Columbia Emerging Markets Fund (EEMAX) N-CSR3 Oct 24Certified annual shareholder report (management investment company)Financial data

Company Profile

Form N-CSR Cover

Form N-CSR Cover	12 Months Ended
Form N-CSR Cover	Jul. 31, 2024
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	Columbia Funds Series Trust I
Entity Central Index Key	0000773757
Entity Investment Company Type	N-1A
Document Period End Date	Jul. 31, 2024

Shareholder Report

Shareholder Report	12 Months Ended
Shareholder Report	Jul. 31, 2024 USD ($) Holding Holdings
Shareholder Report [Line Items]
Document Type	N-CSR
Amendment Flag	false
Registrant Name	Columbia Funds Series Trust I
Entity Central Index Key	0000773757
Entity Investment Company Type	N-1A
Document Period End Date	Jul. 31, 2024
Columbia Large Cap Growth Fund Class A
Shareholder Report [Line Items]
Fund Name	Columbia Large Cap Growth Fund
Class Name	Class A
Trading Symbol	LEGAX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Columbia Large Cap Growth Fund (the Fund) for the period of August 1, 2023 to July 31, 2024.
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 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 Class A $ 0.98 %
Expenses Paid, Amount	$ 111
Expense Ratio, Percent	0.98%
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 Stock selection Allocations Individual holdings Top Performance Detractors Stock selection Allocations Individual holdings
Performance Past Does Not Indicate Future [Text]	Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Average Annual Return [Table Text Block]	Average Annual Total Returns (%) 1 year 5 years 10 years Class A (excluding sales charges) (a) 27.17 16.92 14.89 Class A (including sales charges) (a) 19.86 15.54 14.21 Russell 1000 Growth Index 26.94 18.41 16.31 Russell 1000 Index 21.50 14.59 12.86 (a) Effective August 1, 2024, the Fund compares its performance to the Russell 1000 Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark Fund
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
Net Assets	$ 5,697,065,640
Holdings Count \| Holding	47
Advisory Fees Paid, Amount	$ 32,464,989
Investment Company, Portfolio Turnover	39%
Additional Fund Statistics [Text Block]	Key Fund Statistics Fund net assets $ Total number of portfolio holdings 47 Management services fees $ Portfolio turnover for the reporting period 39%
Holdings [Text Block]	Graphical Representation of Fund 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 NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 % Equity Sector Allocation Information Technology Sub-industry Allocation
Largest Holdings [Text Block]	Top Holdings NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 %
Columbia Large Cap Growth Fund - Advisor Class
Shareholder Report [Line Items]
Fund Name	Columbia Large Cap Growth Fund
Class Name	Advisor Class
Trading Symbol	CCGRX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Columbia Large Cap Growth Fund (the Fund) for the period of August 1, 2023 to July 31, 2024.
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 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 Class Cost of a $10,000 investment Cost paid as a percentage of a $ 10,000 Advisor Class $ 0.73 %
Expenses Paid, Amount	$ 83
Expense Ratio, Percent	0.73%
Factors Affecting Performance [Text Block]	Management's Discussion of Fund Performance The performance of Advisor Class shares for the period presented is shown in the Average Annual Total Returns table. Top Performance Contributors Stock selection Allocations Individual holdings Top Performance Detractors Stock selection Allocations Individual holdings
Performance Past Does Not Indicate Future [Text]	Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Average Annual Return [Table Text Block]	Average Annual Total Returns (%) 1 year 5 years 10 years Advisor Class (a) 27.48 17.21 15.18 Russell 1000 Growth Index 26.94 18.41 16.31 Russell 1000 Index 21.50 14.59 12.86 (a) Effective August 1, 2024, the Fund compares its performance to the Russell 1000 Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests.
