Auto Market Index Member Average Annual Returns, Inception Date Secondary Average Annual Returns, Since Inception Secondary Average Annual Returns, 10 Years Secondary Average Annual Returns, 3 Years Average Annual Returns, Year to Date Additional Expense (outside of Total Expenses) Other Expenses Component4 Other Expenses Component5 Other Expenses Expense Example, By Year, No Expense Reimbursement, Column Column Expense Example, No Redemption, No Expense Reimbursement, 10 Years 10 Years 10 Years Expense Example, No Redemption, No Expense Reimbursement, 1 Year 1 Year 1 Year Expense Example, No Redemption, No Expense Reimbursement, 3 Years 3 Years 3 Years Expense Example, No Redemption, No Expense Reimbursement, 5 Years 5 Years 5 Years Expense Example, No Redemption, No Expense Reimbursement,By Year, Column Column Expense Example, With Redemption, No Expense Reimbursement, 10 Years 10 Years 10 Years Expense Example, With Redemption, No Expense Reimbursement, 1 Year 1 Year 1 Year Expense Example, With Redemption, No Expense Reimbursement, 3 Years 3 Years 3 Years Expense Example, With Redemption, No Expense Reimbursement, 5 Years 5 Years 5 Years Fee Waiver or Reimbursement and Recoupments Other Expenses Namespace URI Operating Expense Closing Additional Expense (1) Other Expenses Additional Expense (2) Other Expenses Purchase Fee (as a percentage of Amount Invested) Purchase Fee (as a percentage of Amount Invested) Purchase Fee Purchase Fee Recoupments Other Expenses Shareholder Fees, Other 2 Shareholder Fees And Operating Expenses Supplement Text Supplement Closing Amendment Description Amendment Flag Document Creation Date Prospectus Document Effective Date Document [Axis] Document Period End Date Document Type Entities [Table] Central Index Key Series Registrant Name Entity [Text Block] Series [Axis] Trading Symbol Acquired Fund Fees and Expenses, Based on Estimates Acquired Fund Fees and Expenses After Taxes on Distributions and Sales After Taxes on Distributions Annual Fund Operating Expenses [Table] Annual Return 1990 Annual Return 1991 Annual Return 1992 Annual Return 1993 Annual Return 1994 Annual Return 1995 Annual Return 1996 Annual Return 1997 Annual Return 1998 Annual Return 1999 Annual Return 2000 Annual Return 2001 Annual Return 2002 Annual Return 2003 Annual Return 2004 Annual Return 2005 Annual Return 2006 Annual Return 2007 Annual Return 2008 Annual Return 2009 Annual Return 2010 Annual Return 2011 Annual Return 2012 Annual Return 2013 Annual Return 2014 Annual Return, Caption Caption Annual Return, Column Name Column Annual Return, Inception Date Inception Date Average Annual Return: DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAbstract DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesAbstract DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesInceptionDate DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesLabel DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesSinceInception DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesYear01 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesYear05 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsAndSalesYear10 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsInceptionDate DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsLabel DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsSinceInception DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsYear01 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsYear05 DEPRECATED AverageAnnualReturnAfterTaxesOnDistributionsYear10 Average Annual Returns, Caption Average Annual Returns, Column Name Average Annual Returns, Inception Date Average Annual Returns, Label Average Annual Returns, Since Inception Average Annual Returns, 1 Year Average Annual Returns, 5 Years Average Annual Returns, 10 Years Bar Chart and Performance Table, Heading Bar Chart and Performance Table Section: Bar Chart Closing: Bar Chart, Closing Bar Chart, Does Not Reflect Sales