v3.26.1
SA Multi-Managed Mid Cap Value Portfolio Expense Example - SA Multi-Managed Mid Cap Value Portfolio
Mar. 31, 2026
USD ($)
Class 1  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 104
Expense Example, with Redemption, 3 Years 324
Expense Example, with Redemption, 5 Years 562
Expense Example, with Redemption, 10 Years 1,246
Class 2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 119
Expense Example, with Redemption, 3 Years 371
Expense Example, with Redemption, 5 Years 643
Expense Example, with Redemption, 10 Years 1,419
Class 3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 129
Expense Example, with Redemption, 3 Years 403
Expense Example, with Redemption, 5 Years 697
Expense Example, with Redemption, 10 Years $ 1,534