S000039473 [Member] Expense Example - Sit Quality Income Fund |
Mar. 31, 2025
USD ($)
|
|---|---|
| Sit Quality Income Fund - Class S | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 83 |
| Expense Example, with Redemption, 3 Years | 279 |
| Expense Example, with Redemption, 5 Years | 492 |
| Expense Example, with Redemption, 10 Years | 1,103 |
| Sit Quality Income Fund - Class Y | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 5,740 |
| Expense Example, with Redemption, 3 Years | 19,956 |
| Expense Example, with Redemption, 5 Years | 35,431 |
| Expense Example, with Redemption, 10 Years | $ 80,383 |