State Street Emerging Markets Enhanced Index Portfolio Expense Example - State Street Emerging Markets Enhanced Index Portfolio |
Dec. 31, 2025
USD ($)
|
|---|---|
| Class A | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 56 |
| Expense Example, with Redemption, 3 Years | 185 |
| Expense Example, with Redemption, 5 Years | 325 |
| Expense Example, with Redemption, 10 Years | 734 |
| Class B | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 82 |
| Expense Example, with Redemption, 3 Years | 264 |
| Expense Example, with Redemption, 5 Years | 462 |
| Expense Example, with Redemption, 10 Years | $ 1,033 |