SCB Classand Advisor Class [Member] Expense Example - Institutional - International Strategic Equities Portfolio |
Sep. 30, 2025
USD ($)
|
|---|---|
| SCB Class | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 95 |
| Expense Example, with Redemption, 3 Years | 296 |
| Expense Example, with Redemption, 5 Years | 515 |
| Expense Example, with Redemption, 10 Years | 1,143 |
| Advisor Class | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 72 |
| Expense Example, with Redemption, 3 Years | 224 |
| Expense Example, with Redemption, 5 Years | 390 |
| Expense Example, with Redemption, 10 Years | $ 871 |