v3.26.1
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 60 Months Ended 120 Months Ended
May 31, 2026
May 31, 2026
May 31, 2026
C000026761      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Class A Shares    
C000026763      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Institutional Shares    
C000168177      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Class R6 Shares    
C000026762      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Service Shares    
Without Sales Load [Member] | C000026761      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.63% 3.40% 2.21%
Without Sales Load [Member] | C000026763      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.89% 3.54% 2.46%
Without Sales Load [Member] | C000168177      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.80% 3.56% 2.47%
Without Sales Load [Member] | C000026762      
Average Annual Return [Line Items]      
Average Annual Return, Percent 4.78% 3.46% 2.37%
FEDERATED INDEX: Bloomberg US Aggregate Bond Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg US Aggregate Bond Index    
Average Annual Return, Percent 5.13% 0.17% 1.70%
FEDERATED INDEX: Bloomberg US Aggregate Bond Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg US Aggregate Bond Index    
Average Annual Return, Percent 5.13% 0.17% 1.70%
FEDERATED INDEX: Bloomberg US Aggregate Bond Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg US Aggregate Bond Index    
Average Annual Return, Percent 5.13% 0.17% 1.70%
FEDERATED INDEX: Bloomberg US Aggregate Bond Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg US Aggregate Bond Index    
Average Annual Return, Percent 5.13% 0.17% 1.70%
FEDERATED INDEX: ICE BofA US 6-Month Treasury Bill Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name ICE BofA US 6-Month Treasury Bill Index    
Average Annual Return, Percent 3.97% 3.49% 2.43%
FEDERATED INDEX: ICE BofA US 6-Month Treasury Bill Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name ICE BofA US 6-Month Treasury Bill Index    
Average Annual Return, Percent 3.97% 3.49% 2.43%
FEDERATED INDEX: ICE BofA US 6-Month Treasury Bill Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name ICE BofA US 6-Month Treasury Bill Index    
Average Annual Return, Percent 3.97% 3.49% 2.43%
FEDERATED INDEX: ICE BofA US 6-Month Treasury Bill Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name ICE BofA US 6-Month Treasury Bill Index    
Average Annual Return, Percent 3.97% 3.49% 2.43%