsetruefalse7truetruetrue0.01000.0100falsefalsefalsetruefalse8truetruetrue0.00000.0000falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureMaximum Deferred Sales Charge (Load) (as a percentage of ____) "Maximum Deferred Sales Charge (Load)" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read "Maximum Sales Charge (Load)" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 2 -Subparagraph a -Clause i -Subsection instructions falsefalseMaximum deferred sales charge (load) imposed on redemptons (as a percentage of the lesser of the net asset value of the shares redeemed or the total cost of such shares. Only applies to Class A shares if you buy shares valued at $1 million or more without a sales charge and sell the shares within one year of purchase.)0rr_MaximumDeferredSalesChargeOverOthertruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00500.0050falsefalsefalsetruefalse2truetruetrue0.04000.0400falsefalsefalsetruefalse3truetruetrue0.01000.0100falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalseMaximum deferred sales charge (load) imposed on redemptons (as a percentage of the lesser of the net asset value of the shares redeemed or the total cost of such shares. Only applies to Class A shares if you buy shares valued at $1 million or more without a sales charge and sell the shares within one year of purchase.)3falseRowprimaryElement*5false0rr_RedemptionFeeOverRedemptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0200-0.0200falsefalsefalsetruefalse2truetruetrue-0.0200-0.0200falsefalsefalsetruefalse3truetruetrue-0.0200-0.0200falsefalsefalsetruefalse4truetruetrue-0.0200-0.0200falsefalsefalsetruefalse5truetruetrue-0.0200-0.0200falsefalsefalsetruefalse6truetruetrue-0.0200-0.0200falsefalsefalsetruefalse7truetruetrue-0.0200-0.0200falsefalsefalsetruefalse8truetruetrue-0.0200-0.0200falsefalsefalsetruefalseOtherrr:NonPositivePure4Typepure"Redemption Fee" (as a percentage of amount redeemed, if applicable) If the Fund is an Exchange-Traded Fund and issues or redeems shares in creation units of not less than 25,000 shares each, exclude any fees charged for the purchase and redemption of the Fund's creation units. "Redemption Fee" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 2 -Subparagraph b -Subsection instructions falsefalseRedemption fee (as a percentage of total redemption proceeds on shares redeemed or exchanged within 30 days)0rr_RedemptionFeeOverRedemptiontruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0200-0.0200falsefalsefalsetruefalse2truetruetrue-0.0200-0.0200falsefalsefalsetruefalse3truetruetrue-0.0200-0.0200falsefalsefalsetruefalse4truetruetrue-0.0200-0.0200falsefalsefalsetruefalseOthernanafalsefalseRedemption fee (as a percentage of total redemption proceeds on shares redeemed or exchanged within 30 days)43Shareholder Fees Davis Global FundUnKnownUnKnownUnKnownUnKnownfalsetrueColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to ShareholderFeesData.No authoritative reference available.falsefalseShareholder fees, table10false0rr_OperatingExpensesCaptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringAnnual Fund Operating Expenses (ongoing expenses that you pay each year as a percentage of the value of your investment)Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 7 -Subsection table falsefalseAnnual fund operating expenses, heading11false0rr_AnnualFundOperatingExpensesTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00~ http://xbrl.sec.gov/rr/role/OperatingExpensesData column dei_LegalEntityAxis compact dgif_S000003441Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsefalse~ http://xbrl.sec.gov/rr/role/OperatingExpensesData column dei_LegalEntityAxis compact dgif_S000003441Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsehttp://xbrl.sec.gov/rr/role/OperatingExpensesDatafalsefalse020020 - Schedule - Annual Fund Operating Expensestruefalsefalse1falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009524Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class AUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$2falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Brr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009525Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class BUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$3falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Crr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009526Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class CUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$4falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Yrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039882Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class YUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$1falseRowprimaryElement*3false0rr_ManagementFeesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00550.0055falsefalsefalsetruefalse2truetruetrue0.00550.0055falsefalsefalsetruefalse3truetruetrue0.00550.0055falsefalsefalsetruefalse4truetruetrue0.00550.0055falsefalsefalsetruefalse5truetruetrue0.00550.0055falsefalsefalsetruefalse6truetruetrue0.00550.0055falsefalsefalsetruefalse7truetruetrue0.00550.0055falsefalsefalsetruefalse8truetruetrue0.00550.0055falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureManagement 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."Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 3 -Subparagraph a -Subsection instructions falsefalseManagement Fees0rr_ManagementFeesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00550.0055falsefalsefalsetruefalse2truetruetrue0.00550.0055falsefalsefalsetruefalse3truetruetrue0.00550.0055falsefalsefalsetruefalse4truetruetrue0.00550.0055falsefalsefalsetruefalseOthernanafalsefalseManagement Fees2falseRowprimaryElement*4false0rr_DistributionAndService12b1FeesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00250.0025falsefalsefalsetruefalse2truetruetrue0.01000.0100falsefalsefalsetruefalse3truetruetrue0.01000.0100falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalse5truetruetrue0.00250.0025falsefalsefalsetruefalse6truetruetrue0.01000.0100falsefalsefalsetruefalse7truetruetrue0.01000.0100falsefalsefalsetruefalse8truetruetrue0.00000.0000falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureDistribution [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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 9 -Subsection table falsefalseDistribution and/or Service (12b-1) Fees0rr_DistributionAndService12b1FeesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00250.0025falsefalsefalsetruefalse2truetruetrue0.01000.0100falsefalsefalsetruefalse3truetruetrue0.01000.0100falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalseDistribution and/or Service (12b-1) Fees3falseRowprimaryElement*5false0rr_OtherExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00380.0038falsefalsefalsetruefalse2truetruetrue0.00720.0072falsefalsefalsetruefalse3truetruetrue0.00500.0050falsefalsefalsetruefalse4truetruetrue0.00280.0028falsefalsefalsetruefalse5truetruetrue0.01260.0126falsefalsefalsetruefalse6truetruetrue0.06500.0650falsefalsefalsetruefalse7truetruetrue0.08360.0836falsefalsefalsetruefalse8truetruetrue0.02370.0237falsefalsefalsetruefalseOtherrr:NonNegativePure4Typepure"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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 3 -Subparagraph c -Clause i -Subsection instructions falsefalseOther Expenses0rr_OtherExpensesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00380.0038falsefalsefalsetruefalse2truetruetrue0.00720.0072falsefalsefalsetruefalse3truetruetrue0.00500.0050falsefalsefalsetruefalse4truetruetrue0.00280.0028falsefalsefalsetruefalseOthernanafalsefalseOther Expenses4falseRowprimaryElement*6false0rr_ExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01180.0118falsefalsefalsetruefalse2truetruetrue0.02270.0227falsefalsefalsetruefalse3truetruetrue0.02050.0205falsefalsefalsetruefalse4truetruetrue0.00830.0083falsefalsefalsetruefalse5truetruetrue0.02060.0206falsefalsefalsetruefalse6truetruetrue0.08050.0805falsefalsefalsetruefalse7truetruetrue0.09910.0991falsefalsefalsetruefalse8truetruetrue0.02920.0292falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureTotal 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."Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 3 -Subparagraph d -Subsection instructions falsefalseTotal Annual Operating Expenses0rr_ExpensesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01180.0118falsefalsefalsetruefalse2truetruetrue0.02270.0227falsefalsefalsetruefalse3truetruetrue0.02050.0205falsefalsefalsetruefalse4truetruetrue0.00830.0083falsefalsefalsetruefalseOthernanafalsefalseTotal Annual Operating Expenses5falseRowprimaryElement*7false0rr_FeeWaiverOrReimbursementOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00000.0000[1]falsefalsefalsetruefalse2truetruetrue0.00000.0000[1]falsefalsefalsetruefalse3truetruetrue0.00000.0000[1]falsefalsefalsetruefalse4truetruetrue0.00000.0000[1]falsefalsefalsetruefalse5truetruetrue-0.0076-0.0076[1]falsefalsefalsetruefalse6truetruetrue-0.0575-0.0575[1]falsefalsefalsetruefalse7truetruetrue-0.0761-0.0761[1]falsefalsefalsetruefalse8truetruetrue-0.0187-0.0187[1]falsefalsefalsetruefalseOtherrr:NonPositivePure4TypepureTotal Annual Fund Operating Expenses. If there were expense reimbursement or fee waiver arrangements that reduced any Fund operating expenses and will continue to reduce them for no less than one year from the effective date of the Fund's registration statement, a Fund may add two captions to the table one caption showing the amount of the expense reimbursement or fee waiver, and a second caption showing the Fund's net expenses after subtracting the fee reimbursement or expense waiver from the total fund operating expenses. The Fund should place these additional captions directly below the "Total Annual Fund Operating Expenses" caption of the table and should use appropriate descriptive captions, such as "Fee Waiver [and/or Expense Reimbursement]" and "Total Annual Fund Operating Expenses After Fee Waiver [and/or Expense Reimbursement]," respectively. If the Fund provides this disclosure, also disclose the period for which the expense reimbursement or fee waiver arrangement is expected to continue, and briefly describe who can terminate the arrangement and under what circumstances.