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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
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Convertible Securities Fund (the Fund) for the period of March 1, 2024 to August 31, 2024.
Columbia Convertible Securities Fund - Class A  
Shareholder Report [Line Items]  
Fund Name Columbia Convertible Securities Fund
Class Name Class A
Trading Symbol PACIX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Convertible Securities 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
$
55		1.07
%
Expenses Paid, Amount $ 55
Expense Ratio, Percent 1.07%
Net Assets $ 1,180,886,077
Holdings Count | Holding 114
Investment Company, Portfolio Turnover 49.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
1,180,886,077
Total number of
portfolio
holdings
114
Portfolio turnover for the reporting period 49%
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 chang
e.
Top Holdings
Bank of America Corp.7.250%2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		1.9
%
Welltower OP LLC
07/15/2029 3.125%		1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		1.7
%
Dexcom, Inc.
05/15/2028 0.375%		1.7
%
Carnival Corp.
12/01/2027 5.750%		1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		1.5
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Largest Holdings [Text Block]
Top Holdings
Bank of America Corp.7.250%2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		1.9
%
Welltower OP LLC
07/15/2029 3.125%		1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		1.7
%
Dexcom, Inc.
05/15/2028 0.375%		1.7
%
Carnival Corp.
12/01/2027 5.750%		1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		1.5
%
Columbia Convertible Securities Fund - Advisor Class  
Shareholder Report [Line Items]  
Fund Name Columbia Convertible Securities Fund
Class Name Advisor Class
Trading Symbol COVRX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Convertible Securities 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)
Class Cost of a $10,000 investment Cost paid as a percentage of a $10,000 investment
Advisor Class
$
42		 0.82
%
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.82%
Net Assets $ 1,180,886,077
Holdings Count | Holding 114
Investment Company, Portfolio Turnover 49.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
1,180,886,077
Total number of portfolio holdings 114
Portfolio turnover for the reporting period 49%
Holdings [Text Block]
Graphical Representation of Fund
 
H
ol
di
ngs
The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Deri
va
tives are excluded from the tables unless
otherwise
noted. The Fund's
portfolio
composition is subject to cha
nge.
Top Holdings
Bank of America Corp.7.250% 2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		 1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		 1.9
%
Welltower OP LLC
07/15/2029 3.125%		 1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		 1.7
%
Dexcom, Inc.
05/15/2028 0.375%		 1.7
%
Carnival Corp.
12/01/2027 5.750%		 1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		 1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		 1.5
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Largest Holdings [Text Block]
Top Holdings
Bank of America Corp.7.250% 2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		 1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		 1.9
%
Welltower OP LLC
07/15/2029 3.125%		 1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		 1.7
%
Dexcom, Inc.
05/15/2028 0.375%		 1.7
%
Carnival Corp.
12/01/2027 5.750%		 1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		 1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		 1.5
%
Columbia Convertible Securities Fund - Class C  
Shareholder Report [Line Items]  
Fund Name Columbia Convertible Securities Fund
Class Name Class C
Trading Symbol PHIKX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Convertible Securities 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
$
93		1.82
%
Expenses Paid, Amount $ 93
Expense Ratio, Percent 1.82%
Net Assets $ 1,180,886,077
Holdings Count | Holding 114
Investment Company, Portfolio Turnover 49.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund
net
assets
$
1,180,886,077
Total number of portfolio holdings114
Portfolio turnover for the reporting period 49%
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 cha
nge.
Top Holdings
Bank of America Corp.7.250%2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		1.9
%
Welltower OP LLC
07/15/2029 3.125%		1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		1.7
%
Dexcom, Inc.
05/15/2028 0.375%		1.7
%
Carnival Corp.
12/01/2027 5.750%		1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		1.5
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Largest Holdings [Text Block]
Top Holdings
Bank of America Corp.7.250%2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		1.9
%
Welltower OP LLC
07/15/2029 3.125%		1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		1.7
%
Dexcom, Inc.
05/15/2028 0.375%		1.7
%
Carnival Corp.
