Objective, Primary [Text Block]

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Risk/Return [Heading]

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Summary of the Fund

Objective [Heading]

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Investment Objective

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Columbia Large Cap Index Fund (the Fund) seeks total return before fees and expenses that corresponds to the total return of the Standard & Poor’s (S&P) 500^® Index.

Expense [Heading]

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Fees and Expenses of the Fund

Expense Narrative [Text Block]

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This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.

Shareholder Fees Caption [Text]

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Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

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Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading]

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Portfolio Turnover

Portfolio Turnover [Text Block]

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The Fund may pay transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 9% of the average value of its portfolio.

Portfolio Turnover, Rate

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9.00%

Expense Example [Heading]

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Example

Expense Example Narrative [Text Block]

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The following 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 illustrates the hypothetical expenses that you would incur over the time periods indicated, and assumes that:

■	you invest $10,000 in the applicable class of Fund shares for the periods indicated,
■	your investment has a 5% return each year, and
■	the Fund’s total annual operating expenses remain the same as shown in the Annual Fund Operating Expenses table above.

Although your actual costs may be higher or lower, based on the assumptions listed above, your costs would be:

Strategy [Heading]

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Principal Investment Strategies

Strategy Narrative [Text Block]

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Under normal circumstances, the Fund invests at least 80% of its net assets (including the amount of any borrowings for investment purposes) in common stocks that comprise the S&P 500 Index (the Index).

The Fund may invest in derivatives, such as futures (including equity index futures), for cash equitization purposes.

Different common stocks have different weightings in the Index, depending on the amount of stock outstanding and the stock’s current price. In seeking to match the performance of the Index, Columbia Management Investment Advisers, LLC (the Investment Manager) attempts to allocate the Fund’s assets among common stocks in approximately the same weightings as the Index. This is referred to as a passive or indexing approach to investing.

As a result of the Fund’s indexing approach to investing, the Fund will typically emphasize within the portfolio those economic sectors emphasized by the Index, such as the information technology sector. The Fund may buy shares of Ameriprise Financial, Inc., an affiliate of the Investment Manager, which is currently included in the Index, subject to certain restrictions.

The Fund attempts to achieve at least a 95% correlation between the performance of the Index and the Fund’s investment results, before fees and expenses.

Risk [Heading]

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Principal Risks

Bar Chart and Performance Table [Heading]

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An investment in the Fund involves risks, including Correlation/Tracking Error Risk, Passive Investment Risk, Large-Cap Stock Risk, and Market Risk, among others. Descriptions of these and other principal risks of investing in the Fund are provided below. There is no assurance that the Fund will achieve its investment objective and you may lose money. The value of the Fund’s holdings may decline, and the Fund’s net asset value (NAV) and share price may go down. 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. The significance of any specific risk to an investment in the Fund will vary over time depending on the composition of the Fund's portfolio, market conditions, and other factors. You should read all of the risk information below carefully, because any one or more of these risks may result in losses to the Fund.

Correlation/Tracking Error Risk. The Fund’s value will generally decline when the performance of the securities within the Index declines. A number of factors may affect the Fund’s ability to achieve a high degree of correlation with the Index, and there is no guarantee that the Fund will achieve a high degree of correlation. Failure to achieve a high degree of correlation may prevent the Fund from achieving its investment objective. In addition, the Fund bears management and other expenses and transaction costs in trading securities or other instruments, which the Index does not bear. The Fund, unlike the Index, is subject to regulatory requirements that can limit the Fund’s investments relative to what the Index can hold. Accordingly, the Fund’s performance will likely fail to match the performance of the Index, after taking expenses into account, as well as regulatory limitations. It is not possible to invest directly in an index.

