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2/19/2010 - 2/18/2011
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{dei_LegalEntityAxis} : Class Z Shares
2/19/2010 - 2/18/2011
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-Name Form
-Number N-1A
-Chapter A
-Section 2
falsefalse4false0rr_ObjectiveHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00INVESTMENT OBJECTIVEfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
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-Section 2
-Subsection a
falsefalse5false0rr_ObjectivePrimaryTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Columbia Seligman Global Technology Fund (the Fund) seeks to provide shareholders with long term capital appreciation.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringInvestment Objectives/Goals. Disclose the Fund's investment objectives or goals. A Fund also may identify its type or category (e.g., that it is a Money Market Fund or a balanced fund).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 2
-Subsection a
falsefalse6false0rr_ExpenseHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00FEES AND EXPENSES OF THE FUNDfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Summary Fee Table Includes the following information, in plain English under rule 421(d) under the Securities Act, after Item 2 Fees and expenses of the Fund This table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Shareholder Fees (fees paid directly from your investment) Example This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then you redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return per year and that the Fund's operating expenses remained the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be You would pay the following expenses if you did not redeem your shares The Example does not reflect sales charges (loads) on reinvested dividends [and other distributions]. If these sales charges (loads) were included, your costs would be higher. Portfolio Turnover The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover may indicate higher transaction costs. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was __% of the average value of its whole portfolio. Instructions. A.3.instructions.6 New Funds. For purposes of this Item, a "New Fund" is a Fund that does not include in Form N-1A financial statements reporting operating results or that includes financial statements for the Fund's initial fiscal year reporting operating results for a period of 6 months or less. The following Instructions apply to New Funds.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph d
-Subsection instructions
falsefalse7false0rr_ExpenseNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00This table describes the fees and expenses that you may pay if you buy and hold Class Z shares of the Fund.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThis table describes the fees and expenses that you may pay if you buy and hold shared of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $[_____] in [name of fund family] funds. Include the narrative explanations in the order indicated. A Fund may modify the narrative explanations if the explanation contains comparable information to that shown.The narrative explanation regarding sales charge discounts is only required by a Fund that offers such discounts and should specify the minimum level of investment required to qualify for a discount. Modify the narrative explanation to state that Fund shares are sold on a national securities exchange at the end of the time periods indicated, and that brokerage commissions for buying and selling Fund shares through a broker are not reflected.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph b
-Subsection instructions
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-Publisher SEC
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-Section 3
-Paragraph 1
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 2
-Subparagraph a
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falsefalse0rr_OperatingExpensesColumnNametruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00Class ZClass ZfalsefalsefalsetruefalseOthernanafalsefalse3falseRowprimaryElement*6false0rr_ManagementFeesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsetruetrue00falsefalsefalsetruefalse2truetruetrue0.00860.0086falsefalsefalsetruefalseOtherrr:NonNegativePure4TypepureManagement Fees include investment advisory fees (including any fees based on the Fund's performance), any other management fees payable to the investment adviser or its affiliates, and administrative fees payable to the investment adviser or its affiliates that are not included as "Other Expenses."Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph a
-Subsection instructions
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 1
-Subparagraph 9
-Subsection table
