American Drive Moderate Allocation Portfolio Equity Securities Risk [Member] Fixedincome Securities Risk [Member] Allocation Risk [Member] Bank Loans Risk [Member] Below Investmentgrade Debt Securities Risk [Member] Cash Position Risk [Member] Collateralized Loan Obligations Risk [Member] Concentration Risk [Member] Convertible Securities Risk [Member] Credit Risks [Member] Defaulted And Distressed Securities Risk [Member] Derivatives Risk [Member] Emerging Markets Risk [Member] Environmental Social And Governance Considerations [Member] Foreign Investment Risk Currency Risk [Member] Growth Company Risk [Member] Hedging Risk [Member] Inflationlinked Securities Risk [Member] Investment Style Risk [Member] Large Company Risk [Member] Leveraging Risk [Member] Liquidity Risk [Member] Management And Operational Risk [Member] Market Risk [Member] Mortgage And Assetbacked Securities Risk [Member] Pooled Investments Risk [Member] Preferred Stock Risk [Member] Quantitative Models Risk [Member] Reit Risk [Member] Restricted Securities Risk [Member] Sector Risk [Member] Small And Midcap Company Risk [Member] Sovereign Debt Obligations Risk [Member] U S Government Securities Risk [Member] Valuation Risk [Member] Value Company Risk [Member] Whenissued Delayed Delivery Tba And Forward Commitment Transaction Risk [Member] American Drive Aggressive Allocation Portfolio American Drive Moderate Allocation Portfolio Class I American Drive Moderate Allocation Portfolio Class S American Drive Aggressive Allocation Portfolio Class I American Drive Aggressive Allocation Portfolio Class S