Derivatives Risk. Derivatives may involve significant risks. Derivatives are financial instruments with a value in relation to, or derived from, the value of an underlying asset(s) or other reference, such as an index, rate or other economic indicator (each an underlying reference). Derivatives may include those that are privately placed or otherwise exempt from SEC registration, including certain Rule 144A eligible securities. Derivatives could result in Fund losses if the underlying reference does not perform as anticipated. Use of derivatives is a highly specialized activity that can involve investment techniques, risks, and tax planning different from those associated with more traditional investment instruments. The Fund’s derivatives strategy may not be successful and use of certain derivatives could result in substantial, potentially unlimited, losses to the Fund regardless of the Fund’s actual investment. A relatively small movement in the price, rate or other economic indicator associated with the underlying reference may result in substantial losses for the Fund. Derivatives may be more volatile than other types of investments. The value of derivatives may be influenced by a variety of factors, including national and international political and economic developments. Potential changes to the regulation of the derivatives markets may make derivatives more costly, may limit the market for derivatives, or may otherwise adversely affect the value or

performance of derivatives. Derivatives can increase the Fund’s risk exposure to underlying references and their attendant risks, such as credit risk, market risk, foreign currency risk and interest rate risk, while exposing the Fund to correlation risk, counterparty risk, hedging risk, inflation risk, leverage risk, liquidity risk, pricing risk and volatility risk.

Derivatives Risk – Futures Contracts Risk. A futures contract is an exchange-traded derivative transaction between two parties in which a buyer (holding the “long” position) agrees to pay a fixed price (or rate) at a specified future date for delivery of an underlying reference from a seller (holding the “short” position). The seller hopes that the market price on the delivery date is less than the agreed upon price, while the buyer hopes for the contrary. Certain futures contract markets are highly volatile, and futures contracts may be illiquid. Futures exchanges may limit fluctuations in futures contract prices by imposing a maximum permissible daily price movement. The Fund may be disadvantaged if it is prohibited from executing a trade outside the daily permissible price movement. At or prior to maturity of a futures contract, the Fund may enter into an offsetting contract and may incur a loss to the extent there has been adverse movement in futures contract prices. The liquidity of the futures markets depends on participants entering into offsetting transactions rather than making or taking delivery. To the extent participants make or take delivery, liquidity in the futures market could be reduced. Because of the low margin deposits normally required in futures trading, it is possible that the Fund may employ a high degree of leverage in the portfolio. As a result, a relatively small price movement in a futures contract may result in substantial losses to the Fund, exceeding the amount of the margin paid. For certain types of futures contracts, losses are potentially unlimited. Futures markets are highly volatile and the use of futures may increase the volatility of the Fund’s NAV. Futures contracts executed (if any) on foreign exchanges may not provide the same protection as U.S. exchanges. Futures contracts can increase the Fund’s risk exposure to underlying references and their attendant risks, such as credit risk, market risk, foreign currency risk, and interest rate risk, while also exposing the Fund to correlation risk, counterparty risk, hedging risk, inflation risk, leverage risk, liquidity risk, pricing risk and volatility risk.

Issuer Risk. An issuer in which the Fund invests or to which it has exposure may perform poorly or below expectations, and the value of its securities may therefore decline, which may negatively affect the Fund’s performance. Underperformance of an issuer may be caused by poor management decisions, competitive pressures, breakthroughs in technology, reliance on suppliers, labor problems or shortages, corporate restructurings, fraudulent disclosures, natural disasters, military confrontations and actions, war, other conflicts, terrorism, disease/virus outbreaks, epidemics or other events, conditions and factors which may impair the value of an investment in the Fund.

■

Large-Cap Stock Risk. Investments in larger, more established companies (larger companies) may involve certain risks associated with their larger size. For instance, larger companies may be less able to respond quickly to new competitive challenges, such as changes in consumer tastes or innovation from smaller competitors. Also, larger companies are sometimes less able to achieve as high growth rates as successful smaller companies, especially during extended periods of economic expansion.

