v3.26.1
Shareholder Report
6 Months Ended
Sep. 05, 2025
Feb. 28, 2026
USD ($)
Holding
Shareholder Report [Line Items]    
Document Type   N-CSRS
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   Feb. 28, 2026
Shareholder Report Annual or Semi-Annual   Semi-Annual Shareholder Report
C000097619    
Shareholder Report [Line Items]    
Fund Name   Columbia Emerging Markets Bond Fund
Class Name   Class A
Trading Symbol   REBAX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Emerging Markets Bond Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Class A
$57
1.11%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 57
Expense Ratio, Percent [1]   1.11%
AssetsNet   $ 360,955,543
Holdings Count | Holding   174
InvestmentCompanyPortfolioTurnover   24.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$360,955,543
Total number of portfolio holdings
174
Portfolio turnover for the reporting period
24%
Holdings [Text Block]  

Geographic Allocation 

Table Summary
Mexico
9.1%
Saudi Arabia
8.5%
Turkey
6.6%
United Arab Emirates
6.1%
United States
5.8%
Chile
4.9%
Indonesia
4.3%
Hungary
3.7%
Colombia
3.6%
Dominican Republic
2.6%
Other
44.3%

Asset Categories

Table Summary
Foreign Government Obligations
86.9%
Corporate Bonds & Notes
6.8%
Money Market Funds
5.8%
Other
0.1%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Mexico Government International Bond 02/12/2034 3.500%
2.9%
Argentine Republic Government International Bond 07/09/2035 2.750%
2.4%
Saudi Government International Bond 01/13/2035 5.625%
2.3%
Chile Government International Bond 01/05/2036 4.950%
2.1%
Hungary Government International Bond 09/22/2032 6.250%
1.9%
Perusahaan Penerbit SBSN Indonesia III 06/06/2032 4.700%
1.7%
Petroleos de Venezuela SA 05/16/2024 0.000%
1.5%
Hungary Government International Bond 09/22/2031 2.125%
1.4%
DP World PLC 07/02/2037 6.850%
1.4%
Peruvian Government International Bond 11/18/2050 5.625%
1.4%
Material Fund Change [Text Block]  
C000109803    
Shareholder Report [Line Items]    
Fund Name   Columbia Emerging Markets Bond Fund
Class Name   Class R
Trading Symbol   CMBRX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Emerging Markets Bond Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Class R
$70
1.36%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 70
Expense Ratio, Percent [2]   1.36%
AssetsNet   $ 360,955,543
Holdings Count | Holding   174
InvestmentCompanyPortfolioTurnover   24.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$360,955,543
Total number of portfolio holdings
174
Portfolio turnover for the reporting period
24%
Holdings [Text Block]  

Geographic Allocation 

Table Summary
Mexico
9.1%
Saudi Arabia
8.5%
Turkey
6.6%
United Arab Emirates
6.1%
United States
5.8%
Chile
4.9%
Indonesia
4.3%
Hungary
3.7%
Colombia
3.6%
Dominican Republic
2.6%
Other
44.3%

Asset Categories

Table Summary
Foreign Government Obligations
86.9%
Corporate Bonds & Notes
6.8%
Money Market Funds
5.8%
Other
0.1%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Mexico Government International Bond 02/12/2034 3.500%
2.9%
Argentine Republic Government International Bond 07/09/2035 2.750%
2.4%
Saudi Government International Bond 01/13/2035 5.625%
2.3%
Chile Government International Bond 01/05/2036 4.950%
2.1%
Hungary Government International Bond 09/22/2032 6.250%
1.9%
Perusahaan Penerbit SBSN Indonesia III 06/06/2032 4.700%
1.7%
Petroleos de Venezuela SA 05/16/2024 0.000%
1.5%
Hungary Government International Bond 09/22/2031 2.125%
1.4%
DP World PLC 07/02/2037 6.850%
1.4%
Peruvian Government International Bond 11/18/2050 5.625%
1.4%
Material Fund Change [Text Block]  
C000122765    
Shareholder Report [Line Items]    
Fund Name   Columbia Emerging Markets Bond Fund
Class Name   Institutional 2 Class
Trading Symbol   CEBRX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Emerging Markets Bond Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional 2 Class
$37
0.73%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 37
Expense Ratio, Percent [3]   0.73%
AssetsNet   $ 360,955,543
Holdings Count | Holding   174
InvestmentCompanyPortfolioTurnover   24.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$360,955,543
Total number of portfolio holdings
174
Portfolio turnover for the reporting period
24%
Holdings [Text Block]  

