| Shareholder Report | 12 Months Ended |
| Jul. 31, 2024 USD ($) Holdings |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Columbia Funds Series Trust II |
| Entity Central Index Key | 0001352280 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jul. 31, 2024 |
| Columbia Limited Duration Credit Fund (Class A) | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Limited Duration Credit Fund |
| Class Name | Class A |
| Trading Symbol | ALDAX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Limited Duration Credit Fund (the Fund) for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature 1-800-345-6611. |
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period. |
| Additional Information Phone Number | 1-800-345-6611 |
| Additional Information Website | columbiathreadneedleus.com/resources/literature |
| Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment) Class Cost of a $10,000 investment Cost paid as a percentage of a $10,000 investment Class A $ 0.71 % |
| Expenses Paid, Amount | $ 73 |
| Expense Ratio, Percent | 0.71% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The performance of Class A shares for the period presented is shown in the Average Annual Total Returns table. Top Performance Contributors Credit allocation Credit selection Top Performance Detractors Credit selection |
| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future performance |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average Annual Total Returns (%) 1 year 5 years 10 years Class A (excluding sales charges) (a) 6.68 1.78 1.87 Class A (including sales charges) 3.52 1.16 1.56 Bloomberg U.S. 1-5 Year Corporate Index 6.94 2.05 2.31 Bloomberg U.S. Aggregate Bond Index 5.10 0.19 1.61 (a) Effective August 1, 2024, the Fund compares its performance to the Bloomberg U.S. Aggregate Bond Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests. |
| No Deduction of Taxes [Text Block] | Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares. |
| Updated Performance Information Location [Text Block] | Visit columbiathreadneedleus.com/investment-products/mutual-funds |
| Net Assets | $ 548,926,349 |
| Holdings Count | Holdings | 86 |
| Advisory Fees Paid, Amount | $ 2,325,191 |
| Investment Company, Portfolio Turnover | 96% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Fund net assets $ Total number of portfolio holdings 86 Management services fees $ Portfolio turnover for the reporting period 96% |
| Holdings [Text Block] | Graphical Representation of Fund The tables below show th e inv Bond ratings on Fund holdings are divided into categories ranging from highest to lowest credit quality, determined by using the middle rating of Moody’s, S&P and Fitch, after dropping the highest and lowest available ratings. When ratings are available from only two rating agencies, the lower rating is used. When a rating is available from only one rating agency, that rating is used. If a security is not rated by Moody's, S&P and Fitch, but has a rating by Kroll and/or DBRS, the same methodology is applied to those bonds that would otherwise be not rated. When a bond is not rated by any rating agency, it is designated as “Not rated.” Credit quality ratings assigned by a rating agency are subjective opinions, not statements of fact, and are subject to change, including daily. Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % Asset Categories Credit Quality |
| Credit Quality Explanation [Text Block] | Bond ratings on Fund holdings are divided into categories ranging from highest to lowest credit quality, determined by using the middle rating of Moody’s, S&P and Fitch, after dropping the highest and lowest available ratings. When ratings are available from only two rating agencies, the lower rating is used. When a rating is available from only one rating agency, that rating is used. If a security is not rated by Moody's, S&P and Fitch, but has a rating by Kroll and/or DBRS, the same methodology is applied to those bonds that would otherwise be not rated. When a bond is not rated by any rating agency, it is designated as “Not rated.” Credit quality ratings assigned by a rating agency are subjective opinions, not statements of fact, and are subject to change, including daily. |
| Largest Holdings [Text Block] | Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % |
| Material Fund Change [Text Block] | Certain Fund Changes This is a summary of certain changes to the Fund during the reporting period. For more complete information columbiathreadneedleus.com/resources/literature On June 27, 2024, the Fu |
| Summary of Change Legend [Text Block] | On June 27, 2024, the Fu |
| Updated Prospectus Phone Number | 1-800-345-6611 |
| Updated Prospectus Web Address | columbiathreadneedleus.com/resources/literature |
| Columbia Limited Duration Credit Fund (Advisor Class) | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Limited Duration Credit Fund |
| Class Name | Advisor Class |
| Trading Symbol | CDLRX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Limited Duration Credit Fund (the Fund) for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature 1-800-345-6611. |
| Additional Information Phone Number | 1-800-345-6611 |
| Additional Information Website | columbiathreadneedleus.com/resources/literature |
| Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment) Class Cost of a $10,000 investment Cost paid as a percentage of a $10,000 investment Advisor Class $ 0.46 % |
| Expenses Paid, Amount | $ 48 |
