v3.25.2
Label Element Value
Institutional Shares | Federal National Mortgage Association [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 13.60%
Institutional Shares | United States Treasury Note [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 12.00%
Institutional Shares | Ginnie Mae II Pool [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 7.30%
Institutional Shares | Federal Home Loan Mortgage Corp. [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 6.80%
Institutional Shares | Kreditanstalt fuer Wiederaufbau [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 6.40%
Institutional Shares | United States Treasury Bond [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 5.10%
Institutional Shares | European Investment Bank [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 5.10%
Institutional Shares | United States Treasury STRIP [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 4.00%
Institutional Shares | First American Government Obligations Fund [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 2.10%
Institutional Shares | BX Trust [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 1.60%
Institutional Shares | Corporate Bonds [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 37.30%
Institutional Shares | Agency Residential Mortgage-Backed Securities [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 29.40%
Institutional Shares | U.S. Treasury Securities [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 21.20%
Institutional Shares | Foreign Government Agency Issues [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 5.10%
Institutional Shares | Asset-Backed Securities [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 4.80%
Institutional Shares | Money Market Funds [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 2.10%
Institutional Shares | Non-Agency Commercial Mortgage-Backed Securities [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 1.60%
Institutional Shares | Municipal Bonds [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 0.90%
Institutional Shares | U.S. Treasury Bills [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 0.10%
Institutional Shares | Cash & Other [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav (2.50%)