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Registrant Name dei_EntityRegistrantName CALAMOS INVESTMENT TRUST/IL
Prospectus Date rr_ProspectusDate Mar. 01, 2019
Calamos Emerging Market Equity Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Calamos Emerging Market Equity Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock Calamos Emerging Market Equity Fund’s investment objective is long-term capital appreciation.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The following table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts on purchases of Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Calamos Funds. More information about these and other discounts is available from your financial professional and under “Fund Facts — What classes of shares do the Funds offer?” on page 123 of the Fund’s prospectus, in the Appendix to this prospectus and “Share Classes and Pricing of Shares” on page 73 of the Fund’s statement of additional information.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption <b>Shareholder Fees (fees paid directly from your investment):</b>
Operating Expenses Caption [Text] rr_OperatingExpensesCaption <b>Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):</b>
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination March 1, 2022
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The 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 the annual fund operating expenses or in the example, affect the Fund’s performance. During the Fund’s most recent fiscal year, the Fund’s portfolio turnover rate was 99.8% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 99.80%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts on purchases of Class A shares if you and your family invest, or agree to invest in the future, at least $50,000 in Calamos Funds. More information about these and other discounts is available from your financial professional and under “Fund Facts — What classes of shares do the Funds offer?” on page 123 of the Fund’s prospectus, in the Appendix to this prospectus and “Share Classes and Pricing of Shares” on page 73 of the Fund’s statement of additional information.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock 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 either redeem or do not redeem your shares at the end of the reflected time periods. The example also assumes that your investment has a 5% return each year, that all dividends and capital gain distributions are reinvested, that you pay a maximum initial or contingent deferred sales charge and that the Fund’s operating expenses remain the same. Any applicable fee waivers and/or expense reimbursements are reflected in the below examples for the period through March 1, 2022 only. Although your actual performance and costs may be higher or lower, based on these assumptions, your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption You would pay the following expenses if you redeemed your shares at the end of the period:
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption You would pay the following expenses if you did not redeem your shares:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock The Fund anticipates that, under normal circumstances, the Fund will invest at least 80% of its net assets (plus borrowing for investment purposes, if any) in the equity securities of issuers whose principal activities are tied economically to developing or emerging market countries. These include securities of issuers (1) that are traded principally on a stock exchange or over-the-counter in emerging market countries; (2) that are organized under the laws of and have a principal office in emerging market countries; or (3) that derive 50% or more of their total revenues from, and/or have 50% or more of their total assets in, goods produced, sales made, profits generated or services performed in developing or emerging market countries. Countries may be considered to be developing or emerging markets if they are: (1) in any one of the Morgan Stanley Capital Index (“MSCI”) emerging market indices; (2) classified as a developing or emerging market (or similar or corresponding classification) by organizations such as the World Bank and the International Monetary Fund; or (3) have economies, industries and stock markets with similar characteristics to such countries.

In pursuing its investment objective, the Fund seeks out securities that, in the investment adviser’s opinion, offer the best opportunities for appreciation. The Fund’s investment adviser typically considers the company’s financial soundness, earnings and cash flow forecast and quality of management. The investment adviser takes environmental, social and governance (“ESG”) factors into account in making investment decisions. The Fund’s investment adviser seeks to lower the risks of investing in stocks by using a “top-down approach” of diversification by company, industry, sector, country and currency and focusing on macro-level investment themes. The Fund may engage in active and frequent trading of portfolio securities.

The Fund seeks to reduce risk by diversifying among many industries. Although the Fund has the flexibility to invest a significant portion of its assets in one country or region, it generally intends to remain diversified across countries and geographical regions.

The Fund may invest in issuers of any market capitalization. Equity securities in which the Fund invests include common and preferred stocks, rights and warrants to purchase common stock and depositary receipts.