| Expense Ratio, Percent | 0.46% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The performance of Advisor Class shares for the period presented is shown in the Average Annual Total Returns table. Top Performance Contributors Credit allocation Credit selection consumer Top Performance Detractors Credit selection |
| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future performance. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average Annual Total Returns (%) 1 year 5 years 10 years Advisor Class (a) 6.94 2.06 2.14 Bloomberg U.S. 1-5 Year Corporate Index 6.94 2.05 2.31 Bloomberg U.S. Aggregate Bond Index 5.10 0.19 1.61 (a) Effective August 1, 2024, the Fund compares its performance to the Bloomberg U.S. Aggregate Bond Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests. |
| No Deduction of Taxes [Text Block] | Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares. |
| Updated Performance Information Location [Text Block] | Visit columbiathreadneedleus.com/investment-products/mutual-funds |
| Net Assets | $ 548,926,349 |
| Holdings Count | Holdings | 86 |
| Advisory Fees Paid, Amount | $ 2,325,191 |
| Investment Company, Portfolio Turnover | 96% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Fund net assets $ Total number of portfolio holdings 86 Management services fees $ Portfolio turnover for the reporting period 96% |
| Holdings [Text Block] | Graphical Representation of Fund The tables below show the investment make Bond ratings on Fund holdings are divided into categories ranging from highest to lowest credit quality, determined by using the middle rating of Moody’s, S&P and Fitch, after dropping the highest and lowest available ratings. When ratings are available from only two rating agencies, the lower rating is used. When a rating is available from only one rating agency, that rating is used. If a security is not rated by Moody's, S&P and Fitch, but has a rating by Kroll and/or DBRS, the same methodology is applied to those bonds that would otherwise be not rated. When a bond is not rated by any rating agency, it is designated as “Not rated.” Credit quality ratings assigned by a rating agency are subjective opinions, not statements of fact, and are subject to change, including daily. Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % Asset Categories Credit Quality |
| Credit Quality Explanation [Text Block] | Bond ratings on Fund holdings are divided into categories ranging from highest to lowest credit quality, determined by using the middle rating of Moody’s, S&P and Fitch, after dropping the highest and lowest available ratings. When ratings are available from only two rating agencies, the lower rating is used. When a rating is available from only one rating agency, that rating is used. If a security is not rated by Moody's, S&P and Fitch, but has a rating by Kroll and/or DBRS, the same methodology is applied to those bonds that would otherwise be not rated. When a bond is not rated by any rating agency, it is designated as “Not rated.” Credit quality ratings assigned by a rating agency are subjective opinions, not statements of fact, and are subject to change, including daily. |
| Largest Holdings [Text Block] | Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % |
| Columbia Limited Duration Credit Fund (Class C) | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Limited Duration Credit Fund |
| Class Name | Class C |
| Trading Symbol | RDCLX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Limited Duration Credit Fund (the Fund) for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature 1-800-345-6611. |
| Additional Information Phone Number | 1-800-345-6611 |
| Additional Information Website | columbiathreadneedleus.com/resources/literature |
| Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment) Class Cost of a $10,000 investment Cost paid as a percentage of a $10,000 investment Class C $ 1.46 % |
| Expenses Paid, Amount | $ 150 |
| Expense Ratio, Percent | 1.46% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The performance of Class C shares for the period presented is shown in the Average Annual Total Returns table. Top Performance Contributors Credit allocation Credit selection Top Performance Detractors Credit selection |
| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future performance. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average Annual Total Returns (%) 1 year 5 years 10 years Class C (excluding sales charges) (a) 5.88 1.02 1.11 Class C (including sales charges) 4.88 1.02 1.11 Bloomberg U.S. 1-5 Year Corporate Index 6.94 2.05 2.31 Bloomberg U.S. Aggregate Bond Index 5.10 0.19 1.61 (a) Effective August 1, 2024, the Fund compares its performance to the Bloomberg U.S. Aggregate Bond Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests. |
| No Deduction of Taxes [Text Block] | Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares. |
| Updated Performance Information Location [Text Block] | Visit columbiathreadneedleus.com/investment-products/mutual-funds |
| Net Assets | $ 548,926,349 |
| Holdings Count | Holdings | 86 |
| Advisory Fees Paid, Amount | $ 2,325,191 |
| Investment Company, Portfolio Turnover | 96% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Fund net assets $ Total number of portfolio holdings 86 Management services fees $ Portfolio turnover for the reporting period 96% |