falsefalse0rr_DistributionAndService12b1FeesOverAssetstruefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2truetruetrue0.00000.0000falsefalsefalsetruefalseOthernanafalsefalse5falseRowprimaryElement*8false0rr_OtherExpensesOverAssetsrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsetruetrue00falsefalsefalsetruefalse2truetruetrue0.00440.0044[1]falsefalsefalsetruefalseOtherrr:NonNegativePure4Typepure"Other Expenses" include all expenses not otherwise disclosed in the table that are deducted from the Fund's assets or charged to all shareholder accounts. The amount of expenses deducted from the Fund's assets are the amounts shown as expenses in the Fund's statement of operations (including increases resulting from complying with paragraph 2(g) of rule 6-07 of Regulation S-X [17 CFR 210.6-07]). "Other Expenses" do not include extraordinary expenses as determined under generally accepted accounting principles (see Accounting Principles Board Opinion No. 30). If extraordinary expenses were incurred that materially affected the Fund's "Other Expenses," disclose in a footnote to the table what "Other Expenses" would have been had the extraordinary expenses been included.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph c
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subparagraph d
-Subsection instructions
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-Publisher SEC
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-Publisher SEC
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-Publisher SEC
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-Subparagraph 2
-Subsection example
falsefalsefalseUSDfalsefalse$1falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowdei_LegalEntityAxisAxis*Rowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2010-02-19T00:00:002011-02-18T00:00:00falsefalseColumbia Seligman Global Technology Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_S000031372Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseClass Z Sharesdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_ProspectusOneMemberdei_LegalEntityAxisexplicitMemberfalsefalseColumbia Seligman Global Technology Fund - Class Zrr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_C000097570Memberrr_ProspectusShareClassAxisexplicitMemberColumbia Seligman Global Technology FundClass Z SharesColumbia Seligman Global Technology Fund - Class ZUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso421700truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Class ZClass Zfalsefalsefalsetruefalse2truefalsetrue132132falsefalsefalsetruefalse3truefalsetrue412412falsefalsefalsetruefalse4truefalsetrue714714falsefalsefalsetruefalse5truefalsetrue573573falsefalsefalsetruefalseOthernanafalsefalse51Expense Example - Columbia Seligman Global Technology Fund (Class Z Shares)
(USD $)UnKnownUnKnownUnKnownUnKnownfalsetrueColumnprimaryElement*RowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowdei_LegalEntityAxisAxis*Rowrr_ProspectusShareClassAxisAxis*RowunitUnit*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to ExpenseExample.No authoritative reference available.falsefalse14false0rr_PortfolioTurnoverHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Portfolio TurnoverfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringDisclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 5
-Subsection instructions
falsefalse15false0rr_PortfolioTurnoverTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 111% of the average value of its portfolio.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDisclose the portfolio turnover rate provided in response to Item 14(a) for the most recent fiscal year (or for such shorter period as the Fund has been in operation). Disclose the period for which the information is provided if less than a full fiscal year. A Fund that is a Money Market Fund may omit the portfolio turnover information required by this Item.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subsection example
falsefalse16false0rr_PortfolioTurnoverRaterrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse1.111.11falsefalsefalsefalsefalseOtherxbrli:pureItemTypepureThis element represents the rate of portfolio turnover presented as a percentage (SEC Form N-1A 2006-09-14 A.3.example.3 Portfolio Turnover A.3.instructions.5 Portfolio Turnover).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 3
-Paragraph 3
-Subsection example
falsefalse17false0rr_StrategyHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00PRINCIPAL INVESTMENT STRATEGIES OF THE FUNDfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Subsection a
falsefalse18false0rr_StrategyNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>The Fund generally invests at least 80% of its assets (including any borrowings for investment purposes) in equity securities of U.S. and non-U.S. companies with business operations in technology and technology-related industries. For these purposes, technology-related companies are those companies that use technology extensively to improve their business processes and applications. The technology industry comprises information technology and communications, as well as medical, environmental and bio technology. The Fund may invest in securities of companies domiciled in any country which the investment manager believes to be appropriate to the Fund’s objective. The Fund generally invests in several countries in different geographic regions. The Fund will provide shareholders with at least 60 days’ written notice of any change in the 80% policy.</p><p>Under normal market conditions, the Fund generally will invest at least 40% of its net assets in companies that maintain their principal place of business or conduct their principal business activities outside the U.S., have their securities traded on non-U.S. exchanges or have been formed under the laws of non-U.S.countries. The investment manager may reduce this 40% minimum investment amount to 30% if it believes that market conditions for these types of companies or specific foreign markets are unfavorable. The Fund considers a company to conduct its principal business activities outside the U.S. if it derives at least 50% of its revenue from business outside the U.S. or had at least 50% of its assets outside the U.S.