Geographic Allocation 

Table Summary
Mexico
9.1%
Saudi Arabia
8.5%
Turkey
6.6%
United Arab Emirates
6.1%
United States
5.8%
Chile
4.9%
Indonesia
4.3%
Hungary
3.7%
Colombia
3.6%
Dominican Republic
2.6%
Other
44.3%

Asset Categories

Table Summary
Foreign Government Obligations
86.9%
Corporate Bonds & Notes
6.8%
Money Market Funds
5.8%
Other
0.1%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Mexico Government International Bond 02/12/2034 3.500%
2.9%
Argentine Republic Government International Bond 07/09/2035 2.750%
2.4%
Saudi Government International Bond 01/13/2035 5.625%
2.3%
Chile Government International Bond 01/05/2036 4.950%
2.1%
Hungary Government International Bond 09/22/2032 6.250%
1.9%
Perusahaan Penerbit SBSN Indonesia III 06/06/2032 4.700%
1.7%
Petroleos de Venezuela SA 05/16/2024 0.000%
1.5%
Hungary Government International Bond 09/22/2031 2.125%
1.4%
DP World PLC 07/02/2037 6.850%
1.4%
Peruvian Government International Bond 11/18/2050 5.625%
1.4%
Material Fund Change [Text Block]  
C000122766    
Shareholder Report [Line Items]    
Fund Name   Columbia Emerging Markets Bond Fund
Class Name   Institutional 3 Class
Trading Symbol   CEBYX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Emerging Markets Bond Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional 3 Class
$35
0.68%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 35
Expense Ratio, Percent [4]   0.68%
AssetsNet   $ 360,955,543
Holdings Count | Holding   174
InvestmentCompanyPortfolioTurnover   24.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$360,955,543
Total number of portfolio holdings
174
Portfolio turnover for the reporting period
24%
Holdings [Text Block]  

Geographic Allocation 

Table Summary
Mexico
9.1%
Saudi Arabia
8.5%
Turkey
6.6%
United Arab Emirates
6.1%
United States
5.8%
Chile
4.9%
Indonesia
4.3%
Hungary
3.7%
Colombia
3.6%
Dominican Republic
2.6%
Other
44.3%

Asset Categories

Table Summary
Foreign Government Obligations
86.9%
Corporate Bonds & Notes
6.8%
Money Market Funds
5.8%
Other
0.1%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Mexico Government International Bond 02/12/2034 3.500%
2.9%
Argentine Republic Government International Bond 07/09/2035 2.750%
2.4%
Saudi Government International Bond 01/13/2035 5.625%
2.3%
Chile Government International Bond 01/05/2036 4.950%
2.1%
Hungary Government International Bond 09/22/2032 6.250%
1.9%
Perusahaan Penerbit SBSN Indonesia III 06/06/2032 4.700%
1.7%
Petroleos de Venezuela SA 05/16/2024 0.000%
1.5%
Hungary Government International Bond 09/22/2031 2.125%
1.4%
DP World PLC 07/02/2037 6.850%
1.4%
Peruvian Government International Bond 11/18/2050 5.625%
1.4%
Material Fund Change [Text Block]  
C000097625    
Shareholder Report [Line Items]    
Fund Name   Columbia Emerging Markets Bond Fund
Class Name   Institutional Class
Trading Symbol   CMBZX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Emerging Markets Bond Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional Class
$45
0.87%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 45
Expense Ratio, Percent [5]   0.87%
AssetsNet   $ 360,955,543
Holdings Count | Holding   174
InvestmentCompanyPortfolioTurnover   24.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$360,955,543
Total number of portfolio holdings
174
Portfolio turnover for the reporting period
24%
Holdings [Text Block]  

Geographic Allocation 

Table Summary
Mexico
9.1%
Saudi Arabia
8.5%
Turkey
6.6%
United Arab Emirates
6.1%
United States
5.8%
Chile
4.9%
Indonesia
4.3%
Hungary
3.7%
Colombia
3.6%
Dominican Republic
2.6%
Other
44.3%

