2.2.0.25truefalse003908 - Disclosure - Risk/Return Detail Data {Elements} - (2027 Extended Distribution Fund - A Shares)truetruefalse1falsefalsefalsefalse4/29/2011 - 4/29/2011 Duration_4_29_2011_To_4_29_2011http://www.sec.gov/CIK0000351601duration2011-04-29T00:00:002011-04-29T00:00:00Unit1Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso421702true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:3false0dei_EntityRegistrantNamedeifalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00RUSSELL INVESTMENT COfalsefalsefalsefalsefalseOtherxbrli:normalizedStringItemTypenormalizedstringThe exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation 12B -Number 240 -Section 12b -Subsection 1 falsefalseRegistrant Name4false0rr_ProspectusDaterrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002011-04-29falsefalsetruefalsefalseOtherxbrli:dateItemTypedateThe date of the prospectus.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 1 -Paragraph 3 -Subsection a falsefalseProspectus Date5false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.russell.com/role/disclosureriskreturndetaildataelements2027extendeddistributionfundshares1falsefalsefalse00falsefalsefalsefalsefalse2falsefalseUSDtruefalse{dei_LegalEntityAxis} : S000014009 Member {rr_ProspectusShareClassAxis} : C000038292 Member 4/29/2011 - 4/29/2011 USD ($) $Duration_4_29_2011_To_4_29_2011_dei_LegalEntityAxis_cik000351601_S000014009Member_rr_ProspectusShareClassAxis_cik000351601_C000038292Memberhttp://www.sec.gov/CIK0000351601duration2011-04-29T00:00:002011-04-29T00:00:00falsefalse2027 Extended Distribution Fund - A Sharesdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldicik000351601_S000014009Memberdei_LegalEntityAxisexplicitMemberfalsefalse2027 Extended Distribution Fund - A Sharesrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldicik000351601_C000038292Memberrr_ProspectusShareClassAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse2027 Extended Distribution Fund - A Shares | 2027 Extended Distribution Fund - A Shares6true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:7false0rr_MaximumCumulativeSalesChargeOverOfferingPricerrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruetrue0.05750.0575falsefalsefalsefalsefalseOtherrr: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)8false0rr_MaximumDeferredSalesChargeOverOfferingPricerrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruetrue0.010.01[1]falsefalsefalsefalsefalseOtherrr:NonNegativePure4TypepureMaximum Deferred Sales Charge (Load) (as a percentage of ____) A.3.instructions.2.a.i "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). A.3.instructions.2.a.ii 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)9false0rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOtherrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruetrue00falsefalsefalsefalsefalseOtherrr:NonNegativePure4TypepureMaximum Sales Charge (Load) Imposed on Reinvested Dividends[and other Distributions] (as a percentage of ____)Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph 3 -Subsection table falsefalseMaximum Sales Charge (Load) Imposed on Reinvested Dividends10false0rr_ManagementFeesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruetrue0.00200.0020[2]falsefalsefalsefalsefalseOtherrr: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 falsefalseAdvisory Fee11false0rr_DistributionAndService12b1FeesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruetrue0.00250.0025[2]falsefalsefalsefalsefalseOtherrr: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 (12b-1) Fees12false0rr_OtherExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruetrue0.04560.0456[2]falsefalsefalsefalsefalseOtherrr: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 Expenses13false0rr_AcquiredFundFeesAndExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue0.00520.0052[2]falsefalsefalsefalsefalseOtherrr: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 falsefalseAcquired Fund Fees and Expenses14false0rr_ExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruetrue0.05530.0553[2]falsefalsefalsefalsefalseOtherrr: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 Fund Operating Expenses15false0rr_FeeWaiverOrReimbursementOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truetruetrue-0.0449-0.0449[2]falsefalsefalsefalsefalseOtherrr: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 falsefalseFee Waiver or Reimbursement16false0rr_NetExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruetrue0.01040.0104[2]falsefalsefalsefalsefalseOtherrr: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 Annual Fund Operating Expenses17false0rr_ExpenseExampleYear01rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsetrue675675falsetruefalsefalsefalseMonetaryrr: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 Year18false0rr_ExpenseExampleYear03rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsetrue17531753falsefalsefalsefalsefalseMonetaryrr: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 Years19false0rr_ExpenseExampleYear05rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsetrue28192819falsefalsefalsefalsefalseMonetaryrr: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 Years20false0rr_ExpenseExampleYear10rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsetrue54375437falsefalsefalsefalsefalseMonetaryrr: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 Years21false0rr_AnnualReturn2008rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.2290-0.2290falsefalsefalsefalsefalseOtherxbrli: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 falsefalseAnnual Return 200822false0rr_AnnualReturn2009rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.20360.2036falsefalsefalsefalsefalseOtherxbrli: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 falsefalseAnnual Return 200923false0rr_AnnualReturn2010rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.03210.0321falsefalsefalsefalsefalseOtherxbrli: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 falsefalseAnnual Return 201024false0rr_HighestQuarterlyReturnLabelrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Highest Quarterly Return:falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringIf 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 falsefalseHighest Quarterly Return, Label25false0rr_BarChartHighestQuarterlyReturnDaterrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002009-09-30falsefalsetruefalsefalseOtherxbrli:dateItemTypedateIf 