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 11 -Subsection table falsefalseLess Fee Waiver or Expense Reimbursement0rr_FeeWaiverOrReimbursementOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse[1]1truetruetrue0.00000.0000falsefalsefalsetruefalse2truetruetrue0.00000.0000falsefalsefalsetruefalse3truetruetrue0.00000.0000falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalseLess Fee Waiver or Expense Reimbursement6falseRowprimaryElement*8false0rr_NetExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01180.0118falsefalsefalsetruefalse2truetruetrue0.02270.0227falsefalsefalsetruefalse3truetruetrue0.02050.0205falsefalsefalsetruefalse4truetruetrue0.00830.0083falsefalsefalsetruefalse5truetruetrue0.01300.0130falsefalsefalsetruefalse6truetruetrue0.02300.0230falsefalsefalsetruefalse7truetruetrue0.02300.0230falsefalsefalsetruefalse8truetruetrue0.01050.0105falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 11 -Subsection table falsefalseNet Expenses0rr_NetExpensesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01180.0118falsefalsefalsetruefalse2truetruetrue0.02270.0227falsefalsefalsetruefalse3truetruetrue0.02050.0205falsefalsefalsetruefalse4truetruetrue0.00830.0083falsefalsefalsetruefalseOthernanafalsefalseNet Expenses1 The Adviser is contractually committed to waive fees and/or reimburse the Fund's expenses to the extent necessary to cap total annual Fund operating expenses (Class A shares, 1.30%; Class B shares, 2.30%; Class C shares, 2.30%; Class Y shares, 1.05%) until March 1, 2012. After that date, there is no assurance that the Adviser will continue to cap expenses. The expense cap cannot be terminated prior to March 1, 2012, without the consent of the Board of Directors. 46Annual Fund Operating Expenses Davis Global FundUnKnownUnKnownUnKnownUnKnownfalsetrueColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to OperatingExpensesData.No authoritative reference available.falsefalseAnnual fund operating expenses, table12false0rr_ExpenseExampleHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00ExamplefalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringHeading for Expense Example.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 4 -Subsection instructions falsefalseExample, heading13false0rr_ExpenseExampleNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. This Example assumes that you invest $10,000 in Davis Global Fund for the time periods indicated and then redeem all of your shares at the end of those periods. This 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:falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThe Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 1 -Subsection example falsefalseExpense Example, Narrative14false0rr_ExpenseExampleWithRedemptionTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00~ http://xbrl.sec.gov/rr/role/ExpenseExample column dei_LegalEntityAxis compact dgif_S000003441Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsefalse~ http://xbrl.sec.gov/rr/role/ExpenseExample column dei_LegalEntityAxis compact dgif_S000003441Member column rr_ProspectusShareClassAxis compact * row primary compact * ~truehttp://xbrl.sec.gov/rr/role/ExpenseExamplefalsefalse020030 - Schedule - Expense Example {Transposed}truefalsefalse1falseColumnprimaryElement*3false0rr_ExpenseExampleYear01rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue590590falsefalsefalsetruefalse2truefalsetrue630630falsefalsefalsetruefalse3truefalsetrue308308falsefalsefalsetruefalse4truefalsetrue8585falsefalsefalsetruefalse5truefalsetrue674674falsefalsefalsetruefalse6truefalsetrue11931193falsefalsefalsetruefalse7truefalsetrue10671067falsefalsefalsetruefalse8truefalsetrue295295falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 4 -Subsection instructions falsefalse1 YEARfalseUSDfalsefalse$2falseColumnprimaryElement*4false0rr_ExpenseExampleYear03rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue832832falsefalsefalsetruefalse2truefalsetrue10091009falsefalsefalsetruefalse3truefalsetrue643643falsefalsefalsetruefalse4truefalsetrue265265falsefalsefalsetruefalse5truefalsetrue10901090falsefalsefalsetruefalse6truefalsetrue26062606falsefalsefalsetruefalse7truefalsetrue27602760falsefalsefalsetruefalse8truefalsetrue904904falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 2 -Subsection example falsefalse3 YEARSfalseUSDfalsefalse$3falseColumnprimaryElement*5false0rr_ExpenseExampleYear05rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue10931093falsefalsefalsetruefalse2truefalsetrue14151415falsefalsefalsetruefalse3truefalsetrue11031103falsefalsefalsetruefalse4truefalsetrue460460falsefalsefalsetruefalse5truefalsetrue15311531falsefalsefalsetruefalse6truefalsetrue39293929falsefalsefalsetruefalse7truefalsetrue43814381falsefalsefalsetruefalse8truefalsetrue15381538falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 2 -Subsection example falsefalse5 YEARSfalseUSDfalsefalse$4falseColumnprimaryElement*6false0rr_ExpenseExampleYear10rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue18391839falsefalsefalsetruefalse2truefalsetrue22012201falsefalsefalsetruefalse3truefalsetrue23792379falsefalsefalsetruefalse4truefalsetrue10251025falsefalsefalsetruefalse5truefalsetrue27512751falsefalsefalsetruefalse6truefalsetrue55865586falsefalsefalsetruefalse7truefalsetrue77887788falsefalsefalsetruefalse8truefalsetrue32423242falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 2 -Subsection example falsefalse10 YEARSfalseUSDfalsefalse$1falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009524Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class AUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue590590falsefalsefalsetruefalse2truefalsetrue832832falsefalsefalsetruefalse3truefalsetrue10931093falsefalsefalsetruefalse4truefalsetrue18391839falsefalsefalsetruefalseOthernanafalsefalseDavis Global Fund - Class A2falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Brr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009525Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class BUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue630630falsefalsefalsetruefalse2truefalsetrue10091009falsefalsefalsetruefalse3truefalsetrue14151415falsefalsefalsetruefalse4truefalsetrue22012201falsefalsefalsetruefalseOthernanafalsefalseDavis Global Fund - Class B3falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Crr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009526Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class CUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue308308falsefalsefalsetruefalse2truefalsetrue643643falsefalsefalsetruefalse3truefalsetrue11031103falsefalsefalsetruefalse4truefalsetrue23792379falsefalsefalsetruefalseOthernanafalsefalseDavis Global Fund - Class C4falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Yrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039882Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class YUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue8585falsefalsefalsetruefalse2truefalsetrue265265falsefalsefalsetruefalse3truefalsetrue460460falsefalsefalsetruefalse4truefalsetrue10251025falsefalsefalsetruefalseOthernanafalsefalseDavis Global Fund - Class Y44Expense Example Davis Global Fund (USD $)UnKnownUnKnownUnKnownUnKnownfalsetrueColumnprimaryElement*RowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to ExpenseExample.No authoritative reference available.falsefalseExpense Example, with Redemption, table15false0rr_PortfolioTurnoverHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Portfolio TurnoverfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringDisclose 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 5 -Subsection instructions falsefalsePortfolio turnover, heading16false0rr_PortfolioTurnoverTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Davis Global 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 28% of the average value of its portfolio.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDisclose 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 3 -Subsection example falsefalsePortfolio turnover, narrative17false0rr_StrategyHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Principal Investment StrategiesfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection a falsefalseStrategy, Heading18false0rr_StrategyNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 Davis Selected Advisers, L.P. ("Davis Advisors" or the "Adviser"), the Fund's investment adviser, uses the Davis Investment Discipline to invest Davis Global Fund's portfolio primarily in equity securities (typically common stocks, but may also include preferred stocks, American Depository Receipts and Global Depository Receipts) issued by both United States and foreign companies, including countries with developed or emerging markets. The Fund may invest in large, medium, or small companies without regard to market capitalization. Under normal market conditions, the Fund will invest significantly (at least 40% of its total assets) in issuers: (i) organized or located outside of the U.S.; (ii) whose primary trading market is located outside the U.S.; or (iii) doing a substantial amount of business outside the U.S., which the Fund considers to be a company that derives at least 50% of its revenue from business outside the U.S. or has at least 50% of its assets outside the U.S. Typically, the Fund makes investments in a number of different countries. 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 equity securities which can be purchased at attractive valuations relative to their intrinsic value. Davis Advisors' goal is to invest in companies for the long term. Davis Advisors considers selling a company's equity securities if the securities' market price exceeds Davis Advisors' estimates of intrinsic value, or if the ratio of the risks and rewards of continuing to own the company's equity securities is no longer attractive. falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection a falsefalseStrategy, Narrative19false0rr_RiskHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Principal Risks of Investing in Davis Global Fund falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNarrative Risk Disclosure.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 1 -Subsection b falsefalseRisk, Heading20false0rr_RiskNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 You may lose money by investing in Davis Global Fund. Investors in Davis Global 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: <ul> <li> 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. </li> <li> 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. </li> <li> 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 are generally subordinate to an issuers' other securities, including convertible and preferred securities. </li> <li> Foreign Country risk. Foreign companies 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. </li> <li> Foreign Currency risk. Securities issued by foreign companies are frequently denominated in foreign currencies. 