| Form N-CSR Cover | 12 Months Ended |
| Aug. 31, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Columbia Funds Series Trust I |
| Entity Central Index Key | 0000773757 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Aug. 31, 2024 |
| Shareholder Report | 12 Months Ended |
| Aug. 31, 2024 USD ($) Holding | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSR |
| Amendment Flag | false |
| Registrant Name | Columbia Funds Series Trust I |
| Entity Central Index Key | 0000773757 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Aug. 31, 2024 |
| Columbia Emerging Markets Fund Class A | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Emerging Markets Fund |
| Class Name | Class A |
| Trading Symbol | EEMAX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Emerging Markets Fund (the Fund) for the period of September 1, 2023 to August 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 A $ 1.42 % |
| Expenses Paid, Amount | $ 149 |
| Expense Ratio, Percent | 1.42% |
| 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 Top Performance Contributors Stock selection and Allocations mining Individual holdings Top Performance Detractors Stock selection Allocations Individual holdings |
| 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) 9.77 1.76 1.95 Class A (including sales charges) 3.44 0.56 1.35 MSCI Emerging Markets Index (Net) 15.07 4.79 2.56 MSCI EAFE Index (Net) 19.40 8.61 5.20 |
| 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 | $ 1,115,762,572 |
| Holdings Count | Holding | 104 |
| Advisory Fees Paid, Amount | $ 12,176,489 |
| Investment Company, Portfolio Turnover | 44% |
| Additional Fund Statistics [Text Block] | Fund net assets $ Total number of portfolio holdings 104 Management services fees $ Portfolio turnover for the reporting period 44% |
| 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. Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % Equity Sector Allocation Geographic Allocation |
| Largest Holdings [Text Block] | Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % |
| Updated Prospectus Web Address | columbiathreadneedleus.com/investment-products/mutual-funds |
| Columbia Emerging Markets Fund Advisor Class | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Emerging Markets Fund |
| Class Name | Advisor Class |
| Trading Symbol | CEMHX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Emerging Markets Fund (the Fund) for the period of September 1, 2023 to August 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 $ 1.17 % |
| Expenses Paid, Amount | $ 123 |
| Expense Ratio, Percent | 1.17% |
| 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 Stock selection Allocations Individual holdings Top Performance Detractors Stock selection and Allocations Individual holdings based |
| 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 10.11 2.02 2.21 MSCI Emerging Markets Index (Net) 15.07 4.79 2.56 MSCI EAFE Index (Net) 19.40 8.61 5.20 |
| 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 | $ 1,115,762,572 |
| Holdings Count | Holding | 104 |
| Advisory Fees Paid, Amount | $ 12,176,489 |
| Investment Company, Portfolio Turnover | 44% |
| Additional Fund Statistics [Text Block] | Fund net assets $ Total number of portfolio holdings 104 Management services fees $ Portfolio turnover for the reporting period 44% |
| 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. Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % Equity Sector Allocation Geographic Allocation |
| Largest Holdings [Text Block] | Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % |
| Updated Prospectus Web Address | columbiathreadneedleus.com/investment-products/mutual-funds |
| Columbia Emerging Markets Fund Class C | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Emerging Markets Fund |
| Class Name | Class C |
| Trading Symbol | EEMCX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Emerging Markets Fund (the Fund) for the period of September 1, 2023 to August 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 $ 2.18 % |
| Expenses Paid, Amount | $ 227 |
| Expense Ratio, Percent | 2.18% |
| 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 Stock selection Allocations Individual holdings Top Performance Detractors Stock selection Allocations consumer Individual holdings |
| 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) 9.01 1.01 1.20 Class C (including sales charges) 8.01 1.01 1.20 MSCI Emerging Markets Index (Net) 15.07 4.79 2.56 MSCI EAFE Index (Net) 19.40 8.61 5.20 |
| 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 | $ 1,115,762,572 |
| Holdings Count | Holding | 104 |
| Advisory Fees Paid, Amount | $ 12,176,489 |
| Investment Company, Portfolio Turnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Fund net assets $ Total number of portfolio holdings 104 Management services fees $ Portfolio turnover for the reporting period 44% |
| Holdings [Text Block] | Graphical Representation of Fund The tables below show the investment makeup of the Fund represented as a percentage Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % Equity Sector Allocation Geographic Allocation |
| Largest Holdings [Text Block] | Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % |
| Updated Prospectus Web Address | columbiathreadneedleus.com/investment-products/mutual-funds |
| Columbia Emerging Markets Fund Institutional Class | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Emerging Markets Fund |
| Class Name | Institutional Class |
| Trading Symbol | UMEMX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Emerging Markets Fund (the Fund) for the period of September 1, 2023 to August 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 $ 1.17 % |
| Expenses Paid, Amount | $ 123 |
| Expense Ratio, Percent | 1.17% |
| 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 Stock selection Allocations materials Individual holdings Top Performance Detractors Stock selection Allocations leisure Individual holdings |
| 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 10.10 2.02 2.21 MSCI Emerging Markets Index (Net) 15.07 4.79 2.56 MSCI EAFE Index (Net) 19.40 8.61 5.20 |
| 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 | $ 1,115,762,572 |
| Holdings Count | Holding | 104 |
| Advisory Fees Paid, Amount | $ 12,176,489 |
| Investment Company, Portfolio Turnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Fund net assets $ Total number of portfolio holdings 104 Management services fees $ Portfolio turnover for the reporting period 44% |
| 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. Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % Equity Sector Allocation Geographic Allocation |
| Largest Holdings [Text Block] | Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % |
| Updated Prospectus Web Address | columbiathreadneedleus.com/investment-products/mutual-funds |
| Columbia Emerging Markets Fund Institutional 2 Class | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Emerging Markets Fund |
| Class Name | Institutional 2 Class |
| Trading Symbol | CEKRX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Emerging Markets Fund (the Fund) for the period of September 1, 2023 to August 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 $ 1.07 % |
| Expenses Paid, Amount | $ 112 |
| Expense Ratio, Percent | 1.07% |
| Factors Affecting Performance [Text Block] | Management's Discussion of Fund Performance The performance of Institutional 2 Class shares for the period Top Performance Contributors Stock selection Allocations Individual holdings manufacturer Top Performance Detractors Stock selection Allocations Individual holdings |
| 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 10.17 2.14 2.34 MSCI Emerging Markets Index (Net) 15.07 4.79 2.56 MSCI EAFE Index (Net) 19.40 8.61 5.20 |
| 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 | $ 1,115,762,572 |
| Holdings Count | Holding | 104 |
| Advisory Fees Paid, Amount | $ 12,176,489 |
| Investment Company, Portfolio Turnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Fund net assets $ Total number of portfolio holdings 104 Management services fees $ Portfolio turnover for the reporting period 44% |
| Holdings [Text Block] | Graphical Representation of Fund The tables below show the investment makeup of the Fund represented Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % Equity Sector Allocation Geographic Allocation |
| Largest Holdings [Text Block] | Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % |
| Updated Prospectus Web Address | columbiathreadneedleus.com/investment-products/mutual-funds |
| Columbia Emerging Markets Fund Institutional 3 Class | |
| Shareholder Report [Line Items] | |
| Fund Name | Columbia Emerging Markets Fund |
| Class Name | Institutional 3 Class |
| Trading Symbol | CEKYX |
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about Columbia Emerging Markets Fund (the Fund) for the period of September 1, 2023 to August 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 $ 1.03 % |
| Expenses Paid, Amount | $ 108 |
| Expense Ratio, Percent | 1.03% |
| 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 Stock selection electrical Allocations Individual holdings Top Performance Detractors Stock selection Allocations distribution Individual holdings |
| 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 10.29 2.18 2.39 MSCI Emerging Markets Index (Net) 15.07 4.79 2.56 MSCI EAFE Index (Net) 19.40 8.61 5.20 |
| 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 | $ 1,115,762,572 |
| Holdings Count | Holding | 104 |
| Advisory Fees Paid, Amount | $ 12,176,489 |
| Investment Company, Portfolio Turnover | 44% |
| Additional Fund Statistics [Text Block] | Key Fund Statistics Fund net assets $ Total number of portfolio holdings 104 Management services fees $ Portfolio turnover for the reporting period 44% |
| Holdings [Text Block] | Graphical Representation of Fund The tables below show the investment makeup of the Fund represented Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % Equity Sector Allocation Geographic Allocation |
| Largest Holdings [Text Block] | Top Holdings Taiwan Semiconductor Manufacturing Co., Ltd. 11.2 % Tencent Holdings Ltd. 5.2 % Samsung Electronics Co., Ltd. 5.1 % SK Hynix, Inc. 2.9 % PT Bank Central Asia Tbk 2.7 % ICICI Bank Ltd., ADR 2.5 % MercadoLibre, Inc. 2.3 % Larsen & Toubro Ltd. 2.1 % PT Bank Rakyat Indonesia Persero Tbk 1.9 % MediaTek, Inc. 1.8 % |
