| Label | Element | Value | ||||||
|---|---|---|---|---|---|---|---|---|
| Nuveen Ultra Short Municipal Managed Accounts Portfolio | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk/Return [Heading] | rr_RiskReturnHeading | Nuveen Ultra Short Municipal Managed Accounts Portfolio | ||||||
| Objective [Heading] | rr_ObjectiveHeading | Investment Objective | ||||||
| Objective, Primary [Text Block] | rr_ObjectivePrimaryTextBlock | The investment objective of the Portfolio is to provide a high level of current income that is exempt from regular federal income taxes to the extent consistent with preservation of capital.
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| Expense [Heading] | rr_ExpenseHeading | Fees and Expenses of the Portfolio | ||||||
| Expense Narrative [Text Block] | rr_ExpenseNarrativeTextBlock | The following tables describe the fees and expenses that you may pay if you buy and hold shares of the Portfolio. Portfolio shares may be purchased only by or on behalf of separately managed account clients where Nuveen Asset Management, LLC has an agreement to serve as investment adviser or sub-adviser to the account with the separately managed account program sponsor or directly with the client. The fees and expenses in the following tables do not reflect any charges that are imposed by the separately managed accounts. If such charges were reflected, the fees and expenses would be higher than what is shown below.
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| Shareholder Fees Caption [Text] | rr_ShareholderFeesCaption | Shareholder Fees (fees paid directly from your investment) | ||||||
| Operating Expenses Caption [Text] | rr_OperatingExpensesCaption | Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||
| Portfolio Turnover [Heading] | rr_PortfolioTurnoverHeading | Portfolio Turnover | ||||||
| Portfolio Turnover [Text Block] | rr_PortfolioTurnoverTextBlock | The Portfolio 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 Portfolio shares are held in a taxable account. These costs, which are not reflected in annual portfolio operating expenses or in the example, affect the Portfolio’s performance. For the fiscal period February 29, 2024 (commencement of operations) through July 31, 2024, the Portfolio’s portfolio turnover rate was 0% of the average value of its portfolio. However, this portfolio turnover rate is calculated without regard to securities whose maturities or expiration dates at the time of acquisition were one year or less. If such securities were included, the Portfolio's portfolio turnover rate would be higher.
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| Portfolio Turnover, Rate | rr_PortfolioTurnoverRate | none | ||||||
| Expense Example [Heading] | rr_ExpenseExampleHeading | Example | ||||||
| Expense Example Narrative [Text Block] | rr_ExpenseExampleNarrativeTextBlock | The following example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Portfolio for the time periods indicated and then either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Portfolio’s operating expenses remain the same and that the expense reimbursements continue to remain in place. The example does not reflect any charges that are imposed by the separately managed accounts. If such charges were reflected, the costs would be higher. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
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| Strategy [Heading] | rr_StrategyHeading | Principal Investment Strategies | ||||||
| Strategy Narrative [Text Block] | rr_StrategyNarrativeTextBlock | Under normal circumstances, the Portfolio invests at least 80% of the sum of its net assets and the amount of any borrowings for investment purposes in municipal securities that pay interest that is exempt from regular federal personal income tax. Regular federal personal income tax is different from, and does not include, the federal alternative minimum tax. These municipal securities are obligations issued by U.S. states and their subdivisions, authorities, instrumentalities and corporations, as well as obligations issued by U.S. territories (such as Puerto Rico, the U.S. Virgin Islands and Guam) that pay interest that is exempt from regular federal personal income tax. Municipal securities in which the Portfolio will invest include variable rate demand obligations (“VRDOs”), tax-exempt commercial paper, municipal bonds and municipal notes. The Portfolio may not invest in securities that generate income subject to the federal alternative minimum tax. The Portfolio will generally invest in securities maturing in two years or less and will attempt to maintain the weighted average maturity of its portfolio securities at 120 days or less under normal market conditions. The maturity date of any VRDO in which the Portfolio invests will be considered the security’s next put date. Under normal market conditions, the short-term securities in which the Portfolio invests (or the issuers of such securities) will be rated A-2/P-2 or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Portfolio’s sub-adviser to be of comparable quality. Under normal market conditions, the long-term securities in which the Portfolio invests (or the issuers of such securities) will be rated BBB/Baa or higher at the time of purchase by at least one independent rating agency, or, if unrated, judged by the Portfolio’s sub-adviser to be of comparable quality. Securities (or the issuers of such securities) assigned short-term and long-term credit ratings are eligible for investment by the Portfolio if one of their ratings meets the above criteria. The Portfolio may invest in all types of municipal bonds, including general obligation bonds, revenue bonds and participation interests in municipal leases. The Portfolio may also invest in zero coupon bonds, which are issued at substantial discounts from their value at maturity and pay no cash income to their holders until they mature. The Portfolio may invest in securities that have fixed rates of return or variable or floating rates, and may make forward commitments in which the Portfolio agrees to buy a security for settlement in the future at a price agreed upon today. Developed exclusively for use within separately managed accounts advised or sub-advised by Nuveen Asset Management, LLC, the Portfolio is a specialized municipal portfolio to be used in combination with selected individual securities to effectively model institutional-level investment strategies. The Portfolio is not a money market fund and does not seek to maintain a stable net asset value of $1.00 per share.
