v3.25.2
SA Allocation Moderately Aggressive Portfolio Investment Objectives and Goals - SA Allocation Moderately Aggressive Portfolio
Mar. 31, 2025
Prospectus [Line Items]  
Risk/Return [Heading] SA Allocation Moderately Aggressive Portfolio (formerly, SA Allocation Moderate Growth 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 long-term capital appreciation.