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 falsefalseHighest Quarterly Return, Date26false0rr_BarChartHighestQuarterlyReturnrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.10000.1000falsefalsefalsefalsefalseOtherxbrli: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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph ii -Subsection b falsefalseHighest Quarterly Return27false0rr_LowestQuarterlyReturnLabelrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Lowest Quarterly Return:falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringIf 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 falsefalseLowest Quarterly Return, Label28false0rr_BarChartLowestQuarterlyReturnDaterrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse002008-12-31falsefalsetruefalsefalseOtherxbrli:dateItemTypedateIf 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 falsefalseLowest Quarterly Return, Date29false0rr_BarChartLowestQuarterlyReturnrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.0965-0.0965falsefalsefalsefalsefalseOtherxbrli: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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph ii -Subsection b falsefalseLowest Quarterly Return30false0rr_AverageAnnualReturnYear01rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0269-0.0269falsefalsefalsefalsefalseOtherxbrli: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 falsefalse1 Year31false0rr_AverageAnnualReturnSinceInceptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0335-0.0335falsefalsefalsefalsefalseOtherxbrli: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 falsefalseSince Inception32false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.russell.com/role/disclosureriskreturndetaildataelements2027extendeddistributionfundshares1falsefalsefalse00falsefalsefalsefalsefalse3falsefalsetruefalse{dei_LegalEntityAxis} : S000014009 Member {rr_ProspectusShareClassAxis} : C000038292 Member {rr_PerformanceMeasureAxis} : Return After Taxes on Distributions 4/29/2011 - 4/29/2011 Duration_4_29_2011_To_4_29_2011_dei_LegalEntityAxis_cik000351601_S000014009Member_rr_PerformanceMeasureAxis_rr_AfterTaxesOnDistributionsMember_rr_ProspectusShareClassAxis_cik000351601_C000038292Memberhttp://www.sec.gov/CIK0000351601duration2011-04-29T00:00:002011-04-29T00:00:00falsefalse2027 Extended Distribution Fund - A Sharesdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldicik000351601_S000014009Memberdei_LegalEntityAxisexplicitMemberfalsefalse2027 Extended Distribution Fund - A Sharesrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldicik000351601_C000038292Memberrr_ProspectusShareClassAxisexplicitMemberfalsefalseReturn After Taxes on Distributionsrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsMemberrr_PerformanceMeasureAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalse2027 Extended Distribution Fund - A Shares | 2027 Extended Distribution Fund - A Shares | Return After Taxes on Distributions33true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:34false0rr_AverageAnnualReturnYear01rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0326-0.0326falsefalsefalsefalsefalseOtherxbrli: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 falsefalse1 Year35false0rr_AverageAnnualReturnSinceInceptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0440-0.0440falsefalsefalsefalsefalseOtherxbrli: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 falsefalseSince Inception36false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.russell.com/role/disclosureriskreturndetaildataelements2027extendeddistributionfundshares1falsefalsefalse00falsefalsefalsefalsefalse4falsefalsetruefalse{dei_LegalEntityAxis} : S000014009 Member {rr_ProspectusShareClassAxis} : C000038292 Member {rr_PerformanceMeasureAxis} : Return After Taxes on Distributions and Sale of Fund Shares 4/29/2011 - 4/29/2011 Duration_4_29_2011_To_4_29_2011_dei_LegalEntityAxis_cik000351601_S000014009Member_rr_PerformanceMeasureAxis_rr_AfterTaxesOnDistributionsAndSalesMember_rr_ProspectusShareClassAxis_cik000351601_C000038292Memberhttp://www.sec.gov/CIK0000351601duration2011-04-29T00:00:002011-04-29T00:00:00falsefalse2027 Extended Distribution Fund - A Sharesdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldicik000351601_S000014009Memberdei_LegalEntityAxisexplicitMemberfalsefalse2027 Extended Distribution Fund - A Sharesrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldicik000351601_C000038292Memberrr_ProspectusShareClassAxisexplicitMemberfalsefalseReturn After Taxes on Distributions and Sale of Fund Sharesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsAndSalesMemberrr_PerformanceMeasureAxisexplicitMemberUnit1Standardhttp://www.xbrl.org/2003/instancepurexbrli0OthernaNo definition available.No authoritative reference available.falsefalse2027 Extended Distribution Fund - A Shares | 2027 Extended Distribution Fund - A Shares | Return After Taxes on Distributions and Sale of Fund Shares37true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:38false0rr_AverageAnnualReturnYear01rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0174-0.0174falsefalsefalsefalsefalseOtherxbrli: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 falsefalse1 Year39false0rr_AverageAnnualReturnSinceInceptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruetrue-0.0344-0.0344falsefalsefalsefalsefalseOtherxbrli: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 falsefalseSince Inception40false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.russell.com/role/disclosureriskreturndetaildataelements2027extendeddistributionfundshares1falsefalsefalse00falsefalsefalsefalsefalse5falsefalseUSDtruefalse{dei_LegalEntityAxis} : S000014009 Member 4/29/2011 - 4/29/2011 USD ($) $Duration_4_29_2011_To_4_29_2011_dei_LegalEntityAxis_cik000351601_S000014009Memberhttp://www.sec.gov/CIK0000351601duration2011-04-29T00:00:002011-04-29T00:00:00falsefalse2027 Extended Distribution Fund - A Sharesdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldicik000351601_S000014009Memberdei_LegalEntityAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$OthernaNo definition available.No authoritative reference available.falsefalse2027 Extended Distribution Fund - A Shares41true0rr_RiskReturnAbstractrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseRisk/Return:42false0rr_RiskReturnHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div