v3.25.2
Shareholder Report, Holdings (Details)
Jun. 30, 2025
C000026831 | FICCRP TRI PARTY REPO AFR_934QYA005_4.390000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 10.10%
C000026831 | BANK OF AMERICA NA TRIPARTY D REPOFR_929AAV007_4.400000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
C000026831 | JP MORGAN SEC LLC TPR AFR_930PNJ004_4.390000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000026831 | Federal Farm Credit Banks Funding Corp.FR_3133ERXH9_4.445000_2025-10-15  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000026831 | U.S. Treasury BillsFR_912797RA7_0.010000_2026-01-02  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000026831 | U.S. Treasury BillsFR_912797QJ9_0.010000_2025-08-12  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000026831 | U.S. Treasury BillsFR_912797PP6_0.010000_2025-08-21  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000026831 | Federal Farm Credit Banks Funding Corp.FR_3133EP6U4_4.490000_2026-04-01  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000026831 | U.S. Treasury BillsFR_912797QB6_0.010000_2025-07-22  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000026831 | U.S. Treasury BillsFR_912797QP5_0.010000_2025-11-06  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000026831 | AssetTreasury Debt  
Holdings [Line Items]  
Percent of Net Asset Value 38.10%
C000026831 | AssetTreasury Repurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 21.80%
C000026831 | AssetGovernment Agency Debt  
Holdings [Line Items]  
Percent of Net Asset Value 20.60%
C000026831 | AssetGovernment Agency Repurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 15.40%
C000171428 | ABU DHABI INTERNATIONAL BANK IFR_ATD1WU744_4.330000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000171428 | HSBC Bank PLCFR_40433FUV9_4.760000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000171428 | JP MORGAN SEC LLC TPR D TRI PARTY REPO DFR_930PNG000_4.400000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000171428 | Chariot Funding LLCFR_15963REC3_4.690000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000171428 | MUFG Bank Ltd/New York NYFR_55381BHS0_4.560000_2025-08-21  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000171428 | NORINCHUKIN BK NEW YORKFR_65603A5F4_4.480000_2025-08-13  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000171428 | Macquarie Bank LtdFR_55607KVM5_0.000000_2025-08-21  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000171428 | Longship Funding LLCFR_54316TU18_0.010000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000171428 | Svenska Handelsbanken ABFR_86960LJV3_4.750000_2025-07-17  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000171428 | CANADIAN IMPERIAL BKFR_13606DHW5_4.470000_2025-10-10  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000171428 | AssetTreasury Repurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 0.40%
C000171428 | AssetGovernment Agency Repurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000171428 | AssetCertificates Of Deposit  
Holdings [Line Items]  
Percent of Net Asset Value 34.90%
C000171428 | AssetFinancial Company Commercial Paper  
Holdings [Line Items]  
Percent of Net Asset Value 30.20%
C000171428 | AssetAsset Backed Commercial Paper  
Holdings [Line Items]  
Percent of Net Asset Value 13.00%
C000171428 | AssetOther Notes  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000171428 | AssetOther Repurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000206723 | JP MORGAN SEC LLC TPR D TRI PARTY REPO DFR_ARP18MOP4_4.390000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000206723 | KBC Bank NVFR_ATD1WU1N8_4.330000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000206723 | ABN AMRO Bank NVFR_ATD1WU1P3_4.330000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000206723 | Abu Dhabi Islamic BankFR_ATD1WU6W3_4.330000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000206723 | Landesbank Baden-WuerttembergFR_51501Y3R1_4.340000_2025-07-07  
Holdings [Line Items]  
Percent of Net Asset Value 1.60%
C000206723 | Svenska Handelsbanken ABFR_ATD1WU6Y9_4.300000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000206723 | Mizuho Bank Ltd.FR_ATD1WU7E2_4.330000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000206723 | Canadian Imperial Bank of CommerceFR_ATD1WU876_4.330000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000206723 | Royal Bank of CanadaFR_ATD1WU8J0_4.330000_2025-07-01  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000206723 | Ionic Funding LLCFR_46224KUB2_0.000000_2025-07-11  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000206723 | AssetTreasury Repurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
C000206723 | AssetGovernment Agency Repurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000206723 | AssetCertificates Of Deposit  
Holdings [Line Items]  
Percent of Net Asset Value 31.00%
C000206723 | AssetFinancial Company Commercial Paper  
Holdings [Line Items]  
Percent of Net Asset Value 17.80%
C000206723 | AssetAsset Backed Commercial Paper  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000206723 | AssetOther Notes  
Holdings [Line Items]  
Percent of Net Asset Value 22.70%
C000206723 | AssetOther Repurchase Agreements  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%