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Shareholder Report
 12 Months Ended
Feb. 28, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Columbia Funds Series Trust
Entity Central Index Key 0001097519
Entity Investment Company Type N-1A
Document Period End Date Feb. 28, 2025
Columbia Large Cap Index Fund - Class A  
Shareholder Report [Line Items]  
Fund Name Columbia Large Cap Index Fund
Class Name Class A
Trading Symbol NEIAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Columbia Large Cap Index Fund (the Fund) for the period of March 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. 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
$
49		0.45
%
Expenses Paid, Amount $ 49
Expense Ratio, Percent 0.45%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
The performance of Class A shares for the period presented is shown in the Average Annual Total Returns table.
Top Performance Contributors
Sectors
| The information technology, financials and communication services sectors were the top performing sectors, on an absolute basis, over the period.
Individual holdings
| Fund positions in NVIDIA Corp., a developer and provider of artificial intelligence solutions for various applications; Apple, Inc., a technology company specializing in consumer electronics and devices; Meta Platforms, Inc., owner and operator of Facebook, Instagram and other social media platforms; Broadcom, Inc., a semiconductor company; and Amazon.com, Inc., an online retailer and web services provider, were among the Fund’s top absolute contributors during the period.
Top Performance Detractors
Sectors
| The materials, real estate and energy sectors were the weakest performing sectors on an absolute basis.
Individual holdings
| Fund positions in Advanced Micro Devices, Inc., a semiconductor company that develops adaptive computing solutions; Intel Corp., a manufacturer of semiconductor technologies and solutions; Merck & Co., Inc., a biopharmaceutical company that develops medicines and vaccines; Microsoft Corp., a leading developer of computer software, operating systems and applications; and Adobe, Inc., a developer of printing, publishing and graphics software, were among the top absolute detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance .
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Class A17.8416.3412.48
S&P 500® Index18.41 16.85 12.98
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 3,176,678,411
Holdings Count | Holding 506
Advisory Fees Paid, Amount $ 7,056,588
Investment Company, Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
3,176,678,411
Total number of portfolio holdings506
Management services fees
(represents 0.20% of Fund average net assets)
$
7,056,588
Portfolio turnover for the reporting period6%
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
Apple, Inc.7.2
%
NVIDIA Corp.6.0
%
Microsoft Corp.5.8
%
Amazon.com, Inc.3.9
%
Meta Platforms, Inc., Class A2.9
%
Alphabet, Inc., Class A1.9
%
Berkshire Hathaway, Inc., Class B1.8
%
Broadcom, Inc.1.8
%
Alphabet, Inc., Class C1.6
%
Tesla, Inc.1.6
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Apple, Inc.7.2
%
NVIDIA Corp.6.0
%
Microsoft Corp.5.8
%
Amazon.com, Inc.3.9
%
Meta Platforms, Inc., Class A2.9
%
Alphabet, Inc., Class A1.9
%
Berkshire Hathaway, Inc., Class B1.8
%
Broadcom, Inc.1.8
%
Alphabet, Inc., Class C1.6
%
Tesla, Inc.1.6
%
Columbia Large Cap Index Fund - Institutional Class  
Shareholder Report [Line Items]  
Fund Name Columbia Large Cap Index Fund
Class Name Institutional Class
Trading Symbol NINDX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Columbia Large Cap Index Fund (the Fund) for the period of March 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. 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
$
22		0.20
%
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.20%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
The performance of Institutional Class shares for the period presented is shown in the Average Annual Total Returns table.
Top Performance Contributors
Sectors
| The information technology, financials and communication services sectors were the top performing sectors, on an absolute basis, over the period.
Individual holdings
| Fund positions in NVIDIA Corp., a developer and provider of artificial intelligence solutions for various applications; Apple, Inc., a technology company specializing in consumer electronics and devices; Meta Platforms, Inc., owner and operator of Facebook, Instagram and other social media platforms; Broadcom, Inc., a semiconductor company; and Amazon.com, Inc., an online retailer and web services provider, were among the Fund’s top absolute contributors during the period.
