| Label | Element | Value |
|---|---|---|
| Institutional Class Shares | United States Treasury Bill [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 100.00% |
| Institutional Class Shares | Government [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 100.00% |