class="MetaData"> <p><a name="link-4c6d8e58-4"> </a><font style="text-align: center; line-height: 14pt; text-transform: uppercase; font-family: Times New Roman; font-size: 12pt; font-weight: bold; text-decoration: underline;" class="_mt">2027 Extended Distribution Fund&nbsp;&#8212;&nbsp;A Shares</font></p></div>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/Return [Heading]43false0rr_ObjectiveHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font style="text-align: left; line-height: 14pt; margin-top: 7pt; display: block; font-family: Times New Roman; font-size: 12pt; font-weight: bold;" class="_mt">Investment Objective</font>falsefalsefalsefalsefalseOtherxbrli: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 falsefalseObjective [Heading]44false0rr_ObjectivePrimaryTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The Fund primarily seeks to provide a stated annual target distribution for 20 years from its inception. </font> </div>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 falsefalseObjective, Primary [Text Block]45false0rr_ObjectiveSecondaryTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> As a secondary objective, the Fund seeks preservation of a portion of the capital initially invested. </div>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 falsefalseObjective, Secondary [Text Block]46false0rr_ExpenseHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font style="text-align: left; line-height: 14pt; margin-top: 7pt; display: block; font-family: Times New Roman; font-size: 12pt; font-weight: bold;" class="_mt">Fees and Expenses of the Fund</font>falsefalsefalsefalsefalseOtherxbrli: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 falsefalseExpense [Heading]47false0rr_ExpenseNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <div class="MetaData"> <p style="margin-top: 2pt; margin-bottom: 2pt;"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The following tables describe the fees and expenses that you may pay if you buy and hold Shares of the Fund. Please see the Expense Notes section of the Fund's Prospectus for further information regarding expenses of the Fund.</font></p> <p style="margin-top: 2pt; margin-bottom: 2pt;"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt"><font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt"><font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $<font class="_mt">50,000</font> in Russell Funds</font></font>. </font></font>More information about these and other discounts is available from your financial professional and in the Front-End Sales Charges section and the More About Deferred Sales Charges section, beginning on pages 91 and 93, respectively of the Prospectus, and the Purchase, Exchange and Redemption of Fund Shares section, beginning on page 23 of the Fund's Statement of Additional Information.</font></p></div> </div>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 falsefalseExpense Narrative [Text Block]48false0rr_ShareholderFeesCaptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div class="MetaData"> <p><font style="text-align: center; line-height: 12pt; font-style: italic; margin-top: 4pt; font-family: Times New Roman; font-size: 10pt; font-weight: bold;" class="_mt">Shareholder Fees (fees paid directly from your investment)</font></p></div>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 Caption [Text]49false0rr_OperatingExpensesCaptionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div class="MetaData"> <p><font style="text-align: center; line-height: 12pt; font-style: italic; margin-top: 4pt; font-family: Times New Roman; font-size: 10pt; font-weight: bold;" class="_mt">Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)</font></p></div>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 falsefalseOperating Expenses Caption [Text]50false0rr_FeeWaiverOrReimbursementOverAssetsDateOfTerminationrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00April 29, 2012falsefalsefalsefalsefalseOtherus-types:dateStringItemTypenormalizedstringThis element represents the date of expected termination of any expense reimbursement or fee waiver arrangements that reduce any Fund operating expenses (SEC Form N-1A 2006-09-14 A.3.table.1.11 Total Annual Fund Operating Expenses A.3.instructions.3.e).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 3 -Subparagraph e -Subsection instructions falsefalseFee Waiver or Reimbursement over Assets, Date of Termination51false0rr_PortfolioTurnoverHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div class="MetaData"> <p><font style="text-align: center; line-height: 12pt; font-style: italic; margin-top: 4pt; font-family: Times New Roman; font-size: 10pt; font-weight: bold;" class="_mt">Portfolio Turnover</font></p></div>falsefalsefalsefalsefalseOtherxbrli: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 [Heading]52false0rr_PortfolioTurnoverTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <div class="MetaData"> <p style="margin-top: 0px; margin-bottom: 0px;"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The Fund pays no transaction costs or commissions when it buys and sells Shares of the Underlying Funds. The Underlying Funds pay transaction costs, such as commissions, when they buy and sell securities (or "turn over" their portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs affect the Underlying Funds' performance. Portfolio turnover rates for the Underlying Funds are available in the Prospectus for the Underlying Funds.</font></p><font size="2" class="_mt"> </font></div> </div>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 [Text Block]53false0rr_ExpenseBreakpointDiscountsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt"><font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $<font class="_mt">50,000</font> in Russell Funds</font></font>. </font>falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringInclude 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph b -Subsection instructions falsefalseExpense Breakpoint Discounts [Text]54false0rr_ExpenseBreakpointMinimumInvestmentRequiredAmountrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse5000050000falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents the minimum level of investment required to qualify for discounted sales charges or fund expenses (SEC Form N-1A 2006-09-14 A.3.instructions.1.b).Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 1 -Subparagraph b -Subsection instructions falsefalseExpense Breakpoint, Minimum Investment Required [Amount]55false0rr_ExpenseExampleHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font style="text-align: center; line-height: 12pt; font-style: italic; margin-top: 4pt; font-family: Times New Roman; font-size: 10pt; font-weight: bold;" class="_mt">Example</font>falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringHeading for Expense Example.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 3 -Paragraph 4 -Subsection instructions falsefalseExpense Example [Heading]56false0rr_ExpenseExampleNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <div class="MetaData"> <p><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt"><em>This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.</em></font></p> <p style="margin-top: 2pt; margin-bottom: 2pt;"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your Shares at the end of those periods. The example also assumes your investment has a 5% return each year and that operating expenses remain the same. The calculation of costs for the one year period takes into account the effect of any current contractual fee waivers and/or reimbursements. The calculation of costs for the remaining periods takes such fee waivers and/or reimbursements into account only for the first year of the periods.</font></p> <p><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">Although your actual costs may be higher or lower, under these assumptions your costs would be:</font></p></div> </div>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 Narrative [Text Block]57false0rr_StrategyHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div class="MetaData"><font style="text-align: left; line-height: 14pt; margin-top: 7pt; display: block; font-family: Times New Roman; font-size: 12pt; font-weight: bold;" class="_mt"><font class="_mt"><font style="text-align: left; line-height: 14pt; margin-top: 7pt; display: block; font-family: Times New Roman; font-size: 12pt; font-weight: bold;" class="_mt">Investments, Risks and Performance</font></font></font> <div> </div> <div> <p><font style="text-align: center; line-height: 12pt; font-style: italic; margin-top: 4pt; font-family: Times New Roman; font-size: 10pt; font-weight: bold;" class="_mt">Principal Investment Strategies of the Fund</font></p></div></div>falsefalsefalsefalsefalseOtherxbrli: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 [Heading]58false0rr_StrategyNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <div class="MetaData"><font style="text-align: left; line-height: 14pt; margin-top: 7pt; display: block; font-family: Times New Roman; font-size: 12pt; font-weight: bold;" class="_mt"><font style="text-align: left; line-height: 14pt; margin-top: 7pt; display: block; font-family: Times New Roman; font-size: 12pt; font-weight: bold;" class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The Fund is not intended for pre-retirement wealth accumulation. It is intended to provide for <u><strong>distribution (or "decumulation") of assets</strong></u> during retirement. The Fund seeks to provide steady, predictable, but <u><strong>not guaranteed</strong></u> distributions by making <u><strong>ten stated annual target distributions</strong></u> (the "Term"). The Fund's distribution policy may be modified at any time. The Fund's current annual target distribution is $0.60 per share per year payable annually. This distribution is <u><strong>not guaranteed</strong></u> and a substantial portion of the distribution may be return of capital.</font></font></font> <div> <p><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The Fund was opened in 2008 and, as of the date of this Prospectus, has made three distributions. The Fund intends to make its last annual distribution in 2027. The annual distribution will consist of all income from dividends and interest, short-term realized capital gains and long-term realized capital gains ("Required Tax Distributions"). If the Required Tax Distributions for a year are less than the annual target distribution, the annual target distribution will also include a <u><strong>return of capital</strong></u>. This means you will receive a portion of your original investment back as part or all of the annual target distribution. If the Required Tax Distributions are greater than the annual target distribution, there will be a "<u><strong>Distribution Overage.</strong></u>" In order for you to receive your expected annual target distributions, <u><strong>you must reinvest all Distribution Overages</strong></u>. The target distributions per share will be reduced in future years as you will hold more shares after you re-invest the Distribution Overage. If you do not immediately reinvest all Distribution Overages by purchasing additional Fund shares, you will not receive the same distribution from this Fund in subsequent years.</font></p> <p><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">Because the Fund's net asset value ("NAV") changes daily, the Fund's <u><strong>payout ratio</strong></u> (target distribution per share divided by net asset value per share) will <u><strong>change on a daily basis</strong></u>. To calculate the number of shares you should buy in order to received a desired aggregate annual distribution, see "Determining How Many Shares to Buy" in the Fund's Prospectus.</font></p> <p style="margin-top: 2pt; margin-bottom: 2pt;">&nbsp;</p><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The Fund is a fund of funds and seeks to achieve its objective primarily by investing in the Underlying Funds using a dynamic asset allocation investment strategy. The Underlying Funds are designed to provide the foundation for a diversified portfolio. Each major asset class (U.S. equity, non-U.S. equity, fixed income, real assets and cash) is represented by one or more Underlying Funds. The Underlying Funds employ a multi-manager approach whereby assets of the Underlying Fund are allocated to different unaffiliated money managers. The Underlying Funds to which the Fund allocates its assets and the percentage allocations will change over time. In addition, the Fund may in the future invest in other funds which are not currently Underlying Funds.