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SA BlackRock Advantage International Portfolio Investment Objectives and Goals - SA BlackRock Advantage International Portfolio
Dec. 31, 2025
Prospectus [Line Items]  
Risk/Return [Heading] SA BlackRock Advantage International Portfolio (formerly, SA Morgan Stanley International Equities Portfolio)
Objective [Heading] <span style="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.