SA Multi-Managed Diversified Fixed Income Portfolio Investment Objectives and Goals - SA Multi-Managed Diversified Fixed Income Portfolio	Mar. 31, 2025
Prospectus [Line Items]
Risk/Return [Heading]	SA Multi-Managed Diversified Fixed Income Portfolio
Objective [Heading]	<span style="color:#000000;font-family:Arial;font-size:12pt;font-style:italic;font-weight:bold;">Investment Goal</span>
Objective, Primary [Text Block]	The Portfolio’s investment goal is relatively high current income and secondarily capital appreciation.
Objective, Secondary [Text Block]	and secondarily capital appreciation.

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