| Holdings [Text Block] | Graphical Representation of Fund The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwis e not Bond ratings on Fund holdings are divided into categories ranging from highest to lowest credit quality, determined by using the middle rating of Moody’s, S&P and Fitch, after dropping the highest and lowest available ratings. When ratings are available from only two rating agencies, the lower rating is used. When a rating is available from only one rating agency, that rating is used. If a security is not rated by Moody's, S&P and Fitch, but has a rating by Kroll and/or DBRS, the same methodology is applied to those bonds that would otherwise be not rated. When a bond is not rated by any rating agency, it is designated as “Not rated.” Credit quality ratings assigned by a rating agency are subjective opinions, not statements of fact, and are subject to change, including daily. Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % Asset Categories Credit Quality |
| Credit Quality Explanation [Text Block] | Bond ratings on Fund holdings are divided into categories ranging from highest to lowest credit quality, determined by using the middle rating of Moody’s, S&P and Fitch, after dropping the highest and lowest available ratings. When ratings are available from only two rating agencies, the lower rating is used. When a rating is available from only one rating agency, that rating is used. If a security is not rated by Moody's, S&P and Fitch, but has a rating by Kroll and/or DBRS, the same methodology is applied to those bonds that would otherwise be not rated. When a bond is not rated by any rating agency, it is designated as “Not rated.” Credit quality ratings assigned by a rating agency are subjective opinions, not statements of fact, and are subject to change, including daily. |
| Largest Holdings [Text Block] | Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % |
| Columbia Limited Duration Credit Fund (Institutional Class) | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Limited Duration Credit Fund |
| Class Name | Institutional Class |
| Trading Symbol | CLDZX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Limited Duration Credit Fund (the Fund) for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature 1-800-345-6611. |
| Additional Information Phone Number | 1-800-345-6611 |
| Additional Information Website | columbiathreadneedleus.com/resources/literature |
| Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment) Class Cost of a $10,000 investment Cost paid as a percentage of a $10,000 investment Institutional Class $ 0.46 % |
| Expenses Paid, Amount | $ 48 |
| Expense Ratio, Percent | 0.46% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The performance of Institutional Class shares for the period presented is shown in the Average Annual Total Returns table. Top Performance Contributors Credit allocation over Credit selection Top Performance Detractors Credit selection |
| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future performance. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average Annual Total Returns (%) 1 year 5 years 10 years Institutional Class (a) 6.94 2.04 2.14 Bloomberg U.S. 1-5 Year Corporate Index 6.94 2.05 2.31 Bloomberg U.S. Aggregate Bond Index 5.10 0.19 1.61 (a) Effective August 1, 2024, the Fund compares its performance to the Bloomberg U.S. Aggregate Bond Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests. |
| No Deduction of Taxes [Text Block] | Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares. |
| Updated Performance Information Location [Text Block] | Visit columbiathreadneedleus.com/investment-products/mutual-funds |
| Net Assets | $ 548,926,349 |
| Holdings Count | Holdings | 86 |
| Advisory Fees Paid, Amount | $ 2,325,191 |
| Investment Company, Portfolio Turnover | 96% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Fund net assets $ Total number of portfolio holdings 86 Management services fees $ Portfolio turnover for the reporting period 96% |
| Holdings [Text Block] | Graphical Representation of Fund The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change. Bond ratings on Fund holdings are divided into categor ies rang Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % Asset Categories Credit Quality |
| Credit Quality Explanation [Text Block] | Bond ratings on Fund holdings are divided into categor ies rang |
| Largest Holdings [Text Block] | Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % |
| Columbia Limited Duration Credit Fund (Institutional 2 Class) | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Limited Duration Credit Fund |
| Class Name | Institutional 2 Class |
| Trading Symbol | CTLRX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Limited Duration Credit Fund (the Fund) for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature 1-800-345-6611. |
| Additional Information Phone Number | 1-800-345-6611 |
| Additional Information Website | columbiathreadneedleus.com/resources/literature |
| Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment) Class Cost of a $10,000 investment Cost paid as a percentage of a $10,000 investment Institutional 2 Class $ 0.41 % |
| Expenses Paid, Amount | $ 42 |
| Expense Ratio, Percent | 0.41% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The performance of Institutional 2 Class shares for the period presented is shown in the Average Annual Total Returns table. Top Performance Contributors Credit allocation Credit selection Top Performance Detractors Credit selection |
| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future performance. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average Annual Total Returns (%) 1 year 5 years 10 years Institutional 2 Class (a) 6.99 2.09 2.18 Bloomberg U.S. 1-5 Year Corporate Index 6.94 2.05 2.31 Bloomberg U.S. Aggregate Bond Index 5.10 0.19 1.61 (a) Effective August 1, 2024, the Fund compares its performance to the Bloomberg U.S. Aggregate Bond Index, a broad-based performance index that meets new regulatory requir ement |
