Shareholder Report |
6 Months Ended | |||||||||||||||||||||
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Apr. 30, 2025
USD ($)
Holding
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Shareholder Report [Line Items] | ||||||||||||||||||||||
Document Type | N-CSRS | |||||||||||||||||||||
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 | Apr. 30, 2025 | |||||||||||||||||||||
Columbia Seligman Global Technology Fund - Class A | ||||||||||||||||||||||
Shareholder Report [Line Items] | ||||||||||||||||||||||
Fund Name | Columbia Seligman Global Technology Fund | |||||||||||||||||||||
Class Name | Class A | |||||||||||||||||||||
Trading Symbol | SHGTX | |||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Columbia Seligman Global Technology Fund (the Fund) for the period of November 1, 2024 to April 30, 2025. | |||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature . You can also request more information by contacting us at 1-800-345-6611.
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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)
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Expenses Paid, Amount | $ 61 | |||||||||||||||||||||
Expense Ratio, Percent | 1.26% | [1] | ||||||||||||||||||||
Net Assets | $ 2,128,392,277 | |||||||||||||||||||||
Holdings Count | Holding | 68 | |||||||||||||||||||||
Investment Company, Portfolio Turnover | 11.00% | |||||||||||||||||||||
Additional Fund Statistics [Text Block] | Key Fund Statistics
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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
Equity Sector Allocation ![]() Information Technology Sub-industry Allocation ![]() |
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Largest Holdings [Text Block] | Top Holdings
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Columbia Seligman Global Technology Fund - Class C | ||||||||||||||||||||||
Shareholder Report [Line Items] | ||||||||||||||||||||||
Fund Name | Columbia Seligman Global Technology Fund | |||||||||||||||||||||
Class Name | Class C | |||||||||||||||||||||
Trading Symbol | SHTCX | |||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Columbia Seligman Global Technology Fund (the Fund) for the period of November 1, 2024 to April 30, 2025. | |||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature . You can also request more information by contacting us at 1-800-345-6611.
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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)
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Expenses Paid, Amount | $ 96 | |||||||||||||||||||||
Expense Ratio, Percent | 2.01% | [1] | ||||||||||||||||||||
Net Assets | $ 2,128,392,277 | |||||||||||||||||||||
Holdings Count | Holding | 68 | |||||||||||||||||||||
Investment Company, Portfolio Turnover | 11.00% | |||||||||||||||||||||
Additional Fund Statistics [Text Block] | Key Fund Statistics
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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
Equity Sector Allocation ![]() Information Technology Sub-industry Allocation ![]() |
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Largest Holdings [Text Block] | Top Holdings
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Columbia Seligman Global Technology Fund - Institutional Class | ||||||||||||||||||||||
Shareholder Report [Line Items] | ||||||||||||||||||||||
Fund Name | Columbia Seligman Global Technology Fund | |||||||||||||||||||||
Class Name | Institutional Class | |||||||||||||||||||||
Trading Symbol | CSGZX | |||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Columbia Seligman Global Technology Fund (the Fund) for the period of November 1, 2024 to April 30, 2025. | |||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature . You can also request more information by contacting us at 1-800-345-6611.
|
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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)
|
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Expenses Paid, Amount | $ 49 | |||||||||||||||||||||
Expense Ratio, Percent | 1.01% | [1] | ||||||||||||||||||||
Net Assets | $ 2,128,392,277 | |||||||||||||||||||||
Holdings Count | Holding | 68 | |||||||||||||||||||||
Investment Company, Portfolio Turnover | 11.00% | |||||||||||||||||||||
Additional Fund Statistics [Text Block] | Key Fund Statistics
|
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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
Equity Sector Allocation ![]() Information Technology Sub-industry Allocation ![]() |
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Largest Holdings [Text Block] | Top Holdings
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Columbia Seligman Global Technology Fund - Institutional 2 Class | ||||||||||||||||||||||
Shareholder Report [Line Items] | ||||||||||||||||||||||
Fund Name | Columbia Seligman Global Technology Fund | |||||||||||||||||||||
Class Name | Institutional 2 Class | |||||||||||||||||||||
Trading Symbol | SGTTX | |||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Columbia Seligman Global Technology Fund (the Fund) for the period of November 1, 2024 to April 30, 2025. | |||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature . You can also request more information by contacting us at 1-800-345-6611.