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
Net Assets	$ 5,697,065,640
Holdings Count \| Holding	47
Advisory Fees Paid, Amount	$ 32,464,989
Investment Company, Portfolio Turnover	39%
Additional Fund Statistics [Text Block]	Key Fund Statistics Fund net assets $ Total number of portfolio holdings 47 Management services fees $ Portfolio turnover for the reporting period 39%
Holdings [Text Block]	Graphical Representation of Fund 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 NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 % Equity Sector Allocation Information Technology Sub-industry Allocation
Largest Holdings [Text Block]	Top Holdings NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 %
Columbia Large Cap Growth Fund - Class C
Shareholder Report [Line Items]
Fund Name	Columbia Large Cap Growth Fund
Class Name	Class C
Trading Symbol	LEGCX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Columbia Large Cap Growth Fund (the Fund) for the period of August 1, 2023 to July 31, 2024.
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 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 Class C $ 1.73 %
Expenses Paid, Amount	$ 196
Expense Ratio, Percent	1.73%
Factors Affecting Performance [Text Block]	Management's Discussion of Fund Performance The performance of Class C shares for the period presented is shown in the Average Annual Total Returns table. Top Performance Contributors Stock selection Allocations Individual holdings Top Performance Detractors Stock selection Allocations Individual holdings
Performance Past Does Not Indicate Future [Text]	Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Average Annual Return [Table Text Block]	Average Annual Total Returns (%) 1 year 5 years 10 years Class C (excluding sales charges) (a) 26.21 16.04 14.03 Class C (including sales charges) (a) 25.21 16.04 14.03 Russell 1000 Growth Index 26.94 18.41 16.31 Russell 1000 Index 21.50 14.59 12.86 (a) Effective August 1, 2024, the Fund compares its performance to the Russell 1000 Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests.
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
Net Assets	$ 5,697,065,640
Holdings Count \| Holdings	47
Advisory Fees Paid, Amount	$ 32,464,989
Investment Company, Portfolio Turnover	39%
Additional Fund Statistics [Text Block]	Key Fund Statistics Fund net assets $ Total number of portfolio holdings 47 Management services fees $ Portfolio turnover for the reporting period 39%
Holdings [Text Block]	Graphical Representation of Fund 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 NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 % Equity Sector Allocation Information Technology Sub-industry Allocation
Largest Holdings [Text Block]	Top Holdings NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 %
Columbia Large Cap Growth Fund - Class E
Shareholder Report [Line Items]
Fund Name	Columbia Large Cap Growth Fund
Class Name	Class E
Trading Symbol	CLGEX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Columbia Large Cap Growth Fund (the Fund) for the period of August 1, 2023 to July 31, 2024.
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 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 Class E $ 1.27 %
Expenses Paid, Amount	$ 144
Expense Ratio, Percent	1.27%
Factors Affecting Performance [Text Block]	Management's Discussion of Fund Performance The performance of Class E shares for the period presented is shown in the Average Annual Total Returns table. Top Performance Contributors Stock selection Allocations Individual holdings Top Performance Detractors Stock selection Allocations Individual holdings
Performance Past Does Not Indicate Future [Text]	Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Average Annual Return [Table Text Block]	Average Annual Total Returns (%) 1 year 5 years 10 years Class E (excluding sales charges) (a) 26.80 16.61 14.68 Class E (including sales charges) (a) 21.10 15.54 14.16 Russell 1000 Growth Index 26.94 18.41 16.31 Russell 1000 Index 21.50 14.59 12.86 (a) Effective August 1, 2024, the Fund compares its performance to the Russell 1000 Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests.
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
Net Assets	$ 5,697,065,640
Holdings Count \| Holdings	47
Advisory Fees Paid, Amount	$ 32,464,989
Investment Company, Portfolio Turnover	39%
Additional Fund Statistics [Text Block]	Key Fund Statistics Fund net assets $ Total number of portfolio holdings 47 Management services fees $ Portfolio turnover for the reporting period 39%
Holdings [Text Block]	Graphical Representation of Fund 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 NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 % Equity Sector Allocation Information Technology Sub-industry Allocation
Largest Holdings [Text Block]	Top Holdings NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 %
Columbia Large Cap Growth Fund - Institutional Class
Shareholder Report [Line Items]
Fund Name	Columbia Large Cap Growth Fund
Class Name	Institutional Class
Trading Symbol	GEGTX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Columbia Large Cap Growth Fund (the Fund) for the period of August 1, 2023 to July 31, 2024.