<font size="3" class="_mt"> </font> </font> <p>&nbsp;</p> <p>&nbsp;</p> <p><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">Please refer to the "Investment Objective and Investment Strategies" section in the Fund's Prospectus for further information.</font></p></div></div> </div>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 Narrative [Text Block]59false0rr_RiskHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div class="MetaData"> <p><font style="text-align: center; line-height: 12pt; font-style: italic; margin-top: 4pt; font-family: Times New Roman; font-size: 10pt; font-weight: bold;" class="_mt">Principal Risks of Investing in the Fund</font></p></div>falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNarrative Risk Disclosure.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 1 -Subsection b falsefalseRisk [Heading]60false0rr_RiskNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <div class="MetaData"> <p><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">An investment in the Fund, like any investment, has risks.&nbsp;<font class="_mt"><font class="_mt">The value of the Fund fluctuates and you could lose money</font>.</font> The principal risks of investing in the Fund are those associated with:</font></p> <ul> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Purchase After First Stated Annual Target Distribution.</em> Investors who purchase shares after the Fund has made its first stated annual target distribution may not receive the same results as investors who purchase shares prior to that distribution. This may include a different payout ratio and/or a different amount of the investor's initial investment remaining at the end of the period. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Target Distribution.</em> Neither the Fund nor RIMCo can offer any assurance that the Fund will be able to make its target distributions or return all or a portion of your initial investment. Exceptional market returns, both positive and negative, may impact the ability of the Fund to make its target distributions as well as the amount of your initial investment that will remain at the end of the Fund's term. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Impact of Changes to Net Asset Value</em>. If the NAV per share of the Fund decreases due to declines in the value of the Fund's investments, there will be a reduced probability that the Fund will make the full amount of each of its target distributions and the amount of your initial investment remaining at the end of the Term will be less and may possibly be zero. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Return of Capital.</em> To the extent that income and capital gains are insufficient to pay the targeted distributions, the Fund will distribute a portion of invested capital as a return of capital. Substantial return of capital may decrease the likelihood of the Fund achieving its secondary objective of preservation of a portion of the capital initially invested. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Sufficient Assets. </em>The Fund seeks to provide a steady, but not guaranteed, level of distributions to its shareholders for the Term of the Fund. This is contingent on the Fund having sufficient assets to make such distributions. If the Fund does not have sufficient assets, it will distribute the remaining assets and the Fund will terminate. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Investment Model Assumptions.</em> The investment model used by the Funds relies on RIMCo's capital markets assumptions. The capital markets assumptions may differ from actual results and the investment model's asset allocation may be more aggressive or more conservative than necessary. If investment performance is substantially below assumptions in the investment model such that even a very conservative asset allocation appears unlikely to meet the Fund's primary objective of paying the stated target distribution, the Fund may shift into an asset allocation with higher risk and higher potential for return to increase the likelihood that the Fund can make its target distributions. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Investing in Affiliated Underlying Funds</em>. The assets of the Fund are invested primarily in Shares of the Underlying Funds, and the investment performance of the Fund is directly related to the investment performance of the Underlying Funds in which it invests. RIMCo is the investment adviser for both the Fund and the Underlying Funds and may be deemed to have a conflict of interest in determining the allocation of the Fund to the Underlying Funds. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Asset Allocation.</em> Neither the Fund nor RIMCo can offer any assurance that the asset allocation of the Fund will either maximize returns or minimize risks. Nor can the Fund or RIMCo offer assurance that a recommended allocation will be the appropriate allocation in all circumstances for every investor. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Long-Term Viability Risk</em>. There can be no assurance that the Fund will grow to an economically viable size, in which case the Fund may cease operations. In such an event, investors may be required to liquidate or transfer their investments at an inopportune time. You should consider your own investment goals and risk tolerance before investing in any Fund.</li></ul> <p style="margin-top: 0px; margin-bottom: 0px;"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The Fund is exposed to the same risks as the Underlying Funds in direct proportion to the allocation of its assets among the Underlying Funds. The following are the principal risks associated with investing in the Underlying Funds which are also principal risks of investing in the Fund as a result of its investment in the Underlying Funds:</font></p> <p style="margin-top: 0px; margin-bottom: 0px;">&nbsp;</p> <ul> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Multi-Manager Approach.</em> The investment styles employed by the money managers may not be complementary. A multi-manager approach could result in more exposure to certain types of securities and higher portfolio turnover. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Active Security Selection</em>. The securities selected for the portfolio may decline in value. Additionally, securities selected may cause a Fund to underperform relative to other funds with similar investment objectives and strategies. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Equity Securities</em>. The value of equity securities will rise and fall in response to the activities of the company that issued them, general market conditions and/or economic conditions. Investments in small capitalization companies may involve greater risks because these companies generally have narrower markets, more limited managerial and financial resources and a less diversified product offering than larger, more established companies. Investments in preferred stocks are subject to the risks of common stocks, as well as the risk that interest rates will rise and make the fixed dividend feature, if any, less appealing to investors resulting in a decline in price. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Fixed Income Securities</em>. Prices of fixed income securities generally rise and fall in response to, among other things, interest rate changes. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Mortgage-Backed Securities</em>. Mortgage-backed securities may be affected by, among other things, changes or perceived changes in interest rates, factors concerning the interests in and structure of the issuer or the originator of the mortgage, or the quality of the underlying assets. The underlying assets may default or decline in quality or value. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Bank Obligations</em>. The banking industry may be particularly susceptible to certain economic factors such as interest rate changes, adverse developments in the real estate market, fiscal and monetary policy and general economic cycles. The banking industry may also be impacted by legal and regulatory developments. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Non-U.S. and Emerging Markets Securities.</em> Non-U.S. securities have risks relating to political, economic and regulatory conditions in foreign countries. The risks associated with non-U.S. securities may be amplified for emerging markets securities. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Derivatives</em>. Derivatives are subject to a number of risks such as liquidity risk, market risk, credit risk, default risk, counterparty risk (the risk that the other party in an agreement will fail to perform its obligations) and management risk. They also involve the risk of mispricing or improper valuation and the risk that changes in the value of the derivative may not correlate exactly with the change in the value of the underlying asset, rate or index. Credit default swaps could result in losses if the creditworthiness of the company or companies on which the credit default swap is based is evaluated incorrectly. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Commodity Risk</em>. Exposure to the commodities markets may subject the Fund to greater volatility than investments in traditional securities, particularly if the investments involve leverage. The value of commodity-linked derivative instruments may be affected by changes in overall market movements, commodity index volatility, changes in interest rates or sectors affecting a particular industry or commodity and international economic, political and regulatory developments. The use of leveraged commodity-linked derivatives creates an opportunity for increased return, but also creates the possibility for a greater loss. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Real Estate Securities</em>. Just as real estate values go up and down, the value of the securities of companies involved in the industry also fluctuates. Real estate securities, including REITs, may be affected by changes in the value of the underlying properties owned by the companies and by the quality of tenants' credit. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Infrastructure Companies.</em> Infrastructure companies are subject to the risk that: the potential for realized revenue volumes is significantly lower than projected and/ or cost overruns; the nature of the concession fundamentally changes during the life of the project (e.g., the state sponsor alters the terms); macroeconomic factors such as low GDP growth or high nominal interest rates raise the average cost of funding; government regulation may affect rates charged to customers; government budgetary constraints impact projects; special tariffs are imposed; and changes in tax laws, regulatory policies or accounting standards could be unfavorable. Other risks include environmental damage due to a company's operations or an accident, changes in market sentiment towards infrastructure and terrorist acts. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Master Limited Partnerships ("MLPs").</em> Investing in MLPs involves certain risks related to investing in the underlying assets of the MLPs and risks associated with pooled investment vehicles. MLPs that concentrate in a particular industry or a particular geographic region are subject to risks associated with such industry or region. The benefit derived from the Underlying Fund's investment in MLPs is largely dependent on the MLPs being treated as partnerships for federal income tax purposes. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Liquidity Risk</em>. The market for certain investments may become illiquid under adverse or volatile market or economic conditions, making those investments difficult to sell. The market price of certain investments may fall dramatically if there is no liquid trading market. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Market Volatility</em>. Volatile financial markets can result in greater market and liquidity risk and potential difficulty in valuing portfolio instruments. </li> <li style="line-height: 12pt; display: block; font-family: Times New Roman; font-size: 10pt; font-weight: normal;"><em>Government Intervention in and Regulation of Financial Markets</em>. Changes in government regulation may adversely affect the value of a security.</li></ul> <div class="MetaData"> <p style="line-height: 12pt; margin-top: 0px; display: block; font-family: Times New Roman; margin-bottom: 0px; font-size: 10pt; font-weight: normal;"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt"><font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">An 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</font></font>.