Asset Categories

Table Summary
Foreign Government Obligations
86.9%
Corporate Bonds & Notes
6.8%
Money Market Funds
5.8%
Other
0.1%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Mexico Government International Bond 02/12/2034 3.500%
2.9%
Argentine Republic Government International Bond 07/09/2035 2.750%
2.4%
Saudi Government International Bond 01/13/2035 5.625%
2.3%
Chile Government International Bond 01/05/2036 4.950%
2.1%
Hungary Government International Bond 09/22/2032 6.250%
1.9%
Perusahaan Penerbit SBSN Indonesia III 06/06/2032 4.700%
1.7%
Petroleos de Venezuela SA 05/16/2024 0.000%
1.5%
Hungary Government International Bond 09/22/2031 2.125%
1.4%
DP World PLC 07/02/2037 6.850%
1.4%
Peruvian Government International Bond 11/18/2050 5.625%
1.4%
Material Fund Change [Text Block]  
C000231664    
Shareholder Report [Line Items]    
Fund Name   Columbia Integrated Large Cap Growth Fund
Class Name   Class A
Trading Symbol   ILGCX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Integrated Large Cap Growth Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Class A
$45
0.91%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 45
Expense Ratio, Percent [6]   0.91%
Material Change Date Sep. 05, 2025  
AssetsNet   $ 183,075,243
Holdings Count | Holding   62
InvestmentCompanyPortfolioTurnover   23.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$183,075,243
Total number of portfolio holdings
62
Portfolio turnover for the reporting period
23%
Holdings [Text Block]  

Information Technology Sub-Industry Allocation 

Table Summary
Semiconductors
19.8%
Technology Hardware, Storage & Peripherals
8.6%
Systems Software
6.8%
Application Software
6.1%
Communications Equipment
3.0%
Other
0.6%

Equity Sector Allocation

Table Summary
Information Technology
44.9%
Consumer Discretionary
14.1%
Communication Services
11.7%
Health Care
10.6%
Financials
6.8%
Industrials
5.8%
Utilities
1.5%
Energy
1.2%
Materials
1.1%
Consumer Staples
0.6%
Other
0.3%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
NVIDIA Corp.
10.9%
Apple, Inc.
7.9%
Broadcom, Inc.
6.0%
Microsoft Corp.
6.0%
Alphabet, Inc., Class C
5.4%
Amazon.com, Inc.
4.7%
Meta Platforms, Inc., Class A
4.5%
Eli Lilly & Co.
3.4%
Tesla, Inc.
2.9%
GE Vernova, Inc.
2.3%
Material Fund Change [Text Block]  

Certain Fund Changes 

This is a summary of the changes to the Fund. For more complete information, you may review the Fund’s prospectus, which is available at columbiathreadneedleus.com/resources/literature or upon request at 1-800-345-6611.

 

At a meeting held on September 5, 2025, the Board of Trustees of Columbia Funds Series Trust II approved an Agreement and Plan of Reorganization pursuant to which the Fund transferred all of its assets and liabilities to Columbia Large Cap Growth ETF (the Acquiring Fund) in exchange for shares of the Acquiring Fund (the Reorganization). The Reorganization did not require shareholder approval and closed on March 16, 2026. As a result of the Reorganization, Class A incurred 0.19% in reorganizational expenses, which had an impact of a 0.19% increase to the net expense ratio during the current reporting period.

Summary of Change Legend [Text Block]  

This is a summary of the changes to the Fund. For more complete information, you may review the Fund’s prospectus, which is available at columbiathreadneedleus.com/resources/literature or upon request at 1-800-345-6611.

 

Updated Prospectus Phone Number   1-800-345-6611
Updated Prospectus Web Address   columbiathreadneedleus.com/resources/literature
C000231666    
Shareholder Report [Line Items]    
Fund Name   Columbia Integrated Large Cap Growth Fund
Class Name   Institutional 3 Class
Trading Symbol   ILGJX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Integrated Large Cap Growth Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional 3 Class
$23
0.47%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 23
Expense Ratio, Percent [7]   0.47%
Material Change Date Sep. 05, 2025  
AssetsNet   $ 183,075,243
Holdings Count | Holding   62
InvestmentCompanyPortfolioTurnover   23.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$183,075,243
Total number of portfolio holdings
62
Portfolio turnover for the reporting period
23%
Holdings [Text Block]  

Information Technology Sub-Industry Allocation 

Table Summary
Semiconductors
19.8%
Technology Hardware, Storage & Peripherals
8.6%
Systems Software
6.8%
Application Software
6.1%
Communications Equipment
3.0%
Other
0.6%

Equity Sector Allocation

Table Summary
Information Technology
44.9%
Consumer Discretionary
14.1%
Communication Services
11.7%
Health Care
10.6%
Financials
6.8%
Industrials
5.8%
Utilities
1.5%
Energy
1.2%
Materials
1.1%
Consumer Staples
0.6%
Other
0.3%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
NVIDIA Corp.
10.9%
Apple, Inc.
7.9%
Broadcom, Inc.
6.0%
Microsoft Corp.
6.0%
Alphabet, Inc., Class C
5.4%
Amazon.com, Inc.
4.7%
Meta Platforms, Inc., Class A
4.5%
Eli Lilly & Co.
3.4%
Tesla, Inc.
2.9%
GE Vernova, Inc.
2.3%
Material Fund Change [Text Block]  

Certain Fund Changes 

This is a summary of the changes to the Fund. For more complete information, you may review the Fund’s prospectus, which is available at columbiathreadneedleus.com/resources/literature or upon request at 1-800-345-6611.