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. </li> <li> Emerging Market risk. The Fund invests in emerging or developing markets. Securities of issuers in emerging and developing markets may offer special investment opportunities, but present risks not found in more mature markets. </li> <li> Trading Markets and Depositary Receipts. Foreign securities may trade in the form of depositary receipts, including American, European and Global Depositary Receipts. Although depositary receipts have risks similar to the securities that they represent, they may also involve higher expenses and may trade at a discount (or premium) to the underlying security. In addition, depositary receipts may not pass through voting and other shareholder rights, and may be less liquid than the underlying securities listed on an exchange. </li> <li> Under $10 Billion Market Capitalization risk. Small- and mid-size 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. </li> <li> Headline risk. The Fund may make such investments when a company becomes the center of controversy after receiving adverse media attention. While Davis Advisors researches companies subject to such contingencies, they cannot be correct every time, and the company's stock may never recover. </li> <li> 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 which a shareholder may earn by investing in a fund. A low return environment, or a bear market, increases the risk that a shareholder may lose money. </li> </ul> 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. falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringNarrative Risk Disclosure. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 1 -Subparagraph i -Clause instruction -Subsection b falsefalseRisk, Narrative21false0rr_BarChartAndPerformanceTableHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Performance ResultsfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Bar Chart and Table.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subsection b falsefalseBar Chart and Performance Table, Heading22false0rr_BarChartNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 The bar chart below provides some indication of the risks of investing in Davis Global 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 those of the MSCI ACWI (All Country World 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.davisfunds.com or by calling 1-800-279-0279. After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. 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 a tax-deferred arrangement, such as a 401(k) plan or individual retirement accounts. During the period from inception (December 22, 2004) through December 29, 2006, only the directors, officers and employees of Davis Global Fund or its investment adviser and sub-adviser (and the investment adviser itself and affiliated companies) were eligible to purchase Fund shares. Since inception, the Fund's investment strategies and operations have remained substantially the same. falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringProvide 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph i -Subsection b falsefalseBar Chart, Narrative23false0rr_BarChartHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Calendar Year Total Returns for Class A SharesfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Bar Chart and Table.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subsection b falsefalseBar Chart, Heading24false0rr_BarChartTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00~ http://xbrl.sec.gov/rr/role/BarChartData column dei_LegalEntityAxis compact dgif_S000003441Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsefalseBarChart1.jpg~ http://xbrl.sec.gov/rr/role/BarChartData column dei_LegalEntityAxis compact dgif_S000003441Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsehttp://xbrl.sec.gov/rr/role/BarChartDatafalsefalse020050 - Schedule - Annual Total Returnstruefalsefalse1falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009524Memberrr_ProspectusShareClassAxisexplicitMemberDavis Global FundDavis Global Fund - Class AUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$1falseRowprimaryElement*3false0rr_AnnualReturn2005rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.13490.1349falsefalsefalsetruefalse2falsetruefalse00falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf 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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph ii -Subsection b falsefalse20050rr_AnnualReturn2005truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.13490.1349falsefalsefalsetruefalseOthernanafalsefalse20052falseRowprimaryElement*4false0rr_AnnualReturn2006rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.29760.2976falsefalsefalsetruefalse2falsetruefalse00falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf 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. 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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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit a -Subsection b falsefalse20070rr_AnnualReturn2007truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.17140.1714falsefalsefalsetruefalseOthernanafalsefalse20074falseRowprimaryElement*6false0rr_AnnualReturn2008rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.4992-0.4992falsefalsefalsetruefalse2truetruefalse-0.4861-0.4861falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf 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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph ii -Subsection b falsefalse20080rr_AnnualReturn2008truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.4992-0.4992falsefalsefalsetruefalseOthernanafalsefalse20085falseRowprimaryElement*7false0rr_AnnualReturn2009rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.45210.4521falsefalsefalsetruefalse2truetruefalse0.38320.3832falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf 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. 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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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph ii -Subsection b falsefalse20100rr_AnnualReturn2010truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.15130.1513falsefalsefalsetruefalseOthernanafalsefalse201016Annual Total Returns UnKnownUnKnownUnKnownUnKnownfalsetrueColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000003441MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to BarChartData.No authoritative reference available.falsefalseBar Chart25false0rr_PerformanceTableHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Davis Global Fund Average Annual Total Returns for the periods ended December 31, 2010falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringThis item represents Average Anuual 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit c -Subsection b falsefalsePerformance Table:26false0rr_PerformanceTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00~ http://xbrl.sec.gov/rr/role/PerformanceTableData column dei_LegalEntityAxis compact dgif_S000003441Member column rr_ProspectusShareClassAxis compact * column rr_PerformanceMeasureAxis compact * row primary compact * ~falsefalse~ http://xbrl.sec.gov/rr/role/PerformanceTableData column dei_LegalEntityAxis compact dgif_S000003441Member column rr_ProspectusShareClassAxis compact * column rr_PerformanceMeasureAxis compact * row primary compact * ~truehttp://xbrl.sec.gov/rr/role/PerformanceTableDatafalsefalse020060 - Schedule - Average Annual Total Returns {Transposed}truefalsefalse1falseColumnprimaryElement*3false0rr_AverageAnnualReturnYear01rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.09640.0964falsefalsefalsetruefalse2truetruetrue0.09370.0937falsefalsefalsetruefalse3truetruetrue0.06630.0663falsefalsefalsetruefalse4truetruetrue0.09680.0968falsefalsefalsetruefalse5truetruetrue0.13030.1303falsefalsefalsetruefalse6truetruetrue0.15370.1537falsefalsefalsetruefalse7truetruetrue0.12670.1267falsefalsefalsetruefalse8truetruetrue0.09410.0941falsefalsefalsetruefalse9truetruetrue0.09380.0938falsefalsefalsetruefalse10truetruetrue0.06240.0624falsefalsefalsetruefalse11truetruetrue0.09720.0972falsefalsefalsetruefalse12truetruetrue0.12720.1272falsefalsefalsetruefalse13truetruetrue0.15130.1513falsefalsefalsetruefalse14truetruetrue0.11150.1115falsefalsefalsetruefalseOtherxbrli:pureItemTypepureReturn Before Taxes.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 -Subsection b falsefalsePast 1 YearfalseUSDfalsefalse$2falseColumnprimaryElement*4false0rr_AverageAnnualReturnYear05rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.03930.0393falsefalsefalsetruefalse2truetruetrue0.03840.0384falsefalsefalsetruefalse3truetruetrue0.03460.0346falsefalsefalsetruefalse4truetruetrue0.03480.0348falsefalsefalsetruefalse5truetruetrue0.03890.0389falsefalsefalsetruefalse6falsetruetrue00falsefalsefalsetruefalse7truetruetrue0.03440.0344falsefalsefalsetruefalse8falsetruetrue00falsefalsefalsetruefalse9falsetruetrue00falsefalsefalsetruefalse10falsetruetrue00falsefalsefalsetruefalse11falsetruetrue00falsefalsefalsetruefalse12falsetruetrue00falsefalsefalsetruefalse13falsetruetrue00falsefalsefalsetruefalse14falsetruetrue00falsefalsefalsetruefalseOtherxbrli:pureItemTypepureReturn Before Taxes.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 -Subsection b falsefalsePast 5 YearsfalseUSDfalsefalse$3falseColumnprimaryElement*5false0rr_AverageAnnualReturnSinceInceptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.05890.0589falsefalsefalsetruefalse2truetruetrue0.05800.0580falsefalsefalsetruefalse3truetruetrue0.05190.0519falsefalsefalsetruefalse4truetruetrue0.05640.0564falsefalsefalsetruefalse5truetruetrue0.05680.0568falsefalsefalsetruefalse6truetruetrue-0.0490-0.0490falsefalsefalsetruefalse7truetruetrue0.04840.0484falsefalsefalsetruefalse8truetruetrue-0.0116-0.0116falsefalsefalsetruefalse9truetruetrue-0.0119-0.0119falsefalsefalsetruefalse10truetruetrue-0.0088-0.0088falsefalsefalsetruefalse11truetruetrue-0.0147-0.0147falsefalsefalsetruefalse12truetruetrue-0.0097-0.0097falsefalsefalsetruefalse13truetruetrue0.15130.1513falsefalsefalsetruefalse14truetruetrue-0.0002-0.0002falsefalsefalsetruefalseOtherxbrli:pureItemTypepureReturn Before Taxes.