Loads Bar Chart, Footnotes Bar Chart, Heading Highest Quarterly Return, Date Highest Quarterly Return Lowest Quarterly Return, Date Lowest Quarterly Return Bar Chart Narrative: Bar Chart, Narrative Bar Chart, Reason Selected Class Different from Immediately Preceding Period Bar Chart, Returns for Class Not Offered in Prospectus Bar Chart Table: Bar Chart [Table] Bar Chart, Year to Date Return, Date Bar Chart, Year to Date Return Component1 Other Expenses Component2 Other Expenses Component3 Other Expenses Distribution and Service (12b-1) Fees Distribution or Similar (Non 12b-1) Fees Exchange Fee (as a percentage of Amount Redeemed) Exchange Fee Expense Breakpoint, Discounts Expense Breakpoint, Minimum Investment Required Amount Expense Example: Expense Example, By Year, Caption Expense Example, By Year, Column Column Expense Example, By Year, Heading Expense Example Closing: Expense Example, Closing Expense Example, Footnotes Expense Example, Heading Expense Example Narrative: Expense Example, Narrative Expense Example, No Redemption: Expense Example, No Redemption, By Year, Caption Expense Example, No Redemption, By Year, Column Column Expense Example, No Redemption, Narrative Expense Example, No Redemption [Table] Expense Example, With Redemption, 2 Years 2 Years Expense Example, With Redemption, No Expense Reimbursement, 2 Years 2 Years Expense Example, With Redemption, No Expense Reimbursement, 4 Years 4 Years Expense Example, With Redemption, 4 Years 4 Years Expense Example, No Redemption, 2 Year 2 Year Expense Example, No Redemption, 4 Year 4 Year Expense Example, No Redemption, 1 Year 1 Year Expense Example, No Redemption, 3 Years 3 Years Expense Example, No Redemption, 5 Years 5 Years Expense Example, No Redemption, 10 Years 10 Years Expense Example, With Redemption [Table] Expense Example, With Redemption, 1 Year 1 Year Expense Example, With Redemption, 3 Years 3 Years Expense Example, With Redemption, 5 Years 5 Years Expense Example, With Redemption, 10 Years 10 Years Expense, Exchange Traded Fund, Commissions Expense Footnotes: Expense, Footnotes Expense, Heading Expense, Narrative Expenses: Expenses, Deferred Charges Expenses, Explanation of Nonrecurring Account Fee Expenses, Not Correlated to Ratio Due to Acquired Fund Fees Expenses, Other Expenses, Had Extraordinary Expenses Been Included Expenses (as a percentage of Assets): Expenses (as a percentage of Assets) Total Expenses Expenses, Range of Exchange Fees Expenses, Represent Both Master and Feeder Expenses, Restated to Reflect Current Fee Waiver or Reimbursement over Assets, Date of Termination Fee Waiver or Reimbursement Fee Waiver or Reimbursement Form N-1A: Highest Quarterly Return, Label Label Index No Deduction for Fees, Expenses, Taxes Lowest Quarterly Return, Label Label Management Fees (as a percentage of Assets) Market Index Performance [Table] Market Index Return: DEPRECATED Market Index Return, Inception Date DEPRECATED Market Index Return, Label DEPRECATED Market Index Return, Since inception DEPRECATED 1 Year DEPRECATED 5 Years DEPRECATED 10 Years Maximum Account Fee (as a percentage of Assets) Maximum Account Fee Maximum Cumulative Sales Charge (as a percentage of Offering Price) Maximum Cumulative Sales Charge (as a percentage) Maximum Deferred Sales Charge (as a percentage of Offering Price) Maximum Deferred Sales Charge (as a percentage) Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) Money Market, Seven Day Tax Equivalent Yield Money Market, Seven Day Yield, Caption Money Market, Seven Day Yield, Column Money Market, Seven Day Yield, Phone Number Money Market, Seven Day Yield Net Expenses (as a percentage of Assets): Net Expenses (as a percentage of Assets) Net Expenses Investment Objective, Heading investment Objective, Primary Investment Objective, Secondary Objective Section: Operating Expenses: Operating Expenses, Caption Operating Expenses, Column Name Other Expenses, New Fund, Based on Estimates Other Expenses