XML 22 R2.htm IDEA: XBRL DOCUMENT v3.24.3
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 Small Cap Index Fund Class A  
Shareholder Report [Line Items]  
Fund Name Columbia Small Cap Index Fund
Class Name Class A
Trading Symbol NMSAX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Small Cap Index 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
$
24		0.45
%
Expenses Paid, Amount $ 24
Expense Ratio, Percent 0.45%
Net Assets $ 3,277,016,446
Holdings Count | Holding 608
Investment Company, Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
3,277,016,446
Total number of portfolio holdings608
Portfolio turnover for
the
reporting period 		11%
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
iShares Core S&P Small-Cap ETF1.1
%
Fabrinet0.7
%
Ensign Group, Inc. (The)0.6
%
Mueller Industries, Inc.0.6
%
ATI, Inc.0.6
%
Comerica, Inc.0.6
%
SPX Technologies, Inc.0.6
%
SPS Commerce, Inc.0.6
%
Meritage Homes Corp.0.5
%
Carpenter Technology Corp.0.5
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
iShares Core S&P Small-Cap ETF1.1
%
Fabrinet0.7
%
Ensign Group, Inc. (The)0.6
%
Mueller Industries, Inc.0.6
%
ATI, Inc.0.6
%
Comerica, Inc.0.6
%
SPX Technologies, Inc.0.6
%
SPS Commerce, Inc.0.6
%
Meritage Homes Corp.0.5
%
Carpenter Technology Corp.0.5
%
Columbia Small Cap Index Fund Institutional Class  
Shareholder Report [Line Items]  
Fund Name Columbia Small Cap Index Fund
Class Name Institutional Class
Trading Symbol NMSCX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Small Cap Index 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
$
10		0.20
%
Expenses Paid, Amount $ 10
Expense Ratio, Percent 0.20%
Net Assets $ 3,277,016,446
Holdings Count | Holding 608
Investment Company, Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
3,277,016,446
Total number of portfolio holdings608
Portfolio turnover for the reporting period 11%
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
iShares Core S&P Small-Cap ETF1.1
%
Fabrinet0.7
%
Ensign Group, Inc. (The)0.6
%
Mueller Industries, Inc.0.6
%
ATI, Inc.0.6
%
Comerica, Inc.0.6
%
SPX Technologies, Inc.0.6
%
SPS Commerce, Inc.0.6
%
Meritage Homes Corp.0.5
%
Carpenter Technology Corp.0.5
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
iShares Core S&P Small-Cap ETF1.1
%
Fabrinet0.7
%
Ensign Group, Inc. (The)0.6
%
Mueller Industries, Inc.0.6
%
ATI, Inc.0.6
%
Comerica, Inc.0.6
%
SPX Technologies, Inc.0.6
%
SPS Commerce, Inc.0.6
%
Meritage Homes Corp.0.5
%
Carpenter Technology Corp.0.5
%
Columbia Small Cap Index Fund Institutional 2 Class  
Shareholder Report [Line Items]  
Fund Name Columbia Small Cap Index Fund
Class Name Institutional 2 Class
Trading Symbol CXXRX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Small Cap Index 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
$
10		0.20
%
Expenses Paid, Amount $ 10
Expense Ratio, Percent 0.20%
Net Assets $ 3,277,016,446
Holdings Count | Holding 608
Investment Company, Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net
assets
$
3,277,016,446
Total number of portfolio holdings608
Portfolio turnover for the reporting period 11%
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
iShares Core S&P Small-Cap ETF1.1
%
Fabrinet0.7
%
Ensign Group, Inc. (The)0.6
%
Mueller Industries, Inc.0.6
%
ATI, Inc.0.6
%
Comerica, Inc.0.6
%
SPX Technologies, Inc.0.6
%
SPS Commerce, Inc.0.6
%
Meritage Homes Corp.0.5
%
Carpenter Technology Corp.0.5
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
iShares Core S&P Small-Cap ETF1.1
%
Fabrinet0.7
%
Ensign Group, Inc. (The)0.6
%
Mueller Industries, Inc.0.6
%
ATI, Inc.0.6
%
Comerica, Inc.0.6
%
SPX Technologies, Inc.0.6
%
SPS Commerce, Inc.0.6
%
Meritage Homes Corp.0.5
%
Carpenter Technology Corp.0.5
%
Columbia Small Cap Index Fund Institutional 3 Class  
Shareholder Report [Line Items]  
Fund Name Columbia Small Cap Index Fund
Class Name Institutional 3 Class
Trading Symbol CSPYX
Annual or Semi-Annual Statement [Text Block] This
semiannual shareholder report
contains important information about Columbia Small Cap Index 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
$
10		0.20
%
Expenses Paid, Amount $ 10
Expense Ratio, Percent 0.20%
Net Assets $ 3,277,016,446
Holdings Count | Holding 608
Investment Company, Portfolio Turnover 11.00%
Additional Fund Statistics [Text Block]
Key Fund
Statistics
Fund net assets
$
3,277,016,446
Total number of portfolio holdings608
Portfolio turnover for the reporting period 11%
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
iShares Core S&P Small-Cap ETF1.1
%
Fabrinet0.7
%
Ensign Group, Inc. (The)0.6
%
Mueller Industries, Inc.0.6
%
ATI, Inc.0.6
%
Comerica, Inc.0.6
%
SPX Technologies, Inc.0.6
%
SPS Commerce, Inc.0.6
%
Meritage Homes Corp.0.5
%
Carpenter Technology Corp.0.5
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
iShares Core S&P Small-Cap ETF1.1
%
Fabrinet0.7
%
Ensign Group, Inc. (The)0.6
%
Mueller Industries, Inc.0.6
%
ATI, Inc.0.6
%
Comerica, Inc.0.6
%
SPX Technologies, Inc.0.6
%
SPS Commerce, Inc.0.6
%
Meritage Homes Corp.0.5
%
Carpenter Technology Corp.0.5
%