Shareholder Report, Holdings (Details) - C000081371 |
Mar. 31, 2025 |
|---|---|
| AssetRepurchase Agreements | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 65.00% |
| AssetGovernment & Agency Obligations | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 35.00% |
| Asset Other Net Line | |
| Holdings [Line Items] | |
| Percent of Net Asset Value | 0.00% |