</font></p></div> <p style="line-height: 12pt; margin-top: 0px; display: block; font-family: Times New Roman; margin-bottom: 0px; font-size: 10pt; font-weight: normal;"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt"> </font>&nbsp;</p> <p style="line-height: 12pt; margin-top: 0px; display: block; font-family: Times New Roman; margin-bottom: 0px; font-size: 10pt; font-weight: normal;"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">Please refer to the "Risks" section in the Fund's Prospectus for further information.</font></p></div> </div>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 Narrative [Text Block]61false0rr_RiskLoseMoneyrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font class="_mt">The value of the Fund fluctuates and you could lose money</font>.falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringSummarize the principal risks of investing in the Fund, including the risks to which the Fund's portfolio as a whole is subject and the circumstances reasonably likely to affect adversely the Fund's net asset value, yield, and total return. Unless the Fund is a Money Market Fund, disclose that loss of money is a risk of investing in the Fund. 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 -Subsection b falsefalseRisk Lose Money [Text]62false0rr_RiskNotInsuredDepositoryInstitutionrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div class="MetaData"> <p style="line-height: 12pt; margin-top: 0px; display: block; font-family: Times New Roman; margin-bottom: 0px; font-size: 10pt; font-weight: normal;"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt"><font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">An 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</font></font>.</font></p></div>falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringIf the Fund is advised by or sold through an insured depository institution, state that An investment in the Fund is not a deposit of the bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. A Money Market Fund that is advised by or sold through an insured depository institution should combine the disclosure required by Items 2(c)(1)(ii) and (iii) in a single statement.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 1 -Subparagraph iii -Subsection b falsefalseRisk Not Insured Depository Institution [Text]63false0rr_BarChartAndPerformanceTableHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div class="MetaData"> <p><font style="text-align: center; line-height: 12pt; font-style: italic; margin-top: 4pt; font-family: Times New Roman; font-size: 10pt; font-weight: bold;" class="_mt">Performance</font></p><br /></div>falsefalsefalsefalsefalseOtherxbrli: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 [Heading]64false0rr_PerformanceNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <div class="MetaData"> <div> <div><font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt"><font class="_mt"><font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt"><font class="_mt"><font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The following bar chart illustrates the risks of investing in the Fund by showing how the performance of the Fund varies from year to year since the beginning of the Fund's operations</font></font></font>. </font></font></font>The highest and lowest returns for a full quarter during the periods shown in the bar chart are set forth next to the bar chart.&nbsp;<font class="_mt"><font class="_mt">Sales loads are not reflected in the bar chart or in the highest and lowest quarterly returns</font>.</font> If they were, returns would be less than those shown. </font></font></div> <div><font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The table accompanying the bar chart further illustrates the risks of investing in the Fund by showing how the Fund's average annual returns for the periods shown compare with index returns that measure broad market performance.&nbsp;<font class="_mt"><font class="_mt">Index returns do not reflect deductions for fees, expenses or taxes</font>.</font> Index returns do not include fair valuation adjustments which may be included in fund returns.&nbsp;<font class="_mt"><font class="_mt">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</font>.</font> Actual after-tax returns depend on an investor's tax situation and may differ from those shown.&nbsp;<font class="_mt"><font class="_mt">After-tax returns are not relevant to investors who hold their Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts</font>.</font> If the Fund has realized capital losses, the total return after taxes on distributions and sale of Fund Shares may be higher than the total return before taxes and the total return after taxes on distributions. The calculation of total return after taxes on distributions and sale of Fund Shares assumes that a shareholder has sufficient capital gains of the same character to offset any capital losses on a sale of Fund Shares and that the shareholder may therefore deduct the entire capital loss. Please see the Performance Notes section of the Fund's Prospectus for further information regarding performance of the Fund.&nbsp;<font class="_mt"><font class="_mt">Past performance, both before-tax and after-tax, is no indication of future results</font>.</font> More current performance information is available at <font class="_mt"><a>www.russell.com</a></font>.</font><br /></font></div></div><br /><br /><br /></div> </div>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringRisk/Return Bar Chart and Table.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subsection b falsefalsePerformance Narrative [Text Block]65false0rr_PerformanceInformationIllustratesVariabilityOfReturnsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt"><font class="_mt"><font class="_mt"><font style="text-align: left; line-height: 12pt; padding-left: 20pt; font-family: Times New Roman; font-size: 10pt; font-weight: normal;" class="_mt">The following bar chart illustrates the risks of investing in the Fund by showing how the performance of the Fund varies from year to year since the beginning of the Fund's operations</font></font></font>. </font></font>falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringInclude the bar chart and table required by paragraphs (b)(2)(ii) and (iii) of this section. Provide 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 falsefalsePerformance Information Illustrates Variability of Returns [Text]66false0rr_PerformanceAvailabilityWebSiteAddressrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<a>www.russell.com</a>falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringIf applicable, include a statement explaining that updated performance information is available and providing a Website address and/or toll-free (or collect) telephone number where the updated information may be obtained.