SA Franklin Allocation Moderately Aggressive Portfolio Investment Strategy - SA Franklin Allocation Moderately Aggressive Portfolio	Mar. 31, 2025
Prospectus [Line Items]
Strategy [Heading]	<span style="color:#000000;font-family:Arial;font-size:12pt;font-style:italic;font-weight:bold;">Principal Investment Strategies of the Portfolio</span>
Strategy Narrative [Text Block]	The Portfolio attempts to achieve its investment goal by investing, under normal circumstances, through strategic allocation of approximately 80% (with a range of 65-95%) of its assets in equity securities and approximately 20% (with a range of 5-35%) of its assets in fixed income securities. Using qualitative analysis and quantitative techniques, the subadviser adjusts portfolio allocations from time to time within these ranges to try to optimize the Portfolio’s performance consistent with its goal.The subadviser invests mainly in a diversified portfolio of equity securities (growth or value stocks or both) of companies of any size. The subadviser may consider, among other things, a company’s valuation, financial strength, growth potential, competitive position in its industry, projected future earnings, cash flows and dividends when deciding whether to buy or sell equity investments. The subadviser also invests, to a lesser extent, in a diversified portfolio of fixed income investments, including both U.S. and foreign government obligations and corporate obligations. The subadviser may consider, among other things, credit, interest rate and prepayment risks, as well as general market conditions when deciding whether to buy or sell fixed income investments.The Portfolio may invest in foreign securities (up to 60% of net assets), and short-term investments (up to 20% of net assets).The Portfolio may invest in derivatives, such as equity index futures, options, foreign currency forwards and total return swaps. The subadviser may invest in such instruments for hedging and non-hedging purposes: for example, the subadviser may use foreign currency forwards to increase or decrease the portfolio’s exposure to a particular currency or group of currencies. Derivatives may also be used as a substitute for a direct investment in the securities of one or more issuers, or they may be used to take “short” positions, the values of which move in the opposite direction from the underlying investment, index or currency.

SA Franklin Allocation Moderately Aggressive Portfolio Investment Strategy - SA Franklin Allocation Moderately Aggressive Portfolio

Mar. 31, 2025

<span style="color:#000000;font-family:Arial;font-size:12pt;font-style:italic;font-weight:bold;">Principal Investment Strategies of the Portfolio</span>

Strategy Narrative [Text Block]

The Portfolio attempts to achieve its investment goal by investing, under normal circumstances, through strategic allocation of approximately 80% (with a range of 65-95%) of its assets in equity securities and approximately 20% (with a range of 5-35%) of its assets in fixed income securities. Using qualitative analysis and quantitative techniques, the subadviser adjusts portfolio allocations from time to time within these ranges to try to optimize the Portfolio’s performance consistent with its goal.The subadviser invests mainly in a diversified portfolio of equity securities (growth or value stocks or both) of companies of any size. The subadviser may consider, among other things, a company’s valuation, financial strength, growth potential, competitive position in its industry, projected future earnings, cash flows and dividends when deciding whether to buy or sell equity investments. The subadviser also invests, to a lesser extent, in a diversified portfolio of fixed income investments, including both U.S. and foreign government obligations and corporate obligations. The subadviser may consider, among other things, credit, interest rate and prepayment risks, as well as general market conditions when deciding whether to buy or sell fixed income investments.The Portfolio may invest in foreign securities (up to 60% of net assets), and short-term investments (up to 20% of net assets).The Portfolio may invest in derivatives, such as equity index futures, options, foreign currency forwards and total return swaps. The subadviser may invest in such instruments for hedging and non-hedging purposes: for example, the subadviser may use foreign currency forwards to increase or decrease the portfolio’s exposure to a particular currency or group of currencies. Derivatives may also be used as a substitute for a direct investment in the securities of one or more issuers, or they may be used to take “short” positions, the values of which move in the opposite direction from the underlying investment, index or currency.