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 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 Class Cost of a $10,000 investment Cost paid as a percentage of a $10,000 investment Institutional Class $ 0.73 %
Expenses Paid, Amount	$ 83
Expense Ratio, Percent	0.73%
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 Stock selection Allocations Individual holdings Top Performance Detractors Stock selection Allocations Individual holdings
Performance Past Does Not Indicate Future [Text]	Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Average Annual Return [Table Text Block]	Average Annual Total Returns (%) 1 year 5 years 10 years Institutional Class (a) 27.48 17.21 15.18 Russell 1000 Growth Index 26.94 18.41 16.31 Russell 1000 Index 21.50 14.59 12.86 (a) Effective August 1, 2024, the Fund compares its performance to the Russell 1000 Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests.
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
Net Assets	$ 5,697,065,640
Holdings Count \| Holdings	47
Advisory Fees Paid, Amount	$ 32,464,989
Investment Company, Portfolio Turnover	39%
Additional Fund Statistics [Text Block]	Key Fund Statistics Fund net assets $ Total number of portfolio holdings 47 Management services fees $ Portfolio turnover for the reporting period 39%
Holdings [Text Block]	Graphical Representation of Fund 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 NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 % Equity Sector Allocation Information Technology Sub-industry Allocation
Largest Holdings [Text Block]	Top Holdings NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 %
Columbia Large Cap Growth Fund (Institutional 2 Class)
Shareholder Report [Line Items]
Fund Name	Columbia Large Cap Growth Fund
Class Name	Institutional 2 Class
Trading Symbol	CLWFX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Columbia Large Cap Growth Fund (the Fund) for the period of August 1, 2023 to July 31, 2024.
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 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 Institutional 2 Class $ 0.71 %
Expenses Paid, Amount	$ 81
Expense Ratio, Percent	0.71%
Factors Affecting Performance [Text Block]	Allocations Individual holdings Allocations Individual holdings
Performance Past Does Not Indicate Future [Text]	Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Average Annual Return [Table Text Block]	Average Annual Total Returns (%) 1 year 5 years 10 years Institutional 2 Class (a) 27.50 17.24 15.24 Russell 1000 Growth Index 26.94 18.41 16.31 Russell 1000 Index 21.50 14.59 12.86 (a) Effective August 1, 2024, the Fund compares its performance to the Russell 1000 Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests.
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
Net Assets	$ 5,697,065,640
Holdings Count \| Holdings	47
Advisory Fees Paid, Amount	$ 32,464,989
Investment Company, Portfolio Turnover	39%
Additional Fund Statistics [Text Block]	Fund net assets $ Total number of portfolio holdings 47 Management services fees $ Portfolio t urnove 39%
Holdings [Text Block]	Graphical Representation of Fund 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 NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 % Equity Sector Allocation Information Technology Sub-industry Allocation
Largest Holdings [Text Block]	Top Holdings NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 %
Columbia Large Cap Growth Fund (Institutional 3 Class)
Shareholder Report [Line Items]
Fund Name	Columbia Large Cap Growth Fund
Class Name	Institutional 3 Class
Trading Symbol	CGFYX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Columbia Large Cap Growth Fund (the Fund) for the period of August 1, 2023 to July 31, 2024.
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 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 Institutional 3 Class $ 0.66 %
Expenses Paid, Amount	$ 75
Expense Ratio, Percent	0.66%
Factors Affecting Performance [Text Block]	Allocations Individual holdings Allocations Individual holdings
Performance Past Does Not Indicate Future [Text]	Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Average Annual Return [Table Text Block]	Average Annual Total Returns (%) 1 year 5 years 10 years Institutional 3 Class (a) 27.58 17.30 15.30 Russell 1000 Growth Index 26.94 18.41 16.31 Russell 1000 Index 21.50 14.59 12.86 (a) Effective August 1, 2024, the Fund compares its performance to the Russell 1000 Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests.