</p><p>The Fund may invest in companies of any size. Securities of large companies that are well established in the world technology market can be expected to grow with the market and will frequently be held by the Fund. However, rapidly changing technologies and expansion of technology and technology-related industries often provide a favorable environment for companies of small-to-medium size, and the Fund may invest in these companies as well.</p><p>The Fund may invest in all types of securities, many of which will be denominated in currencies other than the U.S. dollar. The Fund normally concentrates its investments in common stocks; however, it may invest in other types of equity securities, including securities convertible into or exchangeable for common stock, depositary receipts, and rights and warrants to purchase common stock. The Fund also may invest up to 20% of its assets in preferred stock and investment-grade or comparable quality debt securities.</p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringPrincipal investment strategies of the Fund. Summarize how the Fund intends to achieve its investment objectives by identifying the Fund's principal investment strategies (including the type or types of securities in which the Fund invests or will invest principally) and any policy to concentrate in securities of issuers in a particular industry or group of industries.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Subsection a
falsefalse19false0rr_RiskHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00PRINCIPAL RISKS OF INVESTING IN THE FUNDfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNarrative Risk Disclosure.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 1
-Subsection b
falsefalse20false0rr_RiskNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>Please remember that with any mutual fund investment you may lose money. Principal risks associated with an investment in the Fund include:</p><p><b>Active Management Risk.</b> Due to its active management, the Fund could underperform other mutual funds with similar investment objectives.</p><p><b>Risks of Foreign/Emerging Markets Investing.</b> Investments in foreign securities involve certain risks not associated with investments in U.S. companies. Foreign securities in the Fund’s portfolio subject the Fund to the risks associated with investing in the particular country, including the political, regulatory, economic, social and other conditions or events occurring in the country, as well as fluctuations in its currency and the risks associated with less developed custody and settlement practices.</p><p>Investments in emerging markets may present greater risk of loss than a typical foreign security investment. Because of the less developed markets and economics and less mature governments and governmental institutions, the risks of investing in foreign securities may be intensified in the case of investments in issuers organized, domiciled or doing business in emerging markets.</p><p><b>Issuer Risk.</b> An issuer may perform poorly, and therefore, the value of its securities may decline, which would negatively affect the Fund’s performance.</p><p><b>Market Risk.</b> The market value of securities may fall, fail to rise, or fluctuate, sometimes rapidly and unpredictably. Market risk may affect a single issuer, sector of the economy, industry, or the market as a whole. These risks are generally greater for small and mid-sized companies.</p><p><b>Sector Risk.</b> The Fund may invest significantly in securities of companies primarily engaged in the technology, media or telecommunications sectors. This may result in greater fluctuations in value than would be the case for a fund invested in a wider variety of industries.</p><p><b>Small and Mid-Sized Company Risk.</b> Investments in small and medium size companies often involve greater risks than investments in larger, more established companies, including less predictable earnings and lack of experienced management, financial resources, product diversification and competitive strengths.</p><p><b>Technology and Technology-Related Investment Risk.</b> The Fund will invest a substantial portion of its assets in technology and technology-related companies. The market prices of technology and technology-related stocks tend to exhibit a greater degree of market risk and price volatility than other types of investments.</p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringNarrative Risk Disclosure. A Fund may, in responding to this Item, describe the types of investors for whom the Fund is intended or the types of investment goals that may be consistent with an investment in the Fund.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 1
-Subparagraph i
-Clause instruction
-Subsection b
falsefalse21false0rr_BarChartAndPerformanceTableHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00PAST PERFORMANCEfalsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Bar Chart and Table.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subsection b
