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Risk/Return: rr_RiskReturnAbstract  
ProspectusDate rr_ProspectusDate Jan. 10, 2012
Focus Value Portfolio (Prospectus Summary) | Focus Value Portfolio
  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return, Heading rr_RiskReturnHeading Focus Value Portfolio
Investment Objective, Heading rr_ObjectiveHeading Investment Goal
investment Objective, Primary rr_ObjectivePrimaryTextBlock 
The Portfolio's investment goal is long-term growth of capital.
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 47% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 47.00%
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 investing in equity
securities selected on the basis of value criteria, without regard to market
capitalization.

The Portfolio offers you access to three different professional managers. The
Portfolio utilizes a "focus" strategy, which means each manager actively invests
in a small number of holdings which constitute some of its favorite
stock-picking ideas at any given moment. A focus strategy reflects the belief
that, over time, the performance of most investment managers' "highest
confidence" stocks exceeds that of their more diversified portfolios.

Each subadviser will generally invest in up to 10 securities, and the Portfolio
will generally hold up to a total of 30 securities. Examples of when the
Portfolio may hold more than the specified number of securities include, but are
not limited to, re-balancing or purchase and sale transactions, including
following the employment of a new subadviser to manage the Portfolio or a
portion of the Portfolio. In this situation the new manager may be selling
securities and buying new securities at the same time, resulting in the
Portfolio holding more than its usual number of holdings. Each subadviser may
invest in additional financial instruments for the purpose of cash management or
to hedge a security position. The Portfolio is non-diversified.
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.

Securities Selection Risk. A strategy used by the Portfolio, or individual
securities selected by the portfolio manager, may fail to produce the intended
return.

Equity Securities Risk. The Portfolio invests principally 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.

Non-Diversification Risk. A Portfolio that is organized as a "non-diversified"
portfolio may invest a larger portion of its assets in the stock of a single
company than a diversified fund, and thus, it can concentrate in a smaller
number of issuers. A non-diversified portfolio's risk is increased because the
effect of the performance of each security on the Portfolio's overall
performance is greater.

Value Investing Risk. When investing in securities which are believed to be
undervalued in the market, there is a risk that the market may not recognize a
security's intrinsic value for a long period of time, or that a stock judged to
be undervalued may actually be appropriately priced.
Risk, Lose Money rr_RiskLoseMoney If the value of the assets of the Portfolio goes down, you could lose money.
Risk, Nondiversified Status rr_RiskNondiversifiedStatus A Portfolio that is organized as a "non-diversified" portfolio may invest a larger portion of its assets in the stock of a single company than a diversified fund, and thus, it can concentrate in a smaller number of issuers. A non-diversified portfolio's risk is increased because the effect of the performance of each security on the Portfolio's overall performance is greater.
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 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 Russell 3000® Value Index and Russell 1000® Value Index.
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 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 Russell 3000® Value Index and Russell 1000® Value Index.
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 2 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.
Bar Chart, Closing rr_BarChartClosingTextBlock 
During the periods shown in the bar chart, the highest return for a quarter was
20.75% (quarter ended June 30, 2003) and the lowest return for a quarter was
-20.77% (quarter ended December 31, 2008).
Performance Table, Closing rr_PerformanceTableClosingTextBlock 
No performance for Class 1 shares is shown because there were no Class 1 shares
outstanding during the periods shown. Returns are presented for Class 2 shares,
which are not offered in this Prospectus. Class 1 shares would have had
substantially similar annual returns because the shares are invested in the same
portfolio of securities and the annual returns would differ only to the extent
that the share classes do not have the same expenses.
Average Annual Returns, Caption rr_AverageAnnualReturnCaption Average Annual Total Returns (For the periods ended December 31, 2011)
Focus Value Portfolio (Prospectus Summary) | Focus Value Portfolio | Class 1
  
Risk/Return: rr_RiskReturnAbstract  
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest return for a quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2003
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 20.75%
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 (20.77%)
Focus Value Portfolio | Russell 3000® Value Index
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, Label rr_AverageAnnualReturnLabel Russell 3000® Value Index
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (0.10%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (2.58%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 4.08%
Focus Value Portfolio | Russell 1000® Value Index
  
Risk/Return: rr_RiskReturnAbstract  
Average Annual Returns, Label rr_AverageAnnualReturnLabel Russell 1000® Value Index
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 0.39%
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (2.64%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 3.89%
Focus Value Portfolio | Class 1
  
Risk/Return: rr_RiskReturnAbstract  
Management Fees rr_ManagementFeesOverAssets 1.00%
Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.16% [1]
Total Annual Portfolio Operating Expenses rr_ExpensesOverAssets 1.16%
Expense Example, With Redemption, 1 Year rr_ExpenseExampleYear01 118
Expense Example, With Redemption, 3 Years rr_ExpenseExampleYear03 368
Expense Example, With Redemption, 5 Years rr_ExpenseExampleYear05 638
Expense Example, With Redemption, 10 Years rr_ExpenseExampleYear10 1,409
Annual Return 2002 rr_AnnualReturn2002 (20.88%)
Annual Return 2003 rr_AnnualReturn2003 41.89%
Annual Return 2004 rr_AnnualReturn2004 16.18%
Annual Return 2005 rr_AnnualReturn2005 7.23%
Annual Return 2006 rr_AnnualReturn2006 23.69%
Annual Return 2007 rr_AnnualReturn2007 6.94%
Annual Return 2008 rr_AnnualReturn2008 (36.95%)
Annual Return 2009 rr_AnnualReturn2009 31.47%
Annual Return 2010 rr_AnnualReturn2010 14.83%
Annual Return 2011 rr_AnnualReturn2011 (13.65%)
Average Annual Returns, Label rr_AverageAnnualReturnLabel Class 2 Shares
Average Annual Returns, 1 Year rr_AverageAnnualReturnYear01 (13.65%)
Average Annual Returns, 5 Years rr_AverageAnnualReturnYear05 (2.55%)
Average Annual Returns, 10 Years rr_AverageAnnualReturnYear10 4.28%
[1] "Other Expenses" have been estimated because no Class 1 Shares were outstanding during the Portfolio's last fiscal year.