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
Net Assets	$ 5,697,065,640
Holdings Count \| Holdings	47
Advisory Fees Paid, Amount	$ 32,464,989
Investment Company, Portfolio Turnover	39%
Additional Fund Statistics [Text Block]	Key Fund Statistics Fund net assets $ Total number of portfolio holdings 47 Management services fees $ Portfolio turnover for the reporting period 39%
Holdings [Text Block]	Graphical Representation of Fund 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 oth erwise Top Holdings NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alph abet, I 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 % Equity Sector Allocation Information Technology Sub-industry Allocation
Largest Holdings [Text Block]	Top Holdings NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alph abet, I 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 %
Columbia Large Cap Growth Fund (Class R)
Shareholder Report [Line Items]
Fund Name	Columbia Large Cap Growth Fund
Class Name	Class R
Trading Symbol	CGWRX
Annual or Semi-Annual Statement [Text Block]	This annual shareholder report contains important information about Columbia Large Cap Growth Fund (the Fund) for the period of August 1, 2023 to July 31, 2024.
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 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 Class R $ 1.23 %
Expenses Paid, Amount	$ 140
Expense Ratio, Percent	1.23%
Factors Affecting Performance [Text Block]	Allocations Individual holdings Allocations Individual holdings
Performance Past Does Not Indicate Future [Text]	Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Average Annual Return [Table Text Block]	Average Annual Total Returns (%) 1 year 5 years 10 years Class R (a) 26.85 16.62 14.60 Russell 1000 Growth Index 26.94 18.41 16.31 Russell 1000 Index 21.50 14.59 12.86 (a) Effective August 1, 2024, the Fund compares its performance to the Russell 1000 Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests.
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
Net Assets	$ 5,697,065,640
Holdings Count \| Holdings	47
Advisory Fees Paid, Amount	$ 32,464,989
Investment Company, Portfolio Turnover	39%
Additional Fund Statistics [Text Block]	Key Fund Statistics Fund net assets $ Total number of portfolio holdings 47 Management services fees $ Portfolio turnover for the reporting period 39%
Holdings [Text Block]	Graphical Representation of Fund 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 Fu Top Holdings NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 % Equity Sector Allocation Information Technology Sub-industry Allocation
Largest Holdings [Text Block]	Top Holdings NVIDIA Corp. 10.9 % Apple, Inc. 10.6 % Microsoft Corp. 10.5 % Amazon.com, Inc. 7.2 % Meta Platforms, Inc., Class A 4.9 % Alphabet, Inc., Class C 4.2 % Eli Lilly & Co. 3.6 % Alphabet, Inc., Class A 3.5 % Visa, Inc., Class A 3.3 % Costco Wholesale Corp. 2.6 %

Shareholder Report, Line Graph

Shareholder Report, Line Graph (Details) - USD ($)	12 Months Ended
Shareholder Report, Line Graph (Details) - USD ($)	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2014
Columbia Large Cap Growth Fund (Class R)
Account Value [Line Items]
Line Graph and Table Measure Name	Class R
Account Value	$ 39,082	$ 30,810	$ 26,379	$ 31,997	$ 23,033	$ 18,117	$ 16,841	$ 14,399	$ 12,070	$ 12,220	$ 10,000
Columbia Large Cap Growth Fund (Institutional 3 Class)
Account Value [Line Items]
Line Graph and Table Measure Name	Institutional 3 Class
Account Value	$ 41,541	32,560	27,714	33,427	23,928	18,706	17,282	14,689	12,232	12,303	10,000
Columbia Large Cap Growth Fund (Institutional 2 Class)
Account Value [Line Items]
Line Graph and Table Measure Name	Institutional 2 Class
Account Value	$ 41,324	32,412	27,599	33,305	23,852	18,657	17,247	14,663	12,217	12,295	10,000
Columbia Large Cap Growth Fund - Institutional Class
Account Value [Line Items]
Line Graph and Table Measure Name	Institutional Class
Account Value	$ 41,085	32,228	27,452	33,135	23,735	18,573	17,180	14,616	12,188	12,280	10,000
Columbia Large Cap Growth Fund - Class E
Account Value [Line Items]
Line Graph and Table Measure Name	Class E (including sales charges)
