SA Fixed Income Index Portfolio Expense Example - SA Fixed Income Index Portfolio |
Dec. 31, 2025
USD ($)
|
|---|---|
| Class 1 | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 35 |
| Expense Example, with Redemption, 3 Years | 122 |
| Expense Example, with Redemption, 5 Years | 218 |
| Expense Example, with Redemption, 10 Years | 499 |
| Class 3 | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 60 |
| Expense Example, with Redemption, 3 Years | 202 |
| Expense Example, with Redemption, 5 Years | 356 |
| Expense Example, with Redemption, 10 Years | $ 805 |