 

At a meeting held on September 5, 2025, the Board of Trustees of Columbia Funds Series Trust II approved an Agreement and Plan of Reorganization pursuant to which the Fund transferred all of its assets and liabilities to Columbia Large Cap Growth ETF (the Acquiring Fund) in exchange for shares of the Acquiring Fund (the Reorganization). The Reorganization did not require shareholder approval and closed on March 16, 2026. As a result of the Reorganization, Institutional 3 Class incurred 0.04% in reorganizational expenses, which had an impact of a 0.04% increase to the net expense ratio during the current reporting period.

Summary of Change Legend [Text Block]  

This is a summary of the changes to the Fund. For more complete information, you may review the Fund’s prospectus, which is available at columbiathreadneedleus.com/resources/literature or upon request at 1-800-345-6611.

 

Updated Prospectus Phone Number   1-800-345-6611
Updated Prospectus Web Address   columbiathreadneedleus.com/resources/literature
C000231663    
Shareholder Report [Line Items]    
Fund Name   Columbia Integrated Large Cap Growth Fund
Class Name   Institutional Class
Trading Symbol   ILGGX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Integrated Large Cap Growth Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional Class
$31
0.63%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 31
Expense Ratio, Percent [8]   0.63%
Material Change Date Sep. 05, 2025  
AssetsNet   $ 183,075,243
Holdings Count | Holding   62
InvestmentCompanyPortfolioTurnover   23.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$183,075,243
Total number of portfolio holdings
62
Portfolio turnover for the reporting period
23%
Holdings [Text Block]  

Information Technology Sub-Industry Allocation 

Table Summary
Semiconductors
19.8%
Technology Hardware, Storage & Peripherals
8.6%
Systems Software
6.8%
Application Software
6.1%
Communications Equipment
3.0%
Other
0.6%

Equity Sector Allocation

Table Summary
Information Technology
44.9%
Consumer Discretionary
14.1%
Communication Services
11.7%
Health Care
10.6%
Financials
6.8%
Industrials
5.8%
Utilities
1.5%
Energy
1.2%
Materials
1.1%
Consumer Staples
0.6%
Other
0.3%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
NVIDIA Corp.
10.9%
Apple, Inc.
7.9%
Broadcom, Inc.
6.0%
Microsoft Corp.
6.0%
Alphabet, Inc., Class C
5.4%
Amazon.com, Inc.
4.7%
Meta Platforms, Inc., Class A
4.5%
Eli Lilly & Co.
3.4%
Tesla, Inc.
2.9%
GE Vernova, Inc.
2.3%
Material Fund Change [Text Block]  

Certain Fund Changes 

This is a summary of the changes to the Fund. For more complete information, you may review the Fund’s prospectus, which is available at columbiathreadneedleus.com/resources/literature or upon request at 1-800-345-6611.

 

At a meeting held on September 5, 2025, the Board of Trustees of Columbia Funds Series Trust II approved an Agreement and Plan of Reorganization pursuant to which the Fund transferred all of its assets and liabilities to Columbia Large Cap Growth ETF (the Acquiring Fund) in exchange for shares of the Acquiring Fund (the Reorganization). The Reorganization did not require shareholder approval and closed on March 16, 2026. As a result of the Reorganization, Institutional Class incurred 0.09% in reorganizational expenses, which had an impact of a 0.09% increase to the net expense ratio during the current reporting period.

Summary of Change Legend [Text Block]  

This is a summary of the changes to the Fund. For more complete information, you may review the Fund’s prospectus, which is available at columbiathreadneedleus.com/resources/literature or upon request at 1-800-345-6611.

 

Updated Prospectus Phone Number   1-800-345-6611
Updated Prospectus Web Address   columbiathreadneedleus.com/resources/literature
C000231674    
Shareholder Report [Line Items]    
Fund Name   Columbia Integrated Large Cap Value Fund
Class Name   Class A
Trading Symbol   ILVBX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Integrated Large Cap Value Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Class A
$47
0.89%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 47
Expense Ratio, Percent [9]   0.89%
Material Change Date Sep. 05, 2025  
AssetsNet   $ 45,029,629
Holdings Count | Holding   74
InvestmentCompanyPortfolioTurnover   24.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$45,029,629
Total number of portfolio holdings
74
Portfolio turnover for the reporting period
24%
Holdings [Text Block]  