|
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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)
|
|||||||||||||||||||||
Expenses Paid, Amount | $ 46 | |||||||||||||||||||||
Expense Ratio, Percent | 0.96% | [1] | ||||||||||||||||||||
Net Assets | $ 2,128,392,277 | |||||||||||||||||||||
Holdings Count | Holding | 68 | |||||||||||||||||||||
Investment Company, Portfolio Turnover | 11.00% | |||||||||||||||||||||
Additional Fund Statistics [Text Block] | Key Fund Statistics
|
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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
Equity Sector Allocation ![]() Information Technology Sub-industry Allocation ![]() |
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Largest Holdings [Text Block] | Top Holdings
|
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Columbia Seligman Global Technology Fund - Institutional 3 Class | ||||||||||||||||||||||
Shareholder Report [Line Items] | ||||||||||||||||||||||
Fund Name | Columbia Seligman Global Technology Fund | |||||||||||||||||||||
Class Name | Institutional 3 Class | |||||||||||||||||||||
Trading Symbol | CGTYX | |||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Columbia Seligman Global Technology Fund (the Fund) for the period of November 1, 2024 to April 30, 2025. | |||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature . You can also request more information by contacting us at 1-800-345-6611.
|
|||||||||||||||||||||
Additional Information Phone Number | 1-800-345-6611 | |||||||||||||||||||||
Additional Information Website | columbiathreadneedleus.com/resources/literature | |||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment)
|
|||||||||||||||||||||
Expenses Paid, Amount | $ 44 | |||||||||||||||||||||
Expense Ratio, Percent | 0.91% | [1] | ||||||||||||||||||||
Net Assets | $ 2,128,392,277 | |||||||||||||||||||||
Holdings Count | Holding | 68 | |||||||||||||||||||||
Investment Company, Portfolio Turnover | 11.00% | |||||||||||||||||||||
Additional Fund Statistics [Text Block] | Key Fund Statistics
|
|||||||||||||||||||||
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
Equity Sector Allocation ![]() Information Technology Sub-industry Allocation ![]() |
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Largest Holdings [Text Block] | Top Holdings
|
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Columbia Seligman Global Technology Fund - Class R | ||||||||||||||||||||||
Shareholder Report [Line Items] | ||||||||||||||||||||||
Fund Name | Columbia Seligman Global Technology Fund | |||||||||||||||||||||
Class Name | Class R | |||||||||||||||||||||
Trading Symbol | SGTRX | |||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Columbia Seligman Global Technology Fund (the Fund) for the period of November 1, 2024 to April 30, 2025. | |||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature . You can also request more information by contacting us at 1-800-345-6611.
|
|||||||||||||||||||||
Additional Information Phone Number | 1-800-345-6611 | |||||||||||||||||||||
Additional Information Website | columbiathreadneedleus.com/resources/literature | |||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment)
|
|||||||||||||||||||||
Expenses Paid, Amount | $ 73 | |||||||||||||||||||||
Expense Ratio, Percent | 1.51% | [1] | ||||||||||||||||||||
Net Assets | $ 2,128,392,277 | |||||||||||||||||||||
Holdings Count | Holding | 68 | |||||||||||||||||||||
Investment Company, Portfolio Turnover | 11.00% | |||||||||||||||||||||
Additional Fund Statistics [Text Block] | Key Fund Statistics
|
|||||||||||||||||||||
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
Equity Sector Allocation ![]() Information Technology Sub-industry Allocation ![]() |
|||||||||||||||||||||
Largest Holdings [Text Block] | Top Holdings
|
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Columbia Seligman Global Technology Fund - Class S | ||||||||||||||||||||||
Shareholder Report [Line Items] | ||||||||||||||||||||||
Fund Name | Columbia Seligman Global Technology Fund | |||||||||||||||||||||
Class Name | Class S | |||||||||||||||||||||
Trading Symbol | CSGAX | |||||||||||||||||||||
Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about Columbia Seligman Global Technology Fund (the Fund) for the period of November 1, 2024 to April 30, 2025. | |||||||||||||||||||||
Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |||||||||||||||||||||
Additional Information [Text Block] | You can find additional information about the Fund at columbiathreadneedleus.com/resources/literature . You can also request more information by contacting us at 1-800-345-6611.
|
|||||||||||||||||||||
Additional Information Phone Number | 1-800-345-6611 | |||||||||||||||||||||
Additional Information Website | columbiathreadneedleus.com/resources/literature | |||||||||||||||||||||
Expenses [Text Block] | What were the Fund costs for the reporting period? (Based on a hypothetical $10,000 investment)
|
|||||||||||||||||||||
Expenses Paid, Amount | $ 49 | |||||||||||||||||||||
Expense Ratio, Percent | 1.01% | [1] | ||||||||||||||||||||
Net Assets | $ 2,128,392,277 | |||||||||||||||||||||
Holdings Count | Holding | 68 | |||||||||||||||||||||
Investment Company, Portfolio Turnover | 11.00% | |||||||||||||||||||||
Additional Fund Statistics [Text Block] | Key Fund Statistics
|
|||||||||||||||||||||
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
Equity Sector Allocation ![]() Information Technology Sub-industry Allocation ![]() |
|||||||||||||||||||||
Largest Holdings [Text Block] | Top Holdings
|
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