v3.24.3
Label Element Value
Municipal Total Return Managed Accounts Portfolio  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Municipal Total Return Managed Accounts Portfolio
Objective [Heading] rr_ObjectiveHeading Investment Objectives
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
The primary investment objective of the Portfolio is to seek attractive total return. The Portfolio also seeks to provide high current income exempt from regular federal income taxes.
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.
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. During the most recent fiscal year, the Portfolio’s portfolio turnover rate was 43% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 43.00%
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:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Under normal market conditions, the Portfolio invests at least 80% of the sum of its net assets and the amount of any borrowings for investment purposes in municipal bonds 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 bonds include 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. The Portfolio may invest without limit in securities that generate income subject to the alternative minimum tax on individuals, therefore, the Portfolio may not be suitable for investors subject to the federal alternative minimum tax on individuals. For tax years beginning after December 31, 2022, exempt-interest dividends may affect the corporate alternative minimum tax for certain tax corporations.
The Portfolio invests in various types of municipal securities, including investment grade (rated BBB/Baa or better), below investment grade (rated BB/Ba or lower), and unrated municipal securities. The Portfolio may invest up to 50% of its net assets in below investment grade municipal bonds, but will normally invest 10-30% of its net assets in such bonds. Such securities are commonly referred to as “high yield” securities or “junk” bonds. The Portfolio may invest up to 5% of its net assets in defaulted bonds.
The Portfolio will focus on securities with intermediate to longer term maturities and, as such, will generally maintain, under normal market conditions, an investment portfolio with an overall weighted average maturity of approximately 12 to 25 years.
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 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 up to 50% of its net assets in municipal securities whose interest payments vary inversely with changes in short-term tax-exempt interest rates (“inverse floaters”). Inverse floaters are derivative securities that provide leveraged exposure to underlying municipal bonds. The Portfolio’s investments in inverse floaters are designed to increase the Portfolio’s income and returns through this leveraged exposure. These investments are speculative, however, and also create the possibility that income and returns will be diminished. The Portfolio will only invest in inverse floating rate securities whose underlying bonds are rated A or higher.
The Portfolio may also make forward commitments in which the Portfolio agrees to buy a security for settlement in the future at a price agreed upon today.
The Portfolio’s sub-adviser uses a value-oriented strategy and looks for higher-yielding and undervalued municipal bonds that offer the potential for above-average total return. The sub-adviser may choose to sell municipal bonds with deteriorating credit or limited upside potential compared to other available bonds.
Developed exclusively for use within separately managed accounts advised or sub-advised by Nuveen Asset Management, LLC, the Portfolio is a specialized municipal bond portfolio to be used in combination with selected individual securities to effectively model institutional-level investment strategies. The Portfolio enables certain Nuveen municipal separately managed account investors to achieve greater diversification and return potential than might otherwise be achieved by using lower quality, higher yielding securities.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Portfolio Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The following bar chart and table provide some indication of the potential risks of investing in the Portfolio. The Portfolio’s past performance (before and after taxes) is not necessarily an indication of how the Portfolio will perform in the future. The returns do not reflect any charges that are imposed by the separately managed accounts. If such charges were reflected, the returns would be lower.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart below shows the variability of the Portfolio’s performance from year to year.
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Portfolio’s past performance (before and after taxes) is not necessarily an indication of how the Portfolio will perform in the future.
Bar Chart [Heading] rr_BarChartHeading   Annual Total Return*
Bar Chart Narrative [Text Block] rr_BarChartNarrativeTextBlock The bar chart below shows the variability of the Portfolio’s performance from year to year.
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads The returns do not reflect any charges that are imposed by the separately managed accounts. If such charges were reflected, the returns would be lower.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
During the ten-year period ended December 31, 2023, the Portfolio’s highest and lowest quarterly returns were 6.89%
and -7.40%, respectively, for the quarters ended December 31, 2023 and March 31, 2022.
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns for the Periods Ended December 31, 2023
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate All after-tax returns 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 Narrative rr_PerformanceTableNarrativeTextBlock
The table below shows the variability of the Portfolio’s average annual returns and how they compare over the time periods indicated with those of broad measures of market performance. In accordance with new regulatory requirements, the Portfolio has selected the Bloomberg Municipal Bond Index, which represents a broad measure of market performance, and is generally representative of the market sectors or types of investments in which the Portfolio invests. All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here.
Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers had not been in place, returns would have been reduced.
Municipal Total Return 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.
Municipal Total Return 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.
Municipal Total Return 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.
Municipal Total Return Managed Accounts Portfolio | Alternative Minimum Tax Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Alternative Minimum Tax Risk—The Portfolio has no limit as to the amount that can be invested in alternative minimum tax bonds. Therefore, all or a portion of the Portfolio’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax on individuals. For tax years beginning after December 31, 2022, exempt-interest dividends may affect the federal corporate alternative minimum tax for certain corporations.
Municipal Total Return 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.
Municipal Total Return 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. The Portfolio's investments in inverse floaters will increase the Portfolio's credit risk.
Municipal Total Return 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.
Municipal Total Return 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.
Municipal Total Return Managed Accounts Portfolio | Defaulted Bond Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Defaulted Bond Risk—Defaulted bonds are speculative and involve substantial risks in addition to the risks of investing in high yield securities that have not defaulted. The Portfolio generally will not receive interest payments on the defaulted bonds and there is a substantial risk that principal will not be repaid. In any reorganization or liquidation proceeding relating to a defaulted bond, the Portfolio may lose its entire investment.