Equity Sector Allocation

Table Summary
Financials
22.5%
Health Care
15.6%
Industrials
9.9%
Energy
9.5%
Information Technology
8.1%
Communication Services
7.3%
Consumer Discretionary
6.3%
Consumer Staples
5.5%
Utilities
5.2%
Real Estate
4.2%
Other
4.2%

Asset Categories

Table Summary
Common Stocks
98.3%
Money Market Funds
1.7%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Walmart, Inc.
3.5%
Exxon Mobil Corp.
3.3%
Merck & Co., Inc.
3.1%
Newmont Corp.
2.5%
TechnipFMC PLC
2.4%
Amazon.com, Inc.
2.4%
Alphabet, Inc., Class C
2.4%
Citigroup, Inc.
2.2%
Cummins, Inc.
2.2%
Chubb Ltd.
2.2%
Material Fund Change [Text Block]  

Certain Fund Changes 

This is a summary of the changes to the Fund. For more complete information, you may review the Fund’s prospectus, which is available at columbiathreadneedleus.com/resources/literature or upon request at 1-800-345-6611.

 

At a meeting held on September 5, 2025, the Board of Trustees of Columbia Funds Series Trust II approved an Agreement and Plan of Reorganization pursuant to which the Fund transferred all of its assets and liabilities to Columbia Research Enhanced Value ETF (the Acquiring Fund) in exchange for shares of the Acquiring Fund (the Reorganization). The Reorganization did not require shareholder approval and closed on March 16, 2026. As a result of the Reorganization, Class A incurred 0.39% in reorganizational expenses, which had an impact of a 0.39% increase to the net expense ratio during the current reporting period.

Summary of Change Legend [Text Block]  

This is a summary of the changes to the Fund. For more complete information, you may review the Fund’s prospectus, which is available at columbiathreadneedleus.com/resources/literature or upon request at 1-800-345-6611.

 

Updated Prospectus Phone Number   1-800-345-6611
Updated Prospectus Web Address   columbiathreadneedleus.com/resources/literature
C000231668    
Shareholder Report [Line Items]    
Fund Name   Columbia Integrated Large Cap Value Fund
Class Name   Institutional Class
Trading Symbol   ILVFX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Integrated Large Cap Value Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional Class
$32
0.61%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 32
Expense Ratio, Percent [10]   0.61%
Material Change Date Sep. 05, 2025  
AssetsNet   $ 45,029,629
Holdings Count | Holding   74
InvestmentCompanyPortfolioTurnover   24.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$45,029,629
Total number of portfolio holdings
74
Portfolio turnover for the reporting period
24%
Holdings [Text Block]  

Equity Sector Allocation

Table Summary
Financials
22.5%
Health Care
15.6%
Industrials
9.9%
Energy
9.5%
Information Technology
8.1%
Communication Services
7.3%
Consumer Discretionary
6.3%
Consumer Staples
5.5%
Utilities
5.2%
Real Estate
4.2%
Other
4.2%

Asset Categories

Table Summary
Common Stocks
98.3%
Money Market Funds
1.7%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Walmart, Inc.
3.5%
Exxon Mobil Corp.
3.3%
Merck & Co., Inc.
3.1%
Newmont Corp.
2.5%
TechnipFMC PLC
2.4%
Amazon.com, Inc.
2.4%
Alphabet, Inc., Class C
2.4%
Citigroup, Inc.
2.2%
Cummins, Inc.
2.2%
Chubb Ltd.
2.2%
Material Fund Change [Text Block]  

Certain Fund Changes 

This is a summary of the changes to the Fund. For more complete information, you may review the Fund’s prospectus, which is available at columbiathreadneedleus.com/resources/literature or upon request at 1-800-345-6611.

 

At a meeting held on September 5, 2025, the Board of Trustees of Columbia Funds Series Trust II approved an Agreement and Plan of Reorganization pursuant to which the Fund transferred all of its assets and liabilities to Columbia Research Enhanced Value ETF (the Acquiring Fund) in exchange for shares of the Acquiring Fund (the Reorganization). The Reorganization did not require shareholder approval and closed on March 16, 2026. As a result of the Reorganization, Institutional Class incurred 0.35% in reorganizational expenses, which had an impact of a 0.35% increase to the net expense ratio during the current reporting period.

Summary of Change Legend [Text Block]  

This is a summary of the changes to the Fund. For more complete information, you may review the Fund’s prospectus, which is available at columbiathreadneedleus.com/resources/literature or upon request at 1-800-345-6611.