Account Value	$ 37,580	29,638	25,402	30,832	22,203	17,431	16,183	13,816	11,561	11,688	9,551
Columbia Large Cap Growth Fund - Class C
Account Value [Line Items]
Line Graph and Table Measure Name	Class C (including sales charges)
Account Value	$ 37,177	29,457	25,352	30,902	22,356	17,667	16,507	14,186	11,949	12,159	10,000
Columbia Large Cap Growth Fund - Advisor Class
Account Value [Line Items]
Line Graph and Table Measure Name	Advisor Class
Account Value	$ 41,080	32,225	27,450	33,132	23,734	18,570	17,176	14,616	12,187	12,280	10,000
Columbia Large Cap Growth Fund Class A
Account Value [Line Items]
Line Graph and Table Measure Name	Class A (including sales charges)
Account Value	$ 37,770	29,700	25,362	30,687	22,039	17,288	16,031	13,672	11,431	11,545	9,424
Russell 1000 Growth Index [Member]
Account Value [Line Items]
Line Graph and Table Measure Name	Russell 1000 Growth Index
Account Value	$ 45,306	35,692	30,426	34,546	25,275	19,467	17,566	14,299	12,113	11,608	10,000
Russell 1000 Index [Member]
Account Value [Line Items]
Line Graph and Table Measure Name	Russell 1000 Index
Account Value	$ 33,519	$ 27,587	$ 24,424	$ 26,226	$ 19,009	$ 16,967	$ 15,710	$ 13,521	$ 11,661	$ 11,124	$ 10,000

Shareholder Report, Average Ann

Shareholder Report, Average Annual Return (Details)		12 Months Ended	60 Months Ended	120 Months Ended
Shareholder Report, Average Annual Return (Details)		Jul. 31, 2024	Jul. 31, 2024	Jul. 31, 2024
Columbia Large Cap Growth Fund (Class R)
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class R
Average Annual Return, Percent	[1]	26.85%	16.62%	14.60%
Columbia Large Cap Growth Fund (Institutional 3 Class)
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Institutional 3 Class
Average Annual Return, Percent	[1]	27.58%	17.30%	15.30%
Columbia Large Cap Growth Fund (Institutional 2 Class)
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Institutional 2 Class
Average Annual Return, Percent	[1]	27.50%	17.24%	15.24%
Columbia Large Cap Growth Fund - Institutional Class
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Institutional Class
Average Annual Return, Percent	[1]	27.48%	17.21%	15.18%
Columbia Large Cap Growth Fund - Class E
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class E (including sales charges)
Average Annual Return, Percent	[1]	21.10%	15.54%	14.16%
Columbia Large Cap Growth Fund - Class C
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class C (including sales charges)
Average Annual Return, Percent	[1]	25.21%	16.04%	14.03%
Columbia Large Cap Growth Fund - Advisor Class
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Advisor Class
Average Annual Return, Percent	[1]	27.48%	17.21%	15.18%
Columbia Large Cap Growth Fund Class A
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class A (including sales charges)
Average Annual Return, Percent	[1]	19.86%	15.54%	14.21%
Without Sales Load [Member] \| Columbia Large Cap Growth Fund - Class E
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class E (excluding sales charges)
Average Annual Return, Percent	[1]	26.80%	16.61%	14.68%
Without Sales Load [Member] \| Columbia Large Cap Growth Fund - Class C
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class C (excluding sales charges)
Average Annual Return, Percent	[1]	26.21%	16.04%	14.03%
Without Sales Load [Member] \| Columbia Large Cap Growth Fund Class A
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Class A (excluding sales charges)
Average Annual Return, Percent	[1]	27.17%	16.92%	14.89%
Russell 1000 Growth Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Russell 1000 Growth Index
Average Annual Return, Percent		26.94%	18.41%	16.31%
Russell 1000 Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name		Russell 1000 Index
Average Annual Return, Percent		21.50%	14.59%	12.86%

[1]Effective August 1, 2024, the Fund compares its performance to the Russell 1000 Index, a broad-based performance index that meets new regulatory requirements. The Fund’s performance is also compared to its prior benchmark, which more closely represents the market sectors and/or asset classes in which the Fund primarily invests.