Market Risk. The Fund may incur losses due to declines in the value of one or more securities in which it invests. These declines may be due to factors affecting a particular issuer, or the result of, among other things, political, regulatory, market, economic or social developments affecting the relevant market(s) more generally. In addition, turbulence in financial markets and reduced liquidity in equity, credit and/or fixed income markets may negatively affect many issuers, which could adversely affect the Fund’s ability to price or value hard-to-value assets in thinly traded and closed markets and could cause significant redemptions and operational challenges. Global economies and financial markets are increasingly interconnected, and conditions and events in one country, region or financial market may adversely impact issuers in a different country, region or financial market. These risks may be magnified if certain events or developments adversely interrupt the global supply chain; in these and other circumstances, such risks might affect companies worldwide. As a result, local, regional or global events such as terrorism, war, other conflicts, natural disasters, disease/virus outbreaks and epidemics or other public health issues, recessions, depressions or other events – or the potential for such events – could have a significant negative impact on global economic and market conditions.

Passive Investment Risk. The Fund is not actively managed and may be affected by a general decline in market segments related to its Index’s investment exposures. The Fund invests in securities or instruments included in, or believed by the portfolio managers to be representative of, the Index regardless of their investment merits. The Fund does not seek temporary defensive positions when markets decline or appear overvalued.

Sector Risk. At times, the Fund may have a significant portion of its assets invested in securities of companies conducting business in a related group of industries within one or more economic sectors, including the information technology sector. The Fund generally concentrates its investments in issuers conducting business in a related group of industries to approximately the same extent as the Index. Companies in the same sector may be similarly affected by economic, regulatory, political or market events or conditions, which may make the Fund more vulnerable to unfavorable developments in that group of industries or economic sector than funds that invest more broadly. Generally, the more broadly the Fund invests, the more it spreads risk and potentially reduces the risks of loss and volatility.

■

Information Technology Sector. The Fund is more susceptible to the particular risks that may affect companies in the information technology sector than if it were invested in a wider variety of companies in unrelated sectors. Companies in the information technology sector are subject to certain risks, including the risk that new services, equipment or technologies will not be accepted by consumers and businesses or will become rapidly obsolete. Performance of such companies may be affected by factors including obtaining and protecting patents (or the failure to do so) and significant competitive pressures, including aggressive pricing of their products or services, new market entrants, competition for market share and short product cycles due to an accelerated rate of technological developments. Such competitive pressures may lead to limited earnings and/or falling profit margins. As a result, the value of their securities may fall or fail to rise. In addition, many information technology sector companies have limited operating histories and prices of these companies’ securities historically have been more volatile than other securities, especially over the short term. Some companies in the information technology sector are facing increased government and regulatory scrutiny and may be subject to adverse government or regulatory action, which could negatively impact the value of their securities.

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Performance Information

Performance Narrative [Text Block]

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The following bar chart and table show you how the Fund has performed in the past, and can help you understand the risks of investing in the Fund. The bar chart shows how the Fund’s Class A share performance has varied for each full calendar year shown. The table below the bar chart compares the Fund’s returns for the periods shown with a broad measure of market performance.

The performance of one or more share classes shown in the table below begins before the indicated inception date for such share class. The returns shown for each such share class include the returns of the Fund’s Class Inst shares for periods prior to its inception date.

Except for differences in annual returns resulting from differences in expenses and sales charges (where applicable), the share classes of the Fund would have substantially similar annual returns because all share classes of the Fund invest in the same portfolio of securities.

The after-tax returns shown in the Average Annual Total Returns table below are calculated using the highest historical individual U.S. federal marginal income tax rates in effect during the period indicated in the table and do not reflect the impact of state, local or foreign taxes. Your actual after-tax returns will depend on your personal tax situation and may differ from those shown in the table. In addition, the after-tax returns shown in the table do not apply to shares held in tax-advantaged accounts such as 401(k) plans or Individual Retirement Accounts (IRAs). The after-tax returns are shown only for Class A shares and will vary for other share classes. Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares.

The Fund’s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future. Updated performance information can be obtained by calling toll-free 800.345.6611 or visiting columbiathreadneedleus.com.

Performance Information Illustrates Variability of Returns [Text]

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Performance Availability Phone [Text]

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800.345.6611

Performance Availability Website Address [Text]

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columbiathreadneedleus.com

Performance Past Does Not Indicate Future [Text]

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The Fund’s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future.

