Expense Example, No Redemption: Shareholder Fees [Table] Annual Fund Operating Expenses [Table] Expense Example, With Redemption [Table] Bar Chart [Table] Performance [Table] Expense Example, No Redemption Narrative [Text Block] Market Index Performance [Table] Expense Example, No Redemption [Table] Risk/Return Detail [Table] Performance Measure [Axis] Before Taxes returns after taxes on distributions returns after taxes on distributions and sale of Fund shares Amendment Description Amendment Flag Document Creation Date Document Effective Date Document [Axis] Prospectus Document Period End Date Document Type Entities [Table] Entity [Text Block] Series Trading Symbol Registrant Name Central Index Key Series [Axis] Risk/Return [Heading] Objective Section: Objective [Heading] Objective, Primary [Text Block] Objective, Secondary [Text Block] Strategy Section: Strategy [Heading] Strategy Narrative [Text Block] Strategy Portfolio Concentration [Text] Bar Chart and Performance Table [Heading] Performance Narrative [Text Block] Performance Past Does Not Indicate Future [Text] Performance Information Illustrates Variability of Returns [Text] Performance One Year or Less [Text] Performance Additional Market Index [Text] Bar Chart [Heading] Bar Chart Narrative [Text Block] Bar Chart Does Not Reflect Sales Loads [Text] Bar Chart, Returns for Class Not Offered in Prospectus [Text] Bar Chart, Reason Selected Class Different from Immediately Preceding Period [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 Year to Date Return, Label Bar Chart, Year to Date Return Bar Chart, Year to Date Return, Date Highest Quarterly Return, Label Label Highest Quarterly Return Highest Quarterly Return, Date Lowest Quarterly Return, Label Label Lowest Quarterly Return Lowest Quarterly Return, Date Bar Chart Closing [Text Block] Performance Table Heading Performance Table Narrative Performance Table Does Reflect Sales Loads Performance Table Market Index Changed Performance Table Uses Highest Federal Rate Performance Table Not Relevant to Tax Deferred Performance Table Explanation after Tax Higher Caption Column Label 1 Year 5 Years 10 Years Life of Fund Inception Date DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsLabel DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsYear01 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsYear05 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsYear10 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsSinceInception DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsInceptionDate DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesLabel DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesYear01 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesYear05 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesYear10 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesSinceInception DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesInceptionDate 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 DEPRECATED Market Index Return, Label DEPRECATED 1 Year DEPRECATED 5 Years DEPRECATED 10 Years DEPRECATED Market Index Return, Since inception DEPRECATED Market Index Return, Inception Date Performance Table Footnotes Performance Table Closing [Text Block] Risk Section: Risk [Heading] Risk Narrative [Text Block] Risk Nondiversified Status [Text] Risk Lose Money [Text] Risk Money Market Fund [Text] Risk Not Insured Depository Institution [Text] Risk Caption Risk Column [Text] Risk [Text] Risk Footnotes [Text Block] Risk Closing [Text Block] Expense [Heading] Expense Narrative [Text Block] Expense Breakpoint Discounts [Text] Expense Exchange Traded Fund Commissions [Text] 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 (load) imposed on purchases, as a % of offering price Maximum deferred sales charge (load) imposed on redemptions, as a % of the lower of the original purchase price or net asset value Maximum Deferred Sales Charge (as a percentage of Offering Price) 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] Management fees Distribution and/or service (Rule 12b-1) fees Distribution or Similar (Non 12b-1) Fees Other expenses Other expenses Component1 Other Expenses Component2 Other Expenses Component3 Other Expenses Acquired Fund Fees and Expenses Total annual Fund operating