Shareholder Report, Holdings (D

Shareholder Report, Holdings (Details)	Jul. 31, 2024
Columbia Large Cap Growth Fund Class A \| NVIDIA Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Columbia Large Cap Growth Fund Class A \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund Class A \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Columbia Large Cap Growth Fund Class A \| Amazon.com, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.20%
Columbia Large Cap Growth Fund Class A \| Meta Platforms, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Columbia Large Cap Growth Fund Class A \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Columbia Large Cap Growth Fund Class A \| Eli Lilly & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Columbia Large Cap Growth Fund Class A \| Alphabet, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Columbia Large Cap Growth Fund Class A \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund Class A \| Costco Wholesale Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Columbia Large Cap Growth Fund Class A \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	47.30%
Columbia Large Cap Growth Fund Class A \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.70%
Columbia Large Cap Growth Fund Class A \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13%
Columbia Large Cap Growth Fund Class A \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Columbia Large Cap Growth Fund Class A \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Columbia Large Cap Growth Fund Class A \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4%
Columbia Large Cap Growth Fund Class A \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund Class A \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Columbia Large Cap Growth Fund Class A \| Semiconductors [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Columbia Large Cap Growth Fund Class A \| Systems Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	14%
Columbia Large Cap Growth Fund Class A \| Technology Hardware Storage And Peripherals [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund Class A \| Application Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	5%
Columbia Large Cap Growth Fund Class A \| Semiconductor Materials And Equipment [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Columbia Large Cap Growth Fund Class A \| Electronic Manufacturing Services [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Columbia Large Cap Growth Fund - Advisor Class \| NVIDIA Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Columbia Large Cap Growth Fund - Advisor Class \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund - Advisor Class \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Columbia Large Cap Growth Fund - Advisor Class \| Amazon.com, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.20%
Columbia Large Cap Growth Fund - Advisor Class \| Meta Platforms, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Columbia Large Cap Growth Fund - Advisor Class \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Columbia Large Cap Growth Fund - Advisor Class \| Eli Lilly & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Columbia Large Cap Growth Fund - Advisor Class \| Alphabet, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Columbia Large Cap Growth Fund - Advisor Class \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund - Advisor Class \| Costco Wholesale Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Columbia Large Cap Growth Fund - Advisor Class \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	47.30%
Columbia Large Cap Growth Fund - Advisor Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.70%
Columbia Large Cap Growth Fund - Advisor Class \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13%
Columbia Large Cap Growth Fund - Advisor Class \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Columbia Large Cap Growth Fund - Advisor Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Columbia Large Cap Growth Fund - Advisor Class \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4%
Columbia Large Cap Growth Fund - Advisor Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund - Advisor Class \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Columbia Large Cap Growth Fund - Advisor Class \| Semiconductors [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Columbia Large Cap Growth Fund - Advisor Class \| Systems Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	14%
Columbia Large Cap Growth Fund - Advisor Class \| Technology Hardware Storage And Peripherals [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund - Advisor Class \| Application Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	5%
Columbia Large Cap Growth Fund - Advisor Class \| Semiconductor Materials And Equipment [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Columbia Large Cap Growth Fund - Advisor Class \| Electronic Manufacturing Services [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Columbia Large Cap Growth Fund - Class C \| NVIDIA Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Columbia Large Cap Growth Fund - Class C \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund - Class C \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Columbia Large Cap Growth Fund - Class C \| Amazon.com, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.20%
Columbia Large Cap Growth Fund - Class C \| Meta Platforms, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Columbia Large Cap Growth Fund - Class C \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Columbia Large Cap Growth Fund - Class C \| Eli Lilly & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Columbia Large Cap Growth Fund - Class C \| Alphabet, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Columbia Large Cap Growth Fund - Class C \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund - Class C \| Costco Wholesale Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Columbia Large Cap Growth Fund - Class C \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	47.30%
