State Street Small Cap Equity VIS Fund Expense Example - State Street Small Cap Equity VIS Fund - Class 1 |
Dec. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 145 |
| Expense Example, with Redemption, 3 Years | 449 |
| Expense Example, with Redemption, 5 Years | 776 |
| Expense Example, with Redemption, 10 Years | $ 1,702 |