v3.26.1
SA Franklin BW US Large Cap Value Portfolio Expense Example - SA Franklin BW US Large Cap Value Portfolio
Dec. 31, 2025
USD ($)
Class 1  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 72
Expense Example, with Redemption, 3 Years 237
Expense Example, with Redemption, 5 Years 416
Expense Example, with Redemption, 10 Years 937
Class 2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 87
Expense Example, with Redemption, 3 Years 284
Expense Example, with Redemption, 5 Years 498
Expense Example, with Redemption, 10 Years 1,114
Class 3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 97
Expense Example, with Redemption, 3 Years 316
Expense Example, with Redemption, 5 Years 552
Expense Example, with Redemption, 10 Years $ 1,231