v3.26.1
SA International Index Portfolio Expense Example - SA International Index Portfolio
Dec. 31, 2025
USD ($)
Class 1  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 51
Expense Example, with Redemption, 3 Years 160
Expense Example, with Redemption, 5 Years 280
Expense Example, with Redemption, 10 Years 628
Class 3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 77
Expense Example, with Redemption, 3 Years 240
Expense Example, with Redemption, 5 Years 417
Expense Example, with Redemption, 10 Years $ 930