| Updated Prospectus Web Address | columbiathreadneedleus.com/investment-products/mutual-funds |
| Shareholder Report, Line Graph (Details) - USD ($) | 12 Months Ended | ||||||||||
| Aug. 31, 2024 | Aug. 31, 2023 | Aug. 31, 2022 | Aug. 31, 2021 | Aug. 31, 2020 | Aug. 31, 2019 | Aug. 31, 2018 | Aug. 31, 2017 | Aug. 31, 2016 | Aug. 31, 2015 | Aug. 31, 2014 | |
| Columbia Emerging Markets Fund Institutional 3 Class | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Institutional 3 Class | ||||||||||
| Account Value | $ 12,660 | $ 11,479 | $ 11,564 | $ 18,186 | $ 14,685 | $ 11,368 | $ 11,319 | $ 11,691 | $ 9,217 | $ 8,066 | $ 10,000 |
| Columbia Emerging Markets Fund Institutional 2 Class | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Institutional 2 Class | ||||||||||
| Account Value | $ 12,604 | 11,440 | 11,525 | 18,132 | 14,650 | 11,340 | 11,299 | 11,675 | 9,202 | 8,065 | 10,000 |
| Columbia Emerging Markets Fund Institutional Class | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Institutional Class | ||||||||||
| Account Value | $ 12,448 | 11,306 | 11,400 | 17,959 | 14,518 | 11,264 | 11,242 | 11,632 | 9,180 | 8,059 | 10,000 |
| Columbia Emerging Markets Fund Class C | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class C (including sales charges) | ||||||||||
| Account Value | $ 11,272 | 10,340 | 10,523 | 16,751 | 13,679 | 10,717 | 10,802 | 11,283 | 9,000 | 7,972 | 10,000 |
| Columbia Emerging Markets Fund Advisor Class | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Advisor Class | ||||||||||
| Account Value | $ 12,448 | 11,306 | 11,399 | 17,956 | 14,522 | 11,264 | 11,242 | 11,620 | 9,177 | 8,055 | 10,000 |
| Columbia Emerging Markets Fund Class A | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Class A (including sales charges) | ||||||||||
| Account Value | $ 11,435 | 10,417 | 10,523 | 16,626 | 13,474 | 10,481 | 10,481 | 10,870 | 8,605 | 7,571 | 9,423 |
| MSCI Emerging Markets Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI Emerging Markets Index (Net) | ||||||||||
| Account Value | $ 12,877 | 11,191 | 11,052 | 14,134 | 11,669 | 10,193 | 10,658 | 10,731 | 8,617 | 7,705 | 10,000 |
| MSCI EAFE Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | MSCI EAFE Index (Net) | ||||||||||
| Account Value | $ 16,596 | $ 13,899 | $ 11,787 | $ 14,697 | $ 11,653 | $ 10,980 | $ 11,349 | $ 10,872 | $ 9,242 | $ 9,253 | $ 10,000 |
| Shareholder Report, Average Annual Return (Details) | 12 Months Ended | 60 Months Ended | 120 Months Ended |
| Aug. 31, 2024 | Aug. 31, 2024 | Aug. 31, 2024 | |
| Columbia Emerging Markets Fund Institutional 3 Class | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Institutional 3 Class | ||
| Average Annual Return, Percent | 10.29% | 2.18% | 2.39% |
| Columbia Emerging Markets Fund Institutional 2 Class | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Institutional 2 Class | ||
| Average Annual Return, Percent | 10.17% | 2.14% | 2.34% |
| Columbia Emerging Markets Fund Institutional Class | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Institutional Class | ||
| Average Annual Return, Percent | 10.10% | 2.02% | 2.21% |
| Columbia Emerging Markets Fund Class C | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class C (including sales charges) | ||
| Average Annual Return, Percent | 8.01% | 1.01% | 1.20% |
| Columbia Emerging Markets Fund Advisor Class | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Advisor Class | ||
| Average Annual Return, Percent | 10.11% | 2.02% | 2.21% |
| Columbia Emerging Markets Fund Class A | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class A (including sales charges) | ||
| Average Annual Return, Percent | 3.44% | 0.56% | 1.35% |
| Without Sales Load [Member] | Columbia Emerging Markets Fund Class C | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class C (excluding sales charges) | ||
| Average Annual Return, Percent | 9.01% | 1.01% | 1.20% |
| Without Sales Load [Member] | Columbia Emerging Markets Fund Class A | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | Class A (excluding sales charges) | ||
| Average Annual Return, Percent | 9.77% | 1.76% | 1.95% |
| MSCI Emerging Markets Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI Emerging Markets Index (Net) | ||
| Average Annual Return, Percent | 15.07% | 4.79% | 2.56% |
| MSCI EAFE Index [Member] | |||
| Average Annual Return [Line Items] | |||
| Line Graph and Table Measure Name | MSCI EAFE Index (Net) | ||
| Average Annual Return, Percent | 19.40% | 8.61% | 5.20% |
| Shareholder Report, Holdings (Details) | Aug. 31, 2024 |
