Prospectus: Risk/Return: Legal Entity Identifier Entity Inv Company Type Document Type Document Period End Date Registrant Name Entity Central Index Key Amendment Flag Amendment Description Trading Symbol Document Creation Date Document Effective Date Prospectus Date Performance Measure [Axis] Share Class [Axis] Document [Axis] Prospectus Coregistrant [Axis] Coregistrant [Domain] Series [Axis] Series S000010025 [Member] The Growth Fund The Growth Fund Member Returns After Taxes on Distributions After Taxes on Distributions Returns After Taxes on Distributions and Sale of Shares After Taxes on Distributions and Sales Returns After Taxes on Distributions and sale of Shares Before Taxes Russell 1000 Index Russell 1000 Index [Member] Russell 1000® Index Russell 1000 Growth Index Russell 1000 Growth Index [Member] Russell 1000® Growth Index Share Classes C000027718 [Member] The Growth Fund The Growth Fund C000027719 [Member] Shares Shares Growth Fund Risk [Axis] All Risks [Member] Risk Nondiversified Status [Member] Risk Lose Money [Member] Risk Money Market Fund Price Fluctuates [Member] Risk Money Market Fund May Impose Fees or Suspend Sales [Member] Risk Money Market Fund May Not Preserve Dollar [Member] Risk Money Market Fund Sponsor May Not Provide Support [Member] Risk Not Insured Depository Institution [Member] Risk Not Insured [Member] Market Risk Market Risk [Member] Investment Risk Investment Risk [Member] Equity Securities Risk Equity Securities Risk [Member] Quantitative Model Risk Quantitative Model Risk [Member] Management Risk Management Risk [Member] Growth Investing Risk Growth Investing Risk [Member] Large Cap Risk Large Cap Risk [Member] Mid Cap Risk Mid Cap Risk [Member] Issuer Risk Issuer Risk [Member] Sector Concentration Risk Sector Concentration Risk [Member] Information Technology Sector Risk Information Technology Sector Risk [Member] Consumer Discretionary Sector Risk Consumer Discretionary Sector Risk [Member] Health Care Sector Risk Health Care Sector Risk [Member] Large Shareholder Purchase and Redemption Risk Large Shareholder Purchase and Redemption Risk [Member] Cybersecurity Risk Cybersecurity Risk [Member] Management Fees Management Fees (as a percentage of Assets) Other Expenses Other Expenses (as a percentage of Assets): Acquired (Underlying) Fund Fees and Expenses Acquired Fund Fees and Expenses Total Annual Fund Operating Expenses Expenses (as a percentage of Assets) 1 Year Expense Example, with Redemption, 1 Year 1 Years 3 Years Expense Example, with Redemption, 3 Years 5 Years Expense Example, with Redemption, 5 Years 10 Years Expense Example, with Redemption, 10 Years 2015 Annual Return 2015 2016 Annual Return 2016 2017 Annual Return 2017 2018 Annual Return 2018 2019 Annual Return 2019 2020 Annual Return 2020 2021 Annual Return 2021 2022 Annual Return 2022 2023 Annual Return 2023 2024 Annual Return 2024 Risk/Return [Heading] Objective [Heading] Objective, Primary [Text Block] Objective, Secondary [Text Block] Expense [Heading] Expense Narrative [Text Block] Shareholder Fees Caption [Text] Shareholder Fees Column [Text] Maximum Cumulative Sales Charge (as a percentage of Offering Price) Maximum Cumulative Sales Charge (as a percentage) Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) Maximum Deferred Sales Charge (as a percentage of Offering Price) Maximum Deferred Sales Charge (as a percentage) Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) Redemption Fee (as a percentage of Amount Redeemed) Redemption Fee (as a percentage of Amount Redeemed) Redemption Fee Redemption Fee Exchange Fee (as a percentage of Amount Redeemed) Exchange Fee Maximum Account Fee (as a percentage of Assets) Maximum Account Fee Shareholder Fee, Other Operating Expenses Caption [Text] Operating Expenses Column [Text] Distribution and Service (12b-1) Fees Distribution or Similar (Non 12b-1) Fees Component1 Other Expenses Component2 Other Expenses Component3 Other Expenses Fee Waiver