Bar Chart [Heading]

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Year by Year Total Return (%) as of December 31 Each Year*

Bar Chart Closing [Text Block]

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Best and Worst Quarterly Returns During the Period Shown in the Bar Chart Best 2nd Quarter 2020 20.41% Worst 1st Quarter 2020 -19.70%

Performance Table Heading

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Average Annual Total Returns (for periods ended December 31, 2022)

Performance Table Uses Highest Federal Rate

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Performance Table Not Relevant to Tax Deferred

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In addition, the after-tax returns shown in the table do not apply to shares held in tax-advantaged accounts such as 401(k) plans or Individual Retirement Accounts (IRAs).

Performance Table One Class of after Tax Shown [Text]

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The after-tax returns are shown only for Class A shares and will vary for other share classes.

Performance Table Explanation after Tax Higher

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Returns after taxes on distributions and sale of Fund shares are higher than before-tax returns for certain periods shown because they reflect the tax benefit of capital losses realized on the redemption of Fund shares.

Columbia Large Cap Index Fund | Risk Lose Money [Member]

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Columbia Large Cap Index Fund | Risk Not Insured Depository Institution [Member]

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There is no assurance that the Fund will achieve its investment objective and you may lose money.

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Columbia Large Cap Index Fund | Correlation Tracking Error Risk [Member]

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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.

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Columbia Large Cap Index Fund | Derivatives Risk [Member]

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Columbia Large Cap Index Fund | Derivatives Risk Futures Contracts Risk [Member]

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Columbia Large Cap Index Fund | Issuer Risk [Member]

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Columbia Large Cap Index Fund | Large Cap Stock Risk [Member]

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Columbia Large Cap Index Fund | Market Risk [Member]

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■

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Columbia Large Cap Index Fund | Passive Investment Risk [Member]

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Columbia Large Cap Index Fund | Sector Risk [Member]

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Columbia Large Cap Index Fund | Information Technology Sector [Member]

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Columbia Large Cap Index Fund | Class A

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■

Maximum sales charge (load) imposed on purchases (as a % of offering price)

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rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) imposed on redemptions (as a % of the lower of the original purchase price or current net asset value)

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.20%

rr_DistributionAndService12b1FeesOverAssets

0.25%

rr_OtherExpensesOverAssets

none

rr_ExpensesOverAssets

0.45%

rr_ExpenseExampleYear01

$ 46

rr_ExpenseExampleYear03

144

rr_ExpenseExampleYear05

252

rr_ExpenseExampleYear10

567

rr_ExpenseExampleNoRedemptionYear01

rr_ExpenseExampleNoRedemptionYear03

144

rr_ExpenseExampleNoRedemptionYear05

252

Year to Date Return, Label

rr_ExpenseExampleNoRedemptionYear10

$ 567

2013

rr_AnnualReturn2013

31.77%

^[1]

2014

rr_AnnualReturn2014

13.16%

^[1]

2015

rr_AnnualReturn2015

0.96%

^[1]

2016

rr_AnnualReturn2016

11.47%

^[1]

2017

rr_AnnualReturn2017

21.30%

^[1]

2018

rr_AnnualReturn2018

(4.85%)

^[1]

2019

rr_AnnualReturn2019

30.91%

^[1]

2020

rr_AnnualReturn2020

17.83%

^[1]

2021

rr_AnnualReturn2021

28.13%

^[1]

2022

rr_AnnualReturn2022

(18.40%)

^[1]

rr_YearToDateReturnLabel

Year to Date return

Bar Chart, Year to Date Return, Date

rr_BarChartYearToDateReturnDate

Mar. 31, 2023

Bar Chart, Year to Date Return

rr_BarChartYearToDateReturn

7.36%

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

Best

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Jun. 30, 2020

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

20.41%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

Worst

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Mar. 31, 2020

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(19.70%)

rr_AverageAnnualReturnYear01

(18.40%)

rr_AverageAnnualReturnYear05

8.95%

rr_AverageAnnualReturnYear10

12.06%

Columbia Large Cap Index Fund | Class Inst

rr_AverageAnnualReturnInceptionDate

Oct. 10, 1995

Maximum sales charge (load) imposed on purchases (as a % of offering price)