expenses Total annual Fund operating expenses Fee waivers and/or reimbursements Fee waivers and/or reimbursements Total annual Fund operating expenses after fee waivers and/or reimbursements Total annual Fund operating expenses after fee waivers and/or reimbursements Expenses Represent Both Master and Feeder [Text] Expenses Other Expenses Had Extraordinary Expenses Been Included [Text] Expenses Restated to Reflect Current [Text] Expense Example [Heading] Expense Example Narrative [Text Block] Expense Example by Year [Heading] Expense Example by, Year, Caption [Text] Expense Example, By Year, Column [Text] Column Expense Example, with Redemption, 1 Year 1 Year Expense Example, with Redemption, 3 Years 3 Years Expense Example, with Redemption, 5 Years 5 Years Expense Example, with Redemption, 10 Years 10 Years Expense Example, No Redemption, By Year, Caption [Text] Expense Example, No Redemption, By Year, Column [Text] Column Expense Example, No Redemption, 1 Year 1 Year Expense Example, No Redemption, 3 Years 3 Years Expense Example, No Redemption, 5 Years 5 Years Expense Example, No Redemption, 10 Years 10 Years Expense Example Closing [Text Block] Prospectus Date Prospectus: Share Class [Axis] Share Classes Prospectus [Line Items] Form N-1A: Risk/Return: Portfolio Turnover [Heading] Portfolio Turnover [Text Block] Bar Chart and Performance Table Section: Bar Chart Narrative: Bar Chart Table: Bar Chart Closing: Average Annual Return: DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAbstract DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesAbstract Market Index Return: Performance Narrative: Performance Table Section: Performance Table Closing: Expenses: Shareholder Fees: Operating Expenses: Net Expenses (as a percentage of Assets): Expenses (as a percentage of Assets): Other Expenses over Assets: Expense Footnotes: Expense Footnotes [Text Block] Expense Example Narrative: Expense Example: Expense Example Closing: Expense Example Footnotes [Text Block] Portfolio Turnover: Fee Waiver or Reimbursement over Assets, Date of Termination Portfolio Turnover, Rate Expense Breakpoint, Minimum Investment Required [Amount] Performance Table Footnotes, Reason Performance Information for Class Different from Immediately Preceding Period [Text] Bar Chart Footnotes [Text Block] Performance Table One Class of after Tax Shown [Text] Other Expenses, New Fund, Based on Estimates [Text] Acquired Fund Fees and Expenses, Based on Estimates [Text] Expenses Deferred Charges [Text Block] Expenses Range of Exchange Fees [Text Block] Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] Expenses Explanation of Nonrecurring Account Fee [Text] Index No Deduction for Fees, Expenses, Taxes [Text] Annual Return 2013 Annual Return 2014 Performance Availability Website Address [Text] Performance Availability Phone [Text] S000010780 Member (Columbia California Intermediate Municipal Bond Fund) S000010794 Member (Columbia Marsico Growth Fund) S000010803 Member (Columbia Multi-Advisor International Equity Fund) S000010792 Member (Columbia Mid Cap Value Fund) S000010789 Member (Columbia Convertible Securities Fund) S000010795 Member (Columbia Large Cap Core Fund) S000010804 Member (Columbia Marsico International Opportunities Fund) S000010778 Member (Columbia Short Term Municipal Bond Fund) S000010797 Member (Columbia Marsico Focused Equities Fund) S000010793 Member (Columbia Small Cap Value Fund II) S000010802 Member (Columbia International Value Fund) S000010777 Member (Columbia Short Term Bond Fund) S000010799 Member (Columbia Marsico 21st Century Fund) S000010774 Member (Columbia LifeGoal Balanced Growth Portfolio) S000010785 Member (Columbia LifeGoal Growth Portfolio) S000010796 Member (Columbia LifeGoal Income and Growth Portfolio) S000010825 Member (Columbia Large Cap Index Fund) S000010826 Member (Columbia Mid Cap Index Fund) S000010827 Member (Columbia Small Cap Index Fund) AAAA Member BBBB Member CCCC Member DDDD Member EEEE Member FFFF Member GGGG Member HHHH Member IIII Member JJJJ Member KKKK Member LLLL Member MMMM Member NNNN Member OOOO Member PPPP Member QQQQ Member C000122571 Member Class R5 Shares C000029803 Member Class Z Shares C000029860 Member Class A Shares C000122581 Member Class R4 Shares C000122582 Member Class R5 Shares C000122590 