SA Goldman Sachs Multi-Asset Insights Portfolio Investment Strategy - SA Goldman Sachs Multi-Asset Insights Portfolio	Dec. 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 seeks to achieve its investment goal through strategically and dynamically allocating its assets to various equity and fixed income asset classes. Under normal market conditions, the Portfolio targets an allocation of approximately 70% of its assets to equity exposure and approximately 30% of its assets to fixed income exposure, although the Portfolio’s equity exposure may range from approximately 60%-80% of its net assets and its allocation to fixed income exposure may range from approximately 20%-40% of its net assets. The equity securities in which the Portfolio intends to invest, or obtain exposure to, include common stock, preferred stock, rights and warrants, and depositary receipts relating to equity securities. The Portfolio may invest in, or obtain exposure to, equity securities of U.S. and non-U.S. issuers of any market capitalization range, including securities of issuers located in emerging markets. The Portfolio’s ability to invest in both U.S. and non-U.S. securities allows it to diversify its assets across different geographic regions. The foreign equity securities in which the Portfolio intends to invest, or obtain exposure to, may be denominated in U.S. dollars or foreign currencies and may be currency hedged or unhedged. The Portfolio may also obtain exposure to equity securities by investing in exchange-traded funds (“ETFs”). The fixed income securities in which the Portfolio intends to invest, or obtain exposure to, include corporate debt instruments, U.S. government securities, high-yield debt securities (junk bonds), convertible notes, money market instruments and/or cash or cash equivalents. The Portfolio may also obtain exposure to fixed income securities by investing in ETFs. The Portfolio may invest in derivatives, such as equity index futures, interest rate futures, interest rate swaps, credit default swaps and forward foreign currency exchange contracts for hedging and non-hedging purposes, as well as to increase the return on its portfolio investments. The Portfolio will adjust its equity/fixed income exposure +/- 10%, as described above, based on market and macroeconomic views of Goldman Sachs Asset Management L.P. (“GSAM”), the Portfolio’s subadviser. GSAM will implement such adjustment by reallocating the Portfolio’s investments in equity and fixed income securities and/or by investing in ETFs and/or derivatives. In managing the Portfolio, GSAM develops a strategic allocation across the various asset classes by budgeting or allocating portfolio risk across a set of asset allocation risk factors, including, but not limited to, market cap, interest rate, emerging markets, credit, equity style, momentum and active risk. The resulting strategic asset allocation is implemented using a range of bottom-up security selection strategies across equity and fixed income asset classes. Within equities, securities are selected using fundamental research and a variety of quantitative techniques primarily based on the following investment themes, including, among others, Fundamental Mispricings, High Quality Business Models, Sentiment Analysis and Market Themes & Trends. Within these models, GSAM may utilize artificial intelligence techniques, such as natural language processing and machine learning, to, among other things, help extract information from various textual or audio datasets. Fundamental Mispricings seeks to identify high-quality businesses trading at a fair price, which the Investment Adviser believes leads to strong performance over the long-run. High Quality Business Models seeks to identify companies that are generating high quality revenues with sustainable business models and aligned management incentives. Sentiment Analysis seeks to identify stocks experiencing improvements in their overall market sentiment. Market Themes and Trends seeks to identify companies positively positioned to benefit from themes and trends in the market and macroeconomic environment. GSAM may make investment decisions that deviate from those generated by its proprietary models, at its discretion. In addition, GSAM may, in its discretion, make changes to its quantitative techniques, or use other quantitative techniques that are based on its proprietary research. The Portfolio places an emphasis on managing risk relative to its benchmark index, which is comprised of the following: 38.5% S&P 500® Index, 3.5% S&P Midcap 400® Index, 3.5% Russell 2000® Index, 24.5% MSCI EAFE Index (net) and 30% Bloomberg U.S. Government/Credit Index (the “Blended Index”). To manage the Portfolio’s risk relative to the Blended Index, GSAM intends to dynamically adjust the Portfolio’s risk exposure by making passive index investments through the use of equity and interest rate futures and ETFs, if required by the Portfolio’s risk management parameters. These risk management parameters include restrictions designed to limit how far the Portfolio’s returns are permitted to deviate from those of the Blended Index. Such restrictions may result in the Portfolio having returns that track the Blended Index more consistently and more closely than would otherwise be the case. These restrictions may prevent a significant deviation from the returns of the Blended Index, but may also limit the Portfolio’s ability to outperform the returns of the Blended Index. The subadviser may engage in frequent and active trading of portfolio securities.