Columbia Large Cap Growth Fund - Class C \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.70%
Columbia Large Cap Growth Fund - Class C \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13%
Columbia Large Cap Growth Fund - Class C \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Columbia Large Cap Growth Fund - Class C \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Columbia Large Cap Growth Fund - Class C \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4%
Columbia Large Cap Growth Fund - Class C \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund - Class C \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Columbia Large Cap Growth Fund - Class C \| Semiconductors [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Columbia Large Cap Growth Fund - Class C \| Systems Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	14%
Columbia Large Cap Growth Fund - Class C \| Technology Hardware Storage And Peripherals [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund - Class C \| Application Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	5%
Columbia Large Cap Growth Fund - Class C \| Semiconductor Materials And Equipment [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Columbia Large Cap Growth Fund - Class C \| Electronic Manufacturing Services [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Columbia Large Cap Growth Fund - Class E \| NVIDIA Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Columbia Large Cap Growth Fund - Class E \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund - Class E \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Columbia Large Cap Growth Fund - Class E \| Amazon.com, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.20%
Columbia Large Cap Growth Fund - Class E \| Meta Platforms, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Columbia Large Cap Growth Fund - Class E \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Columbia Large Cap Growth Fund - Class E \| Eli Lilly & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Columbia Large Cap Growth Fund - Class E \| Alphabet, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Columbia Large Cap Growth Fund - Class E \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund - Class E \| Costco Wholesale Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Columbia Large Cap Growth Fund - Class E \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	47.30%
Columbia Large Cap Growth Fund - Class E \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.70%
Columbia Large Cap Growth Fund - Class E \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13%
Columbia Large Cap Growth Fund - Class E \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Columbia Large Cap Growth Fund - Class E \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Columbia Large Cap Growth Fund - Class E \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4%
Columbia Large Cap Growth Fund - Class E \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund - Class E \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Columbia Large Cap Growth Fund - Class E \| Semiconductors [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Columbia Large Cap Growth Fund - Class E \| Systems Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	14%
Columbia Large Cap Growth Fund - Class E \| Technology Hardware Storage And Peripherals [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund - Class E \| Application Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	5%
Columbia Large Cap Growth Fund - Class E \| Semiconductor Materials And Equipment [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Columbia Large Cap Growth Fund - Class E \| Electronic Manufacturing Services [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Columbia Large Cap Growth Fund - Institutional Class \| NVIDIA Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Columbia Large Cap Growth Fund - Institutional Class \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund - Institutional Class \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Columbia Large Cap Growth Fund - Institutional Class \| Amazon.com, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.20%
Columbia Large Cap Growth Fund - Institutional Class \| Meta Platforms, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Columbia Large Cap Growth Fund - Institutional Class \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Columbia Large Cap Growth Fund - Institutional Class \| Eli Lilly & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Columbia Large Cap Growth Fund - Institutional Class \| Alphabet, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Columbia Large Cap Growth Fund - Institutional Class \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund - Institutional Class \| Costco Wholesale Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Columbia Large Cap Growth Fund - Institutional Class \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	47.30%
Columbia Large Cap Growth Fund - Institutional Class \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.70%
Columbia Large Cap Growth Fund - Institutional Class \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13%
Columbia Large Cap Growth Fund - Institutional Class \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Columbia Large Cap Growth Fund - Institutional Class \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Columbia Large Cap Growth Fund - Institutional Class \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4%
Columbia Large Cap Growth Fund - Institutional Class \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund - Institutional Class \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Columbia Large Cap Growth Fund - Institutional Class \| Semiconductors [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Columbia Large Cap Growth Fund - Institutional Class \| Systems Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	14%
