Performance Management - Columbia Research Enhanced Real Estate ETF |
Dec. 31, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Bar Chart and Performance Table [Heading] | Performance Information |
| Performance Narrative [Text Block] | 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 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 the index the Fund seeks to track, which provides a broad measure of market performance, as well as two additional measures of performance for markets in which the Fund may invest. Effective March 31, 2025, the name of the Fund's tracked index, Beta Advantage® Lionstone Research Enhanced REIT Index (the Index's Former Name), changed to Beta Advantage® Research Enhanced REIT Index (the Index's New Name). 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). 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 800.426.3750 or visiting columbiathreadneedleus.com/etfs.
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| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance (before and after taxes) is no guarantee of how the Fund will perform in the future. |
| Performance Information Illustrates Variability of Returns [Text] | 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 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 the index the Fund seeks to track, which provides a broad measure of market performance, as well as two additional measures of performance for markets in which the Fund may invest. |
| Bar Chart [Heading] | Year by Year Total Return (%) as of December 31 Each Year |
| Bar Chart Closing [Text Block] | Best and Worst Quarterly Returns During the Period Shown in the Bar Chart Best 3rd Quarter 2024 16.84% Worst 4th Quarter 2024 -7.32% |
| Performance Table Heading | Average Annual Total Returns (for periods ended December 31, 2025) |
| Performance Table Market Index Changed | Effective March 31, 2025, the name of the Fund's tracked index, Beta Advantage® Lionstone Research Enhanced REIT Index (the Index's Former Name), changed to Beta Advantage® Research Enhanced REIT Index (the Index's New Name). |
| Performance Table Uses Highest Federal Rate | 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. |
| Performance Table Not Relevant to Tax Deferred | 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 Explanation after Tax Higher | 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. |
| Performance Availability Website Address [Text] | columbiathreadneedleus.com/etfs |
| Performance Availability Phone [Text] | 800.426.3750 |
| Columbia Research Enhanced Real Estate ETF | |
| Prospectus [Line Items] | |
| Highest Quarterly Return, Label [Optional Text] | Best |
| Highest Quarterly Return | 16.84% |
| Highest Quarterly Return, Date | Sep. 30, 2024 |
| Lowest Quarterly Return, Label [Optional Text] | Worst |
| Lowest Quarterly Return | (7.32%) |
| Lowest Quarterly Return, Date | Dec. 31, 2024 |