Top Performance Detractors
Sectors
| The materials, real estate and energy sectors were the weakest performing sectors on an absolute basis.
Individual holdings
| Fund positions in Advanced Micro Devices, Inc., a semiconductor company that develops adaptive computing solutions; Intel Corp., a manufacturer of semiconductor technologies and solutions; Merck & Co., Inc., a biopharmaceutical company that develops medicines and vaccines; Microsoft Corp., a leading developer of computer software, operating systems and applications; and Adobe, Inc., a developer of printing, publishing and graphics software, were among the top absolute detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance .
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Institutional Class18.14 16.63 12.76
S&P 500® Index18.41 16.85 12.98
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 3,176,678,411
Holdings Count | Holding 506
Advisory Fees Paid, Amount $ 7,056,588
Investment Company, Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
3,176,678,411
Total number of portfolio holdings506
Management services fees
(represents 0.20% of Fund average net assets)
$
7,056,588
Portfolio turnover for the reporting period6%
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
Apple, Inc.7.2
%
NVIDIA Corp.6.0
%
Microsoft Corp.5.8
%
Amazon.com, Inc.3.9
%
Meta Platforms, Inc., Class A2.9
%
Alphabet, Inc., Class A1.9
%
Berkshire Hathaway, Inc., Class B1.8
%
Broadcom, Inc.1.8
%
Alphabet, Inc., Class C1.6
%
Tesla, Inc.1.6
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Apple, Inc.7.2
%
NVIDIA Corp.6.0
%
Microsoft Corp.5.8
%
Amazon.com, Inc.3.9
%
Meta Platforms, Inc., Class A2.9
%
Alphabet, Inc., Class A1.9
%
Berkshire Hathaway, Inc., Class B1.8
%
Broadcom, Inc.1.8
%
Alphabet, Inc., Class C1.6
%
Tesla, Inc.1.6
%
Columbia Large Cap Index Fund - Institutional 2 Class  
Shareholder Report [Line Items]  
Fund Name Columbia Large Cap Index Fund
Class Name Institutional 2 Class
Trading Symbol CLXRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Columbia Large Cap Index Fund (the Fund) for the period of March 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. 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
$
22		0.20
%
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.20%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
The performance of Institutional 2 Class shares for the period presented is shown in the Average Annual Total Returns table.
Top Performance Contributors
Sectors
| The information technology, financials and communication services sectors were the top performing sectors, on an absolute basis, over the period.
Individual holdings
| Fund positions in NVIDIA Corp., a developer and provider of artificial intelligence solutions for various applications; Apple, Inc., a technology company specializing in consumer electronics and devices; Meta Platforms, Inc., owner and operator of Facebook, Instagram and other social media platforms; Broadcom, Inc., a semiconductor company; and Amazon.com, Inc., an online retailer and web services provider, were among the Fund’s top absolute contributors during the period.
Top Performance Detractors
Sectors
| The materials, real estate and energy sectors were the weakest performing sectors on an absolute basis.
Individual holdings
| Fund positions in Advanced Micro Devices, Inc., a semiconductor company that develops adaptive computing solutions; Intel Corp., a manufacturer of semiconductor technologies and solutions; Merck & Co., Inc., a biopharmaceutical company that develops medicines and vaccines; Microsoft Corp., a leading developer of computer software, operating systems and applications; and Adobe, Inc., a developer of printing, publishing and graphics software, were among the top absolute detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance .
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Institutional 2 Class18.13 16.63 12.76
S&P 500® Index18.41 16.85 12.98
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 3,176,678,411
Holdings Count | Holding 506
Advisory Fees Paid, Amount $ 7,056,588
Investment Company, Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
3,176,678,411
Total number of portfolio holdings506
Management services fees
(represents 0.20% of Fund average net assets)
$
7,056,588
Portfolio turnover for the reporting period6%
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
Apple, Inc.7.2
%
NVIDIA Corp.6.0
%
Microsoft Corp.5.8
%
Amazon.com, Inc.3.9
%
Meta Platforms, Inc., Class A2.9
%
Alphabet, Inc., Class A1.9
%
Berkshire Hathaway, Inc., Class B1.8
%
Broadcom, Inc.1.8
%
Alphabet, Inc., Class C1.6
%
Tesla, Inc.1.6
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Apple, Inc.7.2
%
NVIDIA Corp.6.0
%
Microsoft Corp.5.8
%
Amazon.com, Inc.3.9
%
Meta Platforms, Inc., Class A2.9
%
Alphabet, Inc., Class A1.9
%
Berkshire Hathaway, Inc., Class B1.8
%
Broadcom, Inc.1.8
%
Alphabet, Inc., Class C1.6
%
Tesla, Inc.1.6
%
Columbia Large Cap Index Fund - Institutional 3 Class  
Shareholder Report [Line Items]  
Fund Name Columbia Large Cap Index Fund
Class Name Institutional 3 Class
Trading Symbol CLPYX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Columbia Large Cap Index Fund (the Fund) for the period of March 1, 2024 to February 28, 2025.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. 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
$
22		0.20
%
Expenses Paid, Amount $ 22
Expense Ratio, Percent 0.20%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
The performance of Institutional 3 Class shares for the period presented is shown in the Average Annual Total Returns table.
Top Performance Contributors
Sectors
| The information technology, financials and communication services sectors were the top performing sectors, on an absolute basis, over the period.
Individual holdings
| Fund positions in NVIDIA Corp., a developer and provider of artificial intelligence solutions for various applications; Apple, Inc., a technology company specializing in consumer electronics and devices; Meta Platforms, Inc., owner and operator of Facebook, Instagram and other social media platforms; Broadcom, Inc., a semiconductor company; and Amazon.com, Inc., an online retailer and web services provider, were among the Fund’s top absolute contributors during the period.
Top Performance Detractors
Sectors
| The materials, real estate and energy sectors were the weakest performing sectors on an absolute basis.
Individual holdings
| Fund positions in Advanced Micro Devices, Inc., a semiconductor company that develops adaptive computing solutions; Intel Corp., a manufacturer of semiconductor technologies and solutions; Merck & Co., Inc., a biopharmaceutical company that develops medicines and vaccines; Microsoft Corp., a leading developer of computer software, operating systems and applications; and Adobe, Inc., a developer of printing, publishing and graphics software, were among the top absolute detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance .
Line Graph [Table Text Block] Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Institutional 3
Class
(a)
18.1416.6312.76
S&P 500® Index18.41 16.85 12.98
(a)
The returns shown for periods prior to March 1, 2017 (including Since Fund Inception returns, if shown) include the returns of Institutional Class. These returns are adjusted to reflect any higher class-related operating expenses of the newer share classes, as applicable. Please visit
columbiathreadneedleus.com/investment-products/mutual-funds/appended-performance
for more information.
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 3,176,678,411
Holdings Count | Holding 506
Advisory Fees Paid, Amount $ 7,056,588
Investment Company, Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
Key Fund Statistics
Fund net assets
$
3,176,678,411
Total number of portfolio holdings506
Management services fees
(represents 0.20% of Fund average net assets)
$
7,056,588
Portfolio turnover for the reporting period6%
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
Apple, Inc.7.2
%
NVIDIA Corp.6.0
%
Microsoft Corp.5.8
%
Amazon.com, Inc.3.9
%
Meta Platforms, Inc., Class A2.9
%
Alphabet, Inc., Class A1.9
%
Berkshire Hathaway, Inc., Class B1.8
%
Broadcom, Inc.1.8
%
Alphabet, Inc., Class C1.6
%
Tesla, Inc.1.6
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
Apple, Inc.7.2
%
NVIDIA Corp.6.0
%
Microsoft Corp.5.8
%
Amazon.com, Inc.3.9
%
Meta Platforms, Inc., Class A2.9
%
Alphabet, Inc., Class A1.9
%
Berkshire Hathaway, Inc., Class B1.8
%
Broadcom, Inc.1.8
%
Alphabet, Inc., Class C1.6
%
Tesla, Inc.1.6
%