falsefalse22false0rr_PerformanceNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>Class Z shares have not had one full calendar year of performance as of the date of this prospectus and therefore performance is not yet available. The following bar chart and table provide some illustration of the risks of investing in the Fund by showing, for the Fund’s Class A shares (which are not offered in this prospectus), respectively:</p><p>• how the Fund’s Class A performance has varied for each full calendar year shown on the bar chart; and</p><p>• how the Fund’s Class A average annual total returns compare to recognized measures of market performance shown on the table.</p><p>The sales charge for Class A shares is not reflected in the bar chart or the table. Class Z shares are not subject to a sales charge. If the Class A sales charge was reflected, returns would be lower than those shown.</p><p>How the Fund has performed in the past (before and after taxes) does not indicate how the Fund will perform in the future. Updated performance information can be obtained by calling toll-free 800.345.6611 or visiting columbiamanagement.com.</p><p>After-tax returns are shown for Class A shares. After-tax returns for Class Z shares will vary. After-tax returns are calculated using the highest historical individual federal marginal income tax rate and do not reflect the impact of state and local taxes. Actual after-tax returns will depend on your tax situation and most likely will differ from the returns shown in the table. If you hold your shares in a tax-deferred account, such as a 401(k) plan or an IRA, the after-tax returns do not apply to you since you will not incur taxes until you begin to withdraw from your account.</p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringRisk/Return Bar Chart and Table.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subsection b
falsefalse23false0rr_BarChartHeadingrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00CLASS A ANNUAL TOTAL RETURNS (BEFORE SALES CHARGE)falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringRisk/Return Bar Chart and Table.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subsection b
falsefalse24false0rr_BarChartTableTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<div> <div style="display:none;">~ http://columbiamanagement.com/role/AnnualTotalReturnsBarchartColumbiaSeligmanGlobalTechnologyFundClassZShares column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row dei_DocumentInformationDocumentAxis compact cfst1352280_S000031372_Member * row dei_LegalEntityAxis compact cfst1352280_Prospectus_One_Member * ~</div> </div>falsefalseBarChart1.jpg<div> <div style="display:none;">~ http://columbiamanagement.com/role/AnnualTotalReturnsBarchartColumbiaSeligmanGlobalTechnologyFundClassZShares column period compact * column rr_ProspectusShareClassAxis compact * row primary compact * row dei_DocumentInformationDocumentAxis compact cfst1352280_S000031372_Member * row dei_LegalEntityAxis compact cfst1352280_Prospectus_One_Member * ~</div> </div>falsehttp://columbiamanagement.com/role/AnnualTotalReturnsBarchartColumbiaSeligmanGlobalTechnologyFundClassZSharesfalsefalse0200501 - Schedule - Annual Total Returns (Barchart) - Columbia Seligman Global Technology Fund (Class Z Shares)truefalsefalse1falseColumnperiodPeriod*Columndei_DocumentInformationDocumentAxisAxis*Columndei_LegalEntityAxisAxis*Columnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*duration2010-02-19T00:00:002011-02-18T00:00:00falsefalseColumbia Seligman Global Technology Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_S000031372Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseClass Z Sharesdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_ProspectusOneMemberdei_LegalEntityAxisexplicitMemberfalsefalseColumbia Seligman Global Technology Fund - Class Arr_ProspectusShareClassAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_C000097563Memberrr_ProspectusShareClassAxisexplicitMemberColumbia Seligman Global Technology FundClass Z SharesColumbia Seligman Global Technology Fund - Class AStandard0falseUSDfalsefalse$1falseRowprimaryElement*4false0rr_AnnualReturn2001rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.2178-0.2178falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph ii
-Subsection b
falsefalse0rr_AnnualReturn2001truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.2178-0.2178falsefalsefalsetruefalseOthernanafalsefalse2falseRowprimaryElement*5false0rr_AnnualReturn2002rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.3298-0.3298falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph ii
-Subsection b
falsefalse0rr_AnnualReturn2002truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.3298-0.3298falsefalsefalsetruefalseOthernanafalsefalse3falseRowprimaryElement*6false0rr_AnnualReturn2003rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.36150.3615falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph instructions
-Clause 3
-Exhibit a
-Subsection b
falsefalse0rr_AnnualReturn2003truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.36150.3615falsefalsefalsetruefalseOthernanafalsefalse4falseRowprimaryElement*7false0rr_AnnualReturn2004rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.04630.0463falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph instructions
-Clause 3
-Exhibit a
-Subsection b
falsefalse0rr_AnnualReturn2004truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.04630.0463falsefalsefalsetruefalseOthernanafalsefalse5falseRowprimaryElement*8false0rr_AnnualReturn2005rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.08140.0814falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph ii
-Subsection b
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph ii
