Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
ProspectusDate	rr_ProspectusDate	Jul. 28, 2011
Multi-Managed Income Portfolio (Prospectus Summary) | Multi-Managed Income Portfolio
Risk/Return:	rr_RiskReturnAbstract
Risk/Return, Heading	rr_RiskReturnHeading	Multi-Managed Income Portfolio
Investment Objective, Heading	rr_ObjectiveHeading	Investment Goal
investment Objective, Primary	rr_ObjectivePrimaryTextBlock	The Portfolio's investment goal is capital preservation.
Expense, Heading	rr_ExpenseHeading	Fees and Expenses of the Portfolio
Expense, Narrative	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses that you may pay if you buy and hold shares of the Portfolio. The Portfolio's annual operating expenses do not reflect the separate account fees charged in the variable annuity or variable life insurance policy ("Variable Contracts"), in which the Portfolio is offered. Please see your Variable Contract prospectus for more details on the separate account fees.
Operating Expenses, Caption	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	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 may indicate higher transaction costs. 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 74% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	74.00%
Expense Example, Heading	rr_ExpenseExampleHeading	Expense Example
Expense Example, Narrative	rr_ExpenseExampleNarrativeTextBlock	This 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 redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Portfolio's operating expenses remain the same. The Example does not reflect charges imposed by the Variable Contract. See the Variable Contract prospectus for information on such charges. Although your actual costs may be higher or lower, based on these assumptions and the net expenses shown in the fee table, your costs would be:
Investment Strategy, Heading	rr_StrategyHeading	Principal Investment Strategies of the Portfolio
Investment Strategy, Narrative	rr_StrategyNarrativeTextBlock	The Portfolio attempts to achieve its investment goal by allocating its assets among three distinct, actively-managed investment components (the "Managed Components"), each with a different investment strategy. The Managed Components include a balanced component, fixed income component and a growth component. The Managed Components each invest to varying degrees, according to its investment strategy, in a diverse portfolio of securities including, but not limited to, common stocks, securities with equity characteristics (such as preferred stocks, warrants or fixed income securities convertible into common stock), corporate and U.S. government fixed income securities, money market instruments and/or cash or cash equivalents. The allocation of the Portfolio's assets among three components is as follows: • Balanced Component 17% (8.5% equities/8.5% fixed income) • Fixed Income Component 75% • Growth Component 8% The Balanced Component invests principally in equity securities of large-capitalization companies and investment grade fixed income securities. As noted above, approximately 75% of the Portfolio's assets will be allocated to the Fixed Income Component which invests, under normal circumstances, at least 80% of its net assets in investment grade fixed income securities (U.S. or foreign) and at least 80% in U.S. dollar denominated securities. The component may also invest substantially in junk bonds (up to 20% of the component's assets), short-term investments (up to 20% of the component's assets), foreign securities (up to 20% of the component's assets denominated in foreign currencies; up to 100% of the component's assets denominated in U.S. dollars), asset-backed and mortgage-backed securities and when-issued and delayed-delivery securities. The Growth Component invests principally in equity securities selected for their growth potential. Although the component's investments in equity securities may be primarily in large-capitalization companies, it may invest substantially in small- and mid-capitalization companies. Differences in investment returns among the Managed Components will cause the actual percentages to vary over the course of a calendar quarter from the target allocations referenced above. Accordingly, the Portfolio's assets will be reallocated or "rebalanced" among the Managed Components on at least a quarterly basis to restore the target allocations for the Portfolio.
