SCB Classand Advisor Class [Member] Expense Example - Institutional - Small Cap Core Portfolio |
Sep. 30, 2025
USD ($)
|
|---|---|
| SCB Class | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 115 |
| Expense Example, with Redemption, 3 Years | 359 |
| Expense Example, with Redemption, 5 Years | 622 |
| Expense Example, with Redemption, 10 Years | 1,375 |
| Advisor Class | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 91 |
| Expense Example, with Redemption, 3 Years | 284 |
| Expense Example, with Redemption, 5 Years | 493 |
| Expense Example, with Redemption, 10 Years | $ 1,096 |