v3.25.2
Shareholder Report
 12 Months Ended
Jul. 31, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Columbia Funds Series Trust II
Entity Central Index Key 0001352280
Entity Investment Company Type N-1A
Document Period End Date Jul. 31, 2025
Columbia Disciplined Growth Fund - Class A  
Shareholder Report [Line Items]  
Fund Name Columbia Disciplined Growth Fund
Class Name Class A
Trading Symbol RDLAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Columbia Disciplined Growth Fund (the Fund) for the period of August 1, 2024 to July 31, 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
$
115		1.06
%
Expenses Paid, Amount $ 115
Expense Ratio, Percent 1.06%
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
| Selections in the real estate sector contributed to performance relative to the benchmark.
Allocations
| Sector allocation within the consumer discretionary, consumer staples and health care sectors contributed to relative performance.
Individual holdings
| Top individual contributors to relative performance included Carvana Co., Fortinet, Inc. and Apple, Inc.
Top Performance Detractors
Stock selection
 
I
 
Selections in the health care, financials and energy sector were the largest detractors from performance relative to the benchmark.
Allocations
| Sector allocation within the utilities, materials and communication services sectors were the top three detracting sectors from relative performance.
Individual holdings
| Bottom individual detractors to relative performance included Fortrea Holdings, Inc., TopBuild Corp. and Netflix, Inc.
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of the Fund's 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 A (excluding sales charges)17.7315.8714.63
Class A (including sales charges)10.99 14.50 13.95
Russell 1000
®
Growth Index		23.7517.2717.06
Russell 1000
®
Index		16.5415.4913.38
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 $ 295,052,060
Holdings Count | Holding 68
Advisory Fees Paid, Amount $ 2,202,678
Investment Company, Portfolio Turnover 58.00%
Additional Fund Statistics [Text Block]
 
Key Fund Statistics
Fund net assets
$
295,052,060
Total number of portfolio holdings
68
Management services fees
(represents 0.75% of Fund average net assets)
$
2,202,678
Portfolio turnover for the reporting period
58%
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
NVIDIA Corp.10.4
%
Microsoft Corp.10.3
%
Apple, Inc.7.7
%
Meta Platforms, Inc., Class A6.4
%
Amazon.com, Inc.4.8
%
Alphabet, Inc., Class A4.8
%
Broadcom, Inc.4.4
%
Tesla, Inc.2.4
%
Arista Networks, Inc.2.3
%
Advanced Micro Devices, Inc.2.2
%
Equity Sector Allocation
Graphical Representation - Allocation 1 Chart
Information Technology Sub-industry Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
NVIDIA Corp.10.4
%
Microsoft Corp.10.3
%
Apple, Inc.7.7
%
Meta Platforms, Inc., Class A6.4
%
Amazon.com, Inc.4.8
%
Alphabet, Inc., Class A4.8
%
Broadcom, Inc.4.4
%
Tesla, Inc.2.4
%
Arista Networks, Inc.2.3
%
Advanced Micro Devices, Inc.2.2
%
Columbia Disciplined Growth Fund - Class C  
Shareholder Report [Line Items]  
Fund Name Columbia Disciplined Growth Fund
Class Name Class C
Trading Symbol RDLCX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Columbia Disciplined Growth Fund (the Fund) for the period of August 1, 2024 to July 31, 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 C
$
196		1.81
%
Expenses Paid, Amount $ 196
Expense Ratio, Percent 1.81%
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
| Selections in the real estate sector contributed to performance relative to the benchmark.
Allocations
| Sector allocation within the consumer discretionary, consumer staples and health care sectors contributed to relative performance.
Individual holdings
| Top individual contributors to relative performance included Carvana Co., Fortinet, Inc. and Apple, Inc.
Top Performance Detractors
Stock selection
 
I
 
Selections in the health care, financials and energy sector were the largest detractors from performance relative to the benchmark.
Allocations
| Sector allocation within the utilities, materials and communication services sectors were the top three detracting sectors from relative performance.
Individual holdings
| Bottom individual detractors to relative performance included Fortrea Holdings, Inc., TopBuild Corp. and Netflix, Inc.
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of the Fund's 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 C (excluding sales charges)16.8215.0113.77
Class C (including sales charges)15.82 15.01 13.77
Russell 1000
®
Growth Index		23.7517.2717.06
Russell 1000
®
Index		16.5415.4913.38
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 $ 295,052,060
Holdings Count | Holding 68
Advisory Fees Paid, Amount $ 2,202,678
Investment Company, Portfolio Turnover 58.00%
Additional Fund Statistics [Text Block]
 
Key Fund Statistics
Fund net assets
$
295,052,060
Total number of portfolio holdings
68
Management services fees
(represents 0.75% of Fund average net assets)
$
2,202,678
Portfolio turnover for the reporting period
58%
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
NVIDIA Corp.10.4
%
Microsoft Corp.10.3
%
Apple, Inc.7.7
%
Meta Platforms, Inc., Class A6.4
%
Amazon.com, Inc.4.8
%
Alphabet, Inc., Class A4.8
%
Broadcom, Inc.4.4
%
Tesla, Inc.2.4
%
Arista Networks, Inc.2.3
%
Advanced Micro Devices, Inc.2.2
%
Equity Sector Allocation
Graphical Representation - Allocation 1 Chart
Information Technology Sub-industry Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
NVIDIA Corp.10.4
%
Microsoft Corp.10.3
%
Apple, Inc.7.7
%
Meta Platforms, Inc., Class A6.4
%
Amazon.com, Inc.4.8
%
Alphabet, Inc., Class A4.8
%
Broadcom, Inc.4.4
%
Tesla, Inc.2.4
%
Arista Networks, Inc.2.3
%
Advanced Micro Devices, Inc.2.2
%
Columbia Disciplined Growth Fund - Institutional Class  
Shareholder Report [Line Items]  
Fund Name Columbia Disciplined Growth Fund
Class Name Institutional Class
Trading Symbol CLQZX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Columbia Disciplined Growth Fund (the Fund) for the period of August 1, 2024 to July 31, 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
$
88		0.81
%
Expenses Paid, Amount $ 88
Expense Ratio, Percent 0.81%
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
| Selections in the real estate sector contributed to performance relative to the benchmark.
Allocations
| Sector allocation within the consumer discretionary, consumer staples and health care sectors contributed to relative performance.
Individual holdings
| Top individual contributors to relative performance included Carvana Co., Fortinet, Inc. and Apple, Inc.
Top Performance Detractors
Stock selection
 