Risk, Heading	rr_RiskHeading	Principal Risks of Investing in the Portfolio
Risk, Narrative	rr_RiskNarrativeTextBlock	There can be no assurance that the Portfolio's investment goal will be met or that the net return on an investment in the Portfolio will exceed what could have been obtained through other investment or savings vehicles. Shares of the Portfolio are not bank deposits and are not guaranteed or insured by any bank, government entity or the Federal Deposit Insurance Corporation. As with any mutual fund, there is no guarantee that the Portfolio will be able to achieve its investment goals. If the value of the assets of the Portfolio goes down, you could lose money. The following is a summary description of the principal risks of investing in the Portfolio. Risk of Investing in Bonds. As with any fund that invests principally in bonds, the value of your investment in the Portfolio may go up or down in response to changes in interest rates or defaults (or even the potential for future defaults) by bond issuers. The market value of bonds and other fixed income securities usually tends to vary inversely with the level of interest rates; as interest rates rise the value of such securities typically falls, and as interest rates fall, the value of such securities typically rises. Longer-term and lower coupon bonds tend to be more sensitive to changes in interest rates. Interest Rate Fluctuations Risk. Fixed income securities may be subject to volatility due to changes in interest rates. The market value of bonds and other fixed income securities usually tends to vary inversely with the level of interest rates; as interest rates rise the value of such securities typically falls, and as interest rates fall, the value of such securities typically rises. Longer-term and lower coupon bonds tend to be more sensitive to changes in interest rates. Risk of Investing in Junk Bonds. The Portfolio may invest significantly in junk bonds, which are considered speculative. Junk bonds carry a substantial risk of default or changes in the issuer's creditworthiness, or they may already be in default at the time of purchase. Credit Risk. Credit risk applies to most debt securities, but is generally not a factor for obligations backed by the "full faith and credit" of the U.S. Government. The Portfolio could lose money if the issuer of a fixed income security is unable or perceived to be unable to pay interest or repay principal when it becomes due. Various factors could affect the issuer's actual or perceived willingness or ability to make timely interest or principal payments, including changes in the issuer's financial condition or in general economic conditions. Debt securities backed by an issuer's taxing authority may be subject to legal limits on the issuer's power to increase taxes or otherwise raise revenue, or may be dependent on legislative appropriation or government aid. Certain debt securities are backed only by revenues derived from a particular project or source, rather than by an issuer's taxing authority, and thus may have a greater risk of default. Mortgage- and Asset-Backed Securities Risk. Mortgage- and asset-backed securities represent interests in "pools" of mortgages or other assets, including consumer loans or receivables held in trust. The characteristics of these mortgage-backed and asset-backed securities differ from traditional fixed-income securities. Mortgage-backed securities are subject to "prepayment risk" and "extension risk." Prepayment risk is the risk that, when interest rates fall, certain types of obligations will be paid off by the obligor more quickly than originally anticipated and the Fund may have to invest the proceeds in securities with lower yields. Extension risk is the risk that, when interest rates rise, certain obligations will be paid off by the obligor more slowly than anticipated causing the value of these securities to fall. Small movements in interest rates (both increases and decreases) may quickly and significantly reduce the value of certain mortgage-backed securities. These securities also are subject to risk of default on the underlying mortgage, particularly during periods of economic downturn. Equity Securities Risk. The Portfolio invests significantly in equity securities and is therefore subject to the risk that stock prices will fall and may underperform other asset classes. Individual stock prices fluctuate from day-to-day and may decline significantly. The prices of individual stocks may be negatively affected by poor company results or other factors affecting individual prices, as well as industry and/or economic trends and developments affecting industries or the securities market as a whole. Securities Selection Risk. A strategy used by the Portfolio, or individual securities selected by the portfolio manager, may fail to produce the intended return. Large-Capitalization Companies Risk. Large-cap companies tend to be less volatile than companies with smaller market capitalizations. In exchange for this potentially lower risk, the Portfolio's value may not rise as much as the value of portfolios that emphasize smaller companies. Growth Stock Risk. Growth stocks can be volatile for several reasons. Since the issuers usually reinvest a high portion of earnings in their own business, growth stocks may lack the comfortable dividend yield associated with value stocks that can cushion total return in a bear market. Also, growth stocks normally carry a higher price/earnings ratio than many other stocks. Consequently, if earnings expectations are not met, the market price of growth stocks will often go down more than other stocks. However, the market frequently rewards growth stocks with price increases when expectations are met or exceeded. Active Trading Risk. A strategy used whereby the Portfolio may engage in frequent trading of portfolio securities to achieve its investment goal. Active trading may result in high portfolio turnover and correspondingly greater brokerage commissions and other transaction costs for the Portfolio.
Risk, Lose Money	rr_RiskLoseMoney	As with any mutual fund, there is no guarantee that the Portfolio will be able to achieve its investment goals. If the value of the assets of the Portfolio goes down, you could lose money.