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 -Subsection b falsefalseLifetimefalseUSDfalsefalse$4falseColumnprimaryElement*6false0rr_AverageAnnualReturnInceptionDaterrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse002004-12-22falsefalsetruetruefalse2falsetruefalse00falsefalsetruetruefalse3falsetruefalse00falsefalsetruetruefalse4falsetruefalse002004-12-22falsefalsetruetruefalse5falsetruefalse002004-12-22falsefalsetruetruefalse6falsetruefalse002007-07-25falsefalsetruetruefalse7falsetruefalse00falsefalsetruetruefalse8falsetruefalse002006-12-29falsefalsetruetruefalse9falsetruefalse00falsefalsetruetruefalse10falsetruefalse00falsefalsetruetruefalse11falsetruefalse002006-12-29falsefalsetruetruefalse12falsetruefalse002006-12-29falsefalsetruetruefalse13falsetruefalse002009-12-31falsefalsetruetruefalse14falsetruefalse00falsefalsetruetruefalseOtherxbrli:dateItemTypedateReturn Before Taxes.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph instructions -Clause 4 -Subsection b falsefalseInception DatefalseUSDfalsefalse$1falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMembertruefalseAll Classesrr_ProspectusShareClassAxisrr_ShareClassDomainrr_ProspectusShareClassAxisexplicitMemberfalsefalseMSCI ACWI (All Country World Index) - reflects no deduction for fees, expenses or taxesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldidgif_MsciAcwiIndexMemberrr_PerformanceMeasureAxisexplicitMemberDavis Global FundAll ClassesMSCI ACWI (All Country World Index) - reflects no deduction for fees, expenses or taxesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.12670.1267falsefalsefalsetruefalse2truetruetrue0.03440.0344falsefalsefalsetruefalse3truetruetrue0.04840.0484falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsefalsefalseOthernanafalsefalseMSCI ACWI (All Country World Index) - reflects no deduction for fees, expenses or taxes2falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009524Memberrr_ProspectusShareClassAxisexplicitMembertruefalsereturn before taxesrr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberDavis Global FundDavis Global Fund - Class Areturn before taxesUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.09640.0964falsefalsefalsetruefalse2truetruetrue0.03930.0393falsefalsefalsetruefalse3truetruetrue0.05890.0589falsefalsefalsetruefalse4falsetruefalse002004-12-222004-12-22falsefalsetruetruefalseOthernanafalsefalseDavis Global Fund - Class A3falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009524Memberrr_ProspectusShareClassAxisexplicitMemberfalsefalsereturn after taxes on distributionsrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsMemberrr_PerformanceMeasureAxisexplicitMemberDavis Global FundDavis Global Fund - Class Areturn after taxes on distributionsStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.09370.0937falsefalsefalsetruefalse2truetruetrue0.03840.0384falsefalsefalsetruefalse3truetruetrue0.05800.0580falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsefalsefalseOthernanafalsefalseDavis Global Fund - Class A return after taxes on distributions4falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009524Memberrr_ProspectusShareClassAxisexplicitMemberfalsefalsereturn after taxes on distributions and sale of fund sharesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsAndSalesMemberrr_PerformanceMeasureAxisexplicitMemberDavis Global FundDavis Global Fund - Class Areturn after taxes on distributions and sale of fund sharesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.06630.0663falsefalsefalsetruefalse2truetruetrue0.03460.0346falsefalsefalsetruefalse3truetruetrue0.05190.0519falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsefalsefalseOthernanafalsefalseDavis Global Fund - Class A return after taxes on distributions and sale of fund shares5falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Brr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009525Memberrr_ProspectusShareClassAxisexplicitMembertruefalsereturn before taxesrr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberDavis Global FundDavis Global Fund - Class Breturn before taxesUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.09680.0968falsefalsefalsetruefalse2truetruetrue0.03480.0348falsefalsefalsetruefalse3truetruetrue0.05640.0564falsefalsefalsetruefalse4falsetruefalse002004-12-222004-12-22falsefalsetruetruefalseOthernanafalsefalseDavis Global Fund - Class B6falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Crr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009526Memberrr_ProspectusShareClassAxisexplicitMembertruefalsereturn before taxesrr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberDavis Global FundDavis Global Fund - Class Creturn before taxesUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.13030.1303falsefalsefalsetruefalse2truetruetrue0.03890.0389falsefalsefalsetruefalse3truetruetrue0.05680.0568falsefalsefalsetruefalse4falsetruefalse002004-12-222004-12-22falsefalsetruetruefalseOthernanafalsefalseDavis Global Fund - Class C7falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis Global Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis Global Fund - Class Yrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039882Memberrr_ProspectusShareClassAxisexplicitMembertruefalsereturn before taxesrr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberDavis Global FundDavis Global Fund - Class Yreturn before taxesUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.15370.1537falsefalsefalsetruefalse2falsefalsefalse00falsefalsefalsefalsefalse3truetruetrue-0.0490-0.0490falsefalsefalsetruefalse4falsetruefalse002007-07-252007-07-25falsefalsetruetruefalseOthernanafalsefalseDavis Global Fund - Class Y47Average Annual Total Returns Davis Global FundUnKnownUnKnownUnKnownUnKnownfalsetrueColumnprimaryElement*RowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000003441MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to PerformanceTableData.No authoritative reference available.falsefalsePerformance Table27false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://xbrl.sec.gov/rr/role/riskreturn1falsefalsefalse00Davis Global Fund | Davis Global Fund - Class ADavis Global Fund | Davis Global Fund - Class Afalsefalsefalsefalsefalse2falsefalseUSDtruefalse{dei_LegalEntityAxis} : Davis Global Fund {rr_ProspectusShareClassAxis} : Davis Global Fund - Class A 3/1/2011 - 3/1/2011 USD ($) $c_S000003441_C000009524http://www.sec.gov/CIK0000071701duration2011-03-01T00:00:002011-03-01T00:00:00falsefalsedgif_S000003441Memberdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000003441Memberdei_LegalEntityAxisexplicitMemberfalsefalsedgif_C000009524Memberrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000009524Memberrr_ProspectusShareClassAxisexplicitMemberRatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalseDavis Global Fund | Davis Global Fund - Class A29false0rr_BarChartClosingTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 Highest/Lowest quarterly results during this time period were: HIGHEST: 32.48% for the quarter ended June 30, 2009 LOWEST: (22.95%) for the quarter ended December 31, 2008 falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringIf 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph ii -Subsection b falsefalseBar Chart, Closing30false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://xbrl.sec.gov/rr/role/riskreturn1falsefalsefalse00Davis International FundDavis International Fundfalsefalsefalsefalsefalse3falsefalseUSDtruefalse{dei_LegalEntityAxis} : Davis International Fund 3/1/2011 - 3/1/2011 USD ($) $c_S000014591http://www.sec.gov/CIK0000071701duration2011-03-01T00:00:002011-03-01T00:00:00falsefalsedgif_S000014591Memberdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberRatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalseDavis International Fund32false0rr_RiskReturnHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 <big> Fund Summary: Davis International Fund </big> </bgt;falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/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 indicatedReference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 falsefalseRisk/Return33false0rr_ObjectiveHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Investment ObjectivefalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringInvestment 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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 -Subsection a falsefalseINVESTMENT OBJECTIVE:34false0rr_ObjectivePrimaryTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Davis International Fund's investment objective is long-term growth of capital.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringInvestment 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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 2 -Subsection a falsefalseINVESTMENT OBJECTIVE35false0rr_ExpenseHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Fees and Expenses of Davis International FundfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph d -Subsection instructions falsefalseFees and expenses of the fund:36false0rr_ExpenseNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00This table describes the fees and expenses that you may pay if you buy and hold shares of Davis International Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Davis Funds. More information about these and other discounts is available from your financial professional and in the "How to Choose a Share Class, Class A shares" section of the Fund's statutory prospectus on page 32 and in the "Selecting the Appropriate Class of Shares" section of the Fund's statement of additional information on page 50.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThis 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. Include the narrative explanations in the order indicated. A Fund may modify the narrative explanations if the explanation contains comparable information to that shown.The narrative explanation regarding sales charge discounts is only required by a Fund that offers such discounts and should specify the minimum level of investment required to qualify for a discount. Modify the narrative explanation to state that Fund shares are sold on a national securities exchange at the end of the time periods indicated, and that brokerage commissions for buying and selling Fund shares through a broker are not reflected.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph b -Subsection instructions falsefalseFees and expenses of the fund, narrative37false0rr_ShareholderFeesCaptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Shareholder Fees (fees paid directly from your investment)falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringShareholder Fees (fees paid directly from your investment).