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rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) imposed on redemptions (as a % of the lower of the original purchase price or current net asset value)

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.20%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

none

rr_ExpensesOverAssets

0.20%

rr_ExpenseExampleYear01

$ 20

rr_ExpenseExampleYear03

rr_ExpenseExampleYear05

113

rr_ExpenseExampleYear10

255

rr_ExpenseExampleNoRedemptionYear01

rr_ExpenseExampleNoRedemptionYear03

rr_ExpenseExampleNoRedemptionYear05

113

rr_ExpenseExampleNoRedemptionYear10

$ 255

rr_AverageAnnualReturnYear01

(18.20%)

rr_AverageAnnualReturnYear05

9.22%

rr_AverageAnnualReturnYear10

12.35%

Columbia Large Cap Index Fund | Class Inst2

rr_AverageAnnualReturnInceptionDate

Dec. 15, 1993

Maximum sales charge (load) imposed on purchases (as a % of offering price)

rr_RiskReturnAbstract

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) imposed on redemptions (as a % of the lower of the original purchase price or current net asset value)

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.20%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

none

rr_ExpensesOverAssets

0.20%

rr_ExpenseExampleYear01

$ 20

rr_ExpenseExampleYear03

rr_ExpenseExampleYear05

113

rr_ExpenseExampleYear10

255

rr_ExpenseExampleNoRedemptionYear01

rr_ExpenseExampleNoRedemptionYear03

rr_ExpenseExampleNoRedemptionYear05

113

rr_ExpenseExampleNoRedemptionYear10

$ 255

rr_AverageAnnualReturnYear01

(18.20%)

rr_AverageAnnualReturnYear05

9.22%

rr_AverageAnnualReturnYear10

12.35%

Columbia Large Cap Index Fund | Class Inst3

rr_AverageAnnualReturnInceptionDate

Nov. 08, 2012

Maximum sales charge (load) imposed on purchases (as a % of offering price)

rr_RiskReturnAbstract

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum deferred sales charge (load) imposed on redemptions (as a % of the lower of the original purchase price or current net asset value)

rr_MaximumDeferredSalesChargeOverOther

none

rr_ManagementFeesOverAssets

0.20%

rr_DistributionAndService12b1FeesOverAssets

none

rr_OtherExpensesOverAssets

none

rr_ExpensesOverAssets

0.20%

rr_ExpenseExampleYear01

$ 20

rr_ExpenseExampleYear03

rr_ExpenseExampleYear05

113

rr_ExpenseExampleYear10

255

rr_ExpenseExampleNoRedemptionYear01

rr_ExpenseExampleNoRedemptionYear03

rr_ExpenseExampleNoRedemptionYear05

113

rr_ExpenseExampleNoRedemptionYear10

$ 255

rr_AverageAnnualReturnYear01

(18.22%)

rr_AverageAnnualReturnYear05

9.22%

rr_AverageAnnualReturnYear10

12.35%

Columbia Large Cap Index Fund | returns after taxes on distributions | Class A

rr_AverageAnnualReturnInceptionDate

Mar. 01, 2017

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

(20.67%)

rr_AverageAnnualReturnYear05

6.23%

rr_AverageAnnualReturnYear10

10.35%

Columbia Large Cap Index Fund | returns after taxes on distributions and sale of Fund shares | Class A

rr_AverageAnnualReturnInceptionDate

Oct. 10, 1995

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

(9.24%)

rr_AverageAnnualReturnYear05

6.94%

rr_AverageAnnualReturnYear10

9.89%

Columbia Large Cap Index Fund | S&P 500 Index (reflects no deductions for fees, expenses or taxes)

rr_AverageAnnualReturnInceptionDate

Oct. 10, 1995

rr_RiskReturnAbstract

rr_AverageAnnualReturnYear01

(18.11%)

rr_AverageAnnualReturnYear05

9.42%