Risk, Not Insured Depository Institution	rr_RiskNotInsuredDepositoryInstitution	Shares of the Portfolio are not bank deposits and are not guaranteed or insured by any bank, government entity or the Federal Deposit Insurance Corporation.
Bar Chart and Performance Table, Heading	rr_BarChartAndPerformanceTableHeading	Performance Information
Performance, Narrative	rr_PerformanceNarrativeTextBlock	The following Risk/Return Bar Chart and Table illustrate the risks of investing in Class 1 shares of the Portfolio by showing changes in the Portfolio's performance from calendar year to calendar year and comparing the Portfolio's average annual returns to those of the S&P 500® Index and a Blended Index and each of its components. The Blended Index consists of 17.35% Russell 1000® Index, 80.95% Barclays Capital U.S. Aggregate Index, and 1.7% Treasury Bills. The returns of the Treasury Bills Index for the periods since inception of class 3 shares is from November 30, 2002. Fees and expenses incurred at the contract level are not reflected in the bar chart or table. If these amounts were reflected, returns would be less than those shown. Of course, past performance is not necessarily an indication of how the Portfolio will perform in the future.
Performance, Information Illustrates Variability of Returns	rr_PerformanceInformationIllustratesVariabilityOfReturns	The following Risk/Return Bar Chart and Table illustrate the risks of investing in Class 1 shares of the Portfolio by showing changes in the Portfolio's performance from calendar year to calendar year and comparing the Portfolio's average annual returns to those of the S&P 500® Index and a Blended Index and each of its components.
Performance, Past Does Not Indicate Future	rr_PerformancePastDoesNotIndicateFuture	Of course, past performance is not necessarily an indication of how the Portfolio will perform in the future.
Bar Chart, Heading	rr_BarChartHeading	Class 1 Shares
Bar Chart, Does Not Reflect Sales Loads	rr_BarChartDoesNotReflectSalesLoads	Fees and expenses incurred at the contract level are not reflected in the bar chart or table. If these amounts were reflected, returns would be less than those shown.
Bar Chart, Closing	rr_BarChartClosingTextBlock	During the 10-year period shown in the bar chart, the highest return for a quarter was 8.93% (quarter ended June 30, 2009) and the lowest return for a quarter was -4.76% (quarter ended December 31, 2008). The year to date calendar return as of June 30, 2011 was 2.59%.
Average Annual Returns, Caption	rr_AverageAnnualReturnCaption	Average Annual Total Returns (For the periods ended December 31, 2010)
Multi-Managed Income Portfolio (Prospectus Summary) | Multi-Managed Income Portfolio | Class 1
Risk/Return:	rr_RiskReturnAbstract
Year to Date Return, Label	rr_YearToDateReturnLabel	The year to date calendar return
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2011
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	2.59%
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	highest return for a quarter
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	8.93%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	lowest return for a quarter
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Dec. 31, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(4.76%)
Multi-Managed Income Portfolio | Blended Index
Risk/Return:	rr_RiskReturnAbstract
Average Annual Returns, Label	rr_AverageAnnualReturnLabel	Blended Index
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	8.35%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	5.42%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	5.29%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	5.53%
Average Annual Returns, Inception Date	rr_AverageAnnualReturnInceptionDate	Nov. 11, 2002
Multi-Managed Income Portfolio | Barclays Capital U.S. Aggregate Index
Risk/Return:	rr_RiskReturnAbstract
Average Annual Returns, Label	rr_AverageAnnualReturnLabel	Barclays Capital U.S. Aggregate Index
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	6.54%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	5.80%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	5.83%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	5.07%
Average Annual Returns, Inception Date	rr_AverageAnnualReturnInceptionDate	Nov. 11, 2002
Multi-Managed Income Portfolio | Russell 1000® Index
Risk/Return:	rr_RiskReturnAbstract