| Columbia Emerging Markets Fund Class A | Taiwan Semiconductor Manufacturing Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| Columbia Emerging Markets Fund Class A | Tencent Holdings Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Columbia Emerging Markets Fund Class A | Samsung Electronics Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| Columbia Emerging Markets Fund Class A | SK Hynix, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Columbia Emerging Markets Fund Class A | PT Bank Central Asia Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| Columbia Emerging Markets Fund Class A | ICICI Bank Ltd., ADR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| Columbia Emerging Markets Fund Class A | MercadoLibre, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Columbia Emerging Markets Fund Class A | Larsen & Toubro Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Class A | PT Bank Rakyat Indonesia Persero Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Columbia Emerging Markets Fund Class A | MediaTek, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| Columbia Emerging Markets Fund Class A | Information Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.20% |
| Columbia Emerging Markets Fund Class A | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.20% |
| Columbia Emerging Markets Fund Class A | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12% |
| Columbia Emerging Markets Fund Class A | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Columbia Emerging Markets Fund Class A | Communications Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| Columbia Emerging Markets Fund Class A | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| Columbia Emerging Markets Fund Class A | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| Columbia Emerging Markets Fund Class A | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Columbia Emerging Markets Fund Class A | Real Estate Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Columbia Emerging Markets Fund Class A | Materials Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Class A | Unclassified Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Class A | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.20% |
| Columbia Emerging Markets Fund Class A | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.60% |
| Columbia Emerging Markets Fund Class A | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.10% |
| Columbia Emerging Markets Fund Class A | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Columbia Emerging Markets Fund Class A | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.90% |
| Columbia Emerging Markets Fund Class A | INDONESIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| Columbia Emerging Markets Fund Class A | GREECE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| Columbia Emerging Markets Fund Class A | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Columbia Emerging Markets Fund Class A | other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Columbia Emerging Markets Fund Class A | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Class A | SOUTH AFRICA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| Columbia Emerging Markets Fund Advisor Class | Taiwan Semiconductor Manufacturing Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| Columbia Emerging Markets Fund Advisor Class | Tencent Holdings Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Columbia Emerging Markets Fund Advisor Class | Samsung Electronics Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| Columbia Emerging Markets Fund Advisor Class | SK Hynix, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Columbia Emerging Markets Fund Advisor Class | PT Bank Central Asia Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| Columbia Emerging Markets Fund Advisor Class | ICICI Bank Ltd., ADR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| Columbia Emerging Markets Fund Advisor Class | MercadoLibre, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Columbia Emerging Markets Fund Advisor Class | Larsen & Toubro Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Advisor Class | PT Bank Rakyat Indonesia Persero Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Columbia Emerging Markets Fund Advisor Class | MediaTek, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| Columbia Emerging Markets Fund Advisor Class | Information Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.20% |
| Columbia Emerging Markets Fund Advisor Class | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.20% |
| Columbia Emerging Markets Fund Advisor Class | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12% |
| Columbia Emerging Markets Fund Advisor Class | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Columbia Emerging Markets Fund Advisor Class | Communications Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| Columbia Emerging Markets Fund Advisor Class | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| Columbia Emerging Markets Fund Advisor Class | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| Columbia Emerging Markets Fund Advisor Class | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Columbia Emerging Markets Fund Advisor Class | Real Estate Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Columbia Emerging Markets Fund Advisor Class | Materials Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Advisor Class | Unclassified Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Advisor Class | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.20% |
| Columbia Emerging Markets Fund Advisor Class | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.60% |