The Fund may utilize currency forwards and forward foreign currency contracts to reduce currency deviations. The Fund may also use futures for management of cash flows.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock An investment in the Fund is subject to risks, and you could lose money on your investment in the Fund. There can be no assurance that the Fund will achieve its investment objective. The risks associated with an investment in the Fund can increase during times of significant market volatility. Your investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund include:
  • American Depositary Receipts Risk — The stocks of most foreign companies that trade in the U.S. markets are traded as American Depositary Receipts (ADRs). U.S. depositary banks issue these stocks. Each ADR represents one or more shares of foreign stock or a fraction of a share. The price of an ADR corresponds to the price of the foreign stock in its home market, adjusted to the ratio of the ADRs to foreign company shares. Therefore while purchasing a security on a U.S. exchange, the risks inherently associated with foreign investing still apply to ADRs.
  • Currency Risk — To the extent that the Fund invests in securities or other instruments denominated in or indexed to foreign currencies, changes in currency exchange rates bring an added dimension of risk. Currency fluctuations could negatively impact investment gains or add to investment losses. Although the Fund may attempt to hedge against currency risk, the hedging instruments may not always perform as the Fund expects and could produce losses. Suitable hedging instruments may not be available for currencies of emerging market countries. The Fund’s investment adviser may determine not to hedge currency risks, even if suitable instruments appear to be available.
  • Emerging Markets Risk — Emerging market countries may have relatively unstable governments and economies based on only a few industries, which may cause greater instability. The value of emerging market securities will likely be particularly sensitive to changes in the economies of such countries. These countries are also more likely to experience higher levels of inflation, deflation or currency devaluations, which could hurt their economies and securities markets. Securities issued in these countries may be more volatile and less liquid than securities issued in foreign countries with more developed economies or markets. Loss may also result from the imposition of exchange controls, confiscations and other government restrictions, or from problems in share registration, settlement, custody, or other operational risks.
  • Equity Securities Risk — The securities markets are volatile, and the market prices of the Fund’s securities may decline generally. The price of equity securities fluctuates based on changes in a company’s financial condition and overall market and economic conditions. If the market prices of the securities owned by the Fund fall, the value of your investment in the Fund will decline.
  • Foreign Securities Risk — Risks associated with investing in foreign securities include fluctuations in the exchange rates of foreign currencies that may affect the U.S. dollar value of a security, the possibility of substantial price volatility as a result of political and economic instability in the foreign country, less public information about issuers of securities, different securities regulation, different accounting, auditing and financial reporting standards and less liquidity than in U.S. markets.
  • Forward Foreign Currency Contract Risk — Forward foreign currency contracts are contractual agreements to purchase or sell a specified currency at a specified future date (or within a specified time period) at a price set at the time of the contract. The Fund may not fully benefit from, or may lose money on, forward foreign currency transactions if changes in currency exchange rates do not occur as anticipated or do not correspond accurately to changes in the value of the Fund’s holdings.
  • Futures and Forward Contracts Risk — Futures contracts provide for the future sale by one party and purchase by another of a specific asset at a specific time and price (with or without delivery required). Futures contracts are standardized contracts traded on a recognized exchange. An option on a futures contract gives the purchaser the right, in exchange for a premium, to assume a position in a futures contract at a specified exercise price during the term of the option. Futures and forward contracts are subject to counter party risk, meaning that the party who issues the derivatives may experience a significant credit event and may be unwilling or unable to make timely settlement payments or otherwise honor its obligations.
  • Geographic Concentration Risk — Investments in a particular country or geographic region may be particularly susceptible to political, diplomatic or economic conditions and regulatory requirements. To the extent the Fund concentrates its investments in a particular country, region or group of regions, the Fund may be more volatile than a more geographically diversified fund.
  • Growth Stock Risk — Growth securities typically trade at higher multiples of current earnings than other securities and, therefore, may be more sensitive to changes in current or expected earnings than other equity securities and may be more volatile.
  • Portfolio Selection Risk — The value of your investment may decrease if the investment adviser’s judgment about the attractiveness, value or market trends affecting a particular security, issuer, industry or sector or about market movements is incorrect.