or Reimbursement Fee Waiver or Reimbursement Less Fee Waiver and/or Expense Reimbursements Less Fee Waiver and/or Expense Reimbursement Net Expenses Net Expenses (as a percentage of Assets) Total Annual Operating Expenses After Fee Waiver and/or Expense Reimbursement Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement Fee Waiver or Reimbursement over Assets, Date of Termination Portfolio Turnover [Heading] Portfolio Turnover [Text Block] Portfolio Turnover, Rate Expense Footnotes [Text Block] Expenses Deferred Charges [Text Block] Expenses Range of Exchange Fees [Text Block] Expense Breakpoint Discounts [Text] Expense Breakpoint, Minimum Investment Required [Amount] Expenses Represent Both Master and Feeder [Text] Expenses Explanation of Nonrecurring Account Fee [Text] Other Expenses, New Fund, Based on Estimates [Text] Acquired Fund Fees and Expenses, Based on Estimates [Text] Expenses Other Expenses Had Extraordinary Expenses Been Included [Text] Expenses Restated to Reflect Current [Text] Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] Expense Example [Heading] Expense Example by Year [Heading] Expense Example Narrative [Text Block] Expense Example by, Year, Caption [Text] Expense Example, No Redemption Narrative [Text Block] Expense Example, No Redemption, By Year, Caption [Text] 1 Year Expense Example, No Redemption, 1 Year 3 Years Expense Example, No Redemption, 3 Years 5 Years Expense Example, No Redemption, 5 Years 10 Years Expense Example, No Redemption, 10 Years Expense Example Footnotes [Text Block] Expense Example Closing [Text Block] Strategy [Heading] Strategy Narrative [Text Block] Strategy Portfolio Concentration [Text] Risk [Heading] Risk [Text Block] Risk Footnotes [Text Block] Risk Closing [Text Block] Risk Caption Risk Column [Text] Bar Chart and Performance Table [Heading] Performance Narrative [Text Block] Performance Information Illustrates Variability of Returns [Text] Performance One Year or Less [Text] Performance Additional Market Index [Text] Performance Availability Phone [Text] Performance Availability Website Address [Text] Performance Past Does Not Indicate Future [Text] Bar Chart [Heading] Bar Chart Narrative [Text Block] Bar Chart Does Not Reflect Sales Loads [Text] Annual Return Caption [Text] Caption Annual Return, Column [Text] Column Annual Return, Inception Date Inception Date Annual Return 1990 Annual Return 1991 Annual Return 1992 Annual Return 1993 Annual Return 1994 Annual Return 1995 Annual Return 1996 Annual Return 1997 Annual Return 1998 Annual Return 1999 Annual Return 2000 Annual Return 2001 Annual Return 2002 Annual Return 2003 Annual Return 2004 Annual Return 2005 Annual Return 2006 Annual Return 2007 Annual Return 2008 Annual Return 2009 Annual Return 2010 Annual Return 2011 Annual Return 2012 Annual Return 2013 Annual Return 2014 Annual Return 2025 Bar Chart Footnotes [Text Block] Bar Chart Closing [Text Block] Bar Chart, Reason Selected Class Different from Immediately Preceding Period [Text] Bar Chart, Returns for Class Not Offered in Prospectus [Text] Year to Date Return, Label Bar Chart, Year to Date Return, Date Bar Chart, Year to Date Return Highest Quarterly Return, Label Label Highest Quarterly Return, Date Highest Quarterly Return Label Lowest Quarterly Return, Label Lowest Quarterly Return, Date Lowest Quarterly Return Performance Table Heading Performance Table Does Reflect Sales Loads Performance Table Market Index Changed Index No Deduction for Fees, Expenses, Taxes [Text] Performance Table Uses Highest Federal Rate Performance Table Not Relevant to Tax Deferred Performance Table One Class of after Tax Shown [Text] Performance Table Explanation after Tax Higher Performance Table Narrative Performance Table Footnotes, Reason Performance Information for Class Different from Immediately Preceding Period [Text] Performance Table Footnotes Performance Table Closing [Text Block] Average Annual Return, Caption Average Annual Return, Column