Columbia Large Cap Growth Fund - Institutional Class \| Technology Hardware Storage And Peripherals [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund - Institutional Class \| Application Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	5%
Columbia Large Cap Growth Fund - Institutional Class \| Semiconductor Materials And Equipment [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Columbia Large Cap Growth Fund - Institutional Class \| Electronic Manufacturing Services [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| NVIDIA Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Amazon.com, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.20%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Meta Platforms, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Eli Lilly & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Alphabet, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Costco Wholesale Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	47.30%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.70%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Semiconductors [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Systems Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	14%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Technology Hardware Storage And Peripherals [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Application Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	5%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Semiconductor Materials And Equipment [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Columbia Large Cap Growth Fund (Institutional 2 Class) \| Electronic Manufacturing Services [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| NVIDIA Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Amazon.com, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.20%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Meta Platforms, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Eli Lilly & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Alphabet, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Costco Wholesale Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	47.30%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.70%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Semiconductors [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Systems Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	14%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Technology Hardware Storage And Peripherals [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Application Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	5%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Semiconductor Materials And Equipment [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Columbia Large Cap Growth Fund (Institutional 3 Class) \| Electronic Manufacturing Services [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.30%
Columbia Large Cap Growth Fund (Class R) \| NVIDIA Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.90%
Columbia Large Cap Growth Fund (Class R) \| Apple, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund (Class R) \| Microsoft Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.50%
Columbia Large Cap Growth Fund (Class R) \| Amazon.com, Inc. [Member]
Holdings [Line Items]
Percent of Net Asset Value	7.20%
Columbia Large Cap Growth Fund (Class R) \| Meta Platforms, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.90%
Columbia Large Cap Growth Fund (Class R) \| Alphabet, Inc., Class C [Member]
Holdings [Line Items]
Percent of Net Asset Value	4.20%
Columbia Large Cap Growth Fund (Class R) \| Eli Lilly & Co. [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.60%
Columbia Large Cap Growth Fund (Class R) \| Alphabet, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.50%
Columbia Large Cap Growth Fund (Class R) \| Visa, Inc., Class A [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund (Class R) \| Costco Wholesale Corp. [Member]
Holdings [Line Items]
Percent of Net Asset Value	2.60%
Columbia Large Cap Growth Fund (Class R) \| Information Technology Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	47.30%
Columbia Large Cap Growth Fund (Class R) \| Communications Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13.70%
Columbia Large Cap Growth Fund (Class R) \| Consumer Discretionary Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	13%
Columbia Large Cap Growth Fund (Class R) \| Healthcare Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	11.30%
Columbia Large Cap Growth Fund (Class R) \| Industrial Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	5.70%
Columbia Large Cap Growth Fund (Class R) \| Consumer Staples Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	4%
Columbia Large Cap Growth Fund (Class R) \| Financial Services Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	3.30%
Columbia Large Cap Growth Fund (Class R) \| Unclassified Sector [Member]
Holdings [Line Items]
Percent of Net Asset Value	0.90%
Columbia Large Cap Growth Fund (Class R) \| Semiconductors [Member]
Holdings [Line Items]
Percent of Net Asset Value	14.80%
Columbia Large Cap Growth Fund (Class R) \| Systems Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	14%
Columbia Large Cap Growth Fund (Class R) \| Technology Hardware Storage And Peripherals [Member]
Holdings [Line Items]
Percent of Net Asset Value	10.60%
Columbia Large Cap Growth Fund (Class R) \| Application Software [Member]
Holdings [Line Items]
Percent of Net Asset Value	5%
Columbia Large Cap Growth Fund (Class R) \| Semiconductor Materials And Equipment [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.60%
Columbia Large Cap Growth Fund (Class R) \| Electronic Manufacturing Services [Member]
Holdings [Line Items]
Percent of Net Asset Value	1.30%