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subsection table falsefalseShareholder fees, caption38false0rr_ShareholderFeesTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00~ http://xbrl.sec.gov/rr/role/ShareholderFeesData column dei_LegalEntityAxis compact dgif_S000014591Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsefalse~ http://xbrl.sec.gov/rr/role/ShareholderFeesData column dei_LegalEntityAxis compact dgif_S000014591Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsehttp://xbrl.sec.gov/rr/role/ShareholderFeesDatafalsefalse020010 - Schedule - Shareholder Feestruefalsefalse1falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039879Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class AUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$2falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Brr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039880Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class BUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$3falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Crr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039881Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class CUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$4falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Yrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000082064Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class YUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$1falseRowprimaryElement*3false0rr_MaximumCumulativeSalesChargeOverOfferingPricerrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.04750.0475falsefalsefalsetruefalse2truetruetrue0.00000.0000falsefalsefalsetruefalse3truetruetrue0.00000.0000falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalse5truetruetrue0.04750.0475falsefalsefalsetruefalse6truetruetrue0.00000.0000falsefalsefalsetruefalse7truetruetrue0.00000.0000falsefalsefalsetruefalse8truetruetrue0.00000.0000falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureMaximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price). If a sales charge (load) is imposed on shares purchased with reinvested capital gains distributions or returns of capital, include the bracketed words in the third caption.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 1 -Subsection table falsefalseMaximum sales charge (load) imposed on purchases (as a percentage of offering price)0rr_MaximumCumulativeSalesChargeOverOfferingPricetruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.04750.0475falsefalsefalsetruefalse2truetruetrue0.00000.0000falsefalsefalsetruefalse3truetruetrue0.00000.0000falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalseMaximum sales charge (load) imposed on purchases (as a percentage of offering price)2falseRowprimaryElement*4false0rr_MaximumDeferredSalesChargeOverOtherrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00500.0050falsefalsefalsetruefalse2truetruetrue0.04000.0400falsefalsefalsetruefalse3truetruetrue0.01000.0100falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalse5truetruetrue0.00500.0050falsefalsefalsetruefalse6truetruetrue0.04000.0400falsefalsefalsetruefalse7truetruetrue0.01000.0100falsefalsefalsetruefalse8truetruetrue0.00000.0000falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureMaximum Deferred Sales Charge (Load) (as a percentage of ____) "Maximum Deferred Sales Charge (Load)" includes the maximum total deferred sales charge (load) payable upon redemption, in installments, or both, expressed as a percentage of the amount or amounts stated in response to Item 7(a), except that, for a sales charge (load) based on net asset value at the time of purchase, show the sales charge (load) as a percentage of the offering price at the time of purchase. A Fund may include in a footnote to the table, if applicable, a tabular presentation showing the amount of deferred sales charges (loads) over time or a narrative explanation of the sales charges (loads) (e.g., __% in the first year after purchase, declining to __% in the __ year and eliminated thereafter). If more than one type of sales charge (load) is imposed (e.g., a deferred sales charge (load) and a front-end sales charge (load)), the first caption in the table should read "Maximum Sales Charge (Load)" and show the maximum cumulative percentage. Show the percentage amounts and the terms of each sales charge (load) comprising that figure on separate lines below.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 2 -Subparagraph a -Clause i -Subsection instructions falsefalseMaximum deferred sales charge (load) imposed on redemptons (as a percentage of the lesser of the net asset value of the shares redeemed or the total cost of such shares. Only applies to Class A shares if you buy shares valued at $1 million or more without a sales charge and sell the shares within one year of purchase.)0rr_MaximumDeferredSalesChargeOverOthertruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00500.0050falsefalsefalsetruefalse2truetruetrue0.04000.0400falsefalsefalsetruefalse3truetruetrue0.01000.0100falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalseMaximum deferred sales charge (load) imposed on redemptons (as a percentage of the lesser of the net asset value of the shares redeemed or the total cost of such shares. Only applies to Class A shares if you buy shares valued at $1 million or more without a sales charge and sell the shares within one year of purchase.)3falseRowprimaryElement*5false0rr_RedemptionFeeOverRedemptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0200-0.0200falsefalsefalsetruefalse2truetruetrue-0.0200-0.0200falsefalsefalsetruefalse3truetruetrue-0.0200-0.0200falsefalsefalsetruefalse4truetruetrue-0.0200-0.0200falsefalsefalsetruefalse5truetruetrue-0.0200-0.0200falsefalsefalsetruefalse6truetruetrue-0.0200-0.0200falsefalsefalsetruefalse7truetruetrue-0.0200-0.0200falsefalsefalsetruefalse8truetruetrue-0.0200-0.0200falsefalsefalsetruefalseOtherrr:NonPositivePure4Typepure"Redemption Fee" (as a percentage of amount redeemed, if applicable) If the Fund is an Exchange-Traded Fund and issues or redeems shares in creation units of not less than 25,000 shares each, exclude any fees charged for the purchase and redemption of the Fund's creation units. "Redemption Fee" includes a fee charged for any redemption of the Fund's shares, but does not include a deferred sales charge (load) imposed upon redemption.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 2 -Subparagraph b -Subsection instructions falsefalseRedemption fee (as a percentage of total redemption proceeds on shares redeemed or exchanged within 30 days)0rr_RedemptionFeeOverRedemptiontruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0200-0.0200falsefalsefalsetruefalse2truetruetrue-0.0200-0.0200falsefalsefalsetruefalse3truetruetrue-0.0200-0.0200falsefalsefalsetruefalse4truetruetrue-0.0200-0.0200falsefalsefalsetruefalseOthernanafalsefalseRedemption fee (as a percentage of total redemption proceeds on shares redeemed or exchanged within 30 days)43Shareholder Fees Davis International FundUnKnownUnKnownUnKnownUnKnownfalsetrueColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to ShareholderFeesData.No authoritative reference available.falsefalseShareholder fees, table39false0rr_OperatingExpensesCaptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringAnnual Fund Operating Expenses (ongoing expenses that you pay each year as a percentage of the value of your investment)Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 7 -Subsection table falsefalseAnnual fund operating expenses, heading40false0rr_AnnualFundOperatingExpensesTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00~ http://xbrl.sec.gov/rr/role/OperatingExpensesData column dei_LegalEntityAxis compact dgif_S000014591Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsefalse~ http://xbrl.sec.gov/rr/role/OperatingExpensesData column dei_LegalEntityAxis compact dgif_S000014591Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsehttp://xbrl.sec.gov/rr/role/OperatingExpensesDatafalsefalse020020 - Schedule - Annual Fund Operating Expensestruefalsefalse1falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039879Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class AUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$2falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Brr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039880Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class BUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$3falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Crr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039881Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class CUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$4falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Yrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000082064Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class YUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$1falseRowprimaryElement*3false0rr_ManagementFeesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00550.0055falsefalsefalsetruefalse2truetruetrue0.00550.0055falsefalsefalsetruefalse3truetruetrue0.00550.0055falsefalsefalsetruefalse4truetruetrue0.00550.0055falsefalsefalsetruefalse5truetruetrue0.00550.0055falsefalsefalsetruefalse6truetruetrue0.00550.0055falsefalsefalsetruefalse7truetruetrue0.00550.0055falsefalsefalsetruefalse8truetruetrue0.00550.0055falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureManagement 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."Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 3 -Subparagraph a -Subsection instructions falsefalseManagement Fees0rr_ManagementFeesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00550.0055falsefalsefalsetruefalse2truetruetrue0.00550.0055falsefalsefalsetruefalse3truetruetrue0.00550.0055falsefalsefalsetruefalse4truetruetrue0.00550.0055falsefalsefalsetruefalseOthernanafalsefalseManagement Fees2falseRowprimaryElement*4false0rr_DistributionAndService12b1FeesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00250.0025falsefalsefalsetruefalse2truetruetrue0.01000.0100falsefalsefalsetruefalse3truetruetrue0.01000.0100falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalse5truetruetrue0.00250.0025falsefalsefalsetruefalse6truetruetrue0.01000.0100falsefalsefalsetruefalse7truetruetrue0.01000.0100falsefalsefalsetruefalse8truetruetrue0.00000.0000falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureDistribution [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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 9 -Subsection table falsefalseDistribution and/or Service (12b-1) Fees0rr_DistributionAndService12b1FeesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00250.0025falsefalsefalsetruefalse2truetruetrue0.01000.0100falsefalsefalsetruefalse3truetruetrue0.01000.0100falsefalsefalsetruefalse4truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalseDistribution and/or Service (12b-1) Fees3falseRowprimaryElement*5false0rr_OtherExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00380.0038falsefalsefalsetruefalse2truetruetrue0.00720.0072falsefalsefalsetruefalse3truetruetrue0.00500.0050falsefalsefalsetruefalse4truetruetrue0.00280.0028falsefalsefalsetruefalse5truetruetrue0.01260.0126falsefalsefalsetruefalse6truetruetrue0.06500.0650falsefalsefalsetruefalse7truetruetrue0.08360.0836falsefalsefalsetruefalse8truetruetrue0.02370.0237falsefalsefalsetruefalseOtherrr:NonNegativePure4Typepure"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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 3 -Subparagraph c -Clause i -Subsection instructions falsefalseOther Expenses0rr_OtherExpensesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01260.0126falsefalsefalsetruefalse2truetruetrue0.06500.0650falsefalsefalsetruefalse3truetruetrue0.08360.0836falsefalsefalsetruefalse4truetruetrue0.02370.0237falsefalsefalsetruefalseOthernanafalsefalseOther Expenses4falseRowprimaryElement*6false0rr_ExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01180.0118falsefalsefalsetruefalse2truetruetrue0.02270.0227falsefalsefalsetruefalse3truetruetrue0.02050.0205falsefalsefalsetruefalse4truetruetrue0.00830.0083falsefalsefalsetruefalse5truetruetrue0.02060.0206falsefalsefalsetruefalse6truetruetrue0.08050.0805falsefalsefalsetruefalse7truetruetrue0.09910.0991falsefalsefalsetruefalse8truetruetrue0.02920.0292falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureTotal 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."Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 3 -Subparagraph d -Subsection instructions falsefalseTotal Annual Operating Expenses0rr_ExpensesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.02060.0206falsefalsefalsetruefalse2truetruetrue0.08050.0805falsefalsefalsetruefalse3truetruetrue0.09910.0991falsefalsefalsetruefalse4truetruetrue0.02920.0292falsefalsefalsetruefalseOthernanafalsefalseTotal Annual Operating Expenses5falseRowprimaryElement*7false0rr_FeeWaiverOrReimbursementOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00000.0000[1]falsefalsefalsetruefalse2truetruetrue0.00000.0000[1]falsefalsefalsetruefalse3truetruetrue0.00000.0000[1]falsefalsefalsetruefalse4truetruetrue0.00000.0000[1]falsefalsefalsetruefalse5truetruetrue-0.0076-0.0076[1]falsefalsefalsetruefalse6truetruetrue-0.0575-0.0575[1]falsefalsefalsetruefalse7truetruetrue-0.0761-0.0761[1]falsefalsefalsetruefalse8truetruetrue-0.0187-0.0187[1]falsefalsefalsetruefalseOtherrr:NonPositivePure4TypepureTotal Annual Fund Operating Expenses. If there were expense reimbursement or fee waiver arrangements that reduced any Fund operating expenses and will continue to reduce them for no less than one year from the effective date of the Fund's registration statement, a Fund may add two captions to the table one caption showing the amount of the expense reimbursement or fee waiver, and a second caption showing the Fund's net expenses after subtracting the fee reimbursement or expense waiver from the total fund operating expenses. The Fund should place these additional captions directly below the "Total Annual Fund Operating Expenses" caption of the table and should use appropriate descriptive captions, such as "Fee Waiver [and/or Expense Reimbursement]" and "Total Annual Fund Operating Expenses After Fee Waiver [and/or Expense Reimbursement]," respectively. If the Fund provides this disclosure, also disclose the period for which the expense reimbursement or fee waiver arrangement is expected to continue, and briefly describe who can terminate the arrangement and under what circumstances.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 11 -Subsection table falsefalseLess Fee Waiver or Expense Reimbursement0rr_FeeWaiverOrReimbursementOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse[1]1truetruetrue-0.0076-0.0076falsefalsefalsetruefalse2truetruetrue-0.0575-0.0575falsefalsefalsetruefalse3truetruetrue-0.0761-0.0761falsefalsefalsetruefalse4truetruetrue-0.0187-0.0187falsefalsefalsetruefalseOthernanafalsefalseLess Fee Waiver or Expense Reimbursement6falseRowprimaryElement*8false0rr_NetExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01180.0118falsefalsefalsetruefalse2truetruetrue0.02270.0227falsefalsefalsetruefalse3truetruetrue0.02050.0205falsefalsefalsetruefalse4truetruetrue0.00830.0083falsefalsefalsetruefalse5truetruetrue0.01300.0130falsefalsefalsetruefalse6truetruetrue0.02300.0230falsefalsefalsetruefalse7truetruetrue0.02300.0230falsefalsefalsetruefalse8truetruetrue0.01050.0105falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureTotal Annual Fund Operating Expenses.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 11 -Subsection table falsefalseNet Expenses0rr_NetExpensesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.01300.0130falsefalsefalsetruefalse2truetruetrue0.02300.0230falsefalsefalsetruefalse3truetruetrue0.02300.0230falsefalsefalsetruefalse4truetruetrue0.01050.0105falsefalsefalsetruefalseOthernanafalsefalseNet Expenses1 The Adviser is contractually committed to waive fees and/or reimburse the Fund's expenses to the extent necessary to cap total annual Fund operating expenses (Class A shares, 1.30%; Class B shares, 2.30%; Class C shares, 2.30%; Class Y shares, 1.05%) until March 1, 2012. After that date, there is no assurance that the Adviser will continue to cap expenses. The expense cap cannot be terminated prior to March 1, 2012, without the consent of the Board of Directors. 46Annual Fund Operating Expenses Davis International FundUnKnownUnKnownUnKnownUnKnownfalsetrueColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to OperatingExpensesData.No authoritative reference available.falsefalseAnnual fund operating expenses, table41false0rr_ExpenseExampleHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00ExamplefalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringHeading for Expense Example.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 4 -Subsection instructions falsefalseExample, heading42false0rr_ExpenseExampleNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. This Example assumes that you invest $10,000 in Davis International Fund for the time periods indicated and then redeem all of your shares at the end of those periods. This 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:falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThe Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 1 -Subsection example falsefalseExpense Example, Narrative43false0rr_ExpenseExampleWithRedemptionTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00~ http://xbrl.sec.gov/rr/role/ExpenseExample column dei_LegalEntityAxis compact dgif_S000014591Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsefalse~ http://xbrl.sec.gov/rr/role/ExpenseExample column dei_LegalEntityAxis compact dgif_S000014591Member column rr_ProspectusShareClassAxis compact * row primary compact * ~truehttp://xbrl.sec.gov/rr/role/ExpenseExamplefalsefalse020030 - Schedule - Expense Example {Transposed}truefalsefalse1falseColumnprimaryElement*3false0rr_ExpenseExampleYear01rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue590590falsefalsefalsetruefalse2truefalsetrue630630falsefalsefalsetruefalse3truefalsetrue308308falsefalsefalsetruefalse4truefalsetrue8585falsefalsefalsetruefalse5truefalsetrue674674falsefalsefalsetruefalse6truefalsetrue11931193falsefalsefalsetruefalse7truefalsetrue10671067falsefalsefalsetruefalse8truefalsetrue295295falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 4 -Subsection instructions falsefalse1 YEARfalseUSDfalsefalse$2falseColumnprimaryElement*4false0rr_ExpenseExampleYear03rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue832832falsefalsefalsetruefalse2truefalsetrue10091009falsefalsefalsetruefalse3truefalsetrue643643falsefalsefalsetruefalse4truefalsetrue265265falsefalsefalsetruefalse5truefalsetrue10901090falsefalsefalsetruefalse6truefalsetrue26062606falsefalsefalsetruefalse7truefalsetrue27602760falsefalsefalsetruefalse8truefalsetrue904904falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 2 -Subsection example falsefalse3 YEARSfalseUSDfalsefalse$3falseColumnprimaryElement*5false0rr_ExpenseExampleYear05rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue10931093falsefalsefalsetruefalse2truefalsetrue14151415falsefalsefalsetruefalse3truefalsetrue11031103falsefalsefalsetruefalse4truefalsetrue460460falsefalsefalsetruefalse5truefalsetrue15311531falsefalsefalsetruefalse6truefalsetrue39293929falsefalsefalsetruefalse7truefalsetrue43814381falsefalsefalsetruefalse8truefalsetrue15381538falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 2 -Subsection example falsefalse5 YEARSfalseUSDfalsefalse$4falseColumnprimaryElement*6false0rr_ExpenseExampleYear10rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue18391839falsefalsefalsetruefalse2truefalsetrue22012201falsefalsefalsetruefalse3truefalsetrue23792379falsefalsefalsetruefalse4truefalsetrue10251025falsefalsefalsetruefalse5truefalsetrue27512751falsefalsefalsetruefalse6truefalsetrue55865586falsefalsefalsetruefalse7truefalsetrue77887788falsefalsefalsetruefalse8truefalsetrue32423242falsefalsefalsetruefalseMonetaryrr:NonNegativeMonetaryTypemonetaryThe 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 2 -Subsection example falsefalse10 YEARSfalseUSDfalsefalse$1falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039879Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class AUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue674674falsefalsefalsetruefalse2truefalsetrue10901090falsefalsefalsetruefalse3truefalsetrue15311531falsefalsefalsetruefalse4truefalsetrue27512751falsefalsefalsetruefalseOthernanafalsefalseDavis International Fund - Class A2falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Brr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039880Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class BUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue11931193falsefalsefalsetruefalse2truefalsetrue26062606falsefalsefalsetruefalse3truefalsetrue39293929falsefalsefalsetruefalse4truefalsetrue55865586falsefalsefalsetruefalseOthernanafalsefalseDavis International Fund - Class B3falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Crr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039881Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class CUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue10671067falsefalsefalsetruefalse2truefalsetrue27602760falsefalsefalsetruefalse3truefalsetrue43814381falsefalsefalsetruefalse4truefalsetrue77887788falsefalsefalsetruefalseOthernanafalsefalseDavis International Fund - Class C4falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Yrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000082064Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class YUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsetrue295295falsefalsefalsetruefalse2truefalsetrue904904falsefalsefalsetruefalse3truefalsetrue15381538falsefalsefalsetruefalse4truefalsetrue32423242falsefalsefalsetruefalseOthernanafalsefalseDavis International Fund - Class Y44Expense Example Davis International Fund (USD $)UnKnownUnKnownUnKnownUnKnownfalsetrueColumnprimaryElement*RowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*RowunitUnit*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to ExpenseExample.No authoritative reference available.falsefalseExpense Example, with Redemption, table44false0rr_PortfolioTurnoverHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Portfolio TurnoverfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringDisclose 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 5 -Subsection instructions falsefalsePortfolio turnover, heading45false0rr_PortfolioTurnoverTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Davis International 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 20% of the average value of its portfolio.