  • Portfolio Turnover Risk — The Fund may engage in active and frequent trading and have a high portfolio turnover rate, which may increase the Fund’s transaction costs, may adversely affect the Fund’s performance and may generate a greater amount of capital gain distributions to shareholders than if the Fund had a low portfolio turnover rate.
  • Sector Risk — To the extent the Fund invests a significant portion of its assets in a particular sector, a greater portion of the Fund’s performance may be affected by the general business and economic conditions affecting that sector. Each sector may share economic risk with the broader market, however there may be economic risks specific to each sector. As a result, returns from those sectors may trail returns from the overall stock market and it is possible that the Fund may underperform the broader market, or experience greater volatility.
  • Securities Lending Risk — The Fund may lend its portfolio securities to broker-dealers and banks in order to generate additional income for the Fund. Any such loan must be continuously secured by collateral in cash or cash equivalents maintained on a current basis in an amount at least equal to the market value of the securities loaned by the Fund. In the event of bankruptcy or other default of a borrower of portfolio securities, the Fund could experience both delays in liquidating the loan collateral or recovering the loaned securities and losses, including (a) possible decline in the value of the collateral or in the value of the securities loaned during the period while the Fund seeks to enforce its rights thereto, (b) possible subnormal levels of income and lack of access to income during this period, and (c) expenses of enforcing its rights. In an effort to reduce these risks, the Fund’s securities lending agent monitors, and reports to Calamos Advisors on, the creditworthiness of the firms to which a Fund lends securities. The Fund may also experience losses as a result of a diminution in value of its cash collateral investments.
  • Small and Mid-Sized Company Risk — Small to mid-sized company stocks have historically been subject to greater investment risk than large company stock. The prices of small to mid-sized company stocks tend to be more volatile and less liquid than large company stocks. Small and mid-sized companies may have no or relatively short operating histories, or be newly formed public companies. Some of these companies have aggressive capital structures, including high debt levels, or are involved in rapidly growing or changing industries and/or new technologies, which pose additional risks.
Risk Lose Money [Text] rr_RiskLoseMoney An investment in the Fund is subject to risks, and you could lose money on your investment in the Fund.
Risk Not Insured Depository Institution [Text] rr_RiskNotInsuredDepositoryInstitution Your investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Fund Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The following bar chart and table indicate the risks of investing in the Fund by showing changes in the Fund’s performance from calendar year to calendar year and how the Fund’s average annual total returns compare with those of a broad measure of market performance. All returns include the reinvestment of dividends and distributions. As always, please note that the Fund’s past performance (before and after taxes) cannot predict how it will perform in the future. Updated performance information is available at no cost by visiting www.calamos.com or by calling 800.582.6959.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following bar chart and table indicate the risks of investing in the Fund by showing changes in the Fund's performance from calendar year to calendar year and how the Fund's average annual total returns compare with those of a broad measure of market performance.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 800.582.6959
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.calamos.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture As always, please note that the Fund's past performance (before and after taxes) cannot predict how it will perform in the future.
Bar Chart [Heading] rr_BarChartHeading <b>CLASS I ANNUAL TOTAL RETURN FOR YEARS ENDED 12.31 </b>
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
Highest Quarterly Return:   11.05% (3.31.17)      Lowest Quarterly Return:   -17.63% (9.30.15)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns as of 12.31.18
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown The after-tax returns are shown only for Class I shares<br/><br/>After-tax returns for classes other than Class I will vary from returns shown for Class I.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher “Return After Taxes on Distributions and Sale of Fund Shares” may be higher than other returns for the same period due to a tax benefit of realizing a capital loss on the sale of Fund shares.