 

Updated Prospectus Phone Number   1-800-345-6611
Updated Prospectus Web Address   columbiathreadneedleus.com/resources/literature
C000231675    
Shareholder Report [Line Items]    
Fund Name   Columbia Integrated Small Cap Growth Fund
Class Name   Class A
Trading Symbol   ISGDX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Integrated Small Cap Growth Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Class A
$62
1.20%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 62
Expense Ratio, Percent [11]   1.20%
AssetsNet   $ 28,447,061
Holdings Count | Holding   143
InvestmentCompanyPortfolioTurnover   54.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$28,447,061
Total number of portfolio holdings
143
Portfolio turnover for the reporting period
54%
Holdings [Text Block]  

Equity Sector Allocation

Table Summary
Health Care
25.4%
Industrials
22.2%
Information Technology
17.0%
Consumer Discretionary
10.6%
Financials
9.9%
Communication Services
3.9%
Materials
3.8%
Energy
3.7%
Real Estate
1.3%
Consumer Staples
0.5%

Asset Categories

Table Summary
Common Stocks
98.3%
Money Market Funds
1.8%
Other
0.0%Footnote Reference*
Footnote Description
Footnote*
Percentage rounds to less than 0.1% or (0.1)%.
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Bloom Energy Corp., Class A
3.2%
Fabrinet
2.3%
Dycom Industries, Inc.
2.0%
Coeur Mining, Inc.
2.0%
Credo Technology Group Holding Ltd.
1.9%
SPX Technologies, Inc.
1.9%
Nextpower, Inc., Class A
1.9%
Kratos Defense & Security Solutions, Inc.
1.8%
Clear Secure, Inc., Class A
1.7%
Tidewater, Inc.
1.7%
Material Fund Change [Text Block]  
C000231678    
Shareholder Report [Line Items]    
Fund Name   Columbia Integrated Small Cap Growth Fund
Class Name   Institutional Class
Trading Symbol   ISGNX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Integrated Small Cap Growth Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional Class
$51
0.99%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 51
Expense Ratio, Percent [12]   0.99%
AssetsNet   $ 28,447,061
Holdings Count | Holding   143
InvestmentCompanyPortfolioTurnover   54.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$28,447,061
Total number of portfolio holdings
143
Portfolio turnover for the reporting period
54%
Holdings [Text Block]  

Equity Sector Allocation

Table Summary
Health Care
25.4%
Industrials
22.2%
Information Technology
17.0%
Consumer Discretionary
10.6%
Financials
9.9%
Communication Services
3.9%
Materials
3.8%
Energy
3.7%
Real Estate
1.3%
Consumer Staples
0.5%

Asset Categories

Table Summary
Common Stocks
98.3%
Money Market Funds
1.8%
Other
0.0%Footnote Reference*
Footnote Description
Footnote*
Percentage rounds to less than 0.1% or (0.1)%.
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Bloom Energy Corp., Class A
3.2%
Fabrinet
2.3%
Dycom Industries, Inc.
2.0%
Coeur Mining, Inc.
2.0%
Credo Technology Group Holding Ltd.
1.9%
SPX Technologies, Inc.
1.9%
Nextpower, Inc., Class A
1.9%
Kratos Defense & Security Solutions, Inc.
1.8%
Clear Secure, Inc., Class A
1.7%
Tidewater, Inc.
1.7%
Material Fund Change [Text Block]  
C000231687    
Shareholder Report [Line Items]    
Fund Name   Columbia Pyrford International Stock Fund
Class Name   Class A
Trading Symbol   PISDX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Pyrford International Stock Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Class A
$62
1.16%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 62
Expense Ratio, Percent [13]   1.16%
AssetsNet   $ 252,991,171
Holdings Count | Holding   78
InvestmentCompanyPortfolioTurnover   3.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$252,991,171
Total number of portfolio holdings
78
Portfolio turnover for the reporting period
3%
Holdings [Text Block]  

Geographic Allocation 

Table Summary
Japan
14.0%
United Kingdom
13.6%
Australia
9.4%
Germany
9.3%
France
8.7%
Switzerland
8.1%
Singapore
6.5%
United States
6.0%
Hong Kong
4.5%
Taiwan
3.0%
Other
15.2%

Equity Sector Allocation

Table Summary
Industrials
22.4%
Consumer Staples
15.6%
Financials
13.2%
Health Care
10.7%
Information Technology
9.1%
Communication Services
9.1%
Materials
7.8%
Utilities
3.3%
Energy
3.2%
Consumer Discretionary
2.6%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Nestlé SA, Registered Shares
2.7%
Japan Tobacco, Inc.
2.5%
Roche Holding AG, Genusschein Shares
2.4%
Brambles Ltd.
2.3%
Air Liquide SA
2.2%
Mitsubishi Electric Corp.
2.2%
Unilever PLC
2.2%
United Overseas Bank Ltd.
2.2%
Telenor ASA
2.1%
KDDI Corp.
2.1%
Material Fund Change [Text Block]  
C000231683    
Shareholder Report [Line Items]    
Fund Name   Columbia Pyrford International Stock Fund
Class Name   Class R
Trading Symbol   PISJX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Pyrford International Stock Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Class R
$75
1.41%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 75
Expense Ratio, Percent [14]   1.41%
AssetsNet   $ 252,991,171
Holdings Count | Holding   78
InvestmentCompanyPortfolioTurnover   3.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$252,991,171
Total number of portfolio holdings
78
Portfolio turnover for the reporting period
3%
Holdings [Text Block]  