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDisclose 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 3 -Subsection example falsefalsePortfolio turnover, narrative46false0rr_StrategyHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Principal Investment StrategiesfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection a falsefalseStrategy, Heading47false0rr_StrategyNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 Davis Selected Advisers, L.P. ("Davis Advisors" or the "Adviser"), the Fund's investment adviser, uses the Davis Investment Discipline to invest Davis International Fund's portfolio primarily in equity securities (typically common stocks, but may also include preferred stocks, American Depository Receipts and Global Depository Receipts) issued by foreign companies, including countries with developed or emerging markets. The Fund may invest in large, medium, or small companies without regard to market capitalization. Under normal market conditions, the Fund will invest significantly (at least 40% of its total assets) in issuers: (i) organized or located outside of the U.S.; (ii) whose primary trading market is located outside the U.S.; or (iii) doing a substantial amount of business outside the U.S., which the Fund considers to be a company that derives at least 50% of its revenue from business outside the U.S. or has at least 50% of its assets outside the U.S. Typically, the Fund makes investments in a number of different countries. 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 equity securities which can be purchased at attractive valuations relative to their intrinsic value. Davis Advisors' goal is to invest in companies for the long term. Davis Advisors considers selling a company's equity securities if the securities' market price exceeds Davis Advisors' estimates of intrinsic value, or if the ratio of the risks and rewards of continuing to own the company's equity securities is no longer attractive. falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Subsection a falsefalseStrategy, Narrative48false0rr_RiskHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Principal Risks of Investing in Davis International Fund falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNarrative Risk Disclosure.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 1 -Subsection b falsefalseRisk, Heading49false0rr_RiskNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 You may lose money by investing in Davis International Fund. Investors in Davis International 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: <ul> <li> 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. </li> <li> 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. </li> <li> 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 are generally subordinate to an issuers' other securities, including convertible and preferred securities. </li> <li> Foreign Country risk. Foreign companies 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. </li> <li> Foreign Currency risk. Securities issued by foreign companies are frequently denominated in foreign currencies. 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. </li> <li> Emerging Market risk. The Fund invests in emerging or developing markets. Securities of issuers in emerging and developing markets may offer special investment opportunities, but present risks not found in more mature markets. </li> <li> Trading Markets and Depositary Receipts. Foreign securities may trade in the form of depositary receipts, including American, European and Global Depositary Receipts. Although depositary receipts have risks similar to the securities that they represent, they may also involve higher expenses and may trade at a discount (or premium) to the underlying security. In addition, depositary receipts may not pass through voting and other shareholder rights, and may be less liquid than the underlying securities listed on an exchange. </li> <li> Under $10 Billion Market Capitalization risk. Small- and mid-size 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. </li> <li> Headline risk. The Fund may make such investments when a company becomes the center of controversy after receiving adverse media attention. While Davis Advisors researches companies subject to such contingencies, they cannot be correct every time, and the company's stock may never recover. </li> <li> 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 which a shareholder may earn by investing in a fund. A low return environment, or a bear market, increases the risk that a shareholder may lose money. </li> </ul> 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. falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringNarrative Risk Disclosure. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 1 -Subparagraph i -Clause instruction -Subsection b falsefalseRisk, Narrative50false0rr_BarChartAndPerformanceTableHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Performance ResultsfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Bar Chart and Table.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subsection b falsefalseBar Chart and Performance Table, Heading51false0rr_BarChartNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 The bar chart below provides some indication of the risks of investing in Davis International 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 those of the MSCI ACWI (All Country World Index) ex USA, 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.davisfunds.com or by calling 1-800-279-0279. After-tax returns are shown only for Class A shares; after-tax returns for other share classes will vary. 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 a tax-deferred arrangement, such as a 401(k) plan or individual retirement accounts. During the period from inception (December 29, 2006) through December 30, 2009, only the directors, officers and employees of Davis International Fund or its investment adviser and sub-adviser (and the investment adviser itself and affiliated companies) were eligible to purchase Fund shares. Since inception, the Fund's investment strategies and operations were substantially the same. falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringProvide 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph i -Subsection b falsefalseBar Chart, Narrative52false0rr_BarChartHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Calendar Year Total Returns for Class A SharesfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Bar Chart and Table.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subsection b falsefalseBar Chart, Heading53false0rr_BarChartTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00~ http://xbrl.sec.gov/rr/role/BarChartData column dei_LegalEntityAxis compact dgif_S000014591Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsefalseBarChart2.jpg~ http://xbrl.sec.gov/rr/role/BarChartData column dei_LegalEntityAxis compact dgif_S000014591Member column rr_ProspectusShareClassAxis compact * row primary compact * ~falsehttp://xbrl.sec.gov/rr/role/BarChartDatafalsefalse020050 - Schedule - Annual Total Returnstruefalsefalse1falseColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039879Memberrr_ProspectusShareClassAxisexplicitMemberDavis International FundDavis International Fund - Class AUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170falseUSDfalsefalse$1falseRowprimaryElement*5false0rr_AnnualReturn2007rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.17140.1714falsefalsefalsetruefalse2truetruefalse0.22680.2268falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf 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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit a -Subsection b falsefalse20070rr_AnnualReturn2007truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.22680.2268falsefalsefalsetruefalseOthernanafalsefalse20072falseRowprimaryElement*6false0rr_AnnualReturn2008rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.4992-0.4992falsefalsefalsetruefalse2truetruefalse-0.4861-0.4861falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf 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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph ii -Subsection b falsefalse20080rr_AnnualReturn2008truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.4861-0.4861falsefalsefalsetruefalseOthernanafalsefalse20083falseRowprimaryElement*7false0rr_AnnualReturn2009rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.45210.4521falsefalsefalsetruefalse2truetruefalse0.38320.3832falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf 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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit a -Subsection b falsefalse20090rr_AnnualReturn2009truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.38320.3832falsefalsefalsetruefalseOthernanafalsefalse20094falseRowprimaryElement*8false0rr_AnnualReturn2010rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.15130.1513falsefalsefalsetruefalse2truetruefalse0.14870.1487falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf 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).