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The following table shows how the Fund’s average annual performance (before and after taxes) for the one- and five-year periods ended December 31, 2018 and since the Fund’s inception compared with broad measures of market performance. “Since Inception” returns shown for each index are returns since the inception of the Fund’s Class A shares, or since the nearest subsequent month end when comparative index data is available only for full monthly periods. The after-tax returns show the impact of assumed federal income taxes on an investment in the Fund. “Return After Taxes on Distributions” shows the effect of taxable distributions, but assumes that you still hold the Fund shares at the end of the period and so do not have any taxable gain or loss on your investment. “Return After Taxes on Distributions and Sale of Fund Shares” shows the effect of taxable distributions and any taxable gain or loss that would be realized if the Fund shares were purchased at the beginning and sold at the end of the specified period.

The after-tax returns are shown only for Class I shares, and are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns for classes other than Class I will vary from returns shown for Class I. “Return After Taxes on Distributions and Sale of Fund Shares” may be higher than other returns for the same period due to a tax benefit of realizing a capital loss on the sale of Fund shares.
Average Annual Return, Caption rr_AverageAnnualReturnCaption <b>AVERAGE ANNUAL TOTAL RETURNS — FOR THE PERIODS ENDED 12.31.18</b>
Calamos Emerging Market Equity Fund | Class A  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 4.75%
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the redemption price or offering price) rr_MaximumDeferredSalesChargeOverOther none
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service Fees (12b-1) rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.93%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.02% [1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.30%
Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.53%) [2]
Total Annual Fund Operating Expenses After Reimbursement rr_NetExpensesOverAssets 1.77%
One Year rr_ExpenseExampleYear01 $ 646
Three Years rr_ExpenseExampleYear03 1,006
Five Years rr_ExpenseExampleYear05 1,501
Ten Years rr_ExpenseExampleYear10 2,861
One Year rr_ExpenseExampleNoRedemptionYear01 646
Three Years rr_ExpenseExampleNoRedemptionYear03 1,006
Five Years rr_ExpenseExampleNoRedemptionYear05 1,501
Ten Years rr_ExpenseExampleNoRedemptionYear10 $ 2,861
ONE YEAR rr_AverageAnnualReturnYear01 (24.69%)
FIVE YEAR rr_AverageAnnualReturnYear05 (3.76%)
SINCE INCEPTION rr_AverageAnnualReturnSinceInception (3.76%)
INCEPTION DATE OF CLASS rr_AverageAnnualReturnInceptionDate Dec. 31, 2013
Calamos Emerging Market Equity Fund | Class C  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the redemption price or offering price) rr_MaximumDeferredSalesChargeOverOther 1.00%
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service Fees (12b-1) rr_DistributionAndService12b1FeesOverAssets 1.00%
Other Expenses rr_OtherExpensesOverAssets 0.93%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.02% [1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 3.05%
Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.53%) [2]
Total Annual Fund Operating Expenses After Reimbursement rr_NetExpensesOverAssets 2.52%
One Year rr_ExpenseExampleYear01 $ 355
Three Years rr_ExpenseExampleYear03 785
Five Years rr_ExpenseExampleYear05 1,455
Ten Years rr_ExpenseExampleYear10 3,245
One Year rr_ExpenseExampleNoRedemptionYear01 255
Three Years rr_ExpenseExampleNoRedemptionYear03 785
Five Years rr_ExpenseExampleNoRedemptionYear05 1,455
Ten Years rr_ExpenseExampleNoRedemptionYear10 $ 3,245
ONE YEAR rr_AverageAnnualReturnYear01 (22.36%)
FIVE YEAR rr_AverageAnnualReturnYear05 (3.52%)
SINCE INCEPTION rr_AverageAnnualReturnSinceInception (3.52%)
INCEPTION DATE OF CLASS rr_AverageAnnualReturnInceptionDate Dec. 31, 2013
Calamos Emerging Market Equity Fund | Class I  