Geographic Allocation 

Table Summary
Japan
14.0%
United Kingdom
13.6%
Australia
9.4%
Germany
9.3%
France
8.7%
Switzerland
8.1%
Singapore
6.5%
United States
6.0%
Hong Kong
4.5%
Taiwan
3.0%
Other
15.2%

Equity Sector Allocation

Table Summary
Industrials
22.4%
Consumer Staples
15.6%
Financials
13.2%
Health Care
10.7%
Information Technology
9.1%
Communication Services
9.1%
Materials
7.8%
Utilities
3.3%
Energy
3.2%
Consumer Discretionary
2.6%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Nestlé SA, Registered Shares
2.7%
Japan Tobacco, Inc.
2.5%
Roche Holding AG, Genusschein Shares
2.4%
Brambles Ltd.
2.3%
Air Liquide SA
2.2%
Mitsubishi Electric Corp.
2.2%
Unilever PLC
2.2%
United Overseas Bank Ltd.
2.2%
Telenor ASA
2.1%
KDDI Corp.
2.1%
Material Fund Change [Text Block]  
C000231686    
Shareholder Report [Line Items]    
Fund Name   Columbia Pyrford International Stock Fund
Class Name   Institutional 2 Class
Trading Symbol   PISOX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Pyrford International Stock Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional 2 Class
$44
0.83%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 44
Expense Ratio, Percent [15]   0.83%
AssetsNet   $ 252,991,171
Holdings Count | Holding   78
InvestmentCompanyPortfolioTurnover   3.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$252,991,171
Total number of portfolio holdings
78
Portfolio turnover for the reporting period
3%
Holdings [Text Block]  

Geographic Allocation 

Table Summary
Japan
14.0%
United Kingdom
13.6%
Australia
9.4%
Germany
9.3%
France
8.7%
Switzerland
8.1%
Singapore
6.5%
United States
6.0%
Hong Kong
4.5%
Taiwan
3.0%
Other
15.2%

Equity Sector Allocation

Table Summary
Industrials
22.4%
Consumer Staples
15.6%
Financials
13.2%
Health Care
10.7%
Information Technology
9.1%
Communication Services
9.1%
Materials
7.8%
Utilities
3.3%
Energy
3.2%
Consumer Discretionary
2.6%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Nestlé SA, Registered Shares
2.7%
Japan Tobacco, Inc.
2.5%
Roche Holding AG, Genusschein Shares
2.4%
Brambles Ltd.
2.3%
Air Liquide SA
2.2%
Mitsubishi Electric Corp.
2.2%
Unilever PLC
2.2%
United Overseas Bank Ltd.
2.2%
Telenor ASA
2.1%
KDDI Corp.
2.1%
Material Fund Change [Text Block]  
C000231688    
Shareholder Report [Line Items]    
Fund Name   Columbia Pyrford International Stock Fund
Class Name   Institutional 3 Class
Trading Symbol   PISQX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Pyrford International Stock Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional 3 Class
$41
0.77%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 41
Expense Ratio, Percent [16]   0.77%
AssetsNet   $ 252,991,171
Holdings Count | Holding   78
InvestmentCompanyPortfolioTurnover   3.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$252,991,171
Total number of portfolio holdings
78
Portfolio turnover for the reporting period
3%
Holdings [Text Block]  

Geographic Allocation 

Table Summary
Japan
14.0%
United Kingdom
13.6%
Australia
9.4%
Germany
9.3%
France
8.7%
Switzerland
8.1%
Singapore
6.5%
United States
6.0%
Hong Kong
4.5%
Taiwan
3.0%
Other
15.2%

