v3.26.3
Form N-CSR Cover
12 Months Ended
Aug. 31, 2026
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Federated Hermes Adjustable Rate Securities Trust
Entity Central Index Key 0000771524
Entity Investment Company Type N-1A
Document Period End Date Aug. 31, 2026