Municipal Total Return Managed Accounts Portfolio | High Yield Securities Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
High Yield Securities Risk—High yield securities, which are rated below investment grade and commonly referred to as “junk” bonds, and unrated securities of comparable quality are high risk investments that may cause income and principal losses for the Portfolio. They generally are considered to be speculative with respect to the ability to pay interest and repay principal, have greater credit risk, are less liquid, are more likely to experience a default and have more volatile prices than investment grade securities.
Municipal Total Return 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. Also, if the Portfolio invests in inverse floaters, the Portfolio's income may decrease if short-term interest rates rise.
Municipal Total Return 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.
Municipal Total Return Managed Accounts Portfolio | Inverse Floaters Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Inverse Floaters Risk—The use of inverse floaters by the Portfolio creates effective leverage. Due to the leveraged nature of these investments, they will typically be more volatile and involve greater risk than the fixed rate municipal bonds underlying the inverse floaters. An investment in certain inverse floaters will involve the risk that the Portfolio could lose more than its original principal investment. Distributions on inverse floaters bear an inverse relationship to short-term municipal bond interest rates. Thus, distributions paid to the Portfolio on its inverse floaters will be reduced or even eliminated as short-term municipal bond interest rates rise and will increase when short-term municipal bond interest rates fall. Inverse floaters generally will underperform the market for fixed rate municipal bonds in a rising interest rate environment.
Municipal Total Return 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.
Municipal Total Return 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.
Municipal Total Return 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.
Municipal Total Return 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.
Municipal Total Return 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.
Municipal Total Return Managed Accounts Portfolio | Unrated Security Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Unrated Security Risk—Unrated securities determined by the Portfolio’s sub-adviser to be of comparable quality to rated securities which the Portfolio may purchase may pay a higher interest rate than such rated securities and be subject to a greater risk of illiquidity or price changes. Less public information is typically available about unrated securities or issuers than rated securities or issuers.
Municipal Total Return 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.
Municipal Total Return 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.
Municipal Total Return 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.
Municipal Total Return 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.
Municipal Total Return Managed Accounts Portfolio | Municipal Total Return 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 0.07%
Total Annual Portfolio Operating Expenses rr_ExpensesOverAssets 0.07%
Fee Waivers and/or Expense Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.07%) [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]
2014 rr_AnnualReturn2014 13.86% [4]
2015 rr_AnnualReturn2015 5.17% [4]
2016 rr_AnnualReturn2016 1.00% [4]
2017 rr_AnnualReturn2017 7.40% [4]
2018 rr_AnnualReturn2018 1.06% [4]
2019 rr_AnnualReturn2019 9.24% [4]
2020 rr_AnnualReturn2020 5.24% [4]
2021 rr_AnnualReturn2021 2.68% [4]
2022 rr_AnnualReturn2022 (12.00%) [4]
2023 rr_AnnualReturn2023 6.20% [4]
Year to Date Return, Label rr_YearToDateReturnLabel Year-to-date total return
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2024
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.51%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 6.89%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (7.40%)
1 Year rr_AverageAnnualReturnYear01 6.20%
5 Years rr_AverageAnnualReturnYear05 1.98%
10 Years rr_AverageAnnualReturnYear10 3.77%
Inception Date rr_AverageAnnualReturnInceptionDate May 31, 2007
Municipal Total Return Managed Accounts Portfolio | Return After Taxes on Distributions | Municipal Total Return Managed Accounts Portfolio  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.19%
5 Years rr_AverageAnnualReturnYear05 1.98%
10 Years rr_AverageAnnualReturnYear10 3.77%
Inception Date rr_AverageAnnualReturnInceptionDate May 31, 2007
Municipal Total Return Managed Accounts Portfolio | Return After Taxes on Distributions and Sale of Shares | Municipal Total Return Managed Accounts Portfolio  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.22%
5 Years rr_AverageAnnualReturnYear05 2.28%
10 Years rr_AverageAnnualReturnYear10 3.77%
Inception Date rr_AverageAnnualReturnInceptionDate May 31, 2007
Municipal Total Return Managed Accounts Portfolio | Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.40% [5]
5 Years rr_AverageAnnualReturnYear05 2.25% [5]
10 Years rr_AverageAnnualReturnYear10 3.03% [5]
Inception Date rr_AverageAnnualReturnInceptionDate May 31, 2007 [5]
Municipal Total Return Managed Accounts Portfolio | Bloomberg 7 Year Municipal Bond Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.99% [6]
5 Years rr_AverageAnnualReturnYear05 2.14% [6]
10 Years rr_AverageAnnualReturnYear10 2.56% [6]
Inception Date rr_AverageAnnualReturnInceptionDate May 31, 2007 [6]
[1] The Portfolio itself pays no management fees. You will, however, continue to incur the management fee for the amount invested in the Portfolio through the separately managed account associated with such investment.
[2] The investment adviser has agreed irrevocably during the existence of the Portfolio to waive all fees and pay or reimburse all expenses of the Portfolio, except for interest expense, taxes, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses. This expense limitation may be terminated or modified only with the approval of shareholders of the Portfolio.
[3] The investment adviser has agreed irrevocably during the existence of the Portfolio to waive all fees and pay or reimburse all expenses of the Portfolio, except for interest expense, taxes, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses.
[4] Year-to-date total return as of September 30, 2024 was 3.51%.
[5]
An index that measures the performance of the U.S. municipal bond market. It includes a diverse range of tax-exempt and taxable municipal bonds issued by state and local governments across the United States. The index is market-capitalization weighted and primarily consists of investment-grade bonds, providing investors with a snapshot of the overall performance of the municipal bond market.
[6]
An index designed to measure the performance of tax-exempt U.S. investment grade municipal bonds with remaining maturities between six and eight years.