I
 
Selections in the health care, financials and energy sector were the largest detractors from performance relative to the benchmark.
Allocations
| Sector allocation within the utilities, materials and communication services sectors were the top three detracting sectors from relative performance.
Individual holdings
| Bottom individual detractors to relative performance included Fortrea Holdings, Inc., TopBuild Corp. and Netflix, Inc.
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of the Fund's 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 Class17.9816.1614.91
Russell 1000
®
Growth Index		23.7517.2717.06
Russell 1000
®
Index		16.5415.4913.38
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 $ 295,052,060
Holdings Count | Holding 68
Advisory Fees Paid, Amount $ 2,202,678
Investment Company, Portfolio Turnover 58.00%
Additional Fund Statistics [Text Block]
 
Key Fund Statistics
Fund net assets
$
295,052,060
Total number of portfolio holdings
68
Management services fees
(represents 0.75% of Fund average net assets)
$
2,202,678
Portfolio turnover for the reporting period
58%
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
NVIDIA Corp.10.4
%
Microsoft Corp.10.3
%
Apple, Inc.7.7
%
Meta Platforms, Inc., Class A6.4
%
Amazon.com, Inc.4.8
%
Alphabet, Inc., Class A4.8
%
Broadcom, Inc.4.4
%
Tesla, Inc.2.4
%
Arista Networks, Inc.2.3
%
Advanced Micro Devices, Inc.2.2
%
Equity Sector Allocation
Graphical Representation - Allocation 1 Chart
Information Technology Sub-industry Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
NVIDIA Corp.10.4
%
Microsoft Corp.10.3
%
Apple, Inc.7.7
%
Meta Platforms, Inc., Class A6.4
%
Amazon.com, Inc.4.8
%
Alphabet, Inc., Class A4.8
%
Broadcom, Inc.4.4
%
Tesla, Inc.2.4
%
Arista Networks, Inc.2.3
%
Advanced Micro Devices, Inc.2.2
%
Columbia Disciplined Growth Fund - Institutional 3 Class  
Shareholder Report [Line Items]  
Fund Name Columbia Disciplined Growth Fund
Class Name Institutional 3 Class
Trading Symbol CGQYX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Columbia Disciplined Growth Fund (the Fund) for the period of August 1, 2024 to July 31, 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
$
80		0.73
%
Expenses Paid, Amount $ 80
Expense Ratio, Percent 0.73%
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
Stock selection
| Selections in the real estate sector contributed to performance relative to the benchmark.
Allocations
| Sector allocation within the consumer discretionary, consumer staples and health care sectors contributed to relative performance.
Individual holdings
| Top individual contributors to relative performance included Carvana Co., Fortinet, Inc. and Apple, Inc.
Top Performance Detractors
Stock selection
 
I
 
Selections in the health care, financials and energy sector were the largest detractors from performance relative to the benchmark.
Allocations
| Sector allocation within the utilities, materials and communication services sectors were the top three detracting sectors from relative performance.
Individual holdings
| Bottom individual detractors to relative performance included Fortrea Holdings, Inc., TopBuild Corp. and Netflix, Inc.
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of the Fund's 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 Class18.12 16.26 15.04
Russell 1000
®
Growth Index		23.7517.2717.06
Russell 1000
®
Index		16.5415.4913.38
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 $ 295,052,060
Holdings Count | Holding 68
Advisory Fees Paid, Amount $ 2,202,678
Investment Company, Portfolio Turnover 58.00%
Additional Fund Statistics [Text Block]
 
Key Fund Statistics
Fund net assets
$
295,052,060
Total number of portfolio holdings
68
Management services fees
(represents 0.75% of Fund average net assets)
$
2,202,678
Portfolio turnover for the reporting period
58%
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
NVIDIA Corp.10.4
%
Microsoft Corp.10.3
%
Apple, Inc.7.7
%
Meta Platforms, Inc., Class A6.4
%
Amazon.com, Inc.4.8
%
Alphabet, Inc., Class A4.8
%
Broadcom, Inc.4.4
%
Tesla, Inc.2.4
%
Arista Networks, Inc.2.3
%
Advanced Micro Devices, Inc.2.2
%
Equity Sector Allocation
Graphical Representation - Allocation 1 Chart
Information Technology Sub-industry Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
NVIDIA Corp.10.4
%
Microsoft Corp.10.3
%
Apple, Inc.7.7
%
Meta Platforms, Inc., Class A6.4
%
Amazon.com, Inc.4.8
%
Alphabet, Inc., Class A4.8
%
Broadcom, Inc.4.4
%
Tesla, Inc.2.4
%
Arista Networks, Inc.2.3
%
Advanced Micro Devices, Inc.2.2
%