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph i -Subsection b falsefalsePerformance Availability Website Address [Text]67false0rr_PerformancePastDoesNotIndicateFuturerrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font class="_mt">Past performance, both before-tax and after-tax, is no indication of future results</font>.falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringInclude the bar chart and table required by paragraphs (b)(2)(ii) and (iii) of this section. Provide 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 falsefalsePerformance Past Does Not Indicate Future [Text]68false0rr_BarChartHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div class="MetaData"> <p style="margin-top: 2pt; margin-bottom: 2pt;"><font style="text-align: left; line-height: 11pt; font-style: italic; display: block; font-family: Times New Roman; font-size: 9.2pt; font-weight: normal;" class="_mt">A Shares Calendar Year Total Returns</font></p></div>falsefalsefalsefalsefalseOtherxbrli: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 [Heading]69false0rr_BarChartDoesNotReflectSalesLoadsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font class="_mt">Sales loads are not reflected in the bar chart or in the highest and lowest quarterly returns</font>.falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringInclude the bar chart and table required by Item 4 (b)(2)(ii) and (iii) of this section. Provide 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. Provide annual total returns beginning with the earliest calendar year. Calculate annual returns using the Instructions to Item 8(a), except that the calculations should be based on calendar years. If a Fund's shares are sold subject to a sales load or account fees, state that sales loads or account fees are not reflected in the bar chart and that, if these amounts were reflected, returns would be less than those shown.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph i -Subsection b falsefalseBar Chart Does Not Reflect Sales Loads [Text]70false0rr_BarChartClosingTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <div class="MetaData"> <p style="margin-top: 0px; margin-bottom: 0px;"><font class="_mt">Highest Quarterly Return: </font><font class="_mt">10.00</font>% (3Q/09)</p> <p style="margin-top: 0px; margin-bottom: 0px;"><font class="_mt">Lowest Quarterly Return: </font><font class="_mt">(9.65)</font>% (4Q/08)</p></div> </div>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 Closing [Text Block]71false0rr_PerformanceTableHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Average 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 Heading72false0rr_IndexNoDeductionForFeesExpensesTaxesrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font class="_mt">Index returns do not reflect deductions for fees, expenses or taxes</font>.falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringThe Performance Table includes a parenthetical, indicating that the Index "(reflects no deduction for fees, expenses or taxes)". This tag is used when this is reflected in a footnote.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph iii -Clause 1 -Exhibit 5 -Subsection b falsefalseIndex No Deduction for Fees, Expenses, Taxes [Text]73false0rr_PerformanceTableUsesHighestFederalRaterrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font class="_mt">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</font>.falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringProvide a brief explanation that 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.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph iii -Subsection b falsefalsePerformance Table Uses Highest Federal Rate74false0rr_PerformanceTableNotRelevantToTaxDeferredrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<font class="_mt">After-tax returns are not relevant to investors who hold their Shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts</font>.falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringProvide a brief explanation that the actual after-tax returns depend on an investor's tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.Reference 1: 1 -Publisher SEC -Name Form -Number N-1A -Chapter A -Section 4 -Paragraph 2 -Subparagraph iv -Clause B -Subsection b falsefalsePerformance Table Not Relevant to Tax Deferred75false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.russell.com/role/disclosureriskreturndetaildataelements2027extendeddistributionfundshares1falsefalsefalse00falsefalsefalsefalsefalse6falsefalsetruefalse{dei_LegalEntityAxis} : S000014009 Member {rr_PerformanceMeasureAxis} : Barclays Capital U S Aggregate Bond Index Member 4/29/2011 - 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Until April 29, 2012, RIMCo has contractually agreed to waive up to the full amount of its 0.20% advisory fee and then to reimburse the Fund for other direct expenses to the extent that direct expenses exceed 0.52% of the average daily net assets of the Fund on an annual basis. Direct operating expenses do not include extraordinary expenses or the expenses of other investment companies in which the Fund invests, including the Underlying Funds, which are borne indirectly by the Funds. This waiver and reimbursement may not be terminated during the relevant period except with Board approval.3Effective January 1, 2011, RIMCo changed the Fund's secondary benchmark from the MSCI EAFE Index (net of tax on dividends from foreign holdings) to the Russell Developed ex-U.S. Large Cap Index (net of tax on dividends from foreign holdings). RIMCo believes that the Russell Developed ex-U.S. Large Cap Index (net of tax on dividends from foreign holdings) is an appropriate benchmark which more broadly represents the investable universe of stocks.185Risk/Return Detail Data - (2027 Extended Distribution Fund - A Shares) (USD $)NoRoundingUnKnownUnKnownUnKnowntruetrue