S000000002 [Member] Expense Example, No Redemption - SA Franklin Mid Cap Core Portfolio - Class 3 |
Dec. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 98 |
| Expense Example, No Redemption, 3 Years | 316 |
| Expense Example, No Redemption, 5 Years | 561 |
| Expense Example, No Redemption, 10 Years | $ 1,266 |