| No Deduction of Taxes [Text Block] | Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares. |
| Updated Performance Information Location [Text Block] | Visit columbiathreadneedleus.com/investment-products/mutual-funds |
| Net Assets | $ 548,926,349 |
| Holdings Count | Holdings | 86 |
| Advisory Fees Paid, Amount | $ 2,325,191 |
| Investment Company, Portfolio Turnover | 96% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Fund net assets $ Total number of portfolio holdings 86 Management services fees $ Portfolio turnover for the reporting period 96% |
| Holdings [Text Block] | Graphical Representation of Fund The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change. Bond ratings on Fund holdings are divided into categories ranging from hi ghest to quality r Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % Asset Categories Credit Quality |
| Credit Quality Explanation [Text Block] | Bond ratings on Fund holdings are divided into categories ranging from hi ghest to quality r |
| Largest Holdings [Text Block] | Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % |
| Columbia Limited Duration Credit Fund (Institutional 3 Class) | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Limited Duration Credit Fund |
| Class Name | Institutional 3 Class |
| Trading Symbol | CLDYX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Limited Duration Credit Fund (the Fund) for the period of August 1, 2023 to July 31, 2024. |
| Shareholder Report Annual or Semi-Annual | annual shareholder report |
| Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature 1-800-345-6611. |
| Additional Information Phone Number | 1-800-345-6611 |
| Additional Information Website | columbiathreadneedleus.com/resources/literature |
| Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment) Class Cost of a $10,000 investment Cost paid as a percentage of a $10,000 investment Institutional 3 Class $ 0.36 % |
| Expenses Paid, Amount | $ 37 |
| Expense Ratio, Percent | 0.36% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The performance of Institutional 3 Class shares for the period presented is shown in the Average Annual Total Returns table. Top Performance Contributors Credit allocation edit Credit selection Top Performance Detractors Credit selection |
| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future performance. |
| Line Graph [Table Text Block] | |
| Average Annual Return [Table Text Block] | Average Annual Total Returns (%) 1 year 5 years 10 years Institutional 3 Class (a) 7.05 2.14 2.23 Bloomberg U.S. 1-5 Year Corporate Index 6.94 2.05 2.31 Bloomberg U.S. Aggregate Bond Index 5.10 0.19 1.61 (a) Effective August 1, 2024, the Fund compares its performance to the Bloomberg U.S. Aggregate Bond Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests. |
| No Deduction of Taxes [Text Block] | Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares. |
| Updated Performance Information Location [Text Block] | Visit columbiathreadneedleus.com/investment-products/mutual-funds |
| Net Assets | $ 548,926,349 |
| Holdings Count | Holdings | 86 |
| Advisory Fees Paid, Amount | $ 2,325,191 |
| Investment Company, Portfolio Turnover | 96% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Fund net assets $ Total number of portfolio holdings 86 Management services fees $ Portfolio turnover for the reporting period 96% |
| Holdings [Text Block] | Graphical Representation of Fund The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise no ted. Bond ratings on Fund holdings are divided into categories ranging from highest to lowest credit quality, determined by using the middle rating of Moody’s, S&P and Fitch, after dropping the highest and lowest available ratings. When ratings are available from only two rating agencies, the lower rating is used. When a rating is available from only one rating agency, that rating is used. If a security is not rated by Moody's, S&P and Fitch, but has a rating by Kroll and/or DBRS, the same methodology is applied to those bonds that would otherwise be not rated. When a bond is not rated by any rating agency, it is designated as “Not rated.” Credit quality ratings assigned by a rating agency are subjective opinions, not statements of fact, and are subject to change, including daily. Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % Asset Categories Credit Quality |
| Credit Quality Explanation [Text Block] | Bond ratings on Fund holdings are divided into categories ranging from highest to lowest credit quality, determined by using the middle rating of Moody’s, S&P and Fitch, after dropping the highest and lowest available ratings. When ratings are available from only two rating agencies, the lower rating is used. When a rating is available from only one rating agency, that rating is used. If a security is not rated by Moody's, S&P and Fitch, but has a rating by Kroll and/or DBRS, the same methodology is applied to those bonds that would otherwise be not rated. When a bond is not rated by any rating agency, it is designated as “Not rated.” Credit quality ratings assigned by a rating agency are subjective opinions, not statements of fact, and are subject to change, including daily. |
| Largest Holdings [Text Block] | Top Holdings Peachtree Corners Funding Trust 4.6 % Bank of America Corp. 4.4 % Bacardi Ltd. 3.7 % JPMorgan Chase & Co. 3.3 % U.S. Treasury 3.0 % Centene Corp. 2.7 % Principal Life Global Funding II 2.6 % Wells Fargo & Co. 2.3 % Goldman Sachs Group, Inc. (The) 2.2 % CenterPoint Energy, Inc. 2.1 % |