Average Annual Returns, Label	rr_AverageAnnualReturnLabel	Russell 1000® Index
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	16.10%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	2.59%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	1.83%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	6.95%
Average Annual Returns, Inception Date	rr_AverageAnnualReturnInceptionDate	Nov. 11, 2002
Multi-Managed Income Portfolio | Treasury Bills
Risk/Return:	rr_RiskReturnAbstract
Average Annual Returns, Label	rr_AverageAnnualReturnLabel	Treasury Bills
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	0.14%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	2.13%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	2.12%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	2.01%
Average Annual Returns, Inception Date	rr_AverageAnnualReturnInceptionDate	Nov. 11, 2002
Multi-Managed Income Portfolio | S&P 500® Index
Risk/Return:	rr_RiskReturnAbstract
Average Annual Returns, Label	rr_AverageAnnualReturnLabel	S&P 500® Index
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	15.06%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	2.29%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	1.41%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	6.37%
Average Annual Returns, Inception Date	rr_AverageAnnualReturnInceptionDate	Nov. 11, 2002
Multi-Managed Income Portfolio | Class 1
Risk/Return:	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.77%
Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Other Expenses	rr_OtherExpensesOverAssets	0.28%
Total Annual Portfolio Operating Expenses	rr_ExpensesOverAssets	1.05%
Expense Example, With Redemption, 1 Year	rr_ExpenseExampleYear01	107
Expense Example, With Redemption, 3 Years	rr_ExpenseExampleYear03	334
Expense Example, With Redemption, 5 Years	rr_ExpenseExampleYear05	579
Expense Example, With Redemption, 10 Years	rr_ExpenseExampleYear10	1,283
Annual Return 2001	rr_AnnualReturn2001	0.66%
Annual Return 2002	rr_AnnualReturn2002	1.59%
Annual Return 2003	rr_AnnualReturn2003	9.09%
Annual Return 2004	rr_AnnualReturn2004	5.39%
Annual Return 2005	rr_AnnualReturn2005	3.64%
Annual Return 2006	rr_AnnualReturn2006	4.37%
Annual Return 2007	rr_AnnualReturn2007	7.69%
Annual Return 2008	rr_AnnualReturn2008	(9.76%)
Annual Return 2009	rr_AnnualReturn2009	22.20%
Annual Return 2010	rr_AnnualReturn2010	8.06%
Average Annual Returns, Label	rr_AverageAnnualReturnLabel	Class 1 Shares
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	8.06%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	6.02%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	5.02%
Multi-Managed Income Portfolio | Class 2
Risk/Return:	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.77%
Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.15%
Other Expenses	rr_OtherExpensesOverAssets	0.28%
Total Annual Portfolio Operating Expenses	rr_ExpensesOverAssets	1.20%
Expense Example, With Redemption, 1 Year	rr_ExpenseExampleYear01	122
Expense Example, With Redemption, 3 Years	rr_ExpenseExampleYear03	381
Expense Example, With Redemption, 5 Years	rr_ExpenseExampleYear05	660
Expense Example, With Redemption, 10 Years	rr_ExpenseExampleYear10	1,455
Average Annual Returns, Label	rr_AverageAnnualReturnLabel	Class 2 Shares
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	7.91%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	5.87%
Average Annual Returns, 10 Years	rr_AverageAnnualReturnYear10	4.87%
Multi-Managed Income Portfolio | Class 3
Risk/Return:	rr_RiskReturnAbstract
Management Fees	rr_ManagementFeesOverAssets	0.77%
Service (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Other Expenses	rr_OtherExpensesOverAssets	0.28%
Total Annual Portfolio Operating Expenses	rr_ExpensesOverAssets	1.30%
Expense Example, With Redemption, 1 Year	rr_ExpenseExampleYear01	132
Expense Example, With Redemption, 3 Years	rr_ExpenseExampleYear03	412
Expense Example, With Redemption, 5 Years	rr_ExpenseExampleYear05	713
Expense Example, With Redemption, 10 Years	rr_ExpenseExampleYear10	1,568
Average Annual Returns, Label	rr_AverageAnnualReturnLabel	Class 3 Shares
Average Annual Returns, 1 Year	rr_AverageAnnualReturnYear01	7.75%
Average Annual Returns, 5 Years	rr_AverageAnnualReturnYear05	5.76%
Average Annual Returns, Since Inception	rr_AverageAnnualReturnSinceInception	5.80%
Average Annual Returns, Inception Date	rr_AverageAnnualReturnInceptionDate	Nov. 11, 2002