-Subsection b
falsefalse0rr_AnnualReturn2006truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.18570.1857falsefalsefalsetruefalseOthernanafalsefalse7falseRowprimaryElement*10false0rr_AnnualReturn2007rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.14920.1492falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph instructions
-Clause 3
-Exhibit a
-Subsection b
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-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph ii
-Subsection b
falsefalse0rr_AnnualReturn2008truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse-0.4045-0.4045falsefalsefalsetruefalseOthernanafalsefalse9falseRowprimaryElement*12false0rr_AnnualReturn2009rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.63960.6396falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph instructions
-Clause 3
-Exhibit a
-Subsection b
falsefalse0rr_AnnualReturn2009truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.63960.6396falsefalsefalsetruefalseOthernanafalsefalse10falseRowprimaryElement*13false0rr_AnnualReturn2010rrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.15370.1537falsefalsefalsetruefalseOtherxbrli:pureItemTypepureIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart. When a Multiple Class Fund offers more than one Class in the prospectus, provide annual total returns in the bar chart for only one of those Classes. The Fund can select which Class to include (e.g., the oldest Class, the Class with the greatest net assets).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph ii
-Subsection b
falsefalse0rr_AnnualReturn2010truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truetruefalse0.15370.1537falsefalsefalsetruefalseOthernanafalsefalse110Annual Total Returns (Barchart) - Columbia Seligman Global Technology Fund (Class Z Shares)
UnKnownUnKnownUnKnownUnKnownfalsetrueColumnperiodPeriod*Columndei_DocumentInformationDocumentAxisAxis*Columndei_LegalEntityAxisAxis*Columnrr_ProspectusShareClassAxisAxis*ColumnunitUnit*RowprimaryElement*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to BarChartData.No authoritative reference available.falsefalse25false0rr_BarChartClosingTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00<p>During the periods shown:</p><p>• Highest return for a calendar quarter was +31.06% (quarter ended Dec. 31, 2001)</p><p>• Lowest return for a calendar quarter was -32.60% (quarter ended Sept. 30, 2001)</p>falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringIf the Fund has annual returns for at least one calendar year, provide a bar chart showing the Fund's annual total returns for each of the last 10 calendar years (or for the life of the Fund if less than 10 years), but only for periods subsequent to the effective date of the Fund's registration statement. Present the corresponding numerical return adjacent to each bar. If the Fund's fiscal year is other than a calendar year, include the year-to-date return information as of the end of the most recent quarter in a footnote to the bar chart. Following the bar chart, disclose the Fund's highest and lowest return for a quarter during the 10 years or other period of the bar chart.Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph ii
-Subsection b
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distributions[1]falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsefalsefalse4truetruetrue0.15210.1521falsefalsefalsetruefalse5truetruetrue0.08920.0892falsefalsefalsetruefalse6truetruetrue0.02160.0216falsefalsefalsetruefalseOthernanafalsefalse3falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*Rowdei_LegalEntityAxisAxis*Rowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2010-02-19T00:00:002011-02-18T00:00:00falsefalseColumbia Seligman Global Technology Funddei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_S000031372Memberdei_DocumentInformationDocumentAxisexplicitMemberfalsefalseafter taxes on distributions and redemption of fund sharesrr_PerformanceMeasureAxisxbrldihttp://xbrl.org/2006/xbrldirr_AfterTaxesOnDistributionsAndSalesMemberrr_PerformanceMeasureAxisexplicitMemberfalsefalseClass Z 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shares[1]falsefalsefalsetruefalse3falsefalsefalse00falsefalsefalsefalsefalse4truetruetrue0.10100.1010falsefalsefalsetruefalse5truetruetrue0.07770.0777falsefalsefalsetruefalse6truetruetrue0.01870.0187falsefalsefalsetruefalseOthernanafalsefalse4falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*Rowdei_LegalEntityAxisAxis*Rowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2010-02-19T00:00:002011-02-18T00:00:00falsefalseMSCI World IT Indexdei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_MSCIWorldITIndexMemberdei_DocumentInformationDocumentAxisexplicitMembertruefalsePerformance Measurerr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberfalsefalseClass Z Sharesdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_ProspectusOneMemberdei_LegalEntityAxisexplicitMembertruefalseShare 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Indexdei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_MSCIWorldIndexMemberdei_DocumentInformationDocumentAxisexplicitMembertruefalsePerformance Measurerr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberfalsefalseClass Z Sharesdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_ProspectusOneMemberdei_LegalEntityAxisexplicitMembertruefalseShare Classesrr_ProspectusShareClassAxisrr_ShareClassDomainrr_ProspectusShareClassAxisexplicitMemberMSCI