| Columbia Emerging Markets Fund Advisor Class | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.10% |
| Columbia Emerging Markets Fund Advisor Class | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Columbia Emerging Markets Fund Advisor Class | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.90% |
| Columbia Emerging Markets Fund Advisor Class | INDONESIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| Columbia Emerging Markets Fund Advisor Class | GREECE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| Columbia Emerging Markets Fund Advisor Class | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Columbia Emerging Markets Fund Advisor Class | other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Columbia Emerging Markets Fund Advisor Class | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Advisor Class | SOUTH AFRICA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| Columbia Emerging Markets Fund Class C | Taiwan Semiconductor Manufacturing Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| Columbia Emerging Markets Fund Class C | Tencent Holdings Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Columbia Emerging Markets Fund Class C | Samsung Electronics Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| Columbia Emerging Markets Fund Class C | SK Hynix, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Columbia Emerging Markets Fund Class C | PT Bank Central Asia Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| Columbia Emerging Markets Fund Class C | ICICI Bank Ltd., ADR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| Columbia Emerging Markets Fund Class C | MercadoLibre, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Columbia Emerging Markets Fund Class C | Larsen & Toubro Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Class C | PT Bank Rakyat Indonesia Persero Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Columbia Emerging Markets Fund Class C | MediaTek, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| Columbia Emerging Markets Fund Class C | Information Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.20% |
| Columbia Emerging Markets Fund Class C | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.20% |
| Columbia Emerging Markets Fund Class C | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12% |
| Columbia Emerging Markets Fund Class C | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Columbia Emerging Markets Fund Class C | Communications Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| Columbia Emerging Markets Fund Class C | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| Columbia Emerging Markets Fund Class C | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| Columbia Emerging Markets Fund Class C | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Columbia Emerging Markets Fund Class C | Real Estate Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Columbia Emerging Markets Fund Class C | Materials Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Class C | Unclassified Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Class C | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.20% |
| Columbia Emerging Markets Fund Class C | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.60% |
| Columbia Emerging Markets Fund Class C | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.10% |
| Columbia Emerging Markets Fund Class C | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Columbia Emerging Markets Fund Class C | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.90% |
| Columbia Emerging Markets Fund Class C | INDONESIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| Columbia Emerging Markets Fund Class C | GREECE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| Columbia Emerging Markets Fund Class C | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Columbia Emerging Markets Fund Class C | other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Columbia Emerging Markets Fund Class C | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Class C | SOUTH AFRICA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| Columbia Emerging Markets Fund Institutional Class | Taiwan Semiconductor Manufacturing Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| Columbia Emerging Markets Fund Institutional Class | Tencent Holdings Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Columbia Emerging Markets Fund Institutional Class | Samsung Electronics Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| Columbia Emerging Markets Fund Institutional Class | SK Hynix, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Columbia Emerging Markets Fund Institutional Class | PT Bank Central Asia Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| Columbia Emerging Markets Fund Institutional Class | ICICI Bank Ltd., ADR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| Columbia Emerging Markets Fund Institutional Class | MercadoLibre, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Columbia Emerging Markets Fund Institutional Class | Larsen & Toubro Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Institutional Class | PT Bank Rakyat Indonesia Persero Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Columbia Emerging Markets Fund Institutional Class | MediaTek, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| Columbia Emerging Markets Fund Institutional Class | Information Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.20% |