Name Label 1 Year 5 Years 10 Years Since Inception Inception Date Money Market Seven Day Yield, Caption [Text] Money Market Seven Day Yield Column [Text] Money Market Seven Day Yield Phone Money Market Seven Day Yield Money Market Seven Day Tax Equivalent Yield Thirty Day Yield Caption Thirty Day Yield Column [Text] Thirty Day Yield Phone Thirty Day Yield Thirty Day Tax Equivalent Yield Supplement to Prospectus [Text Block] S000010026 [Member] The Value Fund The Value Fund Member Russell 1000 Value Index Russell 1000 Value Index [Member] Russell 1000® Value Index C000027720 [Member] The Value Fund The Value Fund C000027721 [Member] Shares Value Fund Value Investing Risk Value Investing Risk [Member] Financials Sector Risk Financials Sector Risk [Member] Energy Sector Risk Energy Sector Risk [Member] Industrials Sector Risk Industrials Sector Risk [Member] S000010027 [Member] The MidCap Growth Fund The MidCap Growth Fund Member Russell Midcap Growth Index Russell Midcap Growth Index [Member] Russell Midcap® Growth Index C000027722 [Member] The MidCap Growth Fund The MidCap Growth Fund C000027723 [Member] Shares MidCap Growth Fund Mid Cap and Small Cap Risk Mid Cap and Small Cap Risk [Member] S000082913 [Member] The MidCap Value Fund The MidCap Value Fund Member Russell Midcap Value Index Russell Midcap Value Index [Member] Russell Midcap® Value Index C000246257 [Member] Shares MidCap Value Fund S000010030 [Member] The Bond Fund The Bond Fund Member Bloomberg US Aggregate Bond Index Bloomberg US Aggregate Bond Index [Member] Bloomberg US Aggregate Bond Index C000027728 [Member] The Bond Fund The Bond Fund C000027729 [Member] Shares Bond Fund Interest Rate Risks Interest Rate Risks [Member] Income Risk Income Risk [Member] Credit Risks Credit Risks [Member] Mortgage Backed and Asset Backed Risk Mortgage Backed and Asset Backed Risk [Member] Call Risk Call Risk [Member] Extension Risk Extension Risk [Member] Maturity Risk Maturity Risk [Member] Prepayment Risks Prepayment Risks [Member] High Yield Risk High Yield Risk [Member] Liquidity Risk Liquidity Risk [Member] Municipal Bond Risk Municipal Bond Risk [Member] U S Government Securities Risk U S Government Securities Risk [Member] S000010031 [Member] The Short Term Government Fund The Short Term Government Fund Member Bloomberg US 15 Year Government Bond Index Bloomberg US 15 Year Government Bond Index [Member] Bloomberg U.S. 1-5 Year Government Bond Index C000027730 [Member] The Short Term Government Fund The Short Term Government Fund C000027731 [Member] Shares Short Term Government Fund Inflation Protected Security Risk Inflation Protected Security Risk [Member] S000010032 [Member] The National Tax-Free Intermediate Bond Fund The National Tax-Free Intermediate Bond Fund Member Bloomberg Municipal Bond Index Bloomberg Municipal Bond Index [Member] Bloomberg Municipal Bond Index Bloomberg 315 Year Blend Municipal Bond Index Bloomberg 315 Year Blend Municipal Bond Index [Member] Bloomberg 3-15 Year Blend Municipal Bond Index C000027732 [Member] The National Tax-Free Intermediate Bond Fund The National Tax-Free Intermediate Bond Fund C000027733 [Member] Shares National Tax-Free Intermediate Bond Fund Tax Risk Tax Risk [Member] State and US Territory Risk State and US Territory Risk [Member] S000010023 [Member] The Missouri Tax-Free Intermediate Bond Fund The Missouri Tax-Free Intermediate Bond Fund Member C000027714 [Member] The Missouri Tax-Free Intermediate Bond Fund The Missouri Tax-Free Intermediate Bond Fund C000027715 [Member] Shares Missouri Tax-Free Intermediate Bond Fund State Specific Risk State Specific Risk [Member] US Territory Risk US Territory Risk [Member] S000010024 [Member] The Kansas Tax-Free Intermediate Bond Fund The Kansas Tax-Free Intermediate Bond Fund Member C000027716 [Member] The Kansas Tax-Free Intermediate Bond Fund The Kansas Tax-Free Intermediate Bond Fund C000027717 [Member] Shares Kansas Tax-Free Intermediate Bond Fund