Risk/Return: rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of the redemption price or offering price) rr_MaximumDeferredSalesChargeOverOther none
Management Fees rr_ManagementFeesOverAssets 1.10%
Distribution and/or Service Fees (12b-1) rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.93%
Acquired Fund Fees and Expenses rr_AcquiredFundFeesAndExpensesOverAssets 0.02% [1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 2.05%
Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.53%) [2]
Total Annual Fund Operating Expenses After Reimbursement rr_NetExpensesOverAssets 1.52%
One Year rr_ExpenseExampleYear01 $ 155
Three Years rr_ExpenseExampleYear03 481
Five Years rr_ExpenseExampleYear05 948
Ten Years rr_ExpenseExampleYear10 2,244
One Year rr_ExpenseExampleNoRedemptionYear01 155
Three Years rr_ExpenseExampleNoRedemptionYear03 481
Five Years rr_ExpenseExampleNoRedemptionYear05 948
Ten Years rr_ExpenseExampleNoRedemptionYear10 $ 2,244
2014 rr_AnnualReturn2014 (6.57%) [3]
2015 rr_AnnualReturn2015 (13.48%) [3]
2016 rr_AnnualReturn2016 (1.50%) [3]
2017 rr_AnnualReturn2017 39.07% [3]
2018 rr_AnnualReturn2018 (20.69%) [3]
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel <b>Highest Quarterly Return: </b>
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Mar. 31, 2017
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 11.05%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel <b>Lowest Quarterly Return: </b>
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Sep. 30, 2015
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (17.63%)
ONE YEAR rr_AverageAnnualReturnYear01 (20.69%)
FIVE YEAR rr_AverageAnnualReturnYear05 (2.57%)
SINCE INCEPTION rr_AverageAnnualReturnSinceInception (2.57%)
INCEPTION DATE OF CLASS rr_AverageAnnualReturnInceptionDate Dec. 31, 2013
Calamos Emerging Market Equity Fund | Return after taxes on distributions | Class I  
Risk/Return: rr_RiskReturnAbstract  
ONE YEAR rr_AverageAnnualReturnYear01 (20.58%) [4]
FIVE YEAR rr_AverageAnnualReturnYear05 (2.52%) [4]
SINCE INCEPTION rr_AverageAnnualReturnSinceInception (2.52%) [4]
INCEPTION DATE OF CLASS rr_AverageAnnualReturnInceptionDate Dec. 31, 2013 [4]
Calamos Emerging Market Equity Fund | Return after taxes on distributions and sale of Fund shares | Class I  
Risk/Return: rr_RiskReturnAbstract  
ONE YEAR rr_AverageAnnualReturnYear01 (12.12%) [4]
FIVE YEAR rr_AverageAnnualReturnYear05 (1.81%) [4]
SINCE INCEPTION rr_AverageAnnualReturnSinceInception (1.81%) [4]
INCEPTION DATE OF CLASS rr_AverageAnnualReturnInceptionDate Dec. 31, 2013 [4]
Calamos Emerging Market Equity Fund | MSCI Emerging Markets Index  
Risk/Return: rr_RiskReturnAbstract  
ONE YEAR rr_AverageAnnualReturnYear01 (14.25%)
FIVE YEAR rr_AverageAnnualReturnYear05 2.03%
SINCE INCEPTION rr_AverageAnnualReturnSinceInception 2.03%
[1] “Acquired Fund Fees and Expenses” include certain expenses incurred in connection with the Fund’s investment in various money market funds and ETFs.
[2] The Fund's investment advisor has contractually agreed to reimburse Fund expenses through March 1, 2022 to the extent necessary so that Total Annual Fund Operating Expenses (excluding taxes, interest, short interest, short dividend expenses, brokerage commissions, acquired fund fees and expenses, and extraordinary expenses, if any) of Class A, Class C, and Class I are limited to 1.75%, 2.50%, and 1.50% of average net assets, respectively. Calamos Advisors may recapture previously waived expense amounts within the same fiscal year for any day where the respective Fund's expense ratio falls below the contractual expense limit up to the expense limit for that day. This undertaking is binding on Calamos Advisors and any of its successors and assigns. This agreement is not terminable by either party.
[3] Annual returns for Class I are provided because Class I shares represent the largest percentage of assets in the Calamos Family of Funds.
[4] Returns after taxes for Class I are provided because Class I shares represent the largest percentage of assets in the Calamos Family of Funds.