Equity Sector Allocation

Table Summary
Industrials
22.4%
Consumer Staples
15.6%
Financials
13.2%
Health Care
10.7%
Information Technology
9.1%
Communication Services
9.1%
Materials
7.8%
Utilities
3.3%
Energy
3.2%
Consumer Discretionary
2.6%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Nestlé SA, Registered Shares
2.7%
Japan Tobacco, Inc.
2.5%
Roche Holding AG, Genusschein Shares
2.4%
Brambles Ltd.
2.3%
Air Liquide SA
2.2%
Mitsubishi Electric Corp.
2.2%
Unilever PLC
2.2%
United Overseas Bank Ltd.
2.2%
Telenor ASA
2.1%
KDDI Corp.
2.1%
Material Fund Change [Text Block]  
C000231685    
Shareholder Report [Line Items]    
Fund Name   Columbia Pyrford International Stock Fund
Class Name   Institutional Class
Trading Symbol   PISLX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Pyrford International Stock Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional Class
$48
0.91%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 48
Expense Ratio, Percent [17]   0.91%
AssetsNet   $ 252,991,171
Holdings Count | Holding   78
InvestmentCompanyPortfolioTurnover   3.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$252,991,171
Total number of portfolio holdings
78
Portfolio turnover for the reporting period
3%
Holdings [Text Block]  

Geographic Allocation 

Table Summary
Japan
14.0%
United Kingdom
13.6%
Australia
9.4%
Germany
9.3%
France
8.7%
Switzerland
8.1%
Singapore
6.5%
United States
6.0%
Hong Kong
4.5%
Taiwan
3.0%
Other
15.2%

Equity Sector Allocation

Table Summary
Industrials
22.4%
Consumer Staples
15.6%
Financials
13.2%
Health Care
10.7%
Information Technology
9.1%
Communication Services
9.1%
Materials
7.8%
Utilities
3.3%
Energy
3.2%
Consumer Discretionary
2.6%
Largest Holdings [Text Block]  

Top Holdings 

Table Summary
Nestlé SA, Registered Shares
2.7%
Japan Tobacco, Inc.
2.5%
Roche Holding AG, Genusschein Shares
2.4%
Brambles Ltd.
2.3%
Air Liquide SA
2.2%
Mitsubishi Electric Corp.
2.2%
Unilever PLC
2.2%
United Overseas Bank Ltd.
2.2%
Telenor ASA
2.1%
KDDI Corp.
2.1%
Material Fund Change [Text Block]  
C000231692    
Shareholder Report [Line Items]    
Fund Name   Columbia Ultra Short Duration Municipal Bond Fund
Class Name   Class A
Trading Symbol   USMBX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Ultra Short Duration Municipal Bond Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Class A
$23
0.47%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 23
Expense Ratio, Percent [18]   0.47%
AssetsNet   $ 81,407,529
Holdings Count | Holding   79
InvestmentCompanyPortfolioTurnover   46.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$81,407,529
Total number of portfolio holdings
79
Portfolio turnover for the reporting period
46%
Holdings [Text Block]  

Top States/Territories

Table Summary
Texas
13.6%
New York
13.4%
California
7.0%
Colorado
6.7%
New Jersey
4.9%
Florida
4.8%
Virginia
3.9%
Pennsylvania
3.9%
Wisconsin
3.8%
Massachusetts
3.6%

Asset Categories

Table Summary
Municipal Bonds
78.2%
Municipal Short Term
13.6%
Money Market Funds
7.6%
Floating Rate Notes
3.3%
C000231690    
Shareholder Report [Line Items]    
Fund Name   Columbia Ultra Short Duration Municipal Bond Fund
Class Name   Institutional Class
Trading Symbol   USMEX
Annual or Semi-Annual Statement [Text Block]   This semi-annual shareholder report contains important information about Columbia Ultra Short Duration Municipal Bond Fund (the Fund) for the period of September 1, 2025 to February 28, 2026.
Additional Information [Text Block]   You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature. You can also request more information by contacting us at 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)

Table Summary
Class
Cost of a $10,000 investment
Cost paid as a percentage of a $10,000 investment
Institutional Class
$16
0.32%Footnote Reference(a)
Footnote Description
Footnote(a)
Annualized
Expenses Paid, Amount   $ 16
Expense Ratio, Percent [19]   0.32%
AssetsNet   $ 81,407,529
Holdings Count | Holding   79
InvestmentCompanyPortfolioTurnover   46.00%
Additional Fund Statistics [Text Block]  

Key Fund Statistics

Table Summary
Fund net assets
$81,407,529
Total number of portfolio holdings
79
Portfolio turnover for the reporting period
46%
Holdings [Text Block]  

Top States/Territories

Table Summary
Texas
13.6%
New York
13.4%
California
7.0%
Colorado
6.7%
New Jersey
4.9%
Florida
4.8%
Virginia
3.9%
Pennsylvania
3.9%
Wisconsin
3.8%
Massachusetts
3.6%

Asset Categories

Table Summary
Municipal Bonds
78.2%
Municipal Short Term
13.6%
Money Market Funds
7.6%
Floating Rate Notes
3.3%
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