over Assets: Other Expenses (as a percentage of Assets): Other Expenses Performance, Additional Market Index Performance, Availability Phone Number Performance, Availability Website Address Performance, Information Illustrates Variability of Returns Performance Measure [Axis] Before Taxes Performance Narrative: Performance, Narrative Performance, One Year or Less Performance, Past Does Not Indicate Future Performance Table Closing: Performance Table, Closing Performance Table, Does Reflect Sales Loads Performance Table, Explanation after Tax Higher Performance Table, Footnotes, Reason Performance Information for Class Different from Immediately Preceding Period Performance Table, Footnotes Performance Table, Heading Performance Table, Market Index Changed Performance Table, Narrative Performance Table, Not Relevant to Tax Deferred Performance Table, One Class of after Tax Shown Performance Table Section: Performance [Table] Performance Table, Uses Highest Federal Rate Portfolio Turnover: Portfolio Turnover, Heading Portfolio Turnover, Rate Portfolio Turnover Prospectus Date Prospectus [Line Items] Share Class [Axis] Prospectus: Redemption Fee (as a percentage of Amount Redeemed) Redemption Fee (as a percentage of Amount Redeemed) Redemption Fee Redemption Fee Risk, Caption Risk, Closing Risk, Column Name Risk, Footnotes Risk, Heading Risk, Lose Money Risk, Money Market Fund Risk, Narrative Risk, Nondiversified Status Risk, Not Insured Depository Institution Risk/Return: Risk/Return Detail [Table] Risk/Return, Heading Risk Section: Risk Share Classes Shareholder Fees, Other Shareholder Fees: Shareholder Fees, Caption Shareholder Fees, Column Name Shareholder Fees [Table] Investment Strategy, Heading Investment Strategy, Narrative Investment Strategy, Portfolio Concentration Strategy Section: Thirty Day Tax Equivalent Yield Thirty Day Yield, Caption Thirty Day Yield, Column Name Thirty Day Yield, Phone Number Thirty Day Yield Year to Date Return, Label Multi-Managed Growth Portfolio S000008035Member Multi-Managed Growth Portfolio Multi-Managed Growth Portfolio (Prospectus Summary): P0001-S000008035Member Multi-Managed Growth Portfolio (Prospectus Summary): Class 1 C000021808Member Class 1 Class 2 C000021809Member Class 2 Class 3 C000021810Member Class 3 Mid Cap Growth Portfolio S000008036Member Mid Cap Growth Portfolio Mid Cap Growth Portfolio (Prospectus Summary): P0001-S000008036Member Mid Cap Growth Portfolio (Prospectus Summary): Class 1 C000021811Member Class 1 Class 2 C000021812Member Class 2 Class 3 C000021813Member Class 3 Mid Cap Value Portfolio S000008037Member Mid Cap Value Portfolio Mid Cap Value Portfolio (Prospectus Summary): P0001-S000008037Member Mid Cap Value Portfolio (Prospectus Summary): Class 1 C000021814Member Class 1 Class 2 C000021815Member Class 2 Class 3 C000021816Member Class 3 Small Cap Portfolio S000008038Member Small Cap Portfolio Small Cap Portfolio (Prospectus Summary): P0001-S000008038Member Small Cap Portfolio (Prospectus Summary): Class 1 C000021817Member Class 1 Class 2 C000021818Member Class 2 Class 3 C000021819Member Class 3 International Equity Portfolio S000008039Member International Equity Portfolio International Equity Portfolio (Prospectus Summary): P0001-S000008039Member International Equity Portfolio (Prospectus Summary): Class 1 C000021820Member Class 1 Class 2 C000021821Member Class 2 Class 3 C000021822Member Class 3 Diversified Fixed Income Portfolio S000008040Member Diversified Fixed Income Portfolio Diversified Fixed Income Portfolio (Prospectus Summary): P0001-S000008040Member Diversified Fixed Income Portfolio (Prospectus Summary): Class 1 C000021823Member Class 1 Class 2 C000021824Member Class 2 Class 3 C000021825Member Class 3 Real Return Portfolio S000008041Member Real Return Portfolio Real Return Portfolio (Prospectus Summary): P0001-S000008041Member Real Return Portfolio (Prospectus Summary): Class 3 C000021826Member Class 3 CLASS 1 C000109742Member CLASS 