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph ii -Subsection b falsefalse20100rr_AnnualReturn2010truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.14870.1487falsefalsefalsetruefalseOthernanafalsefalse201014Annual Total Returns UnKnownUnKnownUnKnownUnKnownfalsetrueColumnperiodPeriod*Columndei_LegalEntityAxisAxisdgif_S000014591MemberColumnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to BarChartData.No authoritative reference available.falsefalseBar Chart54false0rr_PerformanceTableHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Davis International Fund Average Annual Total Returns for the periods ended December 31, 2010falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringThis item represents Average Anuual 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph instructions -Clause 3 -Exhibit c -Subsection b falsefalsePerformance Table:55false0rr_PerformanceTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00~ http://xbrl.sec.gov/rr/role/PerformanceTableData column dei_LegalEntityAxis compact dgif_S000014591Member column rr_ProspectusShareClassAxis compact * column rr_PerformanceMeasureAxis compact * row primary compact * ~falsefalse~ http://xbrl.sec.gov/rr/role/PerformanceTableData column dei_LegalEntityAxis compact dgif_S000014591Member column rr_ProspectusShareClassAxis compact * column rr_PerformanceMeasureAxis compact * row primary compact * ~truehttp://xbrl.sec.gov/rr/role/PerformanceTableDatafalsefalse020060 - Schedule - Average Annual Total Returns {Transposed}truefalsefalse1falseColumnprimaryElement*3false0rr_AverageAnnualReturnYear01rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.09640.0964falsefalsefalsetruefalse2truetruetrue0.09370.0937falsefalsefalsetruefalse3truetruetrue0.06630.0663falsefalsefalsetruefalse4truetruetrue0.09680.0968falsefalsefalsetruefalse5truetruetrue0.13030.1303falsefalsefalsetruefalse6truetruetrue0.15370.1537falsefalsefalsetruefalse7truetruetrue0.12670.1267falsefalsefalsetruefalse8truetruetrue0.09410.0941falsefalsefalsetruefalse9truetruetrue0.09380.0938falsefalsefalsetruefalse10truetruetrue0.06240.0624falsefalsefalsetruefalse11truetruetrue0.09720.0972falsefalsefalsetruefalse12truetruetrue0.12720.1272falsefalsefalsetruefalse13truetruetrue0.15130.1513falsefalsefalsetruefalse14truetruetrue0.11150.1115falsefalsefalsetruefalseOtherxbrli:pureItemTypepureReturn Before Taxes.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 -Subsection b falsefalsePast 1 YearfalseUSDfalsefalse$2falseColumnprimaryElement*5false0rr_AverageAnnualReturnSinceInceptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.05890.0589falsefalsefalsetruefalse2truetruetrue0.05800.0580falsefalsefalsetruefalse3truetruetrue0.05190.0519falsefalsefalsetruefalse4truetruetrue0.05640.0564falsefalsefalsetruefalse5truetruetrue0.05680.0568falsefalsefalsetruefalse6truetruetrue-0.0490-0.0490falsefalsefalsetruefalse7truetruetrue0.04840.0484falsefalsefalsetruefalse8truetruetrue-0.0116-0.0116falsefalsefalsetruefalse9truetruetrue-0.0119-0.0119falsefalsefalsetruefalse10truetruetrue-0.0088-0.0088falsefalsefalsetruefalse11truetruetrue-0.0147-0.0147falsefalsefalsetruefalse12truetruetrue-0.0097-0.0097falsefalsefalsetruefalse13truetruetrue0.15130.1513falsefalsefalsetruefalse14truetruetrue-0.0002-0.0002falsefalsefalsetruefalseOtherxbrli:pureItemTypepureReturn Before Taxes.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 2 -Subsection b falsefalseLifetimefalseUSDfalsefalse$3falseColumnprimaryElement*6false0rr_AverageAnnualReturnInceptionDaterrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsetruefalse002004-12-22falsefalsetruetruefalse2falsetruefalse00falsefalsetruetruefalse3falsetruefalse00falsefalsetruetruefalse4falsetruefalse002004-12-22falsefalsetruetruefalse5falsetruefalse002004-12-22falsefalsetruetruefalse6falsetruefalse002007-07-25falsefalsetruetruefalse7falsetruefalse00falsefalsetruetruefalse8falsetruefalse002006-12-29falsefalsetruetruefalse9falsetruefalse00falsefalsetruetruefalse10falsetruefalse00falsefalsetruetruefalse11falsetruefalse002006-12-29falsefalsetruetruefalse12falsetruefalse002006-12-29falsefalsetruetruefalse13falsetruefalse002009-12-31falsefalsetruetruefalse14falsetruefalse00falsefalsetruetruefalseOtherxbrli:dateItemTypedateReturn Before Taxes.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph instructions -Clause 4 -Subsection b falsefalseInception DatefalseUSDfalsefalse$1falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMembertruefalseAll Classesrr_ProspectusShareClassAxisrr_ShareClassDomainrr_ProspectusShareClassAxisexplicitMemberfalsefalseMSCI ACWI (All Country World Index) ex USA - reflects no deduction for fees, expenses or taxesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldidgif_MsciAcwiExUsaIndexMemberrr_PerformanceMeasureAxisexplicitMemberDavis International FundAll ClassesMSCI ACWI (All Country World Index) ex USA - reflects no deduction for fees, expenses or taxesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.11150.1115falsefalsefalsetruefalse2truetruetrue-0.0002-0.0002falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsefalsefalseOthernanafalsefalseMSCI ACWI (All Country World Index) ex USA - reflects no deduction for fees, expenses or taxes2falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039879Memberrr_ProspectusShareClassAxisexplicitMembertruefalsereturn before taxesrr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberDavis International FundDavis International Fund - Class Areturn before taxesUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.09410.0941falsefalsefalsetruefalse2truetruetrue-0.0116-0.0116falsefalsefalsetruefalse3falsetruefalse002006-12-292006-12-29falsefalsetruetruefalseOthernanafalsefalseDavis International Fund - Class A3falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039879Memberrr_ProspectusShareClassAxisexplicitMemberfalsefalsereturn after taxes on distributionsrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsMemberrr_PerformanceMeasureAxisexplicitMemberDavis International FundDavis International Fund - Class Areturn after taxes on distributionsStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.09380.0938falsefalsefalsetruefalse2truetruetrue-0.0119-0.0119falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsefalsefalseOthernanafalsefalseDavis International Fund - Class A return after taxes on distributions4falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039879Memberrr_ProspectusShareClassAxisexplicitMemberfalsefalsereturn after taxes on distributions and sale of fund sharesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsAndSalesMemberrr_PerformanceMeasureAxisexplicitMemberDavis International FundDavis International Fund - Class Areturn after taxes on distributions and sale of fund sharesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.06240.0624falsefalsefalsetruefalse2truetruetrue-0.0088-0.0088falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsefalsefalseOthernanafalsefalseDavis International Fund - Class A return after taxes on distributions and sale of fund shares5falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Brr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039880Memberrr_ProspectusShareClassAxisexplicitMembertruefalsereturn before taxesrr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberDavis International FundDavis International Fund - Class Breturn before taxesUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.09720.0972falsefalsefalsetruefalse2truetruetrue-0.0147-0.0147falsefalsefalsetruefalse3falsetruefalse002006-12-292006-12-29falsefalsetruetruefalseOthernanafalsefalseDavis International Fund - Class B6falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Crr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039881Memberrr_ProspectusShareClassAxisexplicitMembertruefalsereturn before taxesrr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberDavis International FundDavis International Fund - Class Creturn before taxesUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.12720.1272falsefalsefalsetruefalse2truetruetrue-0.0097-0.0097falsefalsefalsetruefalse3falsetruefalse002006-12-292006-12-29falsefalsetruetruefalseOthernanafalsefalseDavis International Fund - Class C7falseRowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*duration2011-03-01T00:00:002011-03-01T00:00:00falsefalseDavis International Funddei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalseDavis International Fund - Class Yrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000082064Memberrr_ProspectusShareClassAxisexplicitMembertruefalsereturn before taxesrr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberDavis International FundDavis International Fund - Class Yreturn before taxesUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.15130.1513falsefalsefalsetruefalse2truetruetrue0.15130.1513falsefalsefalsetruefalse3falsetruefalse002009-12-312009-12-31falsefalsetruetruefalseOthernanafalsefalseDavis International Fund - Class Y37Average Annual Total Returns Davis International FundUnKnownUnKnownUnKnownUnKnownfalsetrueColumnprimaryElement*RowperiodPeriod*Rowdei_LegalEntityAxisAxisdgif_S000014591MemberRowrr_ProspectusShareClassAxisAxis*Rowrr_PerformanceMeasureAxisAxis*RowunitUnit*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to PerformanceTableData.No authoritative reference available.falsefalsePerformance Table56false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://xbrl.sec.gov/rr/role/riskreturn1falsefalsefalse00Davis International Fund | Davis International Fund - Class ADavis International Fund | Davis International Fund - Class Afalsefalsefalsefalsefalse4falsefalseUSDtruefalse{dei_LegalEntityAxis} : Davis International Fund {rr_ProspectusShareClassAxis} : Davis International Fund - Class A 3/1/2011 - 3/1/2011 USD ($) $c_S000014591_C000039879http://www.sec.gov/CIK0000071701duration2011-03-01T00:00:002011-03-01T00:00:00falsefalsedgif_S000014591Memberdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldidgif_S000014591Memberdei_LegalEntityAxisexplicitMemberfalsefalsedgif_C000039879Memberrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldidgif_C000039879Memberrr_ProspectusShareClassAxisexplicitMemberRatioStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalseDavis International Fund | Davis International Fund - Class A58false0rr_BarChartClosingTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00 Highest/Lowest quarterly results during this time period were: HIGHEST: 29.52% for the quarter ended June 30, 2009 LOWEST: (21.98%) for the quarter ended September 30, 2008 falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringIf 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph ii -Subsection b falsefalseBar Chart, Closing154Risk/Return SummaryUnKnownUnKnownUnKnownUnKnownfalsetrue