SA Goldman Sachs Multi-Asset Insights Portfolio Investment Strategy - SA Goldman Sachs Multi-Asset Insights Portfolio

Dec. 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 seeks to achieve its investment goal through strategically and dynamically allocating its assets to various equity and fixed income asset classes. Under normal market conditions, the Portfolio targets an allocation of approximately 70% of its assets to equity exposure and approximately 30% of its assets to fixed income exposure, although the Portfolio’s equity exposure may range from approximately 60%-80% of its net assets and its allocation to fixed income exposure may range from approximately 20%-40% of its net assets. The equity securities in which the Portfolio intends to invest, or obtain exposure to, include common stock, preferred stock, rights and warrants, and depositary receipts relating to equity securities. The Portfolio may invest in, or obtain exposure to, equity securities of U.S. and non-U.S. issuers of any market capitalization range, including securities of issuers located in emerging markets. The Portfolio’s ability to invest in both U.S. and non-U.S. securities allows it to diversify its assets across different geographic regions. The foreign equity securities in which the Portfolio intends to invest, or obtain exposure to, may be denominated in U.S. dollars or foreign currencies and may be currency hedged or unhedged. The Portfolio may also obtain exposure to equity securities by investing in exchange-traded funds (“ETFs”). The fixed income securities in which the Portfolio intends to invest, or obtain exposure to, include corporate debt instruments, U.S. government securities, high-yield debt securities (junk bonds), convertible notes, money market instruments and/or cash or cash equivalents. The Portfolio may also obtain exposure to fixed income securities by investing in ETFs. The Portfolio may invest in derivatives, such as equity index futures, interest rate futures, interest rate swaps, credit default swaps and forward foreign currency exchange contracts for hedging and non-hedging purposes, as well as to increase the return on its portfolio investments. The Portfolio will adjust its equity/fixed income exposure +/- 10%, as described above, based on market and macroeconomic views of Goldman Sachs Asset Management L.P. (“GSAM”), the Portfolio’s subadviser. GSAM will implement such adjustment by reallocating the Portfolio’s investments in equity and fixed income securities and/or by investing in ETFs and/or derivatives. In managing the Portfolio, GSAM develops a strategic allocation across the various asset classes by budgeting or allocating portfolio risk across a set of asset allocation risk factors, including, but not limited to, market cap, interest rate, emerging markets, credit, equity style, momentum and active risk. The resulting strategic asset allocation is implemented using a range of bottom-up security selection strategies across equity and fixed income asset classes. Within equities, securities are selected using fundamental research and a variety of quantitative techniques primarily based on the following investment themes, including, among others, Fundamental Mispricings, High Quality Business Models, Sentiment Analysis and Market Themes & Trends. Within these models, GSAM may utilize artificial intelligence techniques, such as natural language processing and machine learning, to, among other things, help extract information from various textual or audio datasets. Fundamental Mispricings seeks to identify high-quality businesses trading at a fair price, which the Investment Adviser believes leads to strong performance over the long-run. High Quality Business Models seeks to identify companies that are generating high quality revenues with sustainable business models and aligned management incentives. Sentiment Analysis seeks to identify stocks experiencing improvements in their overall market sentiment. Market Themes and Trends seeks to identify companies positively positioned to benefit from themes and trends in the market and macroeconomic environment. GSAM may make investment decisions that deviate from those generated by its proprietary models, at its discretion. In addition, GSAM may, in its discretion, make changes to its quantitative techniques, or use other quantitative techniques that are based on its proprietary research. The Portfolio places an emphasis on managing risk relative to its benchmark index, which is comprised of the following: 38.5% S&P 500® Index, 3.5% S&P Midcap 400® Index, 3.5% Russell 2000® Index, 24.5% MSCI EAFE Index (net) and 30% Bloomberg U.S. Government/Credit Index (the “Blended Index”). To manage the Portfolio’s risk relative to the Blended Index, GSAM intends to dynamically adjust the Portfolio’s risk exposure by making passive index investments through the use of equity and interest rate futures and ETFs, if required by the Portfolio’s risk management parameters. These risk management parameters include restrictions designed to limit how far the Portfolio’s returns are permitted to deviate from those of the Blended Index. Such restrictions may result in the Portfolio having returns that track the Blended Index more consistently and more closely than would otherwise be the case. These restrictions may prevent a significant deviation from the returns of the Blended Index, but may also limit the Portfolio’s ability to outperform the returns of the Blended Index. The subadviser may engage in frequent and active trading of portfolio securities.