| Columbia Emerging Markets Fund Institutional Class | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.20% |
| Columbia Emerging Markets Fund Institutional Class | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12% |
| Columbia Emerging Markets Fund Institutional Class | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Columbia Emerging Markets Fund Institutional Class | Communications Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| Columbia Emerging Markets Fund Institutional Class | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| Columbia Emerging Markets Fund Institutional Class | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| Columbia Emerging Markets Fund Institutional Class | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Columbia Emerging Markets Fund Institutional Class | Real Estate Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Columbia Emerging Markets Fund Institutional Class | Materials Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Institutional Class | Unclassified Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Institutional Class | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.20% |
| Columbia Emerging Markets Fund Institutional Class | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.60% |
| Columbia Emerging Markets Fund Institutional Class | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.10% |
| Columbia Emerging Markets Fund Institutional Class | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Columbia Emerging Markets Fund Institutional Class | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.90% |
| Columbia Emerging Markets Fund Institutional Class | INDONESIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| Columbia Emerging Markets Fund Institutional Class | GREECE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| Columbia Emerging Markets Fund Institutional Class | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Columbia Emerging Markets Fund Institutional Class | other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Columbia Emerging Markets Fund Institutional Class | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Institutional Class | SOUTH AFRICA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| Columbia Emerging Markets Fund Institutional 2 Class | Taiwan Semiconductor Manufacturing Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| Columbia Emerging Markets Fund Institutional 2 Class | Tencent Holdings Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Columbia Emerging Markets Fund Institutional 2 Class | Samsung Electronics Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| Columbia Emerging Markets Fund Institutional 2 Class | SK Hynix, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Columbia Emerging Markets Fund Institutional 2 Class | PT Bank Central Asia Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| Columbia Emerging Markets Fund Institutional 2 Class | ICICI Bank Ltd., ADR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| Columbia Emerging Markets Fund Institutional 2 Class | MercadoLibre, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Columbia Emerging Markets Fund Institutional 2 Class | Larsen & Toubro Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Institutional 2 Class | PT Bank Rakyat Indonesia Persero Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Columbia Emerging Markets Fund Institutional 2 Class | MediaTek, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| Columbia Emerging Markets Fund Institutional 2 Class | Information Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.20% |
| Columbia Emerging Markets Fund Institutional 2 Class | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.20% |
| Columbia Emerging Markets Fund Institutional 2 Class | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12% |
| Columbia Emerging Markets Fund Institutional 2 Class | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Columbia Emerging Markets Fund Institutional 2 Class | Communications Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| Columbia Emerging Markets Fund Institutional 2 Class | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| Columbia Emerging Markets Fund Institutional 2 Class | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| Columbia Emerging Markets Fund Institutional 2 Class | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Columbia Emerging Markets Fund Institutional 2 Class | Real Estate Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Columbia Emerging Markets Fund Institutional 2 Class | Materials Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Institutional 2 Class | Unclassified Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Institutional 2 Class | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.20% |
| Columbia Emerging Markets Fund Institutional 2 Class | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.60% |