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| Risk [Heading] | rr_RiskHeading | Principal Risks | ||||||
| Bar Chart and Performance Table [Heading] | rr_BarChartAndPerformanceTableHeading | Portfolio Performance | ||||||
| Performance Narrative [Text Block] | rr_PerformanceNarrativeTextBlock | Portfolio performance is not included in this prospectus because the Portfolio has not been in existence for a full calendar year. When this prospectus is updated after a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Portfolio by showing the variability of the Portfolio’s returns based on net assets and comparing the Portfolio’s performance to a broad measure of market performance.
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| Performance Information Illustrates Variability of Returns [Text] | rr_PerformanceInformationIllustratesVariabilityOfReturns | When this prospectus is updated after a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Portfolio by showing the variability of the Portfolio’s returns based on net assets and comparing the Portfolio’s performance to a broad measure of market performance. | ||||||
| Performance One Year or Less [Text] | rr_PerformanceOneYearOrLess | Portfolio performance is not included in this prospectus because the Portfolio has not been in existence for a full calendar year. | ||||||
| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Risk Lose Money [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | The price and yield of this Portfolio will change daily. You could lose money by investing in the Portfolio. | ||||||
| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Risk Not Insured Depository Institution [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. | ||||||
| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Active Management Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Active Management Risk—The Portfolio’s sub-adviser actively manages the Portfolio’s investments. Consequently, the Portfolio is subject to the risk that the investment techniques and risk analyses employed by the Portfolio’s sub-adviser may not produce the desired results. This could cause the Portfolio to lose value or its investment results to lag relevant benchmarks or other funds with similar objectives.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Call Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Call Risk—If, during periods of falling interest rates, an issuer exercises its right to prepay principal on its higher-yielding municipal bonds held by the Portfolio, the Portfolio may have to reinvest in securities with lower yields or higher risk of default, which may adversely impact the Portfolio’s performance.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Credit Risks [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Credit Risk—Credit risk is the risk that an issuer or other obligated party of a municipal bond may be, or perceived (whether by market participants, rating agencies, pricing services or otherwise) to be, unable or unwilling to make interest and principal payments when due and the related risk that the value of a municipal bond may decline because of concerns about the issuer’s ability or willingness to make such payments.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Credit Spread Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Credit Spread Risk—Credit spread risk is the risk that credit spreads (i.e., the difference in yield between securities that is due to differences in their credit quality) may increase when the market believes that bonds generally have a greater risk of default. Increasing credit spreads may reduce the market values of the Portfolio’s municipal bonds. Credit spreads often increase more for lower rated and unrated securities than for investment grade securities. In addition, when credit spreads increase, reductions in market value will generally be greater for longer-maturity securities.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Cybersecurity Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Cybersecurity Risk—Cybersecurity risk is the risk of an unauthorized breach and access to Portfolio assets, customer data (including private shareholder information), or proprietary information, or the risk of an incident occurring that causes the Portfolio, its investment adviser or sub-adviser, custodian, transfer agent, distributor or other service provider, a financial intermediary or the issuers of securities held by the Portfolio to suffer a data breach, data corruption or lose operational functionality. Successful cyber-attacks or other cyber-failures or events affecting the Portfolio, its service providers or the issuers of securities held by the Portfolio may adversely impact the Portfolio or its shareholders. Additionally, a cybersecurity breach could affect the issuers in which the Portfolio invests, which may cause the Portfolio’s investments to lose value.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Frequent Trading Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Frequent Trading Risk—The portfolio turnover rate of the Portfolio may exceed 100%. Frequent trading of portfolio securities may produce capital gains, which are taxable to shareholders when distributed. Frequent trading may also increase the amount of commissions or mark-ups to broker-dealers that the Portfolio pays when it buys and sells securities, which may detract from the Portfolio’s performance.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Income Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Income Risk—The Portfolio's income could decline during periods of falling interest rates or when the Portfolio experiences defaults on municipal bonds it holds. Income risk is generally higher for limited-term bonds so investors may experience a fluctuation in the monthly income from the Portfolio.