World IndexPerformance MeasureClass Z SharesShare ClassesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsetruefalse00MSCI World IndexMSCI World Indexfalsefalsefalsetruefalse3falsefalsefalse00(reflects no deduction for fees, expenses or taxes)(reflects no deduction for fees, expenses or taxes)falsefalsefalsetruefalse4truetruetrue0.12340.1234falsefalsefalsetruefalse5truetruetrue0.02990.0299falsefalsefalsetruefalse6truetruetrue0.02820.0282falsefalsefalsetruefalseOthernanafalsefalse6falseRowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*Rowdei_LegalEntityAxisAxis*Rowrr_ProspectusShareClassAxisAxis*RowunitUnit*duration2010-02-19T00:00:002011-02-18T00:00:00falsefalseLipper Global Science and Technology Funds Indexdei_DocumentInformationDocumentAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_LipperGlobalScienceAndTechnologyFundsIndexMemberdei_DocumentInformationDocumentAxisexplicitMembertruefalsePerformance Measurerr_PerformanceMeasureAxisrr_PerformanceMeasureDomainrr_PerformanceMeasureAxisexplicitMemberfalsefalseClass Z Sharesdei_LegalEntityAxisxbrldihttp://xbrl.org/2006/xbrldicfst1352280_ProspectusOneMemberdei_LegalEntityAxisexplicitMembertruefalseShare Classesrr_ProspectusShareClassAxisrr_ShareClassDomainrr_ProspectusShareClassAxisexplicitMemberLipper Global Science and Technology Funds IndexPerformance MeasureClass Z SharesShare ClassesStandard00truefalsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsetruefalse00Lipper Global Science and Technology Funds IndexLipper Global Science and Technology Funds Indexfalsefalsefalsetruefalse3falsefalsefalse00(reflects no deduction for fees, expenses or taxes)(reflects no deduction for fees, expenses or taxes)falsefalsefalsetruefalse4truetruetrue0.23410.2341falsefalsefalsetruefalse5truetruetrue0.07500.0750falsefalsefalsetruefalse6truetruetrue0.00070.0007falsefalsefalsetruefalseOthernanafalsefalse1The returns shown are for Class A shares without the applicable front-end sales charge. Class Z shares, which are sold without a sales charge, would have substantially similar annual returns as Class A shares because the classes of shares invest in the same portfolio of securities and would differ only to the extent that the classes do not have the same expenses. Class A share returns have not been adjusted to reflect differences in class-related expenses. If differences in class-related expenses were reflected (i.e., if expenses of Class Z shares were reflected in the Class A share returns), the returns shown for Class A shares for all periods would be higher. 66Average Annual Total Returns - Columbia Seligman Global Technology Fund (Class Z Shares)
Class Z SharesUnKnownUnKnownUnKnownUnKnownfalsetrueColumnprimaryElement*RowperiodPeriod*Rowdei_DocumentInformationDocumentAxisAxis*Rowrr_PerformanceMeasureAxisAxis*Rowdei_LegalEntityAxisAxis*Rowrr_ProspectusShareClassAxisAxis*RowunitUnit*falsefalsefalseOtherus-types:textBlockItemTypestringContains a command for the SEC Viewer for the role corresponding to PerformanceTableData.No authoritative reference available.falsefalse28false0rr_PerformanceTableNarrativeTextBlockrrfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00Fund performance information prior to March 7, 2011 represents that of the Fund as a series of Seligman Global Fund Series, Inc., a Maryland corporation. The Fund was reorganized into a
series of Columbia Funds Series Trust II, a Massachusetts business trust, on that date.falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringIf the Fund has annual returns for at least one calendar year, provide a table showing the Fund's (A) average annual total return; (B) average annual total return (after taxes on distributions); and (C) average annual total return (after taxes on distributions and redemption). A Money Market Fund should show only the returns described in clause (A) of the preceding sentence. All returns should be shown for 1-, 5-, and 10- calendar year periods ending on the date of the most recently completed calendar year (or for the life of the Fund, if shorter), but only for periods subsequent to the effective date of the Fund's registration statement. The table also shouldshow the returns of an appropriate broadbased securities market index as defined in Instruction 5 to Item 22(b)(7) for the same periods. A Fund that has been in existence for more than 10 years also may include returns for the life of the Fund. A Money Market Fund may provide the Fund's 7-day yield ending on the date of the most recent calendar year or disclose a toll-free (or collect) telephone number that investors can use to obtain the Fund's current 7-day yield. For a Fund (other than a Money Market Fund or a Fund described in General Instruction C.3.(d)(iii)), provide the information in the following table with the specified captions AVERAGE ANNUAL TOTAL RETURNS (For the periods ended December 31, _____). For a Fund that provides annual total returns for only one calendar year or for a Fund that does not include the bar chart because it does not have annual returns for a full calendar year, modify, as appropriate, the narrative explanation required by paragraph (c)(2)(i) (e.g., by stating that the information gives some indication of the risks of an investment in the Fund by comparing the Fund's performance with a broad measure of market performance).Reference 1: 1
-Publisher SEC
-Name Form
-Number N-1A
-Chapter A
-Section 4
-Paragraph 2
-Subparagraph iv
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