Shareholder Report, Holdings (Details)	Feb. 28, 2025
C000224642 \| Commercial Paper
Holdings [Line Items]
Percent of Net Asset Value	11.40%
C000224642 \| Other Repurchase Agreements
Holdings [Line Items]
Percent of Net Asset Value	22.40%
C000224642 \| Corporate Bonds
Holdings [Line Items]
Percent of Net Asset Value	28.70%
C000224642 \| Asset-Backed Securities
Holdings [Line Items]
Percent of Net Asset Value	36.60%
C000224641 \| Commercial Paper
Holdings [Line Items]
Percent of Net Asset Value	11.40%
C000224641 \| Other Repurchase Agreements
Holdings [Line Items]
Percent of Net Asset Value	22.40%
C000224641 \| Corporate Bonds
Holdings [Line Items]
Percent of Net Asset Value	28.70%
C000224641 \| Asset-Backed Securities
Holdings [Line Items]
Percent of Net Asset Value	36.60%
C000224644 \| 181 Days or more
Holdings [Line Items]
Percent of Net Asset Value	15.50%
C000224644 \| 91-180 Days
Holdings [Line Items]
Percent of Net Asset Value	14.40%
C000224644 \| 31-90 Days
Holdings [Line Items]
Percent of Net Asset Value	15.30%
C000224644 \| 8-30 Days
Holdings [Line Items]
Percent of Net Asset Value	2.60%
C000224644 \| 1-7 Days
Holdings [Line Items]
Percent of Net Asset Value	52.30%
C000224644 \| SectorPort
Holdings [Line Items]
Percent of Net Asset Value	0.30%
C000224644 \| SectorGeneral Obligation-Local (Appropriation)
Holdings [Line Items]
Percent of Net Asset Value	0.40%
C000224644 \| SectorSenior Care
Holdings [Line Items]
Percent of Net Asset Value	0.60%
C000224644 \| SectorHigher Education
Holdings [Line Items]
Percent of Net Asset Value	0.60%
C000224644 \| SectorWater & Sewer
Holdings [Line Items]
Percent of Net Asset Value	1.50%
C000224644 \| SectorHospital
Holdings [Line Items]
Percent of Net Asset Value	3.80%
C000224644 \| SectorAirport
Holdings [Line Items]
Percent of Net Asset Value	5.00%
C000224644 \| SectorElectric & Gas
Holdings [Line Items]
Percent of Net Asset Value	7.00%
C000224644 \| SectorIndustrial Development/Pollution Control
Holdings [Line Items]
Percent of Net Asset Value	17.30%
C000224644 \| SectorMulti-Family Housing
Holdings [Line Items]
Percent of Net Asset Value	18.00%
C000224644 \| SectorGeneral Obligation-Local
Holdings [Line Items]
Percent of Net Asset Value	23.70%
C000224643 \| 181 Days or more
Holdings [Line Items]
Percent of Net Asset Value	15.50%
C000224643 \| 91-180 Days
Holdings [Line Items]
Percent of Net Asset Value	14.40%
C000224643 \| 31-90 Days
Holdings [Line Items]
Percent of Net Asset Value	15.30%
C000224643 \| 8-30 Days
Holdings [Line Items]
Percent of Net Asset Value	2.60%
C000224643 \| 1-7 Days
Holdings [Line Items]
Percent of Net Asset Value	52.30%
C000224643 \| SectorPort
Holdings [Line Items]
Percent of Net Asset Value	0.30%
C000224643 \| SectorGeneral Obligation-Local (Appropriation)
Holdings [Line Items]
Percent of Net Asset Value	0.40%
C000224643 \| SectorSenior Care
Holdings [Line Items]
Percent of Net Asset Value	0.60%
C000224643 \| SectorHigher Education
Holdings [Line Items]
Percent of Net Asset Value	0.60%
C000224643 \| SectorWater & Sewer
Holdings [Line Items]
Percent of Net Asset Value	1.50%
C000224643 \| SectorHospital
Holdings [Line Items]
Percent of Net Asset Value	3.80%
C000224643 \| SectorAirport
Holdings [Line Items]
Percent of Net Asset Value	5.00%
C000224643 \| SectorElectric & Gas
Holdings [Line Items]
Percent of Net Asset Value	7.00%
C000224643 \| SectorIndustrial Development/Pollution Control
Holdings [Line Items]
Percent of Net Asset Value	17.30%
C000224643 \| SectorMulti-Family Housing
Holdings [Line Items]
Percent of Net Asset Value	18.00%
C000224643 \| SectorGeneral Obligation-Local
Holdings [Line Items]
Percent of Net Asset Value	23.70%