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Interest Rate Risks [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Interest Rate Risk—Interest rate risk is the risk that the value of the Portfolio’s municipal bonds will decline because of rising interest rates. Changing interest rates may have unpredictable effects on markets, result in heightened market volatility and detract from the Portfolio’s performance to the extent that it is exposed to such interest rates. Municipal bonds may be subject to a greater risk of rising interest rates than would normally be the case due to the effect of potential government fiscal policy initiatives and resulting market reaction to those initiatives. Higher periods of inflation could lead to government fiscal policies which raise interest rates. When interest rates change, the values of longer-duration municipal bonds usually change more than the values of shorter-duration municipal bonds. Conversely, municipal bonds with shorter durations or maturities will be less volatile but may provide lower returns than municipal bonds with longer durations or maturities. Rising interest rates also may lengthen the duration of municipal bonds with call features, since exercise of the call becomes less likely as interest rates rise, which in turn will make the securities more sensitive to changes in interest rates and result in even steeper price declines in the event of further interest rate increases. The Portfolio is also subject to the risk that the income generated by its investments may not keep pace with inflation. There is a risk that interest rates across the financial system may change, possibly significantly and/or rapidly. In general, changing interest rates, including rates that fall below zero, or a lack of market participants may lead to decreased liquidity and increased volatility in the municipal bond market, making it more difficult for the Portfolio to sell municipal bonds. Changes in interest rates may also lead to an increase in Portfolio redemptions, which may result in higher portfolio turnover costs, thereby adversely affecting the Portfolio’s performance.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Market Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Market Risk—The market value of the Portfolio’s investments may go up or down, sometimes rapidly or unpredictably and for short or extended periods of time, due to the particular circumstances of individual issuers or due to general conditions impacting issuers more broadly. Global economies and financial markets have become highly interconnected, and thus economic, market or political conditions or events in one country or region might adversely impact the value of the Portfolio’s investments whether or not the Portfolio invests in such country or region. Events such as war, terrorism, natural and environmental disasters and the spread of infectious illnesses or other public health emergencies may have a severe negative impact on the global economy, could cause financial markets to experience extreme volatility and losses, and could result in the disruption of trading and the reduction of liquidity in many instruments. Additionally, as inflation increases, the value of the Portfolio’s assets can decline.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Municipal Bond Market Liquidity Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Municipal Bond Market Liquidity Risk—Inventories of municipal bonds held by brokers and dealers have decreased in recent years, lessening their ability to make a market in these securities. This reduction in market making capacity has the potential to decrease the Portfolio’s ability to buy or sell bonds, and increase bond price volatility and trading costs, particularly during periods of economic or market stress. In addition, recent federal banking regulations may cause certain dealers to reduce their inventories of municipal bonds, which may further decrease the Portfolio’s ability to buy or sell bonds. Municipal bonds may also be thinly traded or have a limited trading market, making it difficult for the Portfolio to value the bonds accurately. As a result, the Portfolio may be forced to accept a lower price to sell a security, to sell other securities to raise cash, or to give up an investment opportunity, any of which could have a negative effect on performance. If the Portfolio needed to sell large blocks of bonds to raise cash (such as to meet heavy shareholder redemptions), those sales could further reduce the bonds’ prices and hurt performance.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Municipal Lease Obligations Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Municipal Lease Obligations Risk—Participation interests in municipal leases pose special risks because many leases and contracts contain “non-appropriation” clauses that provide that the governmental issuer has no obligation to make future payments under the lease or contract unless money is appropriated for this purpose by the appropriate legislative body.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Municipal Securities Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Municipal Securities Risk—The values of municipal securities held by the Portfolio may be adversely affected by local political and economic conditions and developments. The Portfolio may make significant investments in a particular segment of the municipal bond market or in the debt of issuers located in the same state or territory. Adverse conditions in such industry or location could have a correspondingly adverse effect on the financial condition of issuers. These conditions may cause the value of the Portfolio’s shares to fluctuate more than the values of shares of funds that invest in a greater variety of investments. The amount of public information available about municipal bonds is generally less than for certain corporate equities or bonds, meaning that the investment performance of the Portfolio may be more dependent on the analytical abilities of the Portfolio’s sub-adviser than funds that invest in stock or other corporate investments.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Tax Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Tax Risk—Income from municipal bonds held by the Portfolio could be declared taxable because of, among other things, unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a bond issuer or other obligated party. Investments in taxable municipal bonds may cause the Portfolio to have taxable investment income.