12/01/2027 5.750%		1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		1.5
%
Columbia Convertible Securities Fund - Institutional Class  
Shareholder Report [Line Items]  
Fund Name Columbia Convertible Securities Fund
Class Name Institutional Class
Trading Symbol NCIAX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Convertible Securities 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
$
42		0.82
%
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.82%
Net Assets $ 1,180,886,077
Holdings Count | Holding 114
Investment Company, Portfolio Turnover 49.00%
Additional Fund Statistics [Text Block]
Key Fund Stati
stics
Fund net assets
$
1,180,886,077
Total number of portfolio holdings114
Portfolio turnover for the reporting period 49%
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
cha
n
ge.
Top Holdin
gs
Bank of America Corp.7.250%2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		1.9
%
Welltower OP LLC
07/15/2029 3.125%		1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		1.7
%
Dexcom, Inc.
05/15/2028 0.375%		1.7
%
Carnival Corp.
12/01/2027 5.750%		1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		1.5
%
Asset Categori
es
Graphical Representation - Allocation 1 Chart
Largest Holdings [Text Block]
Top Holdin
gs
Bank of America Corp.7.250%2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		1.9
%
Welltower OP LLC
07/15/2029 3.125%		1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		1.7
%
Dexcom, Inc.
05/15/2028 0.375%		1.7
%
Carnival Corp.
12/01/2027 5.750%		1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		1.5
%
Columbia Convertible Securities Fund - Institutional 2 Class  
Shareholder Report [Line Items]  
Fund Name Columbia Convertible Securities Fund
Class Name Institutional 2 Class
Trading Symbol COCRX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder
report contains important information about Columbia Convertible Securities 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
$
40		0.78
%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.78%
Net Assets $ 1,180,886,077
Holdings Count | Holding 114
Investment Company, Portfolio Turnover 49.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
1,180,886,077
Total number of portfolio holdings114
Portfolio turnover for the reporting period 49%
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 chan
ge.
Top Holdings
Bank of America Corp.7.250%2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		1.9
%
Welltower OP LLC
07/15/2029 3.125%		1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		1.7
%
Dexcom, Inc.
05/15/2028 0.375%		1.7
%
Carnival Corp.
12/01/2027 5.750%		1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		1.5
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Largest Holdings [Text Block]
Top Holdings
Bank of America Corp.7.250%2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		1.9
%
Welltower OP LLC
07/15/2029 3.125%		1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		1.7
%
Dexcom, Inc.
05/15/2028 0.375%		1.7
%
Carnival Corp.
12/01/2027 5.750%		1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		1.5
%
Columbia Convertible Securities Fund - Institutional 3 Class  
Shareholder Report [Line Items]  
Fund Name Columbia Convertible Securities Fund
Class Name Institutional 3 Class
Trading Symbol CSFYX
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
$
38		0.73
%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.73%
Net Assets $ 1,180,886,077
Holdings Count | Holding 114
Investment Company, Portfolio Turnover 49.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
1,180,886,077
Total number of portfolio holdings114
Portfolio turnover for the reporting period 49%
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 chan
ge
.
Top Holdings
Bank of America Corp.7.250%2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		1.9
%
Welltower OP LLC
07/15/2029 3.125%		1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		1.7
%
Dexcom, Inc.
05/15/2028 0.375%		1.7
%
Carnival Corp.
12/01/2027 5.750%		1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		1.5
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Largest Holdings [Text Block]
Top Holdings
Bank of America Corp.7.250%2.1
%
Bill.com Holdings, Inc.
04/01/2027 		2.1
%
ON Semiconductor Corp.
03/01/2029 0.500%		1.9
%
NextEra Energy, Inc.
06/01/2027 7.299%		1.9
%
Welltower OP LLC
07/15/2029 3.125%		1.7
%
Lumentum Holdings, Inc.
06/15/2028 0.500%		1.7
%
Dexcom, Inc.
05/15/2028 0.375%		1.7
%
Carnival Corp.
12/01/2027 5.750%		1.6
%
Akamai Technologies, Inc.
02/15/2029 1.125%		1.5
%
Uber Technologies, Inc.
12/01/2028 0.875%		1.5
%