Member Class R4 Shares C000122591 Member Class R5 Shares C000029903 Member Class Z Shares C000029850 Member Class A Shares C000122576 Member Class R4 Shares C000122577 Member Class R5 Shares C000029837 Member Class A Shares C000122574 Member Class R4 Shares C000122575 Member Class R5 Shares C000122583 Member Class R5 Shares C000029868 Member Class Z Shares C000029904 Member Class A Shares C000122592 Member Class R4 Shares C000122570 Member Class R5 Shares C000029795 Member Class Z Shares C000029874 Member Class A Shares C000122586 Member Class R4 Shares C000029855 Member Class A Shares C000122578 Member Class R4 Shares C000122579 Member Class R5 Shares C000122580 Member Class Y Shares C000029895 Member Class A Shares C000122588 Member Class R4 Shares C000122589 Member Class R5 Shares C000122568 Member Class R4 Shares C000122569 Member Class R5 Shares C000029791 Member Class Z Shares C000029882 Member Class A Shares C000029775 Member Class A Shares C000121782 Member Class K Shares C000122566 Member Class R4 Shares C000122567 Member Class R5 Shares C000029820 Member Class A Shares C000122572 Member Class R4 Shares C000122573 Member Class R5 Shares C000029869 Member Class A Shares C000121783 Member Class K Shares C000122584 Member Class R4 Shares C000122585 Member Class R5 Shares C000122593 Member Class R5 Shares C000030053 Member Class Z Shares C000122594 Member Class R5 Shares C000030055 Member Class Z Shares C000030056 Member Class A Shares C000122595 Member Class R5 Shares Benchmrk021AAAA Member Barclays California 3-15 Year Blend Municipal Bond Index (reflects no deductions for fees, expenses or taxes) (benchmark performance is as of August 31, 2002) Benchmrk018AAAA Member Barclays 3-15 Year Blend Municipal Bond Index (reflects no deductions for fees, expenses or taxes) Returnb4txBBBB Member returns before taxes (without sales charges) Benchmrk068BBBB Member BofAML All Convertibles All Qualities Index (reflects no deductions for fees, expenses or taxes) Returnb4txCCCC Member returns before taxes (without sales charges) Benchmrk083CCCC Member MSCI EAFE Value Index (Net) (reflects reinvested dividends net of withholding taxes but reflects no deductions for fees, expenses or other taxes) Benchmrk104DDDD Member S&P 500® Index (reflects no deductions for fees, expenses or taxes) Benchmrk104EEEE Member S&P 500® Index (reflects no deductions for fees, expenses or taxes) Benchmrk104FFFF Member S&P 500® Index (reflects no deductions for fees, expenses or taxes) Returnb4txFFFF Member returns before taxes (without sales charges) Benchmrk020FFFF Member Barclays Aggregate Bond Index (reflects no deductions for fees, expenses or taxes) Returnb4txGGGG Member returns before taxes (without sales charges) Benchmrk099GGGG Member Russell 3000 Index (reflects no deductions for fees, expenses or taxes) Benchmrk104HHHH Member S&P 500® Index (reflects no deductions for fees, expenses or taxes) Returnb4txHHHH Member returns before taxes (without sales charges) Benchmrk104IIII Member S&P 500® Index (reflects no deductions for fees, expenses or taxes) Returnb4txIIII Member returns before taxes (without sales charges) Returnb4txJJJJ Member returns before taxes (without sales charges) Benchmrk081JJJJ Member MSCI EAFE Index (Net) (reflects reinvested dividends net of withholding taxes but reflects no deductions for fees, expenses or other taxes) Benchmrk108KKKK Member S&P MidCap 400® Index (reflects no deductions for fees, expenses or taxes) Returnb4txLLLL Member returns before taxes (without sales charges) Benchmrk103LLLL Member Russell Midcap Value Index (reflects no deductions for fees, expenses or taxes) Benchmrk081MMMM Member MSCI EAFE Index (Net) (reflects reinvested dividends net of withholding taxes but reflects no deductions for fees, expenses or other taxes) Benchmrk014NNNN Member Barclays 1-3 Year Government/Credit Index (reflects no deductions for fees, expenses or taxes) bench2011072701OOOO Member Barclays 1-3 Year Municipal Bond Index (reflects no deductions for fees, expenses or taxes) Benchmrk110PPPP Member S&P SmallCap 600 Index (reflects no deductions for fees, expenses or taxes) Returnb4txQQQQ Member returns before taxes (without sales charges) Benchmrk094QQQQ Member Russell 2000 Value Index (reflects no deductions for fees, expenses or taxes)