1 Cash Management Portfolio S000008042Member Cash Management Portfolio Cash Management Portfolio (Prospectus Summary): P0001-S000008042Member Cash Management Portfolio (Prospectus Summary): Class 1 C000021827Member Class 1 Class 2 C000021828Member Class 2 Class 3 C000021829Member Class 3 Focus Growth Portfolio S000008043Member Focus Growth Portfolio Focus Growth Portfolio (Prospectus Summary): P0001-S000008043Member Focus Growth Portfolio (Prospectus Summary): Class 1 C000021830Member Class 1 Class 2 C000021831Member Class 2 Class 3 C000021832Member Class 3 Multi-Managed Moderate Growth Portfolio S000008046Member Multi-Managed Moderate Growth Portfolio Multi-Managed Moderate Growth Portfolio (Prospectus Summary): P0001-S000008046Member Multi-Managed Moderate Growth Portfolio (Prospectus Summary): Class 1 C000021837Member Class 1 Class 2 C000021838Member Class 2 Class 3 C000021839Member Class 3 Focus Value Portfolio S000008047Member Focus Value Portfolio Focus Value Portfolio (Prospectus Summary): P0001-S000008047Member Focus Value Portfolio (Prospectus Summary): Class 2 C000021840Member Class 2 Class 3 C000021841Member Class 3 CLASS 1 C000109743Member CLASS 1 Allocation Growth Portfolio S000008048Member Allocation Growth Portfolio Allocation Growth Portfolio (Prospectus Summary): P0001-S000008048Member Allocation Growth Portfolio (Prospectus Summary): Class 3 C000021842Member Class 3 Allocation Moderate Growth Portfolio S000008049Member Allocation Moderate Growth Portfolio Allocation Moderate Growth Portfolio (Prospectus Summary): P0001-S000008049Member Allocation Moderate Growth Portfolio (Prospectus Summary): Class 3 C000021843Member Class 3 Allocation Moderate Portfolio S000008050Member Allocation Moderate Portfolio Allocation Moderate Portfolio (Prospectus Summary): P0001-S000008050Member Allocation Moderate Portfolio (Prospectus Summary): Class 3 C000021844Member Class 3 Allocation Balanced Portfolio S000008051Member Allocation Balanced Portfolio Allocation Balanced Portfolio (Prospectus Summary): P0001-S000008051Member Allocation Balanced Portfolio (Prospectus Summary): Class 3 C000021845Member Class 3 Multi-Managed Income/Equity Portfolio S000008052Member Multi-Managed Income/Equity Portfolio Multi-Managed Income/Equity Portfolio (Prospectus Summary): P0001-S000008052Member Multi-Managed Income/Equity Portfolio (Prospectus Summary): Class 1 C000021846Member Class 1 Class 2 C000021847Member Class 2 Class 3 C000021848Member Class 3 Multi-Managed Income Portfolio S000008053Member Multi-Managed Income Portfolio Multi-Managed Income Portfolio (Prospectus Summary): P0001-S000008053Member Multi-Managed Income Portfolio (Prospectus Summary): Class 1 C000021849Member Class 1 Class 2 C000021850Member Class 2 Class 3 C000021851Member Class 3 Asset Allocation: Diversified Growth Portfolio S000008054Member Asset Allocation: Diversified Growth Portfolio Asset Allocation: Diversified Growth Portfolio (Prospectus Summary): P0001-S000008054Member Asset Allocation: Diversified Growth Portfolio (Prospectus Summary): Class 1 C000021852Member Class 1 Class 2 C000021853Member Class 2 Class 3 C000021854Member Class 3 Stock Portfolio S000008055Member Stock Portfolio Stock Portfolio (Prospectus Summary): P0001-S000008055Member Stock Portfolio (Prospectus Summary): Class 1 C000021855Member Class 1 Class 2 C000021856Member Class 2 Class 3 C000021857Member Class 3 Large Cap Growth Portfolio S000008056Member Large Cap Growth Portfolio Large Cap Growth Portfolio (Prospectus Summary): P0001-S000008056Member Large Cap Growth Portfolio (Prospectus Summary): Class 1 C000021858Member Class 1 Class 2 C000021859Member Class 2 Class 3 C000021860Member Class 3 Large Cap Value Portfolio S000008058Member Large Cap Value Portfolio Large Cap Value Portfolio (Prospectus Summary): P0001-S000008058Member Large Cap Value Portfolio (Prospectus Summary): Class 1 C000021864Member Class 1 Class 2 C000021865Member Class 2 Class 3 C000021866Member Class 3