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Shareholder Report
 6 Months Ended
Aug. 31, 2024
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Columbia Funds Series Trust
Entity Central Index Key 0001097519
Entity Investment Company Type N-1A
Document Period End Date Aug. 31, 2024
Columbia Select Mid Cap Value Fund - Class A  
Shareholder Report [Line Items]  
Fund Name Columbia Select Mid Cap Value Fund
Class Name Class A
Trading Symbol CMUAX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Select Mid Cap Value Fund (the Fund) for the period of March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
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)
ClassCost of a $10,000 investmentCost paid as a percentage of a $10,000 investment
Class A
$
59		1.12
%
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.12%
Net Assets $ 2,622,817,320
Holdings Count | Holding 50
Investment Company, Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
2,622,817,320
Total number of portfolio holdings50
Portfolio turnover for the reporting period 5%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
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
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Columbia Select Mid Cap Value Fund - Advisor Class  
Shareholder Report [Line Items]  
Fund Name Columbia Select Mid Cap Value Fund
Class Name Advisor Class
Trading Symbol CFDRX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Select Mid Cap Value Fund (the Fund) for the period of March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
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)
ClassCost of a $10,000 investmentCost paid as a percentage of a $10,000 investment
Advisor Class
$
47		0.88
%
Expenses Paid, Amount $ 47
Expense Ratio, Percent 0.88%
Net Assets $ 2,622,817,320
Holdings Count | Holding 50
Investment Company, Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
2,622,817,320
Total number of portfolio holdings50
Portfolio turnover for the reporting period 5%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
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
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Columbia Select Mid Cap Value Fund - Class C  
Shareholder Report [Line Items]  
Fund Name Columbia Select Mid Cap Value Fund
Class Name Class C
Trading Symbol CMUCX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Select Mid Cap Value Fund (the Fund) for the period of March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
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)
ClassCost of a $10,000 investmentCost paid as a percentage of a $10,000 investment
Class C
$
99		1.87
%
Expenses Paid, Amount $ 99
Expense Ratio, Percent 1.87%
Net Assets $ 2,622,817,320
Holdings Count | Holding 50
Investment Company, Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
2,622,817,320
Total number of portfolio holdings50
Portfolio turnover for the reporting period 5%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
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
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Columbia Select Mid Cap Value Fund Institutional Class  
Shareholder Report [Line Items]  
Fund Name Columbia Select Mid Cap Value Fund
Class Name Institutional Class
Trading Symbol NAMAX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Select Mid Cap Value Fund (the Fund) for the period of March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
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)
ClassCost of a $10,000 investmentCost paid as a percentage of a $10,000 investment
Institutional Class
$
47		0.88
%
Expenses Paid, Amount $ 47
Expense Ratio, Percent 0.88%
Net Assets $ 2,622,817,320
Holdings Count | Holding 50
Investment Company, Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
2,622,817,320
Total number of portfolio holdings50
Portfolio turnover for the reporting period 5%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
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
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Columbia Select Mid Cap Value Fund - Institutional 2 Class  
Shareholder Report [Line Items]  
Fund Name Columbia Select Mid Cap Value Fund
Class Name Institutional 2 Class
Trading Symbol CVERX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Select Mid Cap Value Fund (the Fund) for the period of March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
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)
ClassCost of a $10,000 investmentCost paid as a percentage of a $10,000 investment
Institutional 2 Class
$
42		0.79
%
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.79%
Net Assets $ 2,622,817,320
Holdings Count | Holding 50
Investment Company, Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
2,622,817,320
Total number of portfolio holdings50
Portfolio turnover for the reporting period 5%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
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
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Columbia Select Mid Cap Value Fund - Institutional 3 Class  
Shareholder Report [Line Items]  
Fund Name Columbia Select Mid Cap Value Fund
Class Name Institutional 3 Class
Trading Symbol CMVYX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Select Mid Cap Value Fund (the Fund) for the period of March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
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)
ClassCost of a $10,000 investmentCost paid as a percentage of a $10,000 investment
Institutional 3 Class
$
39		0.74
%
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.74%
Net Assets $ 2,622,817,320
Holdings Count | Holding 50
Investment Company, Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
2,622,817,320
Total number of portfolio holdings50
Portfolio turnover for the reporting period 5%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
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
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Columbia Select Mid Cap Value Fund - Class R  
Shareholder Report [Line Items]  
Fund Name Columbia Select Mid Cap Value Fund
Class Name Class R
Trading Symbol CMVRX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Select Mid Cap Value Fund (the Fund) for the period of March 1, 2024 to August 31, 2024.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
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)
ClassCost of a $10,000 investmentCost paid as a percentage of a $10,000 investment
Class R
$
73		1.37
%
Expenses Paid, Amount $ 73
Expense Ratio, Percent 1.37%
Net Assets $ 2,622,817,320
Holdings Count | Holding 50
Investment Company, Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
2,622,817,320
Total number of portfolio holdings50
Portfolio turnover for the reporting period 5%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
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
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
AMETEK, Inc.3.0
%
CACI International, Inc., Class A2.9
%
Ingersoll Rand, Inc.2.8
%
ITT, Inc.2.8
%
Marathon Petroleum Corp.2.8
%
Entergy Corp.2.6
%
Corning, Inc.2.4
%
D.R. Horton, Inc.2.4
%
Reinsurance Group of America, Inc.2.4
%
Welltower, Inc.2.3
%