| Columbia Emerging Markets Fund Institutional 2 Class | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.10% |
| Columbia Emerging Markets Fund Institutional 2 Class | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Columbia Emerging Markets Fund Institutional 2 Class | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.90% |
| Columbia Emerging Markets Fund Institutional 2 Class | INDONESIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| Columbia Emerging Markets Fund Institutional 2 Class | GREECE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| Columbia Emerging Markets Fund Institutional 2 Class | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Columbia Emerging Markets Fund Institutional 2 Class | other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Columbia Emerging Markets Fund Institutional 2 Class | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Institutional 2 Class | SOUTH AFRICA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
| Columbia Emerging Markets Fund Institutional 3 Class | Taiwan Semiconductor Manufacturing Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.20% |
| Columbia Emerging Markets Fund Institutional 3 Class | Tencent Holdings Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.20% |
| Columbia Emerging Markets Fund Institutional 3 Class | Samsung Electronics Co., Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5.10% |
| Columbia Emerging Markets Fund Institutional 3 Class | SK Hynix, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.90% |
| Columbia Emerging Markets Fund Institutional 3 Class | PT Bank Central Asia Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.70% |
| Columbia Emerging Markets Fund Institutional 3 Class | ICICI Bank Ltd., ADR [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.50% |
| Columbia Emerging Markets Fund Institutional 3 Class | MercadoLibre, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.30% |
| Columbia Emerging Markets Fund Institutional 3 Class | Larsen & Toubro Ltd. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Institutional 3 Class | PT Bank Rakyat Indonesia Persero Tbk [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.90% |
| Columbia Emerging Markets Fund Institutional 3 Class | MediaTek, Inc. [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.80% |
| Columbia Emerging Markets Fund Institutional 3 Class | Information Technology Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 29.20% |
| Columbia Emerging Markets Fund Institutional 3 Class | Financial Services Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 23.20% |
| Columbia Emerging Markets Fund Institutional 3 Class | Consumer Discretionary Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 12% |
| Columbia Emerging Markets Fund Institutional 3 Class | Industrial Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 9.90% |
| Columbia Emerging Markets Fund Institutional 3 Class | Communications Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 7.60% |
| Columbia Emerging Markets Fund Institutional 3 Class | Consumer Staples Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 6.20% |
| Columbia Emerging Markets Fund Institutional 3 Class | Energy Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.50% |
| Columbia Emerging Markets Fund Institutional 3 Class | Healthcare Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.10% |
| Columbia Emerging Markets Fund Institutional 3 Class | Real Estate Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2% |
| Columbia Emerging Markets Fund Institutional 3 Class | Materials Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Institutional 3 Class | Unclassified Sector [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.70% |
| Columbia Emerging Markets Fund Institutional 3 Class | INDIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 22.20% |
| Columbia Emerging Markets Fund Institutional 3 Class | CHINA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 19.60% |
| Columbia Emerging Markets Fund Institutional 3 Class | TAIWAN | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 18.10% |
| Columbia Emerging Markets Fund Institutional 3 Class | KOREA, REPUBLIC OF | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 11.50% |
| Columbia Emerging Markets Fund Institutional 3 Class | BRAZIL | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 8.90% |
| Columbia Emerging Markets Fund Institutional 3 Class | INDONESIA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 5% |
| Columbia Emerging Markets Fund Institutional 3 Class | GREECE | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.30% |
| Columbia Emerging Markets Fund Institutional 3 Class | MEXICO | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 4.10% |
| Columbia Emerging Markets Fund Institutional 3 Class | other [Member] | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 3.40% |
| Columbia Emerging Markets Fund Institutional 3 Class | UNITED STATES | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 2.10% |
| Columbia Emerging Markets Fund Institutional 3 Class | SOUTH AFRICA | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 1.50% |