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Ultra Short Fund Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Ultra Short Fund Risk—The Portfolio is not a money market fund. Therefore, the Portfolio does not attempt to maintain a stable net asset value and is not subject to the rules that govern the diversity, quality, maturity, liquidity and other features of securities that money market funds may purchase. Under normal conditions, the Portfolio may be more susceptible than a money market fund to interest rate risk, valuation risk, credit risk and other risks relevant to the Portfolio’s investments. Unlike certain money market funds, the Portfolio’s net asset value per share will fluctuate.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Unrated Bond Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Unrated Bond Risk—Unrated municipal bonds determined by the Portfolio’s sub-adviser to be of comparable quality to rated municipal bonds which the Portfolio may purchase may pay a higher interest rate than such rated municipal bonds and be subject to a greater risk of illiquidity or price changes. Less public information is typically available about unrated municipal bonds or issuers than rated bonds or issuers.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | U S Territory Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | U.S. Territory Risk—The Portfolio’s investments may include municipal bonds issued by U.S. territories such as Puerto Rico, the U.S. Virgin Islands and Guam that pay interest exempt from regular federal personal income tax. Accordingly, the Portfolio may be adversely affected by local political and economic conditions and developments within these U.S. territories.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Valuation Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Valuation Risk—The sales price the Portfolio could receive for any particular municipal bond may differ from the Portfolio’s valuation of the investment, particularly for securities that trade in thin or volatile markets or that are valued using a fair value methodology. The municipal bonds in which the Portfolio invests typically are valued by a pricing service utilizing a range of market-based inputs and assumptions, including price quotations obtained from broker-dealers making markets in such instruments, cash flows and transactions for comparable instruments. There is no assurance that the Portfolio will be able to buy or sell a portfolio security at the price established by the pricing service, which could result in a gain or loss to the Portfolio. Pricing services generally price municipal bonds assuming orderly transactions of an institutional “round lot” size, but some trades may occur in smaller, “odd lot” sizes, often at lower prices than institutional round lot trades. Over certain time periods, such differences could materially impact the performance of the Portfolio, which may not be sustainable. Alternative pricing services may incorporate different assumptions and inputs into their valuation methodologies, potentially resulting in different values for the same securities. As a result, if the Portfolio were to change pricing services, or if the Portfolio’s pricing service were to change its valuation methodology, there could be a material impact, either positive or negative, on the Portfolio’s net asset value.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Variable Rate Demand Obligations Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Variable Rate Demand Obligations Risk—Variable rate demand obligations are floating rate securities that combine an interest in a long-term municipal bond with a right to demand payment before maturity from a bank or other financial institution. If the bank or financial institution is unable to pay, the Portfolio may lose money.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | When Issued Delayed Delivery and Forward Commitment Transactions Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | When-Issued, Delayed-Delivery and Forward Commitment Transactions Risk—These transactions involve an element of risk because, although the Portfolio will not have made any cash outlay prior to the settlement date, the purchase price has been established so the value of the security to be purchased may decline to a level below its purchase price before that settlement date.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Zero Coupon Bonds Risk [Member] | ||||||||
| Risk/Return: | rr_RiskReturnAbstract | |||||||
| Risk [Text Block] | rr_RiskTextBlock | Zero Coupon Bonds Risk—Because interest on zero coupon bonds is not paid on a current basis, the values of zero coupon bonds will be more volatile in response to interest rate changes than the values of bonds that distribute income regularly. Although zero coupon bonds generate income for accounting purposes, they do not produce cash flow, and thus the Portfolio could be forced to liquidate securities at an inopportune time in order to generate cash to distribute to shareholders as required by tax laws.
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| Nuveen Ultra Short Municipal Managed Accounts Portfolio | Nuveen Ultra Short Municipal Managed Accounts Portfolio | ||||||||
| 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 net asset value) | rr_MaximumDeferredSalesChargeOverOther | none | ||||||
| Maximum Sales Charge (Load) Imposed on Reinvested Dividends | rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther | none | ||||||
| Exchange Fee | rr_ExchangeFeeOverRedemption | none | ||||||
| Management Fees | rr_ManagementFeesOverAssets | none | [1] | |||||
| Other Expenses | rr_OtherExpensesOverAssets | 1.91% | ||||||
| Expenses (as a percentage of Assets) | rr_ExpensesOverAssets | 1.91% | ||||||
| Fee Waivers and/or Expense Reimbursements | rr_FeeWaiverOrReimbursementOverAssets | (1.91%) | [2] | |||||
| Total Annual Portfolio Operating Expenses After Fee Waivers and/or Expense Reimbursements | rr_NetExpensesOverAssets | none | ||||||
| 1 Year | rr_ExpenseExampleYear01 | none | [1],[3] | |||||
| 3 Years | rr_ExpenseExampleYear03 | none | [1],[3] | |||||
| 5 Years | rr_ExpenseExampleYear05 | none | [1],[3] | |||||
| 10 Years | rr_ExpenseExampleYear10 | none | [1],[3] | |||||
| 1 Year | rr_ExpenseExampleNoRedemptionYear01 | none | [1],[3] | |||||
| 3 Years | rr_ExpenseExampleNoRedemptionYear03 | none | [1],[3] | |||||
| 5 Years | rr_ExpenseExampleNoRedemptionYear05 | none | [1],[3] | |||||
| 10